Sierra Wireless MC5728 PCA,EVDO MINI-PCI EXPRESS CARD CDMA MODEM User Manual HW Integration Guide

Sierra Wireless Inc. PCA,EVDO MINI-PCI EXPRESS CARD CDMA MODEM HW Integration Guide

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MC5728 User Manual HTML Version

Manual

Includes:

MC5725 / MC5725V

MC5727 / MC5727V

MC5728 / MC5728V

MC8775 / MC8775V

MC8780 / MC8781

MC8785V

MC8790 / MC8790V

MC8791V

2130114

Rev 1.9.1

CDMA and GSM / UMTS Mini Card

Hardware Integration Guide

Proprietary and Confidential

Preface

Rev 1.9.1 Feb.09 Proprietary and Confidential 3

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

Important Notice Duetothenatureofwirelesscommunications,transmission

andreceptionofdatacanneverbeguaranteed.Datamaybe

delayed,corrupted(i.e.,haveerrors)orbetotallylost.

Althoughsignificantdelaysorlossesofdataarerarewhen

wirelessdevicessuchastheSierraWirelessmodemareusedin

anormalmannerwithawell‐constructednetwork,theSierra

Wirelessmodemshouldnotbeusedinsituationswherefailure

totransmitorreceivedatacouldresultindamageofanykind

totheuseroranyotherparty,includingbutnotlimitedto

personalinjury,death,orlossofproperty.SierraWireless

acceptsnoresponsibilityfordamagesofanykindresulting

fromdelaysorerrorsindatatransmittedorreceivedusingthe

SierraWirelessmodem,orforfailureoftheSierraWireless

modemtotransmitorreceivesuchdata.

Safety and Hazards DonotoperatetheSierraWirelessmodeminareaswhere

blastingisinprogress,whereexplosiveatmospheresmaybe

present,nearmedicalequipment,nearlifesupportequipment,

oranyequipmentwhichmaybesusceptibletoanyformof

radiointerference.Insuchareas,theSierraWirelessmodem

MUSTBEPOWEREDOFF.TheSierraWirelessmodemcan

transmitsignalsthatcouldinterferewiththisequipment.

DonotoperatetheSierraWirelessmodeminanyaircraft,

whethertheaircraftisonthegroundorinflight.Inaircraft,the

SierraWirelessmodemMUSTBEPOWEREDOFF.When

operating,theSierraWirelessmodemcantransmitsignalsthat

couldinterferewithvariousonboardsystems.

Note: Some airlines may permit the use of cellular phones while the

aircraft is on the ground and the door is open. Sierra Wireless

modems may be used at this time.

Thedriveroroperatorofanyvehicleshouldnotoperatethe

SierraWirelessmodemwhileincontrolofavehicle.Doingso

willdetractfromthedriveroroperatorʹscontrolandoperation

ofthatvehicle.Insomestatesandprovinces,operatingsuch

communicationsdeviceswhileincontrolofavehicleisan

offence.

Limitation of

Liability

Theinformationinthismanualissubjecttochangewithout

noticeanddoesnotrepresentacommitmentonthepartof

SierraWireless.SIERRAWIRELESSANDITSAFFILIATES

SPECIFICALLYDISCLAIMLIABILITYFORANYANDALL

DIRECT,INDIRECT,SPECIAL,GENERAL,INCIDENTAL,

CONSEQUENTIAL,PUNITIVEOREXEMPLARYDAMAGES

INCLUDING,BUTNOTLIMITEDTO,LOSSOFPROFITSOR

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

4 Proprietary and Confidential 2130114

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

REVENUEORANTICIPATEDPROFITSORREVENUE

ARISINGOUTOFTHEUSEORINABILITYTOUSEANY

SIERRAWIRELESSPRODUCT,EVENIFSIERRAWIRELESS

AND/ORITSAFFILIATESHASBEENADVISEDOFTHE

POSSIBILITYOFSUCHDAMAGESORTHEYARE

FORESEEABLEORFORCLAIMSBYANYTHIRDPARTY.

Notwithstandingtheforegoing,innoeventshallSierra

Wirelessand/oritsaffiliatesaggregateliabilityarisingunderor

inconnectionwiththeSierraWirelessproduct,regardlessof

thenumberofevents,occurrences,orclaimsgivingriseto

liability,beinexcessofthepricepaidbythepurchaserforthe

SierraWirelessproduct.

Patents Portionsofthisproductmaybecoveredbysomeorallofthe

followingUSpatents:

5,515,013 5,629,960 5,845,216 5,847,553 5,878,234

5,890,057 5,929,815 6,169,884 6,191,741 6,199,168

6,339,405 6,359,591 6,400,336 6,516,204 6,561,851

6,643,501 6,653,979 6,697,030 6,785,830 6,845,249

6,847,830 6,876,697 6,879,585 6,886,049 6,968,171

6,985,757 7,023,878 7,053,843 7,106,569 7,145,267

7,200,512 7,295,171 7,287,162 D442,170 D459,303

D599,256 D560,911

andotherpatentspending.

Thisproductincludestechnologylicensedfrom

QUALCOMM®3G.

ManufacturedorsoldbySierraWirelessoritslicenseesunder

oneormorepatentslicensedfromInterDigitalGroup.

Trademarks AirCard®and“HeartoftheWirelessMachine®”areregistered

trademarksofSierraWireless.Watcher®isatrademarkof

SierraWireless,registeredintheEuropeanCommunity.

SierraWireless,theSierraWirelesslogo,theredwavedesign,

andthered‐tippedantennaaretrademarksofSierraWireless.

Windows®isaregisteredtrademarkofMicrosoftCorporation.

QUALCOMM®isaregisteredtrademarkofQUALCOMM

Incorporated.Usedunderlicense.

Linux®isaregisteredtrademarkofLinusTorvalds.

Othertrademarksarethepropertyoftherespectiveowners.

Preface

Rev 1.9.1 Feb.09 Proprietary and Confidential 5

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

Contact

Information

Consultourwebsiteforup‐to‐dateproductdescriptions,

documentation,applicationnotes,firmwareupgrades,trouble‐

shootingtips,andpressreleases:

www.sierrawireless.com

Revision History

Sales Desk: Phone: 1-604-232-1488

Hours: 8:00 AM to 5:00 PM Pacific Time

E-mail: sales@sierrawireless.com

Post: Sierra Wireless

13811 Wireless Way

Richmond, BC

Canada V6V 3A4

Fax: 1-604-231-1109

Web: www.sierrawireless.com

Revision

number Release

date Changes

1.5 Jul 2007 •Added 8780/81 content

•Added SED description

•Fixed details about capacitance

•Added connector pin details

1.6 Unreleased Changes incorporated into v1.7.

1.7 Apr 2008 •Removed references to RUIM

(MC57xx products)

•Removed “Diversity antenna

must fold down” (“Diversity

antenna design requirements

(MC57xx / MC8780 / MC8781 /

MC8785V / MC8790 / MC8790V

/ MC8791V / MC8792V)” on

page 105).

•Removed references to

MC5720, MC8755, MC8755V,

and MC8765.

•Corrected LED characteristics

(“Faster blink” on page 64)

•Added content for MC5725,

MC5725V, and MC8785V

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

6 Proprietary and Confidential 2130114

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

1.8 Sep 2008 •Added content for MC8790,

MC8790V, MC8791V, and

MC8792V

1.9 Oct 2008 •Added AT command entry timing

note and Linux content to testing

chapter

•Corrected range for external pull

up resistor in Figure 5-2

1.91 Feb 2009 •Added content for MC5728 and

MC5728V (FCC)

Revision

number Release

date Changes

Rev 1.9.1 Feb.09 Proprietary and Confidential 7

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

The Universal Development Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Required connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Guide organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Related documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Power Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Overview of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Power signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Electrostatic discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Module power states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Disconnected state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Off state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Normal state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Low power mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Voltage monitoring state machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Temperature monitoring state machine . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Inrush currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Timing requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Power ramp-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Power-up timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Transmit power wave form (GSM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Current consumption overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

SED (Smart Error Detection) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Usage models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

8 Proprietary and Confidential 2130114

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

RF Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

RF connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Ground connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Antenna and cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Interference and sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Power supply noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Interference from other wireless devices . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Device-generated RF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Methods to mitigate decreased Rx performance . . . . . . . . . . . . . . . . . . . 42

Radiated sensitivity measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Sierra Wireless’ sensitivity testing and desensitization investigation . . 43

OTA test chamber configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Path loss calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Positioning the DUT (Device Under Test) . . . . . . . . . . . . . . . . . . . . . . . . . 45

Sensitivity vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Audio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

System block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Modes of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Sidetone support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Echo cancellation support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Audio signal interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Audio function partitioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Host / Module Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Host interface pin details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

USB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

USB handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

LED output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

USIM interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Table of Contents

Rev 1.9.1 Feb.09 Proprietary and Confidential 9

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

USIM operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Extended AT commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Thermal Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

Thermal considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Design Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

AT command entry timing requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Acceptance testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Test requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Test procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Certification testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Production testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Suggested manual functional test procedure . . . . . . . . . . . . . . . . . . . . . . . . . 80

Suggested test plan procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Testing RF transmission path—MC57xx . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Testing RF transmission path—MC87xx . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Testing RF Receive path—MC57xx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Testing RF Receive path—MC87xx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Testing GPS Receiver—MC8775V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Test Audio Loop-back—MC5725V / MC5727V / MC5728V / MC8775V /

MC8785V / MC8790V / MC8791V / MC8792V . . . . . . . . . . . . . . . . . . . . . . . 94

Quality assurance testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Suggested testing equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Antenna Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

Required antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Frequency bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

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Antenna design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

General antenna design requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Main antenna design requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Diversity antenna design requirements (MC57xx / MC8780 / MC8781 /

MC8785V / MC8790 / MC8790V / MC8791V / MC8792V) . . . . . . . . . . . . . 105

GPS antenna design requirements (MC57xx / MC8775V / MC878x) . . 105

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Voltage Standing Wave Ratio (VSWR) . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Antenna-to-antenna isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Peak gain and radiation patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Fading correlation coefficient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Important notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Safety and hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Important compliance information for North American users . . . . . . . . . . 112

EU regulatory conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Acronyms and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

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1: Introduction

SierraWireless’MiniCardmodulesformtheradiocomponent

fortheproductsinwhichtheyareembedded.MiniCardsare

availableforuseonCDMAandGSMnetworks,including:

Note: Throughout this

document, MC57xx and MC87xx

refer to the entire suites of

CDMA and GSM Mini Cards

respectively.

•MC5725/MC5725V/MC5727/MC5727V/MC5728/MC5728V—

OperateonCDMAnetworksusingtheCDMAIS‐95A,1X,

and1xEV‐DO(IS‐856)networkstandards,andsupport

GPS.

•MC8775 / MC8775V—operateonGSMnetworksusingthe

GSM/GPRS/EDGE/UMTS/HSDPAnetworkstandards,

andsupportStandaloneGPSfunctionality.

•MC8780 / MC8781 / MC8785V / MC8790 / MC8790V / MC8791V /

MC8792V—operateonGSMnetworksusingtheGSM/

GPRS/EDGE/UMTS/HSDPA/HSUPAnetwork

standards,andsupportStandaloneGPS,gpsOneXTRA™,

A‐GPS,selectedenhancedNavigation2.0features,andfive

NMEAsentences.

Purpose of this guide

ThisguideaddressesissuesthataffecttheintegrationofSierra

Wirelessmodulesintohostproducts,andincludesdesign

recommendationsforthehostproducts.

Note: An understanding of network technology and experience in

integrating hardware components into electronic equipment is

assumed.

The Universal Development Kit

SierraWirelessmanufacturesaUniversalDevelopmentKit

(UDK)thatfacilitatesallphasesoftheintegrationprocess.

Thiskitisahardwaredevelopmentplatformthatisdesigned

tosupportmultiplemembersofthewirelessembedded

moduleproductfamily.Itcontainsthehardwarecomponents

thataretypicallynecessaryforevaluatinganddevelopingwith

themodule,including:

•Developmentboard

•Cables

•Antennas

•Otheraccessories

ForinstructionsonsettinguptheUDK,seePCIExpressMini

CardDevKitQuickStartGuide(Document2130705).

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

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Required connectors

Note: Contact vendors before

choosing your connectors — the

numbers included here are for

reference only. Choose

connectors that are appropriate

to your design.

Whenintegratingthesemodulesintoyourhostdevice,you

needthefollowingconnectortypes:

•RFcablesthatmatewithHiroseU.FLconnectors(model

U.FL#CL331‐0471‐0‐10).Modulesincludeoneortwo

connectorjacksdependingonindividualmodulesupport

fordiversityorGPSfunctionality.

•Industry‐standardmatingconnectorfor52‐pinEDGE—

somemanufacturersincludeTyco,Foxconn,andMolex.For

example,theconnectorusedontheMiniCardDevKit

boardisaMolex67910‐0001.

•Industry‐standardUSIMconnector(MC87xxonly)—the

actualconnectoryouusedependsonhowyourdevice

exposestheUSIMsocket.Forexample,theUSIMconnector

usedontheMiniCardDevKitboardisanITTCCM03‐

3518.

Guide organization

Thisguideincludesthefollowingsections:

1. Introduction(thissection)

2. Power Interface(p.17)

Describespowercontrolsignalsusedbythemoduleand

discussesdesignissuesrelatedtopowersupply

integration.

3. RF Integration(p.37)

Describesantennaconnectionmethodsandgroundingissues,

RFinterferenceanddesenseissues.

4. Audio Interface(p.51)

Describessupportedaudiomodesandrelateddetails.

5. Host / Module Interfaces(p.61)

DescribestheUSBinterfaceforhost/modulecommunication,

andtheUSIMinterfaceforhost/moduleintegration.

6. Thermal Considerations(p.73)

Describesthermalcharacteristicsofthemoduleandprovides

suggestionsfortestingandaddressingthermalissues.

7. Design Checklist(p.75)

Summarizesdesignconsiderationsforintegrationof

MiniCardsinyourhostdevices.

8. Testing(p.77)

Describessuggestedacceptance,certification,production,and

qualityassurancetests.

9. Antenna Specification(p.101)

Describesantennarequirementsandtestingdetails.

Introduction

Rev 1.9.1 Feb.09 Proprietary and Confidential 13

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10. Regulatory Information(p.111)

Describesregulatoryapprovalsandregulatoryinformation

requirements.

11. Acronyms and Definitions(p.115)

Listsacronymsanddefinitionsusedthroughoutthisguide.

12. Index(p.119)

Note: The term "host" always refers to the host device.

Related documents

Thisguidedealsspecificallywithhardwareintegrationissues

thatareuniquetotheMC57xxandMC87xxmodules.

Table1‐1listsotherdocumentsreferencedinthisguide.

Table 1-1: Related documentation

Document title Description

AT Command Set for User

Equipment (UE) (Release 6) Standard AT commands for GSM / UMTS devices.

Download this document (3GPP TS 27.007) from

www.3gpp.org.

CDMA 1X Standard Technical requirements for CDMA systems, including

details on sleep cycle index (SCI) values.

Order this document, CDMA 2000 Series Release A

(2000) (document # TIA/EIA/IS-2000 Series, Release A)

from www.tiaonline.org.

CDMA CnS Reference

(Document 2130754) CnS (Control and Status) messages that are supported by

the MC5725 / MC5725V

CDMA AT Command Reference

(Document 2130620) Proprietary, basic AT commands for the MC5725 /

MC5725V / MC5727 / MC5727V / MC5728 / MC5728V.

For MC87xx-specific commands, see UMTS Modems

Supported AT Command Reference (Document 2130617).

CDMA Extended AT Command

Reference (Document

2130621)

Proprietary AT commands for the MC5725 / MC5725V /

MC5727 / MC5727V / MC5728 / MC5728V. For MC87xx-

specific commands, see MC87xx Modem Extended AT

Command Reference (Document 2130616).

FCC Regulations - Part 15 -

Radio Frequency Devices This section of the FCC Code of Federal Regulations, Title

47 deals with radio frequency devices, including shielding

requirements for embedded modules.

Download this regulation from http://wireless.fcc.gov.

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

14 Proprietary and Confidential 2130114

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IEC-61000-4-2 level 3 Techniques for testing and measuring electrostatic

discharge (ESD) immunity.

Order this document from www.iec.ch.

MC5725 Mini Card Product

Specification (Document

2130663)

Features, mechanical and electrical specifications, and

standards compliance of the MC5725.

MC5725V Mini Card Product

Specification (Document

2130671)

Features, mechanical and electrical specifications, and

standards compliance of the MC5725V.

MC5727 Mini Card Product

Specification (Document

2130958)

Features, mechanical and electrical specifications, and

standards compliance of the MC5727.

MC5727V Mini Card Product

Specification (Document

2131023)

Features, mechanical and electrical specifications, and

standards compliance of the MC5727V.

MC5728V Mini Card Product

Specification (Document

2111350)

Features, mechanical and electrical specifications, and

standards compliance of the MC5728V.

MC8775 PCI Express Mini Card

Product Specification

(Document 2130697)

Features, mechanical and electrical specifications, and

standards compliance of the MC8775.

MC8775V with Audio PCI

Express Mini Card Product

Specification (Document

2130700)

Features, mechanical and electrical specifications, and

standards compliance of the MC8775V.

MC8780 / MC8781 PCI Express

Mini Card Product

Specification (Document

2130782)

Features, mechanical and electrical specifications, and

standards compliance of the MC8780 / MC8781.

MC8785V PCI Express Mini

Card Product Specification

(Document 2130932)

Features, mechanical and electrical specifications, and

standards compliance of the MC8785V.

MC8790 PCI Express Mini Card

Product Specification

(Document 2111279)

Features, mechanical and electrical specifications, and

standards compliance of the MC8790.

MC8790V PCI Express Mini

Card Product Specification

(Document 2111280)

Features, mechanical and electrical specifications, and

standards compliance of the MC8790V.

MC8791V PCI Express Mini

Card Product Specification

(Document 2131032)

Features, mechanical and electrical specifications, and

standards compliance of the MC8791V.

Table 1-1: Related documentation (Continued)

Document title Description

Introduction

Rev 1.9.1 Feb.09 Proprietary and Confidential 15

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

MC8792V PCI Express Mini

Card Product Specification

(Document 2131033)

Features, mechanical and electrical specifications, and

standards compliance of the MC8792V.

MC87XX Modem CnS

Reference (Document

2130602)

CnS (Control and Status) messages supported by the

MC87xx series of modems.

MC87xx Modem CnS Reference

(Voice) (Document 2130817) Voice-related CnS (Control and Status) messages

supported by the MC8775V, MC8785V,

MC8790V,MC8791V, and MC8792V.

UMTS Modems Supported AT

Command Reference

(Document 2130617)

Proprietary, basic AT commands for the MC87xx. For

MC57xx-specific commands, see the CDMA AT

Command Reference (Document 2130620).

MC87xx Modem Extended AT

Command Reference

(Document 2130616)

Proprietary AT commands for the MC87xx. For MC57xx-

specific commands, see the CDMA Extended AT

Command Reference (Document 2130621).

Mobile Station (MS)

Conformance Specification;

Part 4: Subscriber Interface

Module

SIM testing methods.

Download this document (3GPP TS 11.10-4) from

www.3gpp.org.

PCI Express Mini Card Dev Kit

Quick Start Guide (Document

2130705)

Setup and configuration of modules.

PCI Express Mini Card

Electromechanical

Specification Revision 1.1

Download this document from www.pcisig.com.

Universal Serial Bus

Specification, Rev 2.0 Download this specification from www.usb.org.

Table 1-1: Related documentation (Continued)

Document title Description

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

16 Proprietary and Confidential 2130114

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Rev 1.9.1 Feb.09 Proprietary and Confidential 17

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2: Power Interface

Overview of operation

Note: This chapter contains information for CDMA (MC57xx) and

GSM (MC87xx) modules.

Information that is unique to specific module types is clearly

identified.

Themoduleisdesignedtousea3.3V(nominal)powersupply,

providedbythehost.Itisthehost’sresponsibilitytoprovide

safeandcontinuouspowertothemoduleatalltimes;the

moduledoesNOThaveanindependentpowersupply,or

protectioncircuitstoguardagainstelectricalissues.

Thehostcontrolsthemodule’spowerstateusingthe

W_Disable#signalasshowninFigure2‐1.Thesignalisdriven

lowbythehosttopoweroffthemodem,orleftfloating(high

impedance)topoweronthemodem.Themodulealso

monitorsitssupplyvoltageandrequestsshutdownifthe

supplyisinsufficient(seeVoltage monitoring state machine,

page20).

Figure 2-1: Recommended W_Disable# connection (open

drain circuit)

Power signals

Themodulemustbeconnectedtoa3.3Vpowersupply(as

describedinPCIExpressMiniCardElectromechanicalSpecifi‐

cationRevision1.1).

TheMC87xxhasmorepowerpinsthantheMC57xxdueto

higherpeakcurrentrequirementsforGSMdevices.

Fordetailedpinoutandvoltage/currentrequirementsofthese

modules,seetheProductSpecificationDocumentforyour

MiniCard.

Control

W_Disable#

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Note: The Product Specification Document’s pin connection table

describes the internal structure of the module. For example, a Mini

Card standard-compliant host platform provides +3.3Vaux on pin 24,

but this pin is not connected internally on the MC8775V. Thus, the pin

is flagged as ‘No connect’.

Electrostatic discharge (ESD)

Youareresponsibleforensuringthatthehosthasadequate

ESDprotectionondigitalcircuitsandantennaports:

•(Operational)RFport(antennalaunchandRFconnector):

IEC‐61000‐4‐2—Level(ElectrostaticDischargeImmunityTest)

•(Non‐operational)Hostconnectorinterface:

JESD22‐A114‐B+/‐1kVHumanBodyModeland

JESD22‐C101+/‐125VChargedDeviceModel

•MC5728/MC5728Vonly:(Non‐operational)Hostconnector

interface:

JESD22‐A114‐B+/‐200VHumanBodyModeland

JESD22‐C101+/‐250VChargedDeviceModel

MC5728/MC5728VhasplaceholdersforadditionalESD

devices,forcaseswherethedevicemust,percustomer

requirements,meetthehigherHumanBodyModel(+/‐1kV)

ESDrating.

Specificrecommendationsareprovidedwhereneededinthis

guide,however,thelevelofprotectionrequireddependson

yourapplication.

Note: ESD protection is highly recommended for the USIM connector

at the point where the contacts are exposed, and for any other signals

from the host interface that would be subjected to ESD by the user of

the product.

Module power states

Note: The module unit defaults

to the Normal state when

VCC3.3 is first applied in the

absence of W_Disable# control.

Themodulehasfourpowerstates:

•Disconnected

Nopowertothemodule.

•Off

Powertothemodule,butthemoduleispoweredoff.

•Normal

Themoduleisactive.Severalmodesarepossible(Receive,

Transmit,Sleep,Shutdown).

Power Interface

Rev 1.9.1 Feb.09 Proprietary and Confidential 19

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•Low power (“airplane mode”)

Themoduleisactive,butRFisdisabled.

Statemachinesareimplementedinthemoduletomonitorthe

powersupplyandoperatingtemperature.

Disconnected state

Note: The difference between

the Disconnected and Off states

is that, in the Off state, the

module is still connected to the

power source and draws minimal

current.

Thisstateoccurswhenthereisnopowertothemodule—the

hostpowersourceisdisconnectedfromthemoduleandall

voltagesassociatedwiththemoduleareat0V.

Whetherthehostdeviceisalsopoweredoffdependsonthe

powerraildesign.Iftheconnectionbetweenthepowerrail

andthemoduleiscontrolledbythehost,thehostcanstay

poweredonandcutthepowertoputthemodemintothe

disconnectedstate.Ifthepowerrailissharedbetweenthehost

deviceandthemodule,thehostispoweredoffwhenthe

moduleispoweredoff.

Off state

Note: The module enters the Off

state if W_Disable# is driven low

and power (Vcc) is applied to the

module, or if the module is in a

powered state and W_Disable#

is driven low for a module-

dependent minimum period. See

State change: Power off / on on

page 23 for details.

Inthisstate,thehostispoweredupandthemoduleis

powereddown(butstillconnectedtothepowersource).

Thehostkeepsthemodulepoweredoffbydrivingthe

W_Disable#signallow.Inthisstate,themoduledrawsminimal

current.

Normal state

Note: This is the default state

when VCC3.3 is first applied in

the absence of W_Disable#

control.

Thisistheactivestateofthemodule.Inthisstate:

•Themoduleisfullypowered.

•Themoduleiscapableofplacing/receivingcallsorestab‐

lishingdataconnectionsonthewirelessnetwork.

•TheUSBinterfaceisfullyactive.

Low power mode

Inthisstate,RF(bothRxandTx)isdisabledinthemodule,but

theUSBinterfaceisstillactive.Thislowpowermode

(ʺairplanemodeʺ)iscontrolledbysoftwarecommands

throughthehostinterface.

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20 Proprietary and Confidential 2130114

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

Forinstructionsonusingthecommands,refertoATCommand

SetforUserEquipment(UE)(Release6)(+CFUN=0command),

CDMACnSReference(Document2130754)

(CNS_RADIO_POWER[0x1075]command),orMC87XX

ModemCnSReference(Document2130602)(DisableModem

command).

Voltage monitoring state machine

ThemodulehasastatemachinetomonitortheVCC3.3

(3.0V‐3.6V)supply(Figure2‐2).

Figure 2-2: Voltage monitoring state machine

Table 2-1: Voltage trigger levels

Condition Voltage (V)

MC57xx MC8775/75V

MC8780/81 MC8785V

MC8790/90V

MC8791V/92V

VOLT_HI_CRIT 3.6 3.6 3.6

VOLT_HI_NORM 3.5 3.5 3.5

VOLT_LO_NORM 3.1 3.1 3.1

VOLT_LO_WARN 3.0 3.0 3.05

VOLT_LO_CRIT 2.9 2.9 3.00

Normal

Low Supply Voltage

Critical

(Low power mode)

Low Supply Voltage

Warning

High Supply Voltage

Critical

(Low power mode)

current_vcc > VOLT_LO_NORM

current_vcc < VOLT_LO_WARN

current_vcc > VOLT_LO_NORM

Host asserts

W_Disable#

Host asserts

W_Disable#

current_vcc

< VOLT_LO_CRIT

current_vcc > VOLT_HI_CRIT

current_vcc < VOLT_HI_NORM

Power off.

Handled by

Power State

state machine.

Power Interface

Rev 1.9.1 Feb.09 Proprietary and Confidential 21

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

State change: Normal mode to Low Power mode

Thisstatechangecausesthemoduletoswitchtolowpower

mode,suspendingRFactivity.Itoccurswhenthemodule’s

supplyvoltageexceedsthelimitsdescribedinTable2‐1

(VOLT_HI_CRITandVOLT_LO_CRIT).

Whenthisstatechangeoccurs,theCnSnotification

CNS_RADIO_POWERisissued,ifenabled.Foradetailed

descriptionofthisnotification,seeCDMACnSReference

(Document2130754)orMC87XXModemCnSReference

(Document2130602).

State change: Low Power mode to Normal mode

Thisstatechangecausesthemoduletoswitchtonormalmode,

resumingRFactivity.Itoccurswhenthemodule’ssupply

voltagereturnsfromcriticaltonormallimitsasdescribedin

Table2‐1(VOLT_HI_NORMandVOLT_LO_NORM).

Whenthisstatechangeoccurs,theCnSnotification

CNS_RADIO_POWERisissued,ifenabled.Foradetailed

descriptionofthisnotification,seeCDMACnSReference

(Document2130754)orMC87XXModemCnSReference

(Document2130602).

Note: The module is still

connected to the power source

in this state, drawing minimal

power.

State change: Power off / on

Themodulebeginsashutdownsequenceandpowersoffifit

hasbeeninapowered‐onstateformorethan10.5secondsand

thehostdevicedrivestheW_Disable#signallowfor:

•≥50ms(MC8775/MC8775V)

•≥500ms(MC5725/MC5725V/MC5727/MC5727V/

MC5728/MC5728V/MC8780/MC8781/MC8785V/

MC8790/MC8790V/MC8791V/MC8792V)

Note: The module ignores changes in the W_Disable# line for the first

10.5 seconds after it enters a powered-on state.

Themodulepowersonwhenthehostdeviceleavesthe

W_Disable#signalfloating(highimpedance)asshownin

Figure2‐1onpage17.

Figure2‐2onpage20showsthetransitionfrom‘LowSupply

VoltageCritical’or‘HighSupplyVoltageCritical’to‘Power

off’:

1. Themoduleenterslowpowermodebecauseitdetectsthat

thesupplyvoltageleveliscriticallylow(VOLT_LO_CRIT)

orcriticallyhigh(VOLT_HI_CRIT).

2. ThemodulesendsaCnSnotification(ReturnRadio

Voltage—0x0009)tothehostindicatingthatitisnowin

lowpowermode.

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

22 Proprietary and Confidential 2130114

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

3. Thehosthastheoption,atthispoint,ofdrivingW_Disable#

low(forcingthemoduletopoweroff)topreventdamage

totheunit.

Temperature monitoring state machine

Themodulehasastatemachinetomonitorthemodule’s

temperature(Figure2‐3).

Figure 2-3: Temperature monitoring state machine

Table 2-2: Temperature trigger levels1

Condition MC57xx

Temp (°C) MC87xx

Temp (°C)

TEMP_LO_CRIT -30 -25

TEMP_NORM_LO -20 -15

TEMP_HI_NORM 85 85

TEMP_HI_WARN 95 95

TEMP_HI_CRIT 108 108

1Module-reported temperatures at the printed circuit board.

Temperature decreases from 10°C–18°C between the PCB

and the module shield, and a further 10°C–18°C between the

shield and host environment (ambient), depending on the effi-

ciency of heat-dissipation in the host device.

Normal

mode

High Temperature

Critical

(Low power mode)

High Temperature

Warning

Low Temperature

Critical

(Low power mode)

current_temp <= TEMP_HI_NORM

current_temp > TEMP_HI_WARN

current_temp < TEMP_HI_NORM

Host asserts

W_Disable#

Host asserts

W_Disable#

current_temp

> TEMP_HI_CRIT

current_temp < TEMP_LO_CRIT

current_temp > TEMP_NORM_LO

Power off.

Handled by

Power State

state machine.

Power Interface

Rev 1.9.1 Feb.09 Proprietary and Confidential 23

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

State change: Normal mode to Low Power mode

Thisstatechangecausesthemoduletoswitchtolowpower

mode,suspendingRFactivity.Itoccurswhenthemodule

temperatureexceedsthelimitsdescribedinTable2‐2

(TEMP_HI_CRITandTEMP_LO_CRIT).

Whenthisstatechangeoccurs,theCnSnotification

CNS_RADIO_POWERisissued,ifenabled.Foradetailed

descriptionofthisnotification,seeCDMACnSReference

(Document2130754)orMC87XXModemCnSReference

(Document2130602).Aswell,theMC57xxissuestheCnSnotifi‐

cationModemTooHot[0x4500]ifithastodropacallwhen

shiftingtolowpowermode.

State change: Low Power mode to Normal mode

Thisstatechangecausesthemoduletoswitchtonormalmode,

resumingRFactivity.Itoccurswhenthemoduletemperature

returnsfromcriticaltonormallimitsasdescribedinTable2‐2

(TEMP_HI_NORMandTEMP_LO_NORM).

Whenthisstatechangeoccurs,theCnSnotification

CNS_RADIO_POWERisissued,ifenabled.Foradetailed

descriptionofthisnotification,seeCDMACnSReference

(Document2130754)orMC87XXModemCnSReference

(Document2130602).

State change: Power off / on

Themodulebeginsashutdownsequenceandpowersoffifit

hasbeeninapowered‐onstateformorethan10.5secondsand

thehostdevicedrivestheW_Disable#signallowfor:

•≥50ms(MC8775/MC8775V)

•≥500ms(MC5725/MC5725V/MC5727/MC5727V/

MC5728/MC5728V/MC8780/MC8781/MC8785V/

MC8790/MC8790V/MC8791V/MC8792V)

Note: The module ignores changes in the W_Disable# line for the first

10.5 seconds after it enters a powered-on state.

Themodulepowersonwhenthehostdeviceleavesthe

W_Disable#signalfloating(highimpedance)asshownin

Figure2‐1onpage17.

Figure2‐3showsthetransitionfrom‘LowTemperature

Critical’or‘HighTemperatureCritical’to‘Poweroff’.

1. Themoduleenterslowpowermodebecauseitdetectsthat

theoperatingtemperatureiscriticallylow

(TEMP_LO_CRIT)orcriticallyhigh(TEMP_HI_CRIT).

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

24 Proprietary and Confidential 2130114

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

2. ThemodulesendsaCnSnotification(ReturnRadio

Temperature—0x0008)tothehostindicatingthatitisnow

inlowpowermode.

3. Thehosthastheoption,atthispoint,ofdrivingW_Disable#

low(forcingthemoduletopoweroff)topreventdamage

totheunit.

Note: (MC57xx only) If the ambient temperature of the module

exceeds 60 °C, the RF level is automatically lowered for max power

transmission.

Inrush currents

Twopowereventscancauselargeinrushcurrentsfromthe

hostsupplytothemoduleonthepowerpins:

•Applicationofthehost’spowersupply

•HostleavesW_Disable#floating(highimpedance)topower

upthemodule(asshowninFigure2‐1onpage17).

Figure2‐4andFigure2‐5showtheinrushmodelsforthe

MC57xxandMC87xx.Applicationofthehost’spowersupply

typicallyoccurswhentheswitchisopen;W_Disable#isleft

floating(highimpedance)whentheswitchisclosed.

Figure 2-4: Inrush model - MC57xx

REG

PWR (1,2,3,4,5)

ON/OFF

(18)

Current

+3.3VDC

Power source

250m

LDO pass

element

1 ohm typ

ESR

80m

8.5m 2.8m 1.7m 2.2m

1uF

ESR

20m

ESR

20m

38m

Cin

2x 1uF

10m

32m

Current Probe MC57xx

Regulator input capacitor

Regulator

output

capacitor

ESR +

trace Z

60m

RF Cap

4.7uF

EM board decoupling cap

Recommended host power rail

capacitance = 470 µF - 1000 µF

Cin

2x 1uF

ESR +

trace Z

40m

EM board decoupling cap

15m

Power Interface

Rev 1.9.1 Feb.09 Proprietary and Confidential 25

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

Figure 2-5: Inrush model - MC87xx

Inrush current via application of host power supply

Thiseventoccurswhenthehost’ssupplyisenabled,charging

theinputcapacitorsontheMiniCardpowerrail.Theswitch

showninFigure2‐4andFigure2‐5isopen(typically)when

thiseventoccurs.

Note: In some circumstances,

depending on temperature and

the components in use, two or

more regulators may switch on

at the same time. The host

power system must be designed

to handle this possibility.

Tolimittheinrushcurrentandstabilizethesupplyofpowerto

themodule,sufficientcapacitancemustbeaddedtothehost

powerrail.Therecommendedcapacitancerangeis

470μF‐1000μF.

Peakcurrent(IPEAK)iscalculatedusing:

Inrush current via floating W_Disable#

Thesecondeventtypeoccurswhenthehostleavesthe

W_Disable#signalfloating(highimpedance)topowerupthe

module.TheswitchshowninFigure2‐4andFigure2‐5is

closedwhenthiseventoccurs.Thisenablesthepower

managementsystemofthemodule,chargingseveralinternal

regulatoroutputcapacitors.

WhenW_Disable#isleftfloating(highimpedance),thepeak

currentislessthan500mA(witha30μsrisetime).

ON/OFF

50m

2 ohm

30m

0.1m

10uF

ESR

50m

4.5m

47uF

MC87xx

IPEAK = VCC / RSERIES

RSERIES = (impedance from power source (+ive) through to

the Regulator output capacitor)

+ (impedance from power source (-ive) through to

GND pins of the EM regulator)

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

26 Proprietary and Confidential 2130114

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

Timing requirements

Power ramp-up

Duringthefirst0.5seconds,astheinternalvoltageregulators

areactivatedinsequence,severalcurrenttransientsofupto

500mAwitha30μsrisetimemayoccur.

Thesupplyvoltagemustremainwithinspecifiedtolerances

whilethisisoccurring.

Power-up timing

TheunitisreadytoenumeratewithaUSBhostwithina

maximumof5.1seconds(dependingonmoduletype)after

power‐up.(Mostmodulesenumeratewithin4seconds.)

Note: The actual startup time may vary between the different module

types (for example, MC5725 versus MC8775).

Figure 2-6: Power-up timing diagram

Note: Startup time is the time after power-up when the modem is

ready to begin the enumeration sequence.

Transmit power wave form

(GSM)

AsshowninFigure2‐7,atmaximumGSMtransmitpower,the

inputcurrentcanremainat2.4Aforupto25%ofeach4.6ms

GSMcycle(1.15ms).ForClass12operation,thepeakcould

remainfor2.3ms(fourtimeslots).The2.4Acurrentdrawis

for50ohmsystems(1:1VSWR).Forworst‐caseantenna

designs,suchas3.5:1VSWR(asstatedinTable2‐5),this

currentdrawcouldincreasefrom2.4Ato2.75A,asshownin

Enumeration

3.3V

W_Disable#

USB D+

Startup time

Power Interface

Rev 1.9.1 Feb.09 Proprietary and Confidential 27

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

thediagram.Beyondthe3.5:1VSWRasrecommendedtobe

worst‐caseinTableA‐5,thecurrentdrawcouldincrease

beyond2.75Ato3.5A.

AtmaximumGSMtransmitpower,theinputcurrentcan

remainat2.4Aforupto25%ofeach4.6msGSMcycle

(1.15ms)afterinitiallyreachingapeakof2.75Aaverageover

100μsandwithaninstantaneouspeakcurrentof3.5A.

Figure 2-7: GSM transmit power wave form

Current consumption

Currentconsumptiondependsonthemodule’soperating

modeatanygiventime.

Thissectiondescribes:

•Currentconsumptionforbothmoduletypes(MC57xxand

MC87xx)

•Operatingmodes

Current consumption overview

Note: Values in this guide are

taken from the appropriate

product specification documents

(PSDs) (listed in

documents

, page 13) — in the

case of a discrepancy between

this document and the relevant

PSD, use the value listed in the

PSD.

Electricalrequirementsandcurrentspecificationsarelistedin

Table2‐3(MC57xx),Table2‐4(MC8775/MC8775V),Table2‐5

(MC8780/MC8781),Table2‐6(MC8785V),andTable2‐7

(MC8790/MC8790V/MC8791V/MC8792V).Thesespecifica‐

tionsidentifyminimum,typical,andmaximumcurrentdrain

foreachoperatingmode(whileintheNormalstate):

•Transmit

•Receive

•Sleep

•Deepsleep

•Shutdown

Thecurrentconsumptionvaluesinthesetablesweremeasured

usingasupplyvoltageof3.3V. Thedevice’ssupplyvoltageis

3.0–3.6Vwithatypicalvoltageof3.3V.

2.4

0.15

Current

(A)

2.75A peak

2.75

25 µs

1.15 ms 4.6 ms

3.5:1 VSWR = 2.75A

1:1 VSWR = 2.40A

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

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In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

Note: For sleep modes, the values shown are for the actual sleep

state. The module wakes at intervals to control timing and check for

traffic — at these moments the current consumption is higher

Table 2-3: Current specifications (MC57xx)

Current consumption

(mA)

Condition Min Typical Max

CDMA Transmitting

CDMA Transmitting (MC5728/MC5728V)

Current depends on the radio band in use and the

network’s control of the module’s output power.

The ‘Typical’ value is based on:

250

TBD

300

TBD

950

TBD

CDMA Receiving

CDMA Receiving (MC5728/MC5728V)

TBD

100

TBD

120

TBD

CDMA Sleep (default slot cycle = 2)

CDMA Sleep, MC5728/MC5728V (default slot

cycle = 2)

The module supports slotted mode operation and Quick

Paging Channel (both enable reduced sleep current).

The values shown are the lowest power consumption

during the sleep cycle.

The default Slot Cycle Index (SCI) for slotted mode

operation is determined by the PRI setting (usually 1).

1.4

TBD

1.7

TBD

1.75

TBD

Deep Sleep Average

Deep Sleep Average (MC5728/MC5728V)

0.5

TBD

0.7

TBD

1.5

TBD

Shutdown

Shutdown (MC5728/MC5728V)

0.25

TBD

0.30

TBD

0.35

TBD

. 

•40% full rate, and

•60% 1/8th rate over -35 to +23.5 dBm.

Table 2-4: Current specifications (MC8775 / MC8775V)

Description Band Typ Max Units Notes / Configuration

Averaged standby DC current consumption

With Sleep mode activated

(assumes USB bus is fully suspended during measurements)

HSDPA / WCDMA Bands I, II, V 2.9 4mA DRX cycle = 8 (2.56 s)

GSM / GPRS / EDGE All 2.8 4mA MFRM = 5 (1.175 s)

Power Interface

Rev 1.9.1 Feb.09 Proprietary and Confidential 29

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

With Sleep mode deactivated

(assumes USB bus is fully suspended during measurements)

HSDPA / WCDMA Bands I, II, V 73 80 mA DRX cycle = 8 (2.56 s)

GSM / GPRS / EDGE All 46 55 mA MFRM = 5 (1.175 s)

Low Power Mode (LPM) / Offline Mode

RF disabled, but module is operational 2.5 4mA This state is entered when

Watcher® (or other

application) shuts down /

turns off the radio.

Averaged WCDMA / HSDPA DC current consumption

WCDMA talk current

(AMR 12.2 kbps

vocoder)

Bands I, II, V 300 -mA 0 dBm Tx power

480 -mA +15 dBm Tx power

650 -mA +21 dBm Tx power

WCDMA data current 330 -mA 64 kbps UL / 384 kbps DL,

+0 dBm Tx power

WCDMA searching

channels 180 mA 320 mA peak

HSDPA current 340 -mA 0 dBm Tx power

Maximum peak talk

current -1.2 AMax RF output power, full

rate, full operating

temperature range

Averaged GSM / EDGE DC current consumption

GSM Talk current

(Full rate GSM

vocoder, averaged

over multiple Tx

frames)

Quad GSM 300 -mA +5 dBm Tx power

210 -mA +13 dBm Tx power

300 -mA +29 dBm Tx power

GSM850 &

GSM900 360 -mA +33 dBm Tx power

GPRS current

(+13 dBm Tx power,

GPRS CS2, averaged

over multiple Tx

frames)

Quad GSM 180 -mA 1 Rx / 1 Tx slot

180 -mA 2 Rx / 1 Tx slot

240 -mA 4 Rx / 2 Tx slot

GSM / GPRS

searching channels Quad GSM,

GSM850, GSM900 163 mA 489 mA peak

Table 2-4: Current specifications (MC8775 / MC8775V) (Continued)

Description Band Typ Max Units Notes / Configuration

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

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In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

EDGE current

(14 dBm Tx Power,

averaged over

multiple Tx frames)

Quad GSM 180 -mA 1 Rx / 1 Tx slot

180 -mA 2 Rx / 1 Tx slot

240 -mA 4 Rx / 2 Tx slot

Maximum Peak Talk

current Quad GSM 2.3 2.75 AMax RF output power, Tx

pulse current, full operating

temperature range

Miscellaneous DC current consumption

Module OFF leakage

current All 310 600 μAFull operating temperature

range

USB transmit current All -10 mA Full speed USB connection,

CL = 50 pF on D+ and D-

signals

Table 2-5: Current specifications (MC8780 / MC8781)

Description Band Typ Max Units Notes / Configuration

Averaged standby DC current consumption

With Sleep mode activated

(assumes USB bus is fully suspended during measurements)

HSDPA / WCDMA UMTS bands 3 4 mA DRX cycle = 8 (2.56 s)

GSM / GPRS / EDGE GSM bands 3 4 mA MFRM = 5 (1.175 s)

With Sleep mode deactivated

(assumes USB bus is fully suspended during measurements)

HSDPA / WCDMA UMTS bands 46 50 mA DRX cycle = 8 (2.56 s)

GSM / GPRS / EDGE GSM bands 50 55 mA MFRM = 5 (1.175 s)

Low Power Mode (LPM) / Offline Mode

RF disabled, but module is operational 3 4 mA This state is entered when

Watcher (or other

application) shuts down /

turns off the radio.

Table 2-4: Current specifications (MC8775 / MC8775V) (Continued)

Description Band Typ Max Units Notes / Configuration

Power Interface

Rev 1.9.1 Feb.09 Proprietary and Confidential 31

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

(Maximum power) Averaged WCDMA / HSDPA data current consumption (includes USB bus

current)

WCDMA UMTS bands 800 mA 384 kbps at 20 dBm Tx

powera

300 mA 0 dBm Tx power

HSUPA 850 mA 2 Mbps at 20 dBm Tx power

400 mA 0 dBm Tx power

HSDPA

(1.8 Mbps / 3.6 Mbps /

7.2 Mbps)

850 mA All speeds at 20 dBm Tx

powerb

450 mA 0 dBm Tx power

(Maximum power) Averaged GSM / EDGE data current consumption (includes USB bus current)

GSM / GPRS GSM bands 560 mA Max PCL for each bandc

230 mA 10 dBm Tx

EDGE GSM bands 520 mA Class 12c

Peak current

(averaged over

100 μs)

GSM bands 2.75 AWorst case on 850 / 900

band.

a. Highest current is on Band II (PCS1900)

b. Approximate current difference between speeds = 20 mA

Example: Current(7.2 Mbps) = Current(3.6 Mbps) + 20 mA = Current(1.8 Mbps) + 40 mA

c. Highest current is on 850 / 900 band Class 10 (Class 12 implements power backoff). Current on 1800 /

900 bands is typically 100–200 mA less.

Table 2-6: Current specifications (MC8785V)

Description Band Typ Max Units Notes / Configuration

Averaged standby DC current consumption

With Sleep mode activated

(assumes USB bus is fully suspended during measurements)

HSDPA / WCDMA UMTS bands 4 5 mA DRX cycle = 8 (2.56 s)

GSM / GPRS / EDGE GSM bands 4 5 mA MFRM = 5 (1.175 s)

With Sleep mode deactivated

(assumes USB bus is fully suspended during measurements)

HSDPA / WCDMA UMTS bands 96 100 mA DRX cycle = 8 (2.56 s)

GSM / GPRS / EDGE GSM bands 96 100 mA MFRM = 5 (1.175 s)

Table 2-5: Current specifications (MC8780 / MC8781) (Continued)

Description Band Typ Max Units Notes / Configuration

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

32 Proprietary and Confidential 2130114

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

Low Power Mode (LPM) / Offline Mode

RF disabled, but module is operational 4 5 mA This state is entered when

Watcher (or other

application) shuts down /

turns off the radio.

Averaged Call Mode WCDMA / HSDPA data DC power consumption

WCDMA UMTS bands 700 mA 384 kbps at 20 dBm Tx

powera

300 mA 0 dBm Tx power

HSUPA 750 mA 2 Mbps at 20 dBm Tx power

340 mA 0 dBm Tx power

HSDPA

(1.8 Mbps / 3.6 Mbps /

7.2 Mbps)

750 mA All speeds at 20 dBm Tx

powerb

340 mA 0 dBm Tx power

Peak current

(averaged over

100 μs)

780 mA

Averaged Call Mode GSM / EDGE data DC power consumption (with 4 time slots)

GSM / GPRS GSM bands 650 mA Max PCL for each bandc

220 mA 10 dBm Tx

EDGE GSM bands 670 mA Class 12c

Peak current

(averaged over

100 μs)

GSM bands 2.5 AWorst case on 850 / 900

band.

a. Highest current is on Band II (PCS1900)

b. Approximate current difference between speeds = 30 mA

c. Highest current is on 850 / 900 band Class 10 (Class 12 implements power backoff). Current on 1800 /

900 bands is typically 100–200 mA less.

Table 2-7: Current specifications (MC8790 / MC8790V / MC8791V / MC8792V)

Description Band Typ Max Units Notes / Configuration

Averaged standby DC current consumption

With Sleep mode activated

(assumes USB bus is fully suspended during measurements)

HSDPA / WCDMA UMTS bands 4 5 mA DRX cycle = 8 (2.56 s)

GSM / GPRS / EDGE GSM bands 4 5 mA MFRM = 5 (1.175 s)

Table 2-6: Current specifications (MC8785V) (Continued)

Description Band Typ Max Units Notes / Configuration

Power Interface

Rev 1.9.1 Feb.09 Proprietary and Confidential 33

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

With Sleep mode deactivated

(assumes USB bus is fully suspended during measurements)

HSDPA / WCDMA UMTS bands 40 50 mA DRX cycle = 8 (2.56 s)

GSM / GPRS / EDGE GSM bands 40 50 mA MFRM = 5 (1.175 s)

Low Power Mode (LPM) / Offline Mode

RF disabled, but module is operational 4 5 mA This state is entered when

Watcher (or other application)

shuts down / turns off the

radio.

Averaged Call Mode WCDMA / HSDPA data DC power consumption

WCDMA UMTS bands 700 mA 384 kbps at 20 dBm Tx

powera

300 mA 0 dBm Tx power

HSUPA 800 mA 2 Mbps at 20 dBm Tx power

350 mA 0 dBm Tx power

HSDPA

(1.8 Mbps / 3.6 Mbps /

7.2 Mbps)

800 mA All speeds at 20 dBm Tx

powerb

370 mA 0 dBm Tx power

Peak current (averaged

over 100 μs) 720 mA

Averaged Call Mode GSM / EDGE data DC power consumption (with 4 time slots)

GSM / GPRS GSM bands 650 mA Max PCL for each bandc

300 mA 10 dBm Tx

EDGE GSM bands 620 mA Class 12c

Peak current (averaged

over 100 μs) GSM bands 2.6 AWorst case on 850 / 900

band.

a. Highest current is on Band II (PCS1900)

b. Approximate current difference between speeds = 30 mA

c. Highest current is on 850 / 900 band Class 10 (Class 12 implements power backoff). Current on 1800 / 900

bands is typically 100–200 mA less.

Table 2-7: Current specifications (MC8790 / MC8790V / MC8791V / MC8792V)

Description Band Typ Max Units Notes / Configuration

Table 2-8: Miscellaneous DC power consumption (MC8780 / MC8781 / MC8785V /

MC8790 / MC8790V / MC8791V / MC8792V)

Signal Description Band Typ Max Units Notes / Configuration

VCC Module OFF

leakage current All bands 400 600 μAFull operating temperature

range

USB transmit

current All bands 10 10 mA Full speed USB connection,

CL = 50 pF on D+ and D-

signals

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Modes

Transmit and Receive modes

Currentconsumptionintransmitorreceivemode(inacallor

dataconnection)isaffectedbyseveralfactors,suchas:

•Radiobandbeingused

•Transmitpower

•Receivegainsettings

•Datarate

•NumberofactiveTransmittimeslots(fortransmitmode)

Sleep mode

Sleepmodeisthenormalstateofthemodulebetweencallsor

dataconnections.Inthisreducedpowermode,themodule

cyclesbetweenwake(pollingthenetwork)andsleep,atan

intervaldeterminedbythenetworkprovider.

Deep sleep

Deepsleepmodeisareducedpower,out‐of‐network‐coverage

mode,thatthemoduleenterswhenitcannotacquirenetwork

serviceafterseveralminutes.

Themodulethenexitsdeepsleepperiodicallytotrytoacquire

service,andifsuccessful,attemptstoregister.

Shutdown mode

Whileinshutdownmode,themoduleispoweredoff,butstill

drawsaminimalcurrentfromthehostpowersupply.

SED (Smart Error Detection)

(MC87xxonly)

TheMC87xxmodemusesaformofSEDtotrackrecurrent

prematuremodemresets.Insuchcases,themodemautomati‐

callyforcesapauseinboot‐and‐holdmodeatpower‐onto

acceptanexpectedfirmwaredownloadtoresolvetheproblem.

Power Interface

Rev 1.9.1 Feb.09 Proprietary and Confidential 35

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

TheSEDprocessisimplementedasfollows:

•Themodemtracksconsecutiveresetsofthemodemwithin

30secondsofpower‐on.

•Afterathirdconsecutiveresetoccurs,themodemautomati‐

callywaitsupto30secondsinboot‐and‐holdmode,

waitingforafirmwaredownloadtoresolvethepower‐cycle

problem.

•After30seconds(ifnofirmwaredownloadbegins),the

modemcontinuestopower‐on.

•Ifthemodemresetsagainwithin30secondsofpower‐on,

themodemagainwaitsinboot‐and‐holdmode.

Thisprocesscontinuesuntiltheunexpectedpower‐cycleissue

isresolved—eitherafirmwaredownloadoccurs,orthe

modemdoesn’tresetspontaneouslywithin30secondsof

power‐on.

Usage models

Usagemodelscanbeusedtocalculateexpectedcurrent

consumption.AsampleusagemodelisprovidedinTable2‐9,

basedonthevaluesinTable2‐3foraCDMAmodule.

Thisexamplemodelappliestoabattery‐operateddevice.In

practice,becausethemoduleisisolatedfromthebattery(the

hostdevicemanagesthepowersource),themAhratings

dependonthedevice’ssupplyefficiency.

Themoduleautomaticallyentersslottedsleepmodewhen

thereisnotransmissionorreceptionoccurring(SCI=2).

Transmitpowerisassumedtobe+3dBm.

Table 2-9: Power consumption of a sample application

Used by a field worker

(data only) Used for remote data

logging

Upload (module

Tx) 1000 kB/day 40 kB/h

Download

(module Rx) 500 kB/day 100 kB/day

Coverage / data

rate 1X / 80 kbps IS-95 / 14.4 kbps

Hours of

operation 8/day (off 16 hrs/day) 24/day

Total power

consumed over

24 hours

60 mAh 200 mAh

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

36 Proprietary and Confidential 2130114

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Rev 1.9.1 Feb.09 Proprietary and Confidential 37

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

3: RF Integration

ThischapterprovidesinformationrelatedtotheRF(Radio

Frequency)integrationoftheMC57xxandMC87xxmodules

withhostdevices.Thefrequenciesofoperationandperfor‐

mancespecificationsvarydependingonthemodulemodel

used.RFperformanceparametersfortypicalmodulesare

listedinTable3‐1andTable3‐2.

Note: Values in this guide are taken from the appropriate product

specification documents (PSDs) (listed in

Related documents

page 13) — in the case of a discrepancy between this document and

the relevant PSD, use the value listed in the PSD.

Table 3-1: MC57xx — Typical RF parameters

Band Tx Band

(MHz) Tx Power

(dBm) Rx Band

(MHz) Rx Sensitivity

(dBm)

PCS 1851–1910 +23 to +25 1930–1990 < -106

Cellular 824–849 +23 to +25 869–894 < -106

GPS 1575.42 SA Off: -148

SA On: -152

Table 3-2: MC87xx— RF parameters

Product Band Frequencies

(MHz) Conducted Rx

Sensitivity (dBm) GPS

Conducted

Sensitivity

Conducted

Transmit

Power

Typical Maximum (dBm) (dBm)

MC8775

MC8775V

MC8780

MC8781

MC8785V

MC8790

MC8790V

MC8791V

MC8792V

GSM 850

(2%) CS Tx: 824–849

Rx: 869-894 -107.5 -106 +32 ± 1 (GMSK)

+27 ± 1 (8PSK)

EGSM 900

(2%) CS Tx: 880-915

Rx: 925-960 -107.5 -106 +32 ± 1 (GMSK)

+27 ± 1 (8PSK)

DCS 1800

(2%) CS Tx: 1710-1785

Rx: 1805-1880 -106.5 -105 +29 ± 1 (GMSK)

+26 ± 1 (8PSK)

PCS 1900

(2%) CS Tx: 1850-1910

Rx: 1930-1990 -106.5 -105 +29 ± 1 (GMSK)

+26 ± 1 (8PSK)

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MC8775

MC8775V

MC8780

MC8781

MC8785V

MC8790

MC8790V

MC8791V

MC8792V

Band I

UMTS 2100

(0.1%) 12.2 kbps

Tx: 1920–1980

Rx: 2110–2170 -110.5 -109 +23 ± 1

MC8775

MC8775V

MC8780

MC8781

MC8785V

MC8790

MC8790V

MC8792V

Band II

UMTS 1900

(0.1%) 12.2 kbps

Tx: 1850–1910

Rx: 1930–1990 -110.5 -109 +23 ± 1

MC8775

MC8775V

MC8780

MC8781

MC8785V

MC8790

MC8790V

Band V

UMTS 850

(0.1%) 12.2 kbps

(Band VI is

included as a

subset of

Band V)

Tx: 824–849

Rx: 869–894 -111.5 -110 +23 ± 1

MC8792V Band VIII

UMTS 900

(0.1%) 12.2 kbps

Tx: 880–915

Rx: 925–960 -110.5 -109 +23 ± 1

MC8775V

MC8780

MC8781

MC8785V

MC8790

MC8790V

MC8791V

MC8792V

GPS 1575.42 -154

Table 3-2: MC87xx— RF parameters (Continued)

Product Band Frequencies

(MHz) Conducted Rx

Sensitivity (dBm) GPS

Conducted

Sensitivity

Conducted

Transmit

Power

Typical Maximum (dBm) (dBm)

RF Integration

Rev 1.9.1 Feb.09 Proprietary and Confidential 39

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

RF connection

Whenattachinganantennatothemodule:

Note: To disconnect the

antenna, make sure you use the

Hirose U.FL connector removal

tool (P/N UFL-LP-N-2(01)) to

prevent damage to the module

or coaxial cable assembly.

•UseaHiroseU.FLconnector(model

U.FL#CL331‐0471‐0‐10)toattachanantennatoa

connectionpointonthemodule,asshowninFigure3‐1(the

mainRFconnectoronthetopside;thediversityRForGPS

connectoronthebottomside).

•Matchcoaxialconnectionsbetweenthemoduleandthe

antennato50Ω.

•MinimizeRFcablelossestotheantenna;therecommended

maximumcablelossforantennacablingis0.5dB.

Figure 3-1: Antenna connection points and mounting holes

Ground connection

Whenconnectingthemoduletosystemground:

•Preventnoiseleakagebyestablishingaverygoodground

connectiontothemodulethroughthehostconnector.

•Connecttosystemgroundusingthetwomountingholesat

thetopofthemodule(asshowninFigure3‐1).

•MinimizegroundnoiseleakageintotheRF.

Dependingonthehostboarddesign,noisecouldpotentially

becoupledtothemodulefromthehostboard.Thisis

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mainlyanissueforhostdesignsthathavesignalstraveling

alongthelengthofthemodule,orcircuitryoperatingat

bothendsofthemoduleinterconnects.

Shielding

ThemoduleisfullyshieldedtoprotectagainstEMIandto

ensurecompliancewithFCCPart15‐“RadioFrequency

Devices”(orequivalentregulationsinotherjurisdictions).

Note: The module shields must NOT be removed.

Antenna and cabling

Note: Values in this guide are

taken from the appropriate

product specification documents

(PSDs) (listed in

documents

, page 13) — in the

case of a discrepancy between

this document and the relevant

PSD, use the value listed in the

PSD.

Whenselectingtheantennaandcable,itiscriticaltoRFperfor‐

mancetomatchantennagainandcableloss.

Choosing the correct antenna and cabling

Considerthefollowingpointsforpropermatchingofantennas

andcabling:

•Theantenna(andassociatedcircuitry)shouldhavea

nominalimpedanceof50Ωwithareturnloss≤ 10dB

acrosseachfrequencybandofoperation.

•Thesystemgainvalueaffectsbothradiatedpowerand

regulatory(FCC,IC,CE,etc.)testresults.

Developing custom antennas

Considerthefollowingpointswhendevelopingcustom‐

designedantennas:

•AskilledRFengineershoulddothedevelopmenttoensure

thattheRFperformanceismaintained.

•Identifythebandsthatneedtobesupported,particularly

whenboththeMC57xxandMC87xxwillbeinstalledinthe

sameplatform.Inthiscase,youmaywanttodevelop

separateantennasformaximumperformance.

Note: For detailed electrical performance criteria, see

Appendix A:

Antenna Specification

, page 101.

Determining the antenna’s location

Considerthefollowingpointswhendecidingwheretoputthe

antenna:

•AntennalocationmayaffectRFperformance.Althoughthe

moduleisshieldedtopreventinterferenceinmostapplica‐

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tions,theplacementoftheantennaisstillveryimportant—

ifthehostdeviceisinsufficientlyshielded,highlevelsof

broadbandorspuriousnoisecandegradethemodule’s

performance.

•Connectingcablesbetweenthemoduleandtheantenna

musthave50Ωimpedance.Iftheimpedanceofthemodule

ismismatched,RFperformanceisreducedsignificantly.

•Antennacablesshouldberouted,ifpossible,awayfrom

noisesources(switchingpowersupplies,LCDassemblies,

etc.).Ifthecablesarenearthenoisesources,thenoisemay

becoupledintotheRFcableandintotheantenna.

Disabling the diversity antenna

•MC57xx—Ifyourhostdeviceisnotdesignedtousethe

MC57xxmodule’sdiversityantenna,terminatetheinterface

witha50Ωload.

•MC8780/MC8781/MC8785V/MC8790/MC8790V/

MC8791V/MC8792V—UsetheATcommand!RXDEN=0to

disablereceivediversityor !RXDEN=1toenablereceive

diversity.

Interference and sensitivity

Note: These modules are based

on ZIF (Zero Intermediate

Frequency) technologies; when

performing EMC

(Electromagnetic Compatibility)

tests, there are no IF

(Intermediate Frequency)

components from the module to

consider.

SeveralsourcesofinterferencecanaffecttheRFperformance

ofthemodule(RFdesense).Commonsourcesincludepower

supplynoiseanddevice‐generatedRF.

RFdesensecanbeaddressedthroughacombinationof

mitigationtechniquesandradiatedsensitivitymeasurement.

Power supply noise

NoiseinthepowersupplycanleadtonoiseintheRFsignal.

Note: Values in this guide are

taken from the appropriate

product specification documents

(PSDs) (listed in

documents

, page 13) — in the

case of a discrepancy between

this document and the relevant

PSD, use the value listed in the

PSD.

Thepowersupplyripplelimitforthemoduleisnomorethan

200mVp‐p1Hzto100kHz.Thislimitincludesvoltageripple

duetotransmitterburstactivity.

Interference from other wireless devices

Wirelessdevicesoperatinginsidethehostdevicecancause

interferencethataffectsthemodule.

Todeterminethemostsuitablelocationsforantennasonyour

hostdevice,evaluateeachwirelessdevice’sradiosystem,

consideringthefollowing:

•Anyharmonics,sub‐harmonics,orcross‐productsofsignals

generatedbywirelessdevicesthatfallinthemodule’sRx

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rangemaycausespuriousresponse,resultingindecreased

Rxperformance.

•TheTxpowerandcorrespondingbroadbandnoiseofother

wirelessdevicesmayoverloadorincreasethenoisefloorof

themodule’sreceiver,resultinginRxdesense.

Theseverityofthisinterferencedependsontheclosenessof

theotherantennastothemodule’santenna.Todetermine

suitablelocationsforeachwirelessdevice’santenna,

thoroughlyevaluateyourhostdevice’sdesign.

Device-generated RF

Note: The module can cause

interference with other devices

such as hearing aids and on-

board speakers.

Wireless devices such as the

Mini Card transmit in bursts

(pulse transients) for set

durations (RF burst frequencies).

Hearing aids and speakers

convert these burst frequencies

into audible frequencies,

resulting in audible noise.

AllelectroniccomputingdevicesgenerateRFinterferencethat

cannegativelyaffectthereceivesensitivityofthemodule.

Theproximityofhostelectronicstotheantennainwireless

devicescancontributetodecreasedRxperformance.Compo‐

nentsthataremostlikelytocausethisinclude:

•Microprocessorandmemory

•Displaypanelanddisplaydrivers

•Switching‐modepowersupplies

Theseandotherhigh‐speeddevices(inparticular,the

processor)candecreaseRxperformancebecausetheyrunat

frequenciesoftensofMHz.Therapidriseandfallofthese

clocksignalsgenerateshigher‐orderharmonicsthatoftenfall

withintheoperatingfrequencybandofthemodule,affecting

themodule’sreceivesensitivity.

Example

Onasub‐systemrunningat40MHz,the22ndharmonicfalls

at880MHz,whichiswithinthecellularreceivefrequency

band.

Note: In practice, there are usually numerous interfering frequencies

and harmonics. The net effect can be a series of desensitized receive

channels.

Note: It is important to

investigate sources of localized

interference early in the design

cycle.

Methods to mitigate decreased Rx

performance

Toreducetheeffectofdevice‐generatedRFonRxperfor‐

mance:

•Puttheantennaasfaraspossiblefromsourcesofinter‐

ference.Thedrawbackisthatthemodulemaybeless

convenienttouse.

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•Shieldthehostdevice.Themoduleitselfiswellshieldedto

avoidexternalinterference.However,theantennacannot

beshieldedforobviousreasons.Inmostinstances,itis

necessarytoemployshieldingonthecomponentsofthe

hostdevice(suchasthemainprocessorandparallelbus)

thathavethehighestRFemissions.

•Filteroutunwantedhigh‐orderharmonicenergybyusing

discretefilteringonlowfrequencylines.

•Formshieldinglayersaroundhigh‐speedclocktracesby

usingmulti‐layerPCBs.

•Routeantennacablesawayfromnoisesources.

Radiated sensitivity

measurement

Awirelessdevicecontainsmanysourcesofnoisethat

contributetoareductioninRxperformance.

Todeterminetheextentofanydesensitizationofreceiver

performanceduetoself‐generatednoiseinthehostdevice,

over‐the‐air(OTA)orradiatedtestingisrequired.Thistesting

canbeperformedbySierraWirelessoryoucanuseyourown

OTAtestchamberforin‐housetesting.

Sierra Wireless’ sensitivity testing and

desensitization investigation

Mostcarriersrequireacertainlevelofreceiverperformanceto

ensureproperfunctioningofthedeviceontheirnetworks.

Althoughthemodulehasbeendesignedtomeetthesecarrier

requirements,itisstillsusceptibletovariousperformance

inhibitors.

AspartoftheEngineeringServicespackage,SierraWireless

offersmodemOTAsensitivitytestinganddesensitization

(desense)investigation.Formoreinformation,contactyour

accountmanagerortheSalesDesk(seepage5).

Note: Sierra Wireless has the capability to measure TIS (Total

Isotropic Sensitivity) and TRP (Total Radiated Power) according to

CTIA's published test procedure.

OTA test chamber configuration

TomakeOTAmeasurements,atestchamberisrequired.A

full‐sizeanechoicchamberisnotnecessarilyrequired.

Figure3‐2showsasmallanechoicchambermanufacturedby

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Lindgren.Thisdoesnotprovidepowertothesameaccuracy

asafull‐sizeanechoicchamber,butissufficientforthisappli‐

cation.Abasestationsimulator,suchasanAgilent8960

(shown)orRohde&SchwarzCMU200,isusedtoprovideFER

(FrameErrorRate)measurements.

Figure 3-2: Anechoic chamber

Path loss calculation

Thechamberiscalibratedforpathlossusingareference

antennawithknowngainthatisfeedingaspectrumanalyzer

orpowermeter.Thismakesitpossibletodeterminethe

radiatedpoweravailabletothereceivingantennaandthepath

loss:

Radiated Power = Measured received power

+ Any cable losses

- Reference receive antenna gain

Path Loss = Radiated power

- Input power

Note: It is not necessary to know the gain of the transmitting antenna;

it is included in the path loss.

Approx . 1 m

Agilent 8960

call box

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Positioning the DUT (Device Under Test)

Toachievemeaningfulresults,thedevicemustbepositioned

suchthatthepeakofthereceiveantennapatternispointed

towardthesourceantenna.Theoretically,thebestwayto

accomplishthisistomodifytheDUTsothatantennaoutputis

throughcoaxialcable.Thedeviceisthenrotateduntilthe

receivepowerismaximized.

Alternate path loss calculation method

Pathlosscanalsobecalculated,withoutmodifyingtheDUT,

byusingthetransmitcapabilitiesoftheunit.Thismethodof

calculationispossiblebecausethepositionthatmaximizes

transmitterpowerprovidesasufficientlyaccuratelocationfor

receiverdesensemeasurements.Theunitisplacedinacalland

settogeneratepeakoutputpower,eitherthroughatestmode,

orbyconfiguringthebasestationsimulatortoissuetheappro‐

priatecommand.Theunitisthenpositionedformaximum

powerasdeterminedbythecallbox.

Sensitivity vs. frequency

FortheMC57xx,sensitivityisdefinedastheinputpowerlevel

indBmthatproducesaFER(FrameErrorRate)of0.5%.Sensi‐

tivityshouldbemeasuredatallCDMAfrequenciesacross

eachband.Forexample,Figure3‐3illustratessensitivityinthe

USPCSband.Thereare25physicalchannelswithaspacingof

50KHz;thefirstCDMAchannelisCH25.

FortheMC87xx,sensitivityisdefinedastheinputpowerlevel

indBmthatproducesaBER(BitErrorRate)of2%(GSM)or

0.1%(UMTS).SensitivityshouldbemeasuredatallGSM/

UMTSfrequenciesacrosseachband,asshowninFigures3‐4

through3‐11.

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Sensitivity test results — MC57xx

Figure3‐3showstypicaltestresultsfortheUSPCSbandfor

bothconductedandover‐the‐airconnections.Theconducted

(orʺconnectorizedʺ)measurementsweremadeusinganRF

coaxialcableconnection.Theover‐the‐airmeasurementswere

madeusingbothanexternalantennaandatypicaldevice

antenna.

Figure 3-3: US PCS sensitivity measurements

Inthistest,theexternalantennaperformedbest—the

expectedresultifahighefficiencyantennawithsomegainis

used.Theinternalantennahaslessgainthantheexternal

antenna,sotheinternalantennaʹsperformanceisoffsetabove

theexternalantenna.Theantennagainmustbeknownto

determinewhethertheoffsetisstrictlytheresultofantenna

gainorifbroadbanddesenseispresent.Narrowbanddesense

canbeseenatchannels325,625,and925.

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Sensitivity test results — MC87xx

Figures3‐4through3‐11showtypicaltestresultsfor

conductedconnectionsfortheGSM850,GSM900,GSM1800,

GSM1900,UMTS850,UMTS1900,andUMTS2100bands.The

conductedmeasurementsweremadeusinganRFcoaxialcable

connection.

Figure 3-4: GSM850 sensitivity for BERII < 2%

Figure 3-5: EGSM900 sensitivity for BERII < 2%

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Figure 3-6: DCS1800 sensitivity for BERII < 2%

Figure 3-7: PCS1900 sensitivity for BERII < 2%

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Figure 3-8: UMTS850 sensitivity for BER < 0.1%

Figure 3-9: UMTS900 sensitivity for BER < 0.1

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Figure 3-10: UMTS1900 sensitivity for BER < 0.1%

Figure 3-11: UMTS2100 sensitivity for BER < 0.1%

Rev 1.9.1 Feb.09 Proprietary and Confidential 51

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4: Audio Interface

Note: Values in this guide are

taken from the appropriate

product specification documents

(PSDs) (listed in

documents

, page 13) — in the

case of a discrepancy between

this document and the relevant

PSD, use the value listed in the

PSD.

TheMC5725V/MC5727V/MC5728V/MC8775V/MC8785V/

MC8790V/MC8791V/MC8792Vmodulessupportfouraudio

modesthatmayberequiredbyahostaudiosystem:

•Handset

•Headset

•Carkit

•Speakerphone

Themodulessupportbothadifferentialanaloginterfaceand

PCMdigitalaudio,andallowdynamicrun‐timeselectionof

theappropriatemode.

Table4‐1summarizesthekeyaudiofeaturesofthesemodules.

Thesemodulesareintendedtoserveasanintegralcomponent

ofamorecomplexaudiosystem—forexample,aPDAwitha

separatecodecinterfacedtotheHostApplicationprocessor.

Table 4-1: Audio features

Feature Transmit Receive

Gain (adjustable) MC5725V / MC5727V — Up to

+16 dB analog gain

MC5728V — Programmable to 0 dB

or +24 dB

MC8775V / MC8785V / MC8790V /

MC8791V / MC8792V — Up to

+48.5 dB analog gain available

(when the analog interface is

selected)

Up to +12 dB

Filtering stages Several adjustable high-pass and

slope filters High-pass filter

Noise suppression Supported n/a

Echo cancellation Configurable for each audio mode

(headset, handset, speakerphone,

and car kit)

n/a

Output driver stage n/a Supported

FIR (Finite Impulse

Response) filtering MC87xx — Option of providing 13 tap FIR filtering for receive and

transmit paths to equalize the acoustic response of the speaker

and microphone elements.

Audio pass band 300 Hz–3.4 kHz

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Usually,theinterfacebetweenthemoduleandthehostaudio

systemissettoline‐levelamplitudeswithnotransducer

considerations.Theresponsibilityofthemodulecodecorhost

codecforspecialfunctionsisdetailedinTable4‐2.

System block diagrams

Note: When integrating the module into your host platform, make sure

the module has sufficient shielding to prevent RF interference.

MC5725V / MC5727V system block

Figure4‐1representstheMC5725V/MC5727Vmodule’saudio

systemblock,andincludesthefollowingfeatures:

•Moduleinterconnectsareshownontheleftsideofthe

diagram.Theaudiointerfaceusesthesignals:

·MIC_P/MIC_N

·SPK_P/SPK_N

Note: Make sure the host device

includes DC blocking capacitors

on the Audio In lines – the

module does not include series

capacitors.

•Dynamicrangesforeachprogrammablegainstageare

listed,withthefollowingconstraints:

·MIC_AMP1isprogrammableindiscretestepsonly

·CodecSTGain,whensettotheminimumsetting,effec‐

tivelymutessidetoneinthemodulecodec

Table 4-2: Functions - responsibility codecs

Function Responsible Codec

Phone oriented (e.g., echo

cancellation, FIR filtering) Module codec

Path-switching Host codec

Transducer interfaces Host codec

Adjustable gain / volume settings Either

DTMF / ringer tone generation Either

Mixing Host codec

Audio Interface

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Figure 4-1: MC5725V / MC5727V Audio system block

MC5728V system block

Figure4‐2representstheMC5728Vmodule’saudiosystem

block,andincludesthefollowingfeatures:

•Moduleinterconnectsareshownontheleftsideofthe

diagram.Theaudiointerfaceusesthesignals:

·MIC_P/MIC_N

·SPK_P/SPK_N

Note: Make sure the host device

includes DC blocking capacitors

on the Audio In lines – the

module does not include series

capacitors.

•Dynamicrangesforeachprogrammablegainstageare

listed,withthefollowingconstraints:

·MIC_AMP1isprogrammableto0dBor+24dBonly

·CodecSTGain,whensettotheminimumsetting,effec‐

tivelymutessidetoneinthemodulecodec

Decoder

RX DAC

EncoderTX ADC

HPF &

Slope

HPF

Echo Cancellation

NS &

AAGC Tx FIR

Rx FIR 13K CELP/

EVRC

Decoder

AAGC

13 bit A/D

13 bit D/A

CodecRxGain

RX_HPF_DIS_N

CodecSTGain

CodecTxGain

TX_HPF_DIS_N

TX_SLOPE_FILT_DIS_N

MIC_AMP1_GAIN

+16dB

+8dB

+6dB

-2dB

nsSwitch TxPCMFilt TxVolume

RxVolume

RxPCMFilt

AMP_SEL

001 010 100

10 01

MIC_SEL

35mW @ +3dBm0

RF Filter

33n

22p

MIC_AMP2_BYP

PCM I/F

+12dB

-25dB

-84dB

+12dB

-3dB

-84dB

+12dB

0dB

-81dB

+12dB

-48dB

-96dB

+12dB

0dB

-84dB

57.3mVrms

@ 0dBm0

SPK_P

SPK_N

MIC_P

MIC_N

13K CELP/

EVRC

Encoder

DTMF

Encoder

DTMF Rx Gain

DTMF Tx Gain

DTMF

Decoder

Audio In

Audio Out

Interface

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Figure 4-2: MC5728V Audio system block

MC8775V / MC8785V / MC8790V / MC8791V / MC8792V

system block

Figure4‐3representstheMC8775V/MC8785V/MC8790V/

MC8791V/MC8792Vmodule’saudiosystemblock,and

includesthefollowingfeatures:

•Moduleinterconnectsareshownontheleftsideofthe

diagram.Theanalogaudiointerfaceusesthesignals:

·MIC_P/MIC_N

·SPK_P/SPK_N

Note: Make sure the host device

includes DC blocking capacitors

on the analog Audio In lines –

the module does not include

series capacitors.

•ThedigitalPCMaudiointerfaceusesthesignals:

·PCM_CLK

·PCM_DIN

·PCM_DOUT

·PCM_SYNC

•Dynamicrangesforeachprogrammablegainstageare

listed,withthefollowingconstraints:

·MIC_AMP1isprogrammablein1.5dBsteps

·CodecSTGain,whensettotheminimumsetting,effec‐

tivelymutessidetoneinthemodulecodec

•WhenPCMaudioisselected,theRXDACandTXADC

blocksarebypassed—theexternalPCMcodeccontrols

transmitgain,receivegain,andsidetonegain.

Decoder

RX DAC

EncoderTX ADC

HPF &

Slope

HPF

Echo Cancellation

NS &

AAGC Tx FIR

Rx FIR 13K CELP/

EV RC

Decoder

AAGC

13 bit A/D

13 bit D/A

CodecRxGain

RX_HPF_DIS_N

CodecSTGain

CodecTxGain

TX_HPF_DIS_N

TX_SLOPE_FILT_DIS_

MIC_ A MP1

0 dB or +24 dB

nsSw itch TxPCMFilt TxVolume

RxV olume

RxPCMFilt

AMP_SEL

MIC_SEL

35mW @ +3dBm0

RF Filter

33n

PCM I/F

+12dB

-25dB

-84dB

+12dB

-3dB

-84dB

+12dB

0dB

-84dB

0dB

-48dB

-96dB

+12dB

0dB

-84dB

57.3mVrms

@ 0dBm0

SPK1N

SPK1P

MIC1P

MIC1N

13K CELP/

EV RC

Encoder

DTMF

Encoder

DTMF Rx Gain

DTMF Tx Gain

DTMF

Decoder

Audio In

Audio Out

Interfac

Audio Interface

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Note: Data mixing is not supported. If mixing of voice signal is

required, it must be done by the host processor.

Figure 4-3: MC8775V / MC8785V / MC8790V / MC8791V / MC8792V Audio system block

Modes of operation

Thesemodulessupportfouroperationalmodes:headset,

handset,carkit,andspeakerphone—endproductscanuseany

combinationofthesemodes.

Thehostdevicemustusehost‐modemmessagingtotellthe

modulewhichmodetouseforeachcall.

Sidetone support

Thesidetonepathmixesthenear‐endtransmitvoicetothe

near‐endreceive.Thisgivesthenear‐endusersomefeedback

thatindicatesthatthecallisupandthattheaudiosystemis

functioning.

ThesidetonepathcanbeenabledineitherthePDAcodecor

theMiniCardmodem—eachpathisequallyvalid.Itshould

notbeaddedtobothdevices,andforspeakerphoneorcarkit

applications,bothsidetonepathsshouldbedisabled.

Thetypicalhandsetsidetoneis12dBbelowtransmitvoice

levels.

Decoder

RX DAC

EncoderTX ADC

HPF &

Slope

HPF

Echo Cancellation

NS &

AAGC Tx FIR

Rx FIR 13K CELP/

EVRC

Decoder

AAGC

13 bit A/D

13 bit D/A

CodecRxGain

RX_HPF_DIS_N

CodecSTGain

CodecTxGain

TX_HPF_DIS_N

TX_SLOPE_FILT_DIS_N

MIC_AMP1_GAIN

-6dB to +49.5dB

in 1.5dB steps

nsSwitch TxPCMFilt TxVolume

RxVolume

RxPCMFilt

AMP_SEL

001 010 100

35mW @ +3dBm0

RF Filter

33n

22p

PCM I/F

+12dB

-25dB

-84dB

+12dB

-3dB

-84dB

+12dB

0dB

-81dB

+12dB

-48dB

-96dB

+12dB

0dB

-84dB

57.3mVrms

@ 0dBm0

SPK_P

SPK_N

MIC_P

MIC_N

13K CELP/

EVRC

Encoder

DTMF

Encoder

DTMF Rx Gain

DTMF Tx Gain

DTMF

Decoder

Audio In

Audio Out

Interface

PCM Audio interface

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ForHandsetandHeadsetmode,thethresholdofpain(+120

dBSPL)mustnotbeexceededatthemaximumvolumesetting.

Agoodtargetforthemediumvolumesettingis+94dBSPL,as

thisisatypicallevelforconversationalspeech.

Mostaudiogainshouldbeaddedtothehostaudiofrontend

(withinthePDAstylecodecgainblocksoramplifiersbetween

thehostcodecandtransducers).RefertotheappropriateMini

CardProductSpecificationDocumentforreferencelevelson

themodemreceiveandtransmitside.

Echo cancellation support

TheMiniCardoffersfourmodesofechocancellationto

supportuniqueend‐unitaudiocapabilities(echocancellation

canalsobeturnedoffcompletely).Allechocancellationis

near‐end(mobileTX)cancellationonly.Thenetworkprovides

someleveloffar‐endechocancellation.

Table 4-3: Echo cancellation details

Mode Details

Handset •Short echo path (<16 ms travel time from speaker to

microphone)

•Handset design requires good isolation between

speaker and microphone

•Echo canceller allows full-duplex conversation with

absolute minimum echo

Headset •Short echo path (<16 ms travel time from speaker to

microphone)

•Headset design may allow higher echo than

handset mode—microphone and speaker are physi-

cally closer

•More aggressive echo canceller algorithm allows

full-duplex conversation on headsets with good

isolation

Car kit •Long echo path (<64 ms travel time from speaker to

microphone)

•Loud echo

•For use with hands-free car kit or speakerphone

applications with mild distortion

Audio Interface

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Audio signal interface

Thedifferentialmicrophoneinputofferssuperiornoise

rejectionperformancetothesingle‐endedapproach.The

terminationofthedifferentialpairrejectscommonsignals

(suchasnoise).Thepairshouldberoutedtogetherforoptimal

noiserejection.SinceMIC_PandMIC_Narehighimpedance

inputs,itisimportanttoisolatethesefrompossiblenoise

sources(togglingdigitallineswithfastedges).

Thespeakerinterfacecanbesingle‐endedordifferential

dependingonproduct.Single‐endedspeakeroutputsrelyon

modemgroundasanaudioreference.

Theaudiopassbandforbothreceiveandtransmitpaths

(speakerandmicrophone)extendsfrom300Hzto3.4kHz.A

programmablesidetonewitharangefrommutetounitygain

isavailableforbothheadsetandmainaudiopaths.Sidetone

shouldbemutedforspeakerphoneuse.

Notethatcertaincarriersnowrequireuseofhearing‐aid

compatibletransducersinahandsetdesign.ThePrimary

audiopathcanbeinterfaceddirectlytosuchdevices.Referto

ANSIC63.19fordetailsregardingreducedRFemissions(ʺU3

ratingʺ)andinductive/telecoilcoupling(ʺU3Tʺrating)

devices.

Speakerphone •Long echo path (<64 ms travel time from speaker to

microphone)

•Loud echo

•For use with speakerphone applications with high

distortion

•Half-duplex algorithm, very aggressive in near-end

Tx muting to eliminate transmitted echo

Off

Table 4-3: Echo cancellation details

Mode Details

Table 4-4: Primary audio signal interface

Signal Pin # Type Directions Description

MIC_P 1Analog Input Non-inverted

microphone input (+)

MIC_N 3Analog Input Inverted microphone

input (-)

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Audio function partitioning

Thesephone‐orientedfunctionsareusuallyundermodule

control:

•FIRfilters—bothtransmitandreceivepath

•Noisesuppression—requiredduetohighsensitivityand

gainintransmitpath

•Echocancellation—differentforeachaudiopathand

environment(handset,headset,carkit,speakerphone)

•Highpassfiltering/slopefilteringfunctions—requiredper

phoneacousticrequirements

•AGC(AutomaticGainControl)—normalizesaudio

volumesinvaryingacousticenvironments

•DTMFtones—thegenerationanddetectionofDTMFtones

isrequiredinbothdirectionsofthephoneinterface

•Comfortnoise—lowlevelnoiseinjectedintoreceiverpath

foruserʺconnectionʺexperience

•Simpleringers—digitalandanalogtones,melodyringers,

MIDIwithlimitedmemorystorage

Thesefunctionsaretypicallyperformedinthehostcodec:

•VoiceMemo—performedbythehostifsignificantmemory

storageisrequired

•Polyphonicringtone—hostoftensupportsWAV,MIDI

formatswithsignificantmemorystorage

•Audiopathswitching—turnonaudiopathdependingon

userinterfaceselection,orheadsetdetection

SPK_P 5Analog Output Non-inverted

speaker output (+)

SPK_N 7Analog Output Inverted speaker

output (-)

Table 4-5: PCM digital audio signal interface

Signal Pin # Type Directions Description

PCM_CLK 45 Digital Output PCM clock

PCM_DIN 47 Digital Input (internal

pull-down) PCM data in

PCM_DOUT 49 Digital Output PCM data out

PCM_SYNC 51 Digital Input (internal

pull-down) PCM sync

Table 4-4: Primary audio signal interface

Signal Pin # Type Directions Description

Audio Interface

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•Audiopathmixing—requiredforvoicememorecording

andplaybackviamultipleaudiopaths

•Transducerinterface—hostprovidesacousticdrivers,must

occuroutsideofpathswitchingandmixing

Thesefunctionscanbeperformedineitherhostormodule

codec,dependingonbalanceofcomponentselectionand

engineeringresources:

•Volumesettings—adjustablegainsettingsbasedonuser

interfaceselections

•Sidetone—carefulplacementofsidetonegaincontrolis

requiredtopreventtheneedtoadjustsidetonegainwith

varyingvolumesettings

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5: Host / Module Interfaces

Thischapterprovidesinformationaboutspecifichostinterface

pinassignments,thehost‐modulecommunicationinterface

(USBinterface),LEDoutputs,USIMinterface,andlists

extendedATcommandsthatmaybeusefulforhardware

integrationtesting.

Host interface pin details

Note: On any given interface (USB, USIM, etc.) leave unused inputs

and outputs as no-connects.

Detailedconnectorpininformationisavailableintheproduct

specificationdocumentsforeachmodule—refertothese

documentswhenintegratingmodulesintoyourhostdevices.

Thefollowingarespecificintegrationconsiderationsrelating

tothehostinterfaceconnectorpins:

•Onanygiveninterface(USB,USIM,etc.),leaveunused

inputsandoutputsasno‐connects.

•Table5‐1describesMC8775V/MC8785V/MC8790V/

MC8791V/MC8792V‐specificpinsthatareratedfor2.6V. 

ReferencethesepinstotheMSM_2.6Vrail(pin11)asthe

maximumlimit.

Table 5-1: MC8775V / MC8785V / MC8790V / MC8791V /

MC8792V 2.6 V connector pinsa

Pin Signal name Description

1MIC_P Microphone Positive

3MIC_N Microphone Negative

6GPIO_1 General Purpose I/Ob

16 GPIO_2 General Purpose I/Oa

22 AUXV1 Auxiliary Voltage 1

28 GPIO_3 General Purpose I/Oa

33 MDL_RESET_N Reset

44 GPIO_4 General Purpose I/Oa

45 CTS1 / PCM_CLK UART Clear To Send or PCM Clock

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USB interface

TheUSBinterfaceistheonlypathforcommunicationbetween

thehostandmodule.

TheinterfacecomplieswiththeUniversalSerialBusSpecifi‐

cation,Rev2.0.

FeaturesoftheUSBinterfaceinclude:

•Supportforthefull‐speed(12Mbps)datarate

•(MC8785V/MC8790/MC8790V/MC8791V/MC8792V)

Supportforthehigh‐speed(480Mbps)datarate

•Transferofgeneral,phonediagnostic,andover‐the‐airdata

betweenthemoduleandthehost

•EnumerationofthemoduleasasetofModem(MC57xx)or

COM(MC57xxandMC87xx)ports,usinghostWindows

drivers

•Enumerationofthemoduleasasetof/dev/ttyUSBndevices

forLinuxsystemswiththeSierraWirelessdriverinstalled

•USB‐complianttransceivers

USB handshaking

Note: If you are using the Windows or Linux drivers provided by

Sierra Wireless, you can skip this section — it is intended for devel-

opers who are creating their own USB drivers.

ThehostmustactasaUSBhostdevicetointerfacewiththe

module.

46 GPIO_5 General Purpose I/Oa

47 RTS1 / PCM_DIN UART Request To Send or PCM Data In

48 GPIO_6 General Purpose I/Oa

49 RXD1 / PCM_DOUT UART Receive Data or PCM Data Out

51 TXD1 / PCM_SYNC UART Transmit Data or PCM Sync

a. This table is abstracted from the PSD—the PSD takes precedence

b. No defined function—reserved for future use

Table 5-1: MC8775V / MC8785V / MC8790V / MC8791V /

MC8792V 2.6 V connector pinsa (Continued)

Pin Signal name Description

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ThemoduleusestheUSBstandardSuspendandResume

functions(describedfurther)tocontrolthesleepandwakeup

states.FordetailedspecificationsofResumeandSuspend,

refertoUniversalSerialBusSpecification,Rev2.0.

Suspending

ThemodulesupportsUSBSuspendmode.

Whenthemoduleenterssuspendmode,itshutsdownthe

USBclocktosavepower.

Whileinthesuspendstate:

•ThemoduleprovidespowertotheD+/‐interfacetosignal

itscurrentstatetothehostdevice.

•ThehostmustmaintaintheVCC_3V3voltage.

RefertoUniversalSerialBusSpecification,Rev2.0forcritical

timingparametersforthesuspendstate.

Resume

USBactivitymayberesumedbyeithertheUSBhostorbythe

module.

IfthehostinitiatesUSBactivity:

1. TheUSBtransceiverdetectsthechangeinbusactivityand

triggerstheUSB_RESUMEinterrupttothemoduleʹs

processor.

2. ThemodulethenenablesitsUSBclockandrespondstothe

host.

IfthemoduleinitiatesUSBcommunication(RemoteWakeup):

1. ThemoduleenablesitsUSBclock.

2. ThemoduleenablestheUSBtransceiver.

3. Themodulesendstheresumesignalforatleast20ms.

RefertoUniversalSerialBusSpecification,Rev2.0forcritical

timingparametersfortheresumestate.

Host USB driver requirements

TheUSBdriveronthehostdevicemustmeetthesecritical

requirements:

•ThehostUSBdrivermustsupportremotewakeup,resume,

andsuspendoperationsasdescribedinUniversalSerialBus

Specification,Rev2.0.

•ThehostUSBdrivermustsupportserialportemulation.

Themoduleimplementsboth27.010multiplexingandUSB‐

CDC.

•Whenthehostdoesn’thaveanyvaliddatatosend,thehost

USBdrivershouldNOTsendanySOFtokens(start‐of‐

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frames)tothemodule.Thesetokenskeepthemodule

awakeandcauseunnecessarypowerconsumption.

LED output

ThemoduledrivestheLEDoutputaccordingtothePCI‐

ExpressMiniCardspecification(summarizedinTable5‐2,

below).

Table 5-2: LED states

State Indicates Characteristics

Off Module is not

powered. Light is off.

On Module is powered

and connected, but

not transmitting or

receiving.

Light is on.

Slow blink Module is powered

and searching for a

connection.

LED is flashing at a

steady, slow rate.

•250 ms ± 25% ON

period

•0.2 Hz ± 25% blink

rate

Faster blink Module is

transmitting or

receiving.

LED is flashing at a

steady, faster rate.

•Approximately 3 Hz

blink rate

Note: MC572x modules

support customer-defined

LED controls.

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Figure 5-1: Example LED

USIM interface

Note: This section applies only to GSM (MC87xx) modules.

ThemoduleisdesignedtosupportoneUSIM(Universal

SubscriberIdentityModule).TheUSIMholdsaccountinfor‐

mation,allowinguserstousetheiraccountonmultiple

devices.

TheUSIMinterfacehasfoursignals(plusGround).Theseare

definedinTable5‐3withanexamplecircuitshownin

Figure5‐2.(ForUSIMcardcontacts,seeFigure5‐3.)

Current limiting Resistor

LED

VCC 3.3V

MIO

MiniCard

Table 5-3: USIM pins

Pin name USIM contact

number Function

XIM_VCC 1USIM VCC

XIM_RESET 2Active low USIM reset

XIM_CLK 3Serial clock for USIM data

XIM_DATA 7Bi-directional USIM data line

XIM_GND 5Ground

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Figure 5-2: USIM application interface

Figure 5-3: USIM card contacts (contact view)

MC87xx

XIM_VCC

XIM_RESET

XIM_DATA

XIM_CLK

USIM card connector

GND

(Optional.

Locate near the

USIM socket)

47 pF, 51 Ω

4.7uF

X5R

typ

(C1)

XIM_VCC

XIM_CLK

XIM_IO

XIM_RESET

Located near

USIM socket

Located near USIM socket.

NOTE: Carefully consider if ESD

protection is required – it may

increase signal rise time and

lead to certification failure

GND

ESD

protection

(C3)

(C7)

(C2)

(C5)

(Optional.

Locate near the

USIM socket)

15 kΩ - 30 kΩ

GND VCC

VPP RST

I/O CLK

RFU RFU

Contact View (notched corner at top left)

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USIM operation

Note: For interface design

requirements, refer to:

(2G) 3GPP TS 51.010-1, section

27.17, or

(3G) ETSI TS 102 230 V5.5.0,

section 5.2

WhendesigningtheremoteUSIMinterface,youmustmake

surethattheUSIMsignalintegrityisnotcompromised.Some

designrecommendationsinclude:

•ThetotalimpedanceoftheVCCandGNDconnectionsto

theUSIM,measuredatthemoduleconnector,shouldbe

lessthan1Ωtominimizevoltagedrop(includesanytrace

impedanceandlumpedelementcomponents—inductors,

filters,etc.).

Note: The MC87xx is designed for use with either a 1.8 V or 3 V

USIM.

•PositiontheUSIMconnectornomorethan10cmfromthe

module.Ifalongerdistanceisrequiredbecauseofthe

designofthehostdevice,ashieldedwireassemblyis

recommended—connectoneendascloseaspossibletothe

USIMconnectorandtheotherendascloseaspossibleto

themoduleconnector.Theshieldedassemblymayhelp

shieldtheUSIMinterfacefromsystemnoise.

•ReducecrosstalkontheXIM_datalinetoreducetheriskof

failuresduringGCFapprovaltesting.

•AvoidroutingtheXIM_CLKandXIM_DATAlinesin

paralleloverdistancesgreaterthan2cm—cross‐couplingof

theselinescancausefailures.

•KeepUSIMsignalsasshortaspossible,andkeepverylow

capacitancetracesontheXIM_DATAandXIM_CLKsignals

tominimizesignalrisetime—signalrisetimemustbe<1μs.

Highcapacitanceincreasessignalrisetime,potentially

causingyourdevicetofailcertificationtests.

•Addexternalpull‐upresistors(15kΩ—30kΩ),ifrequired,

betweentheSIM_IOandSIM_VCClinestooptimizethe

signalrisetime.

•3GPPhasstringentrequirementsforI/Orisetime(<1μs),

signallevellimits,andnoiseimmunity—considerthis

carefullywhendevelopingyourPCBlayout.

•TheVCClineshouldbedecoupledclosetotheUSIM

socket.

•USIMisspecifiedtorunupto5MHz(USIMclockrate).

Takenoteofthisspeedintheplacementandroutingofthe

USIMsignalsandconnectors.

•Youmustdecideif,andhowmuch,additionalESD

protectionandseriesresistorsaresuitableforyourproduct.

TheMC87xxalreadyincludesadditionalESDprotection.

Addingmoreprotection(additionalcircuits)thanis

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necessarycoulddecreasesignalrisetime,increaseload

impedance,andcauseUSIMcertificationfailure.

•PuttinganoptionaldecouplingcapacitoratXIM_VCCnear

theUSIMsocketisrecommended—thelongerthetrace

length(impedance)fromthesockettothemodule,the

greaterthecapacitancerequirementtomeetcompliance

tests.

•Puttinganoptionalseriescapacitorandresistortermination

(toground)atXIM_CLKattheUSIMsockettoreduceEMI

andincreasesignalintegrityisrecommendedifthetrace

lengthbetweentheUSIMsocketandmoduleislong—47pF

and50Ωresistorarerecommended.

•ProtecttheUSIMsockettomakesurethattheUSIMcannot

beremovedwhilethemodule/hostdeviceispoweredup.

Forexample,youcouldplacethesocketunderthebattery

(forportabledevices);considersimilaroptionsforother

devicetypes.

•TestyourfirstprototypehosthardwarewithaComprion

IT3USIMtestdeviceatasuitabletestingfacility.

Extended AT commands

SeveralproprietaryATcommandsareavailableforthe

MC57xxandMC87xxtouseinhardwareintegrationdesign

andtesting(thesecommandsareNOTintendedforusebyend

users).RefertoCDMAExtendedATCommandReference

(Document2130621)fortheMC57xx,orMC87xxModem

ExtendedATCommandReference(Document2130616)forthe

MC87xxforalistofallavailablecommandsanddescriptions

oftheirfunctionality.

Someusefulcommandsforuseinhardwareintegrationare

listedinTable5‐4(MC57xx)andTable5‐5(MC87xx).

Table 5-4: MC57xx Extended AT commands

Command Description

Internal commands

!OEM Unlocks OEM protected commands

Modem state commands

!DIAG Sets diagnostic mode

!BOOTHOLD Resets modem and waits in boot loader

RF AT commands

!CHAN Sets RF band and channel

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

!RX Turns on / off the first receiver

!RX2 Turns on / off the second receiver

!RXAGC Reads Rx AGC

!RX2AGC Reads second Rx AGC

!TX Enables Tx chain

!TXAGC Sets Tx AGC

!KEYON Turns on transmitter

!KEYOFF Turns off transmitter

!ALLUP Turns on transmitter in all ups condition

Provisioning commands

!CARRIERID Displays the carrier ID

CDMA commands

!STATUS Displays the status of the modem

!SCI Gets slot cycle index

Power control commands

!PCSTATE Power control state

!PCINFO Reads the power control information

!PCTEMP Reads the power control temperature

!PCVOLT Reads the power control voltage

Table 5-4: MC57xx Extended AT commands (Continued)

Command Description

Table 5-5: MC87xx Extended AT commands

Command Description

Password commands

!ENTERCND Enables access to password-protected

commands

!SETCND Sets AT command password

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Modem reset and status commands

!DTEMP Returns the temperature of the PA (Power

Amplifier) used by the:

•UMTS transceiver, or

•GSM transceiver

!GRESET Resets the modem

!GSTATUS Returns the operation status of the modem (mode,

band, channel, and so on)

Diagnostic commands

!BAND Selects a set of frequency bands or reports

current selection

!GBAND Reads / sets the current operating band

Test commands

!DAFTMACT

(password protected) Puts the modem into FTM (Factory Test Mode)

!DAFTMDEACT

(password-protected) Puts the modem into online mode

!DAGGRSSI

(password-protected) Returns the RSSI (Received Signal Strength

Indicator) in dBm (GSM mode)

!DAGGRSSIRAW

(password-protected) Returns the raw RSSI (GSM mode)

!DAGSLOCK

(password-protected) Returns the RF synthesizer lock state

!DAGSRXBURST

(password-protected) Sets the GSM receiver to burst mode

!DAGSRXCONT

(password-protected) Sets the GSM receiver continually on

!DAGSTXFRAME

(password-protected) Sets the GSM Tx frame structure

!DASBAND

(password-protected) Sets the frequency band (UMTS / GSM)

!DASCHAN

(password-protected) Sets the modem channel (frequency) (UMTS /

GSM)

!DASLNAGAIN

(password-protected) Sets the LNA (Low Noise Amplifier) gain state

!DASPDM

(password-protected) Sets the PDM (Pulse Duration Modulation) value

Table 5-5: MC87xx Extended AT commands (Continued)

Command Description

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!DASTXOFF

(password-protected) Turns off the Tx PA (Power Amplifier)

!DASTXON

(password-protected) Turns on the Tx PA (Power Amplifier)

!DAWGRXAGC

(password-protected) Returns the Rx AGC (Automatic Gain Control)

value (UMTS)

!DAWSCONFIGRX

(password-protected) Sets the UMTS receiver to factory calibration

settings

!DAWGCTON

(password-protected) Returns the Carrier to Noise ratio (WCDMA)

!DAWSPARANGE

(password-protected) Sets the PA range state machine (UMTS)

!DAWSTXCW

(password-protected) Sets the waveform used by the transmitter

(UMTS)

!OSDSM

(password-protected) Displays memory usage for DSM (Distributed

Shared Memory) buffer pools

Table 5-5: MC87xx Extended AT commands (Continued)

Command Description

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6: Thermal Considerations

Thischapterdescribesthethermalcharacteristicsofthe

moduleandprovidessuggestionsfortestingandaddressing

thermalissues.

Thermal considerations

MiniCardscangeneratesignificantamountsofheatthatmust

bedissipatedinthehostdeviceforsafetyandperformance

reasons.

Theamountofthermaldissipationrequireddependsonthe

followingfactors:

•Supplyvoltage—Maximumpowerdissipationforthese

modulescanbeupto3.1Watvoltagesupplylimits.

•Usage—Typicalpowerdissipationvaluesdependonthe

locationwithinthehost,amountofdatatransferred,etc.

Specificareasrequiringheatdissipationincludethefourshield

casesindicatedinFigure6‐1.

•Transmitter—topshield(nexttoRFconnectors).Thisis

likelytobethehottestarea.

•Baseband1—bottomshield,belowthetransmitter

•Receiver—topshield,othersideofmodulefromthetrans‐

mitter

•Baseband2—bottomshield,belowthereceiver

Youcanenhanceheatdissipationby:

•Maximizingairflowover/aroundthemodule

•Locatingthemoduleawayfromotherhotcomponents

Note: Adequate dissipation of heat is necessary to ensure that the

module functions properly, and to comply with the thermal require-

ments in PCI Express Mini Card Electromechanical Specification

Revision 1.1.

Module testing

Whentestingyourintegrationdesign:

•Testtoyourworstcaseoperatingenvironmentconditions

(temperatureandvoltage)

•Testusingworstcaseoperation(transmitteron100%duty

cycle,maximumpower)

•Monitortemperatureatallshieldlocations.Attachthermo‐

couplestoeachshieldindicatedbelow

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Figure 6-1: Shield locations

Note: Make sure that your system design provides sufficient cooling

for the module. The RF shield temperature should be kept below

90 °C when integrated to prevent damage to the module’s compo-

nents.

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7: Design Checklist

Thischapterprovidesasummaryofthedesignconsiderations

mentionedthroughoutthisguide.Thisincludesitemsrelating

tothepowerinterface,RFintegration,thermalconsiderations,

cablingissues,andsoon.

Note: This is NOT an exhaustive list of design considerations. It is

expected that you will employ good design practices and engineering

principles in your integration.

Table 7-1: Hardware integration design considerations

Suggestion Section where discussed

Component placement

Protect the USIM socket so that the USIM cannot be removed

while the host is powered up.

USIM operation

page 67

If an ESD suppressor is not used, allow space on the USIM

connector for series resistors in layout (up to 100 Ω may be used

depending on ESD testing requirements).

USIM operation

page 67

Minimize RF cable losses as these affect the performance values

listed in the product specification document.

RF connection

page 39

Antennas

Match the module / antenna coax connections to 50 Ω —

mismatched antenna impedance and cable loss negatively

affects RF performance.

RF connection

page 39

If installing both the MC57xx and MC87xx in the same device,

consider using separate antennas for maximum performance.

Antenna and cabling

page 40

Power

Limit host power rail dips caused by module inrush current by

adding sufficient capacitance to the host power rail.

Inrush currents

page 24

Make sure the power supply can handle the maximum current

specified for the module type.

Current consumption overview

page 27

Limit the total impedance of VCC and GND connections to the

USIM at the connector to less than 1 Ω (including any trace

impedance and lumped element components — inductors,

filters, etc.). All other lines must have a trace impedance less

than 2 Ω.

USIM operation

page 67

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Decouple the VCC line close to the USIM socket. The longer the

trace length (impedance) from socket to module, the greater the

capacitance requirement to meet compliance tests.

USIM operation

page 67

EMI / ESD

Investigate sources of localized interference early in the design

cycle.

Methods to mitigate decreased

Rx performance

page 42

Provide ESD protection for the USIM connector at the exposed

contact point (in particular, the CLK, VCC, IO, and RESET lines).

USIM operation

page 67

Keep very low capacitance traces on the XIM_DATA and

XIM_CLK signals.

To minimize noise leakage, establish a very good ground

connection between the module and host.

Ground connection

page 39

Route cables away from noise sources (for example, power

supplies, LCD assemblies, etc.).

Methods to mitigate decreased

Rx performance

page 42

Shield high RF-emitting components of the host device (for

example, main processor, parallel bus, etc.).

Methods to mitigate decreased

Rx performance

page 42

Use discrete filtering on low frequency lines to filter out unwanted

high-order harmonic energy.

Methods to mitigate decreased

Rx performance

page 42

Use multi-layer PCBs to form shielding layers around high-speed

clock traces.

Methods to mitigate decreased

Rx performance

page 42

Thermal

Test to worst case operating conditions — temperature, voltage,

and operation mode (transmitter on 100% duty cycle, maximum

power).

Thermal considerations

page 73

Use appropriate techniques to reduce module temperatures.

(airflow, heat sinks, heat-relief tape, module placement, etc.)

Thermal considerations

page 73

Host / Modem communication

Make sure the host USB driver supports remote wakeup,

resume, and suspend operations, and serial port emulation.

USB handshaking

page 62

When no valid data is being sent, do not send SOF tokens from

the host (causes unnecessary power consumption).

USB handshaking

page 62

Table 7-1: Hardware integration design considerations (Continued)

Suggestion Section where discussed

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8: Testing

Note: All Sierra Wireless embedded modules are factory-tested to

ensure they conform to published product specifications.

DevelopersofOEMdevicesintegratingSierraWireless

modulesshouldincludeaseriesoftestphasesintheir

manufacturingprocesstomakesurethattheirdeviceswork

properlywiththeembeddedmodules.

Suggestedphasesinclude:

•Acceptance testing—testingofmoduleswhentheyare

receivedfromSierraWireless

•Certification testing—testingofcompleteddevicestoobtain

requiredcertificationsbeforebeginningmassproduction

•Production testing—testingofcompleteddeviceswiththe

modulesembedded

•Quality assurance testing—post‐production

AT command entry timing requirement

Somecommandsrequiretimetoprocessbeforeadditional

commandsareentered.Forexample,themodemwillreturn

“OK”whenitreceivesAT!DAFTMACT.IfAT!DASBANDis

receivedtoosoonafterthis,themodemwillreturnanerror.

Whenbuildingautomatedtestscripts,ensurethatsufficient

delaysareembeddedwherenecessarytoavoidtheseerrors.

Acceptance testing

Note: Acceptance testing is

typically performed for each

shipment received.

WhenyoureceiveashipmentfromSierraWireless,youshould

makesureitissuitablebeforebeginningproduction.

Fromarandomsamplingofunits,testthat:

•Theunitsareoperational

•Theunitsareloadedwiththecorrectfirmwareversion

Test requirements

Toperformthesuggestedtests,yourequireatestsystemin

whichtotemporarilyinstallthemodule,andyoumustbeable

toobservethetestdevice’sLEDindicator.

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Te s t p r o c e d u r e

Thefollowingisasuggestedacceptancetestingprocedure

usingSierraWireless’Watchersoftware:

Note: You can perform these

tests using appropriate AT

commands.

Test 1: Check power-up and initialization

1. Afterinstallingthemodule,startthetestsystem.

2. LaunchWatcher.

3. ChecktheLED—iftheLEDisoff,thereisaproblemwith

themoduleorwiththeconnectiontotheLED.

Test 2: Check version numbers

1. FromWatcher,selectHelp > About.

2. VerifythatthefirmwareversionintheAboutwindowis

correct.

3. ClosetheAboutwindow.

Ifthemodulefailseitherofthesetests,orisnotrecognizedby

Watcher:

1. Replacethemodulewithonethatisknowntowork

correctlyandrepeatthetests.

2. Ifthetestsaresuccessful,reinstalltheoriginalmoduleand

repeatthetests.

Ifthemodulestilldoesnotworkcorrectly,contactyour

accountmanager.

Certification testing

Note: Typically, you need to

pass certification testing of your

device with the integrated

module one time only.

WhenyouproduceahostdevicewithanembeddedSierra

Wirelessmodule,youmustobtaincertificationsforthefinal

productfromappropriateregulatorybodiesinthejurisdic‐

tionswhereitwillbedistributed.

Note: The module itself (MC57xx, MC87xx) has been certified

already—only the integrated device needs certification.

Thefollowingaresomeoftheregulatorybodiesfromwhich

youmayrequirecertification—itisyourresponsibilitytomake

surethatyouobtainallnecessarycertificationsforyour

productfromtheseorothergroups:

•FCC(FederalCommunicationsCommission—www.fcc.gov)

•IndustryCanada(www.ic.gc.ca)

•CSA(CanadianStandardsAssociation—www.csa.ca)

•FactoryMutual(FMGlobal—www.allendale.com)

Testing

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•UnderwritersLaboratoriesInc.(www.ul.com)

•(MC57xxonly)CDG(CDMADevelopmentGroup—

www.cdg.org)

•(MC87xxonly)GCF(GlobalCertificationForum—

gcf.gsm.org)outsideofNorthAmerica

•(MC87xxonly)PTCRB(PCSTypeCertificationReview

Board—www.ptcrb.com)inNorthAmerica

Production testing

Note: Production testing

typically continues for the life of

the product.

Eachassembleddeviceshouldbetestedtomakesurethe

moduleisinstalledcorrectlyandisfunctioningwithinnormal

operatingparameters.

Note: All Sierra Wireless embedded modules are fully factory-tested

to ensure they conform to published product specifications.

Ingeneral,productiontestingensuresthatthemoduleis

installedcorrectly(I/Osignalsarepassedbetweenthehostand

module),andtheantennaisconnectedandperformingto

specifications(RFtests).

Typicalitemstotestincludehostconnectivity,theRFassembly

(Txand/orRx,asappropriate),andtheaudioassembly(for

voice‐enabledmodules).

Note: The amount and types of tests to perform are your decision—

the tests listed in this section are guidelines only. Make sure that the

tests you perform exercise functionality to the degree that your

situation requires—this may include, for example, testing network

availability, any host device configuration issues, baseband testing

(GPIO / Audio, host / module connectors) and appropriate RF testing

(Tx and/or Rx).

Useanappropriateteststationforyourtestingenvironment

(seeTest requirementsonpage77forsuggestions)anduseAT

commandstocontroltheintegratedmodule.

Note: Your test location must be protected from ESD to avoid inter-

ference with the module and antenna(s) (assuming that your test

computer is in a disassembled state).

Also, consider using an RF shielding box as shown in the suggested

test equipment—local government regulations may prohibit

unauthorized transmissions.

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Suggested manual functional

test procedure

Thissectionpresentsaprocedureforperformingabasic

manualfunctionaltestonalaboratorybenchusingtheMini

CardandaMiniCardDevKit.Whenyouhavebecome

familiarwiththetestingmethod,useittodevelopyourown

automatedproductiontestingprocedures.

Suggested tests

Considerthefollowingtestswhenyoudesignyourproduction

testproceduresfordeviceswiththeMC57xxand/orMC87xx

installed.

•Visualcheckofthemodule’sconnectors,RFassemblies,and

audioassemblies(ifapplicable)

•Moduleisoperational

•USBconnectionisfunctional

•LEDisfunctional

•W_Disable#(modulepowerdown)

•Firmwarerevisioncheck

•Rxtestsonmainandauxiliarypaths

•Txtest

•Audio(microphoneandspeaker)tests(forvoice‐enabled

modules)

Suggested test plan procedure

Note: The following is a suggested outline for a relatively compre-

hensive test plan—you must decide which tests are appropriate for

your product.

This is not an exhaustive list of tests—you may wish to add additional

tests that more fully exercise the capabilities of your product.

Note: You may choose to create and run a test program that

automates portions of the test procedure.

UsinganappropriateDevKit‐basedteststation(asuggested

setupisdescribedinSuggested testing equipmentonpage97),

andreferringtotheappropriatestandardandextendedAT

commandreferences:

1. Visuallyinspectthemodule’sconnectorsandRFassem‐

bliesforobviousdefectsbeforeinstallingitinthetest

station.

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Note: To power-off the module,

drive W_Disable# low for the

required minimum period. See

State change: Power off / on on

page 23 for details.

2. Ensurethatthemoduleisturnedoffbeforebeginning

yourtests(setW_Disable#low).

3. IfusingLinux,determineifanyUSBdevicesarecurrently

connectedtothecomputer:

a. Openashellwindowandenterthecommandls /dev/

tty/USB*.

b. RecordthettyUSBnvaluesthatarereturned;theseare

thecurrentlyconnectedUSBdevices.Ifthecommand

returns“nosuchfileordirectory”,therearenodevices

currentlyconnected.

4. TestW_Disable#—Turnonthemodulebyletting

W_Disable#float(highimpedance).Dependingonyour

device,thismayjustrequirepoweringupthedevice.Refer

tothePCIExpressMiniCardDevKitQuickStartGuide

(Document2130705)formoredetails.

5. TestUSBfunctionality—CheckforUSBenumeration.

·(Windowssystems)TheDeviceManagershowsSierra

WirelessitemsunderthePorts‐(COM&LPT)entry.The

devicesshowndependonthemoduletype.For

example:

·MC87xx

·MC57xx

·(Linuxsystems)Enterthecommandls /dev/tty/USB*and

thenrecordandcomparetheresultswiththosefrom

Step3.IfthereareanynewttyUSBndevices,thenthe

modemhasenumeratedsuccessfully.(Thereshouldbe

threeorsevennewdevices,dependingonthemodule

type.)Forexample:

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·MC5725/MC5725V/MC8775/MC8775V/MC8780/

MC8781(withnootherUSBdevicesconnected):

(TheATportisthethirdnewenumerateddevice—/

dev/ttyUSB2.)

·MC5727/MC5727V/MC5728V/MC8785V/MC8790/

MC8790V/MC8791V/MC8792V(withoneotherUSB

devicealreadyconnectedandassignedtottyUSB1):

(TheATportisthefourthnewenumerateddevice—/

dev/ttyUSB4.)

6. SomemodulescauseaSierraWirelessNetworkAdapterto

appearinDeviceManager,asshownbelow.Disablethe

adaptertoallowentryofATcommandswhenperforming

diagnostictests.

a. Right‐clicktheSierraWirelessNetworkAdapterto

displaythecontextmenu.

b. ClickDisable.

MC57xx

7. Makesureyourmodemisconnectedandrunning,and

thenestablishcontactwiththemodule:

(Windowssystems)

Useaterminalemulation/communicationsprogramsuch

asMicrosoftHyperTerminal®toconnectovertheCOM

portreservedforATcommands(seelistingsinStep5):

a. StartHyperTerminal.

b. OntheFilemenu,selectConnectionDescription.The

ConnectionDescriptiondialogboxappears.

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c. Type“Sierra”intheNameboxandclickOK.The

ConnectTodialogboxappears.

d. ClickOKwithoutchanginganyofthedisplayedinfor‐

mation.TheConnectdialogboxappears.

e. ClickCancel.

Note: If necessary, use AT E1 to

enable echo.

f. TypeATZintheHyperTerminalwindow.Ifthe

connectionisestablished,themessageOKappears.

(Linuxsystems)

Useaterminalemulation/communicationsprogramsuch

asminicomtoconnectoverthedevicehandleforATcom‐

mands(seelistingsinStep5):

Note: If the command “minicom”

is not found, then use a different

program, or download minicom

and repeat this step. See

“Downloading and configuring

minicom for Linux systems” on

page 84 for details.

a. Startminicom:

·Firstuseofthemodem:Fromthecommandline,type

minicom‐s.‐‐alwaysshowsconfigurationmenu

·Subsequentuses:Fromthecommandline,type

minicom.

Theminicomconfigurationdetailsappearandthe

messageOKappearswhentheconnectionisestab‐

lished.

8. Displaythefirmwareversionusingthiscommand:

·MC57xx:AT+GMR

·MC87xx:AT!GVER

Exampleresponse:

·p2005000,0 [Aug 09, 2006 14:28:24],, VID: PID:

Characters5–6arethefirmwareversion(50inthisexam‐

ple).

9. TesttheLED—SettheLEDinblinkingmodeusingthis

command,thenvisuallyverifythattheLEDturnsoffand

on:

·MC57xx:AT!LED=0,1

·MC87xx:AT!DLEDorAT!LEDCTRL

10. UnlocktheextendedATcommandset,using:

·MC57xx:AT!OEM=176

·MC87xx:AT!ENTERCND

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11. Putthemoduleindiagnostic/factorytestmodeusing:

·MC57xx:AT!DIAG

·MC87xx:AT!DAFTMACT

12. (MC87xxonly)CommunicatewiththeUSIMusing+CPIN

or+CIMI.

Note: When performing RF

tests, use a test platform similar

to those shown in Figure 8-2

(page 98) and Figure 8-3

(page 99).

13. TestRFtransmission,ifdesired:

·MC57xx—SeeTestingRFtransmissionpath—MC57xx

onpage85.

·MC87xx—SeeTestingRFtransmissionpath—MC87xx

onpage86.

14. TestRFreception,ifdesired:

·MC57xx—SeeTestingRFReceivepath—MC57xxon

page88.

·MC87xx—SeeTestingRFReceivepath—MC87xxon

page90.

Note: The GPS receiver does

not need to be tested for UMTS

(MC878x) or CDMA (MC57xx)

modules supporting diversity

because RF connectivity is

validated by testing the diversity

receiver in Step 14.

15. (MC8775Vonly)TesttheGPSreceiver,ifdesired.See

TestingGPSReceiver—MC8775Vonpage93.

16. TestAudioloop‐back.SeeTestAudioLoop‐back—

MC5725V/MC5727V/MC5728V/MC8775V/MC8785V/

MC8790V/MC8791V/MC8792Vonpage94.

17. Finishtesting

a. IfthenetworkadapterwasdisabledinStep6,re‐

enableit(sameinstructions,exceptclickEnable

insteadofDisable).

Note: To power-off the module,

drive W_Disable# low for the

required minimum period. See

State change: Power off / on on

page 23 for details.

b. SettheW_Disable#signallowandconfirmthatthe

modulepowersdown:

·Windowssystems—TheSierraWirelessitemsunder

thePorts(COM&LPT)entryinDeviceManager

disappearasthemodulepowersoff.

·Linuxsystems—Enterthecommandls /dev/tty/USB*.

ThedevicesenumeratedinStep5willnotappearafter

themodulepowersoff.

Downloading and configuring minicom for Linux systems

Note: This procedure is for Ubuntu systems. If you are using a

different Linux distribution, use the appropriate commands for your

system to download minicom.

TodownloadandconfigureminicominaUbuntusystem:

Note: To install minicom, you

must have root access, or be

included in the sudoers list.

1. Downloadandinstallminicom—enterthefollowing

command:

sudo apt-get install minicom

Testing

Rev 1.9.1 Feb.09 Proprietary and Confidential 85

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2. Whenprompted,enteryouruserpasswordtobeginthe

downloadandinstallation.Whenminicomisinstalled,the

shellpromptappears.

3. Configureminicomtocommunicatewithyourmodem:

a. Startminicomwiththefollowingcommand:

minicom -s

4. Usethedown‐arrowkeytoselectthe“Serialportsetup”

option.

5. RefertoStep5onpage81toidentifythedevicefilehandle

(/dev/ttyUSBn)touseforATcommands.

6. IndicatethefilehandletouseforATcommands—enterA

andthenreplacetheserialdevicestringwiththeATfile

handle(forexample,/dev/ttyUSB4foranMC8792Vas

shownintheexampleinStep5onpage81).

7. PressEntertwice.

8. Usethedown‐arrowkeytoselectSave setup as dfl.

9. SelectExit.

Testing RF transmission path—MC57xx

Note: This procedure segment is performed in Step 13 of the

Suggested test plan procedure (page 84).

TotesttheDUT’stransmitterpath:

Note: This procedure describes

steps using the "Power Meter:

Gigatronics 8651A” (with Option

12 and Power Sensor 80701A).

1. Setupthepowermeter:

a. Makesurethemeterhasbeengivensufficienttimeto

warmup,ifnecessary,toenableittotakeaccurate

measurements.

b. Zero‐calibratethemeter.

c. EnableMAPmode.

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Note: These AT commands

generate a modulated test

signal.

2. PreparetheDUTusingthefollowingATcommands:

a. AT!OEM=176 (UnlockstheextendedATcommand

set)

b. AT!DIAG (Setmodemindiagnosticmode)

c. AT!CHAN=600,1 (PCSband,channel600)

AT!CHAN=384,0 (Cellularband,channel384)

Thepowermetershouldread‐100dBm,indicatingno

signal.

d. AT!TX=1 (Turnsontransmitter)

e. AT!ALLUP=1 (Enablesallupscondition)

Thepowermetershouldreadfrom0–24dBm,

dependingonyoursetup.

f. AT!TX=0 (Turnsofftransmitter)

3. Testlimits:

RuntenormoregoodDUTsthroughthistestproce‐

duretoobtainanominaloutputpowervalue.

·Applyatoleranceof±5to6dBtoeachmeasurement

(assumingagoodsetupdesign).

·Monitortheselimitsduringmass‐productionramp‐up

todetermineiffurtheradjustmentsareneeded.

Note: The MC57xx has a nominal output power of +24 dBm

1 dB.

However, the value measured by the power meter depends on the

test setup (RF cable loss, couplers, splitters) and the DUT design.

Note: When doing the same test over the air in an RF chamber,

values are likely to be significantly lower.

Testing RF transmission path—MC87xx

Note: This procedure segment is performed in Step 13 of the

Suggested test plan procedure (page 84).

Table8‐1containsparametersusedinthesuggestedtest

procedurethatfollows.

Testing

Rev 1.9.1 Feb.09 Proprietary and Confidential 87

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

TotesttheDUT’stransmitterpath:

Note: This procedure describes

steps using the "Power Meter:

Gigatronics 8651A” (with Option

12 and Power Sensor 80701A).

1. Setupthepowermeter:

a. Makesurethemeterhasbeengivensufficienttimeto

warmup,ifnecessary,toenableittotakeaccurate

measurements.

b. Zero‐calibratethemeter.

c. EnableMAPmode.

2. PreparetheDUTusingthefollowingATcommands:

a. AT!UNLOCK=”<lockCode>” (UnlocksextendedAT

commandset)

AT!ENTERCND

b. AT!DAFTMACT (Enterstestmode)

c. AT!DASBAND=<bandValue>

·SeeTable8‐1forappropriate<bandValue>values

d. AT!DASCHAN=<channel>

·SeeTable8‐1forappropriate<channel>values

e. (GSMmodeonly)

AT!DAGSTXFRAME=0, 1, 3000, 0

f. AT!DASTXON (Turnsonthetransmitpath)

g. (WCDMAmodeonly)

AT!DAWSTXCW=0(Useamodulatedcarrier)

Table 8-1: Test settings for MC87xx transmission path testing

Bands

Mode Test category 850 900 1800 1900 2100

WCDMA Band 22 29 15 9

Channel 4182 2812 9400 9750

GSM Band 18 10 11 12

Channel 190 65 697 661

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h. (WCDMAmodeonly)

AT!DASPDM=2, 455 (Setthepowerlevel,tunable

from0to511)

i. (WCDMAmodeonly)

AT!DAWSPARANGE=3(SettohighPAgainstate)

j. Takethemeasurement.

k. AT!DASTXOFF (Turnsoffthetransmitter)

3. Testlimits:

RuntenormoregoodDUTsthroughthistestproce‐

duretoobtainanominaloutputpowervalue.

·Applyatoleranceof±5to6dBtoeachmeasurement

(assumingagoodsetupdesign).

·Monitortheselimitsduringmass‐productionramp‐up

todetermineiffurtheradjustmentsareneeded.

·ForGSMmode,thetransmitsignalisbursted,sothe

transmitpowerwillappearaveragedonthepower

meterreading.

Note: The MC87xx has a nominal output power of +23 dBm

1 dB in

WCDMA mode. However, the value measured by the power meter is

significantly influenced (beyond the stated

1 dB output power

tolerance) by the test setup (host RF cabling loss, antenna efficiency

and pattern, test antenna efficiency and pattern, and choice of shield

box).

Note: When doing the same test over the air in an RF chamber,

values are likely to be significantly lower.

Testing RF Receive path—MC57xx

Note: This procedure segment is performed in Step 14 of the

Suggested test plan procedure (page 84).

TotesttheDUT’sreceivepath:

Testing

Rev 1.9.1 Feb.09 Proprietary and Confidential 89

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Note: This procedure describes

steps using the Agilent 8648C

signal generator—the Rohde &

Schwarz SML03 is shown for

reference only.

1. Setupthesignalgenerator:

Note: This example setup uses

a 200 kHz offset from band

center for testing using a

continuous wave—you can use

any appropriate baseband

frequency offset (for example,

100 kHz, 300 kHz, etc.).

If using a modulated signal, set

the frequency to band center

with no offset.

a. PresstheFrequencybuttontosetthefrequencyto

1960.200MHzforPCSband,Channel600,or

881.720MHzforCellularband,Channel384

b. PresstheAmplitudebuttontosettheamplitudeto

‐55.0dBm.

c. PresstheRFON/OFFbuttontoenableordisablethe

RFportofthesignalgenerator.

2. Readbackthepowerlevelfromthemainreceiver:

a. AT!OEM=176(UnlockstheextendedATcommandset)

b. AT!DIAG(SetsthemodeminDiagnosticmode)

c. AT!CHAN=600,1 (PCSband,channel600)

AT!CHAN=384,0(Cellularband,channel384)

d. AT!RX=1(Turnsonthemainreceiver)

e. AT!RXAGC?(Readsbackthepowerlevel,indBm,from

themainreceiver)

Responseexamples:

·RXAGC=0xFFFFFF33=‐77dBm(whensignal

generator’sRFportisOFF)

·RXAGC=0x0021=‐60dBm(whensignalgenerator’s

RFportisON)typical

Note: The dBm value displayed is calculated to reflect the power at

the input connector.

f. AT!RX2=1 (Turnsondiversityreceiver)

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g. AT!RX2AGC?(Readsbackthepowerlevel,indBm,

fromthediversityreceiver)

Responseexamples:

·RX2AGC=0xFFFFFF76=‐84dBm(whensignal

generator’sRFportisOFF)

·RX2AGC=0xFFFFFFC6=‐69dBm(whensignal

generator’sRFportisON)typical

h. AT!RX=0(Turnsoffmainreceiver)

i. AT!RX2=0(Turnsoffdiversityreceiver)

3. Testlimits

RuntenormoregoodDUTsthroughthistestproce‐

duretoobtainanominalreceivedpowervalue.

·Applyatoleranceof±5to6dBtoeachmeasurement

(assumingagoodsetupdesign).

·Makesurethemeasurementismadeatahighenough

levelthatitisnotinfluencedbyDUT‐generatedand

ambientnoise.

·TheSignalGeneratorpowerlevelshouldbeatleast

‐50dBm.

·Monitortheselimitsduringmass‐productionramp‐up

todetermineiffurtheradjustmentsareneeded.

Note: The value measured by the DUT depends on the test setup and

DUT design. Host RF cabling loss, antenna efficiency and pattern,

test antenna efficiency and pattern, and choice of shield box all signifi-

cantly influence the measurement.

Note: When doing the same test over the air in an RF chamber,

values are likely to be significantly lower.

Testing RF Receive path—MC87xx

Note: This procedure segment is performed in Step 14 of the

Suggested test plan procedure (page 84).

Table8‐2containsparametersusedinthesuggestedtest

procedurethatfollows.

Testing

Rev 1.9.1 Feb.09 Proprietary and Confidential 91

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

TotesttheDUT’sreceivepath:

Note: This procedure describes

steps using the Agilent 8648C

signal generator—the Rohde &

Schwarz SML03 is shown for

reference only.

1. Setupthesignalgenerator:

a. Settheamplitudeto:

·‐80dBm(WCDMAmode)

·‐60dBm(GSMmode)

b. Setthefrequencyforthebandbeingtested.See

Table8‐2forfrequencyvalues.

2. SetuptheDUT:

a. AT!UNLOCK=”<customerCode>”orAT!ENTERCND

b. AT!DAFTMACT

c. AT!DASBAND=<band>

·SeeTable8‐2for<band>values

d. AT!DASCHAN=<channel>

Table 8-2: Test settings for MC87xx Receive path testing

Bands

Mode Test category 850 900 1800 1900 2100

WCDMA Frequency1(MHz) 882.60 948.60 1961.2 2141.2

Band 22 29 15 9

Channel 4182 2812 9400 9750

GSM Frequency2(MHz) 881.667 948.067 1842.267 1960.067

Band 18 10 11 12

Channel 190 65 697 661

1 All values offset from actual center channel by +1.2 MHz

2 All values offset from actual center channel by +67 kHz

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·SeeTable8‐2for<channel>values

e. AT!DASLNAGAIN=0(setstheLNAtomaximumgain)

f. (WCDMAmode)

i. AT!DAWGAVGAGC=9400,0(forPCS1900,channel

9400asanexample)

(GSMmode)

i. AT!DAGSRXBURST=0 (settoreceiveburstedmode)

ii. AT!DAGGAVGRSSI=190,0 (forchannel190,for

example)

ThereturnedvalueistheRSSIindBm.

3. Testlimits:

RuntenormoregoodDUTsthroughthistestproce‐

duretoobtainanominalreceivedpowervalue.

·Applyatoleranceof±5to6dBtoeachmeasurement

(assumingagoodsetupdesign).

·Makesurethemeasurementismadeatahighenough

levelthatitisnotinfluencedbyDUT‐generatedand

ambientnoise.

·TheSignalGeneratorpowerlevelcanbeadjustedand

newlimitsfoundiftheradiatedtestneedsgreater

signalstrength.

·Monitortheselimitsduringmass‐productionramp‐up

todetermineiffurtheradjustmentsareneeded.

Note: The value measured from the DUT is significantly influenced by

the test setup and DUT design (host RF cabling loss, antenna

efficiency and pattern, test antenna efficiency and pattern, and choice

of shield box).

Note: Diversity is not available in

GSM mode.

4. TestdiversitypathsfortheMC8780(WCDMA850/

WCDMA2100),MC8781(WCDMA850/WCDMA1900),

orMC8785V/MC8790/MC8790V(WCDMA850/

WCDMA1900/WCDMA2100):

a. SetupthesignalgeneratorasinStep1.

b. SetuptheDUT:

Note: Setup of the DUT is the

same as in Step 2, except for a

change to AT!DAWGAVGAGC

and the addition of

AT!DAWSSCHAIN.

i. AT!UNLOCK=”<customerCode>”orAT!ENTERCND

ii. AT!DAFTMACT

iii. AT!DASBAND=<band>

·SeeTable8‐2for<band>values

iv. AT!DAWSSCHAIN=1(enablesthesecondarychain)

v. AT!DASCHAN=<channel>

·SeeTable8‐2for<channel>values

vi. AT!DASLNAGAIN=0(setstheLNAtomaximumgain)

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vii.AT!DAWGAVGAGC=9400,0,1(the‘1’indicatesthe

diversitypathisused)

c. TestthelimitsasinStep3.

Testing GPS Receiver—MC8775V

Note: The GPS receiver does not need to be tested for UMTS

(MC878x) or CDMA (MC57xx) modules supporting diversity because

RF connectivity is validated by testing the diversity receiver in Step 14

of the Suggested test plan procedure (page 84).

Note: This procedure segment is performed in Step 15 of the

Suggested test plan procedure (page 84).

Totestthecarrier‐to‐noiselevelfortheGPSreceivepath:

Note: This procedure describes

steps using the Agilent 8648C

signal generator—the Rohde &

Schwarz SML03 is shown for

reference only.

1. Setupthesignalgenerator:

a. Settheamplitudeto‐110dBm.

b. Setthefrequencyto1575.52MHz.Thisis100kHz

abovethecenterfrequencyforGPSandisneededto

accuratelymeasurethecarrier‐to‐noise(C/N)level.

2. SetuptheDUTusingthefollowingcommands:

a. AT!UNLOCK=”<customerCode>”

b. AT!DAFTMACT(Putsmodemintofactorytestmode)

c. AT!DAAGCTON(Queriespowerdifferencebetween

carriersignalandreceiver)

3. Testlimits:

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RuntenormoregoodDUTsthroughthistestproce‐

duretoobtainaveragedC/Nreadings.

·TheGPSreceiverrespondstosignallevelsfrom

‐130dBmto‐80dBm.

·MeasureC/NfivetimesforeachDUTtoobtainan

averagereadingat‐110dB.

·MakesuretheC/Nislessthan15dBwhenthesignal

generatorisoff.

·Allowfor±5dBofC/Nvariationtoidentifyany

problemsintheGPSreceivepath.

Test Audio Loop-back—MC5725V /

MC5727V / MC5728V / MC8775V /

MC8785V / MC8790V / MC8791V /

MC8792V

Note: This procedure segment is performed in Step 16 of the

Suggested test plan procedure (page 84).

Themicrophoneandspeakeraudiopathsforvoice‐enable

modulescanbetestedbyusinganaudioquantitythatissuited

toidentifyknownassemblyissues,andapplyinglimitsto

detectanyproblems.

Totesttheaudiopaths:

Note: This procedure describes

steps using the Keithley Audio

Analyzing DMM, 2016-P.

1. Setuptheaudioanalyzertogenerateaconstanttone:

a. ConnectaBNCcabletothe“SourceOutput”portat

therearpanel.

b. PresstheSourcebuttononthefrontpaneltosetthe

generatorto:

·Ampl=0.20V

·Impedance=50Ω

·Freq=1.000kHz

c. IfusingaSierraWirelessMiniCardDevKit,connect

thesignalsasfollows:

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i. ConnectthegeneratoroutputsignaltotheMIC1_P

(positive)andMIC1_N(negative)headerpins

locatedatCN18ontheDevKit.

ii. ConnecttheanalyzerinputsignaltotheSPK1_P

(positive)andSPK1_N(negative)headerpinslocated

atCN18ontheDevKit(seeFigure8‐1).For

additionaldetailsconcerninguseoftheDevKit,see

thePCIExpressMiniCardDevKitQuickStartGuide

(Document2130705).

d. Ifusingacustomhostplatform:

i. Connectthegeneratoroutputtothemicrophone

input(MIC,positiveandnegative)inthehost.

ii. ConnecttheanalyzerinputtotheSpeakeroutput

(SPK,positiveandnegative)inthehost.

Figure 8-1: Mini Card Dev Kit showing MIC / SPK pins.

2. SetuptheDUTusingthefollowingcommands:

(MC5725V/MC5727V/MC5728V)

a. AT!OEM=176 (UnlockstheextendedATcommand

set)

b. AT!DIAG (SetsmodeminDiagnosticmode)

c. AT!AVAUDIOLPBK=1 (Enablesaudioloop‐backmode)

d. AT!CODECGAIN=8000,8000,8000(Setscodecgainsin

theloopbackpathto+6dB(Tx),+6dB(Rx)and‐6dB

(SideTone).)

·Totalloopbackgain=Σ(codecgains)‐2dB

·Forthisexample,totalloopbackgain=+4dB

(MC8775V/MC8785V/MC8790V/MC8791V/MC8792V)

a. AT!UNLOCK=”<lockCode>” (UnlocksextendedAT

commandset)

b. AT!AVSETDEV=0,0,0 (Unmutesspeakerand

microphoneforaudioprofile0)

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c. AT!AVCODECSTG=0,FFFF (Setssidetonegainfor

audioprofile0)

3. Takemeasurementsusingthefollowingcommands(Note

thatthemodulehasagainof4dBinaudioloopback

mode.)

Note: Actual measured results

will vary, depending on your

testing setup.

a. PresstheACVbuttontomeasuretheAClevel.

·Expectedrange:1–2.5VAC

b. PresstheFREQbuttontomeasurethefrequency.

·Expectedvalue:1kHz

c. PresstheShiftandTHDbuttonsatthesametimeto

measurethetotalharmonicdistortion.

·Expectedvalue:<1%

d. Resettheaudioparameters:

·(MC5725V/MC5727V/MC5728V)

AT!AVAUDIOLPBK=0 (Disablesaudioloop‐back

mode)

·(MC8775V/MC8785V/MC8790V/MC8791V/

MC8792V)

AT!AVDEF (Setsconfigurableaudio

parameterstodefaultvalues)

Quality assurance testing

Note: QA is an ongoing process

based on random samples from

a finished batch of devices.

Thequalityassuranceteststhatyouperformonyourfinished

productsshouldbedesignedtoverifytheperformanceand

qualityofyourdevices.

Thefollowingaresometestingsuggestionsthatcanconfirm

thattheantennaisinterfacedproperly,andtheRFmoduleis

calibratedandperformstospecifications:

•Moduleregistrationoncellularnetworks

•Powerconsumption

•Originateandterminatedataandvoice(ifapplicable)calls

•Cellhand‐off

•Transmitterandreceivertests

•FER(FrameErrorRate)asanindicatorofreceiversensi‐

tivity/performance

•Channelandaveragepowermeasurementstoverifythat

thedeviceistransmittingwithinproductspecifications

•RFsensitivitytests

•MC57xx‐specific:

·Waveformqualitytests(calculatingthe“rho”parameter)

tocomparetheCDMAsignal’spowerdistribution

againsttheidealdistribution—rhomustbe>0.97with

maxfreqerrorof0.5topass.

·FERtesting—testthereceiversensitivityforconditions

ofminimumcellpower.FERcanbemeasuredforthe

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specifiedreceiversensitivityof‐104dBm.Theobjective

ofthistestistodetermineiftheFERmeasurediswithin

theacceptablelimitsforthespecifiedreceiversensitivity

ofthemodule.UnliketheFERtestsperformedduring

productiontesting,thistestdeterminesthereceiver

performancewithouttheinfluenceofthenoisefactor

(AWGN),butwithextremelylowcellpower.The

reportedFERandtheconfidencelevelmustbe<1%and

>95%respectivelyforthetesttobeconsideredapass.

•MC87xx‐specific:

·RFsensitivitytesting:BER/BLERfordifferentbands

andmodes

·Transmitterandreceivertests(basedonrelevantsections

ofthe3GPPTS51010and3GPP34121documents)

Suggested testing equipment

Toperformproductionandpost‐productiontests,yourequire

appropriatetestingequipment.

Figure8‐2showsasuggestedteststationforusewithdevices

incorporatingeithertheMC57xxortheMC87xx.

Intheteststationasshown,atestcomputercoordinates

testingbetweenthehostdevicewithanintegratedmoduleand

themeasurementequipment.Ifthetestcomputerdoesnot

havedirectaccesstothemodule,thenthehostdevicemust

havecustomsoftwaretoforwardinstructionsfromthetest

computertothemodule.

Thissuggestedstationsetupincludes:

•Audioanalyzer—toevaluateTx

•Powermeter—toevaluatecurrentconsumptionforTxand

Rxinvariousmodes

•Signalgenerator—toevaluateRx

Whenusingthissetup,youcanallowthesignalgeneratorto

runcontinuouslythroughouttheproductiontesting

procedure.

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Figure 8-2: Recommended production test setup

Testing

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Figure 8-3: Recommended Dev Kit test setup

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A: Antenna Specification

Thisappendixdescribeselectricalperformancecriteriafor

mainpath,diversitypath,andGPSantennasusedwith

MC57xxmodules(CDMAnetworks)andMC87xxmodules

(GSM/EDGE/UMTSnetworks).

Required antennas

TableA‐1listsminimumrequiredantennatypesforeach

moduleandthemaximumantennagain,includingcableloss,

inamobile‐onlyexposurecondition.

Note: If your system uses both the MC87xx and MC57xx, the five-

band antenna can be used for both modules. However, improved

antenna performance may be attained if a dual-band main-path

antenna is designed and optimized specifically for the MC57xx.

Table A-1: Required antennas and maximum antenna gain by module type

Antenna type (minimum) Maximum antenna gaina

Module Main Diversity / GPS Cellular band

(dBi) PCS band

(dBi)

MC5725

2-band (Cellular / PCS) 3-band (Cellular / PCS / GPS)

5.1 4.15

MC5725V 5.1 4.15

MC5727 5.1 4.15

MC5727V 5.1 4.15

MC5728 TBD TBD

MC5728V TBD TBD

MC8775 N.America: 2-band

(Cellular/PCS)

Eur/Asia: 3-band

World: 5-band

n/a

5 4

MC8775V N.America: 2-band

(Cellular/PCS)

Eur/Asia: 3-band

World: 5-band

1-band (GPS) 5 4

MC8780 Eur/Asia: 3-band 3-band (Cellular / IMT / GPS) 5 4

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Frequency bands

TableA‐2andTableA‐3summarizethefrequencybandsthat

mustbesupportedbymain,diversity,andGPSantennasfor

CDMAandUMTSmodules.

MC8781 N.America: 2-band

(Cellular / PCS) 3-band (Cellular / PCS / GPS) 5 4

MC8785V

MC8790

MC8790V

MC8791V

MC8792V

N.America: 2-band

(Cellular/PCS)

Eur/Asia: 3-band

World: 5-band

N.America: 3-band (Cell / PCS / GPS)

Eur/Asia: 3-band (Cell / IMT / GPS)

World: 4-band (Cell / IMT / PCS / GPS)

5 4

a. Gain limits in this table are as reported on FCC grants for each module, for consideration against RF exposure and ERP / EIRP limits.

Table A-1: Required antennas and maximum antenna gain by module type

Antenna type (minimum) Maximum antenna gaina

Module Main Diversity / GPS Cellular band

(dBi) PCS band

(dBi)

Table A-2: Supported frequency bands (CDMA modules)

Module Band Antenna Mode Frequency

range

MC57xx Cell Main /

Diversity (Rx) Tx 824–849

Rx 869–894

PCS Main /

Diversity (Rx) Tx 1850–1910

Rx 1930–1990

GPS Diversity or separate

GPS antenna Rx 1574–1576

Table A-3: Supported frequency bands (UMTS modules)

Main antenna Diversity / GPS antenna

Module 850 900 1800 1900 2100 GPS 850 900 1900 2100

MC8775 YYYYY

MC8775V Y Y Y Y Y Ya

MC8780 Y Y Y Y Y YbY Y

MC8781 Y Y Y Y Y YbY Y

MC8785V Y Y Y Y Y YbY Y Y

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MC8790 Y Y Y Y Y YbY Y Y

MC8790V Y Y Y Y Y YbY Y Y

MC8791V Y Y Y Y Y YbY

MC8792V Y Y Y Y Y YbY Y Y

a. GPS supported on separate GPS antenna

b. GPS supported on diversity antenna

Table A-4: Supported frequency bands (main / diversity / GPS antennas)

Frequency band Frequency

range (MHz) Supported network types

GSM GPRS EDGE UMTS

Main Antenna

850 (North America) Tx: 824–849

Rx: 869–894 Y Y Y Y

900 (Europe) Tx: 880–915

Rx: 925–960 Y Y Y

1800 (Europe) Tx: 1710–1785

Rx: 1805–1880 Y Y Y

1900 (North America) Tx: 1850–1910

Rx: 1930–1990 Y Y Y Y

2100 (Europe) Tx: 1920–1980

Rx: 2110–2170 Y

Diversity / GPS Antenna (if GPS is enabled)

UMTS850 (North America) Rx: 869-894 Y

UMTS1900 (PCS North America) Rx: 1930–1990 Y

UMTS2100 (IMT Europe) Rx: 2110–2170 Y

GPS (Worldwide) Rx: 1574–1576

Secondary (GPS) Antenna

GPS (Worldwide) Rx: 1574–1576

Table A-3: Supported frequency bands (UMTS modules)

Main antenna Diversity / GPS antenna

Module 850 900 1800 1900 2100 GPS 850 900 1900 2100

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Antenna design

Designofmainpath,diversitypath,andGPSantennasis

determinedbythehostdeviceOEMandtheirdesignated

antennadesigner.

Note: Modems that support diversity and GPS can use the same

secondary (diversity) antenna for both.

Note: Antennas should be designed BEFORE the industrial design is

finished to make sure that the best antennas can be developed.

General antenna design requirements

InadditiontopassingthespecifictestsdescribedinTesting

beginningonpage106,themainpathanddiversity/GPSpath

antennasshouldsatisfythefollowingrequirements:

•Antennaimpedanceatfeedingterminal=50Ω(Asimple

matchingcircuitwithsixorfewercomponentsisacceptable

atthefeedingterminal.)

•Nominallyomni‐directionalradiationpatterninthe

azimuthplane

Main antenna design requirements

InadditiontopassingthespecifictestsdescribedinTesting

beginningonpage106,themainpathantennashouldsatisfy

thefollowingrequirements:

•Musthandle2WRFpoweronlowbandsand1Wonhigh

bands

Measurethepowerusingthefollowingcriteria:

•Measurepowerenduranceoveraperiodof4hours

(estimatedtalktime)usinga2WCWsignal—setthe

frequencyoftheCWtestsignaltothemiddleofthePCSTx

band(1880MHzforPCS).

•Visualinspectionmustprovethereisnodamagetothe

antennastructureandmatchingcomponents.

•VSWR/TIS/TRPmeasurementstakenbeforeandafterthis

testmustshowsimilarresults.

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Diversity antenna design requirements

(MC57xx / MC8780 / MC8781 / MC8785V /

MC8790 / MC8790V / MC8791V /

MC8792V)

Antennadiversityisrequiredforenduserperformanceand

enhancedcoverageonCDMAnetworks(800MHz/

1900MHz)forMC57xx,andonUMTSnetworks(850MHz/

1900MHz/2100MHz)forMC8780/MC8781/MC8785V/

MC8790/MC8790V/MC8791V/MC8792V.(SeeTableA‐3on

page102forUMTSdiversitysupportbymodule.)

InadditiontopassingthespecifictestsdescribedinTesting

beginningonpage106,thediversitypathantennashould

satisfythefollowingrequirement:

•Receiveperformance,measuredbyforwardlink

throughput,mustbe0to3dBbetterthanasingleantenna

Performance goals

Whendesigningtheantennasystem,considerthefollowing

performancegoals:

•0dBgainantenna(orbetter)

•Diversityantennareceiveperformancetobesimilarto

primaryantenna

•Separationdistanceorpolarityseparationtoachieve

diversityantennaisolationof10db(minimum)—otherwise

thereceiveantennapicksuptoomuchpowerradiating

fromtheprimaryantenna

GPS antenna design requirements

(MC57xx / MC8775V / MC878x)

AsecondantennaisrequiredtoaccessGPSfunctionality—if

themodemalsosupportsdiversity,thesameantennacanbe

used.

InadditiontopassingthespecifictestsdescribedinTesting

beginningonpage106,thediversitypathantennashould

satisfythefollowingrequirements:

•Fieldofview(FOV):Omni‐directionalinazimuth,‐45°to

+90°inelevation

•Polarization(averageGv/Gh):>0dB.Verticallinearpolar‐

izationissufficient(noneedtooptimizeforcircularpolar‐

ization)

•Freespaceaveragegain(Gv+Gh)overFOV:>‐6dBi

(preferably>‐3dBi).Note:Averagegainisthesumof

averagevalues(Gv+Gh)wherebothGvandGhare

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measured(andaveraged)over‐45°to+90°inelevationand

±180°inazimuth.

•Maximumgainanduniformcoverageinthehighelevation

angleandzenith.Gainintheazimuthplaneisnotdesired.

•Average3Dgain:>‐5dBi

•TypicalVSWR:<2:1

•Polarization:anyotherthanLHCP(left‐handcircular

polarized)isacceptable

ThesamedesignproceduresoutlinedinInterferenceand

sensitivityonpage41applytotheGPSpathaswell.

Testing

Theperformancespecificationsdescribedinthissectionare

validwhiletheantennaismountedinthehostdevicewiththe

antennafeedcableroutedinitsfinalapplicationconfiguration.

Thefollowingguidelinesapplytothetestsinthissection:

•Performelectricalmeasurementsatroomtemperature

(+20°Cto+26°C)unlessotherwisespecified

•Formainanddiversitypathantennas,makesurethe

antennas(includingcontactdevice,coaxialcable,

connectors,andmatchingcircuitwithnomorethansix

components,ifrequired)havenominalimpedancesof50Ω

acrossthefrequencybandsinTableA‐4.

•Alltests(exceptisolation/correlationcoefficient)—testthe

mainordiversityantennawiththeotherantennatermi‐

nated.

•Anymetallicpartoftheantennasystemthatisexposedto

theoutsideenvironmentneedstomeettheelectrostatic

dischargetestsperIEC61000‐4‐2(conducteddischarge

+8kV).

•Thefunctionalrequirementsoftheantennasystemare

testedandverifiedwhiletheMiniCardantennais

integratedinthehostdevice.

Note: Additional testing, including active performance tests,

mechanical, and accelerated life tests can be discussed with Sierra

Wireless’ engineering services. Contact your Sierra Wireless repre-

sentative for assistance.

Voltage Standing Wave Ratio (VSWR)

MeasureVSWRforeachantenna(main,diversity)usingthe

followingcriteria:

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•MeasureVSWRinfreespaceattheantenna’scoaxial

connector(feedingterminal)whentheantennaisinstalled

inthehostdevicewiththecableroutedtotheMiniCard

slot.

•UseanHP8753Enetworkanalyzer(orequivalent).

Table A-5: VSWR (Voltage Standing Wave Ratio)

Frequency

(MHz) Typical VSWR Worst-case

VSWR at band

edges

Notes

Main antenna

824–849 2.5:1 850-band Tx

869–880 3.5:1 850-band Rx excluding

part inside 900-band Tx

880–915 2.5:1 900-band Tx

925–960 3.5:1 900-band Rx

1710–1785 2.5:1 1800-band Tx

1805–1850 3.5:1 1800-band Rx excluding

part inside 1900-band Tx

1850–1910 2.5:1 1900-band Tx

1920–1980 2.5:1 2100-band Tx and part of

1900-band Rx

1980–1990 3.5:1 Part of 1900-band Rx

outside of 2100-band Tx

2110–2170 3.5:1 2100-band Rx

Diversity / GPS antenna

869–894 < 3:1 <3.5:1

Preferable to have input

VSWR < 2:1

1930–1990 < 3:1 <3.5:1

2110–2170 < 3:1 <3.5:1

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Efficiency

TableA‐6detailstheminimumtotalradiatedefficiencyfor

mainand,ifsupported,diversityantennas.

Antenna-to-antenna isolation

(MC57xx/MC8775V/MC878x)

Useanetworkanalyzertomeasureisolationbetweenthemain

andsecondaryantennapairsovertheoperatingTx/Rx

frequencybandsdescribedinTableA‐4onpage103.

TableA‐7detailstheminimumisolationallowedoverthe

variousfrequencybandsfortheapplicableantennapairs.

Whenyouperformthesetests:

•Iftheantennascanbemoved,testallpositionsforboththe

mainandsecondaryantennas.

•Collectworst‐caseisolationdata.

•Makesureallotherwirelessdevices(BluetoothorWLAN

antennas,etc.)areturnedOFFtoavoidinterference.For

details,seeInterferencefromotherwirelessdeviceson

page41.

Note: System performance below the minimum isolation specification

could cause damage to the module, resulting in below-average

system performance.

Table A-6: Minimum total radiated efficiencya

a. Total efficiency is measured at the RF connec-

tor. It includes mismatch losses, losses in the

matching circuit, and antenna losses.

Mode Main Diversity

Transmit (Tx) 50% n/a

Receive (Rx) 30% 25%

Table A-7: Minimum Main–Secondary antenna isolation

Antenna pair

Isolation (dB)

850 / 900 band GPS band DCS / PCS /

UMTS band

Main / Diversity (Tx and Rx) 8 (cell) 8 (PCS / UMTS)

Main (Tx) / GPS 15 15 15

Antenna Specification

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Peak gain and radiation patterns

TableA‐8describesthepeakandaverageantennagainlimits

forthemainpathanddiversitypathantennas.

Note: Sierra Wireless recommends using antenna efficiency as the

primary parameter for evaluating the antenna system.

Antenna Peak Gain is not a good indication of antenna performance

when integrated with a host device; the antenna does NOT provide

omni-directional gain patterns. Peak Gain performance can be

affected by parameters such as antenna size, location, design type,

etc. The antenna gain patterns remain fixed unless one or more of

these parameters changes.

Table A-8: Peak and average antenna gain

Antenna Peak gaina

a. Vertical / horizontal polarizations

Main > +1 dBi > -3 dBi

Diversity > -3 dBi > -6 dBi

Fading correlation coefficient

(MC57xx/MC878x)

Measurethefading(envelope)correlationcoefficientbetween

themainanddiversityantennasovertheoperatingRx

frequencybandsdescribedinTableA‐4.

Themaximumallowedfadingcorrelationcoefficientoverany

ofthebandsis0.5.

Average gainb

b. Vertical / horizontal polarizations combined, over ±45° in eleva-

tion and ±180° in azimuth

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Rev 1.9.1 Feb.09 Proprietary and Confidential 111

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B: Regulatory Information

Important notice

Becauseofthenatureofwirelesscommunications,trans‐

missionandreceptionofdatacanneverbeguaranteed.Data

maybedelayed,corrupted(i.e.,haveerrors)orbetotallylost.

Althoughsignificantdelaysorlossesofdataarerarewhen

wirelessdevicessuchastheSierraWirelessmodemareusedin

anormalmannerwithawell‐constructednetwork,theSierra

Wirelessmodemshouldnotbeusedinsituationswherefailure

totransmitorreceivedatacouldresultindamageofanykind

totheuseroranyotherparty,includingbutnotlimitedto

personalinjury,death,orlossofproperty.SierraWirelessand

itsaffiliatesacceptnoresponsibilityfordamagesofanykind

resultingfromdelaysorerrorsindatatransmittedorreceived

usingtheSierraWirelessmodem,orforfailureoftheSierra

Wirelessmodemtotransmitorreceivesuchdata.

Safety and hazards

DonotoperateyourMC57xx/MC87xxmodem:

•Inareaswhereblastingisinprogress

•Whereexplosiveatmospheresmaybepresentincluding

refuellingpoints,fueldepots,andchemicalplants

•Nearmedicalequipment,lifesupportequipment,orany

equipmentwhichmaybesusceptibletoanyformofradio

interference.Insuchareas,theMC57xx/MC87xxmodem

MUSTBEPOWEREDOFF.Otherwise,theMC57xx/

MC87xxmodemcantransmitsignalsthatcouldinterfere

withthisequipment.

Inanaircraft,theMC57xx/MC87xxmodemMUSTBE

POWEREDOFF.Otherwise,theMC57xx/MC87xxmodem

cantransmitsignalsthatcouldinterferewithvariousonboard

systemsandmaybedangeroustotheoperationoftheaircraft

ordisruptthecellularnetwork.Useofacellularphoneinan

aircraftisillegalinsomejurisdictions.Failuretoobservethis

instructionmayleadtosuspensionordenialofcellular

telephoneservicestotheoffender,orlegalactionorboth.

Someairlinesmaypermittheuseofcellularphoneswhilethe

aircraftisonthegroundandthedoorisopen.TheMC57xx/

MC87xxmodemmaybeusednormallyatthistime.

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Important compliance

information for North American

users

TheMC57xx/MC87xxmodemhasbeengrantedmodular

approvalformobileapplications.Integratorsmayusethe

MC57xx/MC87xxmodemintheirfinalproductswithout

additionalFCC/IC(IndustryCanada)certificationifthey

meetthefollowingconditions.Otherwise,additionalFCC/IC

approvalsmustbeobtained.

1. Atleast20cmseparationdistancebetweentheantenna

andtheuser’sbodymustbemaintainedatalltimes.

2. TocomplywithFCC/ICregulationslimitingboth

maximumRFoutputpowerandhumanexposuretoRF

radiation,themaximumantennagainincludingcableloss

inamobile‐onlyexposureconditionmustnotexceedthe

levelsdetailedinTableA‐1,“Requiredantennasand

maximumantennagainbymoduletype,”onpage101.

3. TheMC57xx/MC87xxmodemanditsantennamustnot

beco‐locatedoroperatinginconjunctionwithanyother

transmitterorantennawithinahostdevice.

4. Alabelmustbeaffixedtotheoutsideoftheendproduct

intowhichtheMC57xx/MC87xxmodemisincorporated,

withastatementsimilartothefollowing:

·ForMC5725/MC5725V:

ThisdevicecontainsFCCID:N7N‐MC5725

Thisequipmentcontainsequipmentcertifiedunder

IC:2417C‐MC5725

·ForMC5727/MC5727V:

ThisdevicecontainsFCCID:N7N‐MC5727

Thisequipmentcontainsequipmentcertifiedunder

IC:2417C‐MC5727

·ForMC5728/MC5728V:

ThisdevicecontainsFCCID:N7N‐MC5728

Thisequipmentcontainsequipmentcertifiedunder

IC:2417C‐MC5728

·ForMC8775/MC8775V:

ThisdevicecontainsFCCID:N7NMC8775

Thisequipmentcontainsequipmentcertifiedunder

IC:2417C‐MC8775

·ForMC8780:

ThisdevicecontainsFCCID:N7NMC8780

·ForMC8781:

ThisdevicecontainsFCCID:N7NMC8781

Thisequipmentcontainsequipmentcertifiedunder

IC:2417C‐MC8781

Regulatory Information

Rev 1.9.1 Feb.09 Proprietary and Confidential 113

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·ForMC8785V:

ThisdevicecontainsFCCID:N7NMC8785

Thisequipmentcontainsequipmentcertifiedunder

IC:2417C‐MC8785

·ForMC8790/MC8790V:

ThisdevicecontainsFCCID:N7NMC8790

Thisequipmentcontainsequipmentcertifiedunder

IC:2417C‐MC8790

·ForMC8792V:

ThisdevicecontainsFCCID:N7NMC8792

Thisequipmentcontainsequipmentcertifiedunder

IC:2417C‐MC8792

5. Ausermanualwiththeendproductmustclearlyindicate

theoperatingrequirementsandconditionsthatmustbe

observedtoensurecompliancewithcurrentFCC/ICRF

exposureguidelines.

TheendproductwithanembeddedMC57xx/MC87xx

modemmayalsoneedtopasstheFCCPart15unintentional

emissiontestingrequirementsandbeproperlyauthorizedper

FCCPart15.

Note:Ifthismoduleisintendedforuseinaportabledevice,

youareresponsibleforseparateapprovaltosatisfytheSAR

requirementsofFCCPart2.1093andICRSS‐102.

EU regulatory conformity

SierraWirelessherebydeclaresthattheMC8775,MC8775V,

MC8780,MC8781,MC8785V,MC8790,MC8790V,MC8791V,

andMC8792Vmodemsconformwithallessentialrequire‐

mentsofDirective1999/5/EC.

TheDeclarationofConformitymadeunderDirective1999/5/

ECisavailableforviewingatthefollowinglocationintheEU

community:

SierraWireless(UK),Limited

LakesideHouse

1FurzegroundWay,StockleyParkEast

Uxbridge,Middlesex

UB111BD

England

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C: Acronyms and Definitions

Table C-9: Acronyms and definitions

Acronym or term Definition

AGC Automatic Gain Control

BER Bit Error Rate - a measure of receive sensitivity

BLER Block Error Rate

Call Box Base Station Simulator - Agilent E8285A or 8960, Rohde &

Schwarz CMU200

CDMA Code Division Multiple Access

dB Decibel = 10 x log10 (P1/P2)

P1 is calculated power; P2 is reference power

Decibel = 20 x log10 (V1/V2)

V1 is calculated voltage, V2 is reference voltage

dBm Decibels, relative to 1 mW - Decibel(mW) = 10 x log10 (Pwr (mW)/

1mW)

DUT Device Under Test

EDGE Enhanced Data rates for GSM Evolution

EM Embedded Module

ESD ElectroStatic Discharge

FER Frame Error Rate - a measure of receive sensitivity

GPRS General Packet Radio Services

GPS Global Positioning System

GSM Global System for Mobile communications

Hz Hertz = 1 cycle/second

inrush current Peak current drawn when a device is connected or powered on

IS-2000 3G radio standards for voice and data (CDMA only)

IS-95 2G radio standards targeted for voice (cdmaONE)

LDO Low Drop Out - refers to linear regulator

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MC5725 / MC5725V /

MC5727 / MC5727V /

MC5728 / MC5728V

Sierra Wireless Mini Cards used on CDMA networks

MC57xx Any of the following CDMA Mini Cards: MC5725 / MC5725V /

MC5727 / MC5727V / MC5728 / MC5728V

MC8775 / MC8775V /

MC8780 / MC8781 /

MC8785V / MC8790 /

MC8790V / MC8791V /

MC8792V

Sierra Wireless Mini Cards used on GSM / UMTS networks

MC87xx Any of the following GSM / UMTS Mini Cards: MC8775 / MC8775V /

MC8780 / MC8781 / MC8785V / MC8790 / MC8790V / MC8791V /

MC8792V

MHz MegaHertz = 10E6 Hertz (Hertz = 1 cycle/second)

MIO Module Input/Output

MPE Maximum Permissible Exposure — the level of radiation to which a

person may be exposed without hazardous effect or adverse

biological changes

OTA Over-The-Air or Radiated through the antenna

PCS Personal Communication System - PCS spans the 1.9 GHz radio

spectrum

RF Radio Frequency

RMS Root Mean Square

SA Selective Availability

Sensitivity (Audio) Measure of lowest power signal that the receiver can measure

Sensitivity (RF) Measure of lowest power signal at the receiver input that can

provide a prescribed BER / BLER / SNR value at the receiver

output.

SIM Subscriber Identity Module

SNR Signal to Noise Ratio

SOF Start of Frame - a USB function

UART Universal Asynchronous Receiver Transmitter

UDK Universal Development Kit (PCI Express Mini Card Dev Kit)

UMTS Universal Mobile Telecommunications System

Table C-9: Acronyms and definitions

Acronym or term Definition

Acronyms and Definitions

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USB Universal Serial Bus

USIM Universal Subscriber Identity Module

VCC3.3 3.3 V supply voltage

WCDMA Wideband Code Division Multiple Access — In this document, the

term “UMTS” is used instead of “WCDMA”.

XIM In this document, XIM is used as part of the contact identifiers for

the USIM interface (XIM_VCC, XIM_CLK, etc.).

Table C-9: Acronyms and definitions

Acronym or term Definition

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Index

Numerics

CDMAStandard13

acceptancetests77

acronymsanddefinitions115–117

airplanemode19

anechoicchamber,OTAtesting43

antenna

connectionandmountingpoints39

connectionconsiderations39

custom,considerations40

designrequirements,diversityantenna105

designrequirements,general104

designrequirements,GPS105

designrequirements,mainantenna104

diversityantenna,disabling41

diversity,MC57xx105

frequencybands,supported102

GPS,MC8775V/MC8780/MC8781105

limit,matchingcoaxialconnections39

location,considerations40

matching,considerations40

maximumcableloss39

specification101–109

testing106

antennas

designchecklist75

frequencybandssupported,byantennatype

103

frequencybandssupported,MC57xx102

frequencybandssupported,MC87xx102

required,bymoduletypeandgain101

ATcommands

3GPPspecification,details13

extended,MC57xx68

extended,MC87xx69

extended,overview68

lowpowermode,setting20

standard,MC57xx(referencedocument)13

standard,MC87xx(referencedocument)15

ATcommands,extended

MC57xx,reference13

MC87xx,reference15

ATcommands,standard

MC57xx,reference13

MC87xx,reference15

audio

features,summary51

functions,host‐controlled58

functions,module‐controlled58

functions,responsiblecodecs52

interface51–59

pathmixing,host‐controlled59

pathswitching,host‐controlled58

PCMdigital,signalinterface58

primary,signalinterface57

signalinterface57

systemblockdiagram,MC5725V52

systemblockdiagram,MC5727V52

systemblockdiagram,MC8775V54

audiomodes,supported55

audiopassband51

audiopassband,RxandTx57

automaticgaincontrol(AGC)

module‐controlled58

BER(BitErrorRate)45

biterrorrate(BER)

measureofsensitivity,MC87xx45

cableloss

antenna,maximum39

capacitance

inrushcurrent,effecton25

capacitors

withUSIM68

withXIM_DATA/XIM_CLK67

carkitaudiomode51

carkitmode

echocancellation56

CDMA

1XStandard13

cellularband

RFparameters,MC57xx37

certificationtests78

checklist,design75

CnS

MC57xxreference13

MC87xxreference15

notificationissued,statechange

temperature23

voltage21

codec

foraudiofunctions52

comfortnoise

module‐controlled58

communications,hosttomodem

designchecklist76

connection

grounding39

connectors,required

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EDGEmating(52‐pin)12

host‐module12

RF,Hirose12

USIM12

current

consumption27–35

usagemodels35

peakinrushcurrent,calculation25

specifications,MC57xx28

specifications,MC8775/75V28–30

specifications,MC8780/8130–31

specifications,MC8785V31–32,32–33

current,consumption27

DCS1800

RFparameters,MC87xx37

sensitivity,testresults48

desense.SeeRF

designchecklist

antennas75

componentplacement75

EMI/ESD76

host/modemcommunications76

power75

thermal76

device

positioning,sensitivitytesting45

disconnected,modulepowerstate19

diversityantenna

disabling41

DTMF

codec52

module‐controlled58

echocancellation

audiofeature51

codec52

details56

module‐controlled58

support,allmodes56

EDGEconnector,manufacturers12

efficiency

testcriteria108

EGSM900

RFparameters,MC87xx37

sensitivity,testresults47

electrostaticdischarge.SeeESD

ESD

designchecklist76

protectionrequirements18

testingtechniquesdocument(IEC‐61000‐4‐2)14

fadingcorrelationcoefficient

testcriteria109

FCC

regulations,relevantsection13

FER(FrameErrorRate)45

filtering

highpass/slopefiltering,module‐controlled58

filteringstages,audio51

filtering,RFdesense43

FIRfiltering

audiofeature51

codec52

module‐controlled58

frameerrorrate(FER)

measureofsensitivity,MC57xx45

frequencybands,supported102

gain

codec52

distribution,audio56

limits,adjustable51

gain,antenna

testcriteria109

GPSband

RFparameters,MC57xx37

RFparameters,MC87xx38

GPSsensitivity

conducted,RFparameter,MC87xx37

grounding

connectionconsiderations39

GSM1900

sensitivity,testresults48

GSM850

RFparameters,MC87xx37

sensitivity,testresults47

handsetaudiomode51

handsetmode

echocancellation56

handshaking

USB62

headsetaudiomode51

headsetmode

echocancellation56

Host⁄Moduleinterface61–71

I/Orisetimerequirements67

impedance

module‐antenna41

USIM67

Index

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inrushcurrents

description24

hostpowersupplyapplied25

model,MC57xx24

model,MC87xx25

W_Disable#deasserted25

interface

audiosignal57

interference

devicegenerated42

powersupplynoise41

wirelessdevices41

isolation

testcriteria108

LED

example65

states64

lowpowermode

setting,ATcommands20

statechangefromnormal,temperature23

statechangefromnormal,voltage21

statechangetonormal,temperature23

statechangetonormal,voltage21

temperaturetriggerlevels22

voltagetriggerlevels20

lowpower,modulepowerstate19–20

MC5725

ATcommands,extended68

ATreference(extended)13

ATreference(standard)13

CnSreference13

networkssupported11

productspecification14

RFparameters(MC57xx)37

MC5725V

ATcommands,extended68

audiointerface,supported51

productspecification14

RFparameters(MC57xx)37

MC5727

ATreference(extended)13

ATreference(standard)13

CnSreference13

RFparameters(MC57xx)37

MC5727V

ATcommands,extended68

audiointerface,supported51

RFparameters(MC57xx)37

MC57xx

currentspecifications28

sensitivitytestresults46

sensitivity,defined45

MC8755

CnSreference,andMC87xx15

MC8755V

CnSreference,andMC87xx15

MC8765

CnSreference,andMC87xx15

MC8775

ATcommands,extended,andMC87xx69

ATreference(extended),andMC87xx15

ATreference(standard),andMC87xx15

CnSreference,andMC87xx15

currentspecifications28–30

networkssupported11

productspecification14

RFparameters37

MC8775V

ATcommands,extended,andMC87xx69

ATreference(extended),andMC87xx15

ATreference(standard),andMC87xx15

audiointerface,supported51

CnSreference,andMC87xx15

currentspecifications28–30

networkssupported11

pins,connector(2.6V)61

productspecification14,15

RFparameters37

MC8780

ATcommands,extended,andMC87xx69

ATreference(extended),andMC87xx15

ATreference(standard),andMC87xx15

currentspecifications30–31

networkssupported11

powerconsumption34

productspecification14

RFparameters37

MC8781

ATcommands,extended,andMC87xx69

ATreference(extended),andMC87xx15

ATreference(standard),andMC87xx15

currentspecifications30–31

networkssupported11

powerconsumption34

productspecification14

RFparameters37

MC8785V

currentspecifications31–32,32–33

networkssupported11

MC87xx

sensitivitytestresults47–50

sensitivity,defined45

MiniCard

DevKitQuickStartGuide15

PCIExpressSpecification15

SeealsoMC5725,MC5725V,MC5727,MC5727V,

MC8775,MC8775V,MC8780,MC8781,

MC8785V

minicom

downloadingandinstalling84

mixing

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codec52

modes

deepsleep,description34

operating34

shutdown,description34

sleep,description34

transmit/receive,description34

module

powerstates18–24

networks

supported,bymoduletype11

noise

leakage,minimizing39

RFinterference,powersupply41

noisesuppression

audiofeature51

module‐controlled58

normalmode

statechangefromlowpower,temperature23

statechangefromlowpower,voltage21

statechangetolowpower,temperature23

statechangetolowpower,voltage21

normal,modulepowerstate19

off,modulepowerstate19

outputdriverstage,audiofeature51

pathloss,OTAtesting44

pathswitching

codec52

PCB

multi‐layer,shieldingforRFdesense43

PCIExpress

MiniCardspecification15

PCMdigitalaudio,signalinterface58

PCS1900

RFparameters,MC87xx37

PCSband

RFparameters,MC57xx37

pins

connector(2.6V),MC8775V61

polyphonicringtone

host‐controlled58

power

consumption,MC8780/8134

currentconsumption,overview27

defaultstate19

designchecklist75

disconnected,characteristics19

normal,characteristics19

off,characteristics19

off,statechange,temperature23

off,statechange,voltage21

power‐uptiming26

ramp‐uptiming26

requiredsupplyvoltage17

signals,overview17

statemachine,temperaturemonitoring22–24

statemachine,voltagemonitoring20–22

state,disconnected19

state,lowpower19–20

state,normal19

state,off19

states,module18–24

supply,RFinterference41

supply,ripplelimit41

transmit,waveform26

powerinterface17–35

productspecification(PSD)14

productiontests79

PSD(ProductSpecificationDocument)14

qualityassurancetests96

regulatoryinformation111–113

EU113

FCC112

limitationofliability111

safetyandhazards111

resistors,externalpull‐up67

resume

mode,USB63

antennacableloss,maximum39

antennaconnection,considerations39

cabletype,required12

desense

device‐generated42

harmonicenergy,filtering43

mitigationsuggestions42

shieldingsuggestions43

integration37–50

interference

otherdevices42

powersupply41

wirelessdevices41

levelloweredautomatically,hightemperature24

parameters

cellularband,MC57xx37

GPS,MC57xx37

MC57xx37

MC87xx37

PCSband,MC57xx37

parameters,MC87xx

DCS180037

Index

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EGSM90037

GPS38

GSM85037

PCS190037

UMTS190038

UMTS210038

UMTS85038

ringertone

codec52

ringers

module‐controlled58

ringtone,polyphonic

host‐controlled58

Rxband

RFparameters,MC57xx37

Rxsensitivity

conducted,RFparameter,MC87xx37

RFparameter,MC57xx37

SCI(SlotCycleIndex)28

SED

seeSmartErrorDetection

sensitivity

conducted,RFparameter,MC87xx37

defined,MC57xxandMC87xx45

GPSconducted,MC87xx37

MC57xx,defined(frameerrorrate)45

MC87xx,defined(biterrorrate)45

measurements47–50

radiatedmeasurement,overview43

RFparameter,MC57xx37

testresults

MC57xx46

MC87xx47–50

testing

deviceundertest,positioning45

testing,overview43

testing,pathlosscalculation44

sensitivity,OTAtestchamberconfiguration43

shielding

module,compliance40

reducingRFdesense43

sidetone

responsiblecodec59

support55

SIM

testingmethods,MSconformancespecification15

SeealsoUSIM

SlotCycleIndex28

SmartErrorDetection

detectingmodulereset34

speakerphoneaudiomode51

speakerphonemode

echocancellation57

statemachine

temperaturemonitoring22–24

voltagemonitoring20–22

suspend

mode,USB63

systemblock

MC5725V,audio52

MC5727V,audio52

MC8775V,audio54

temperaturemonitoringstatemachine

triggerlevels22

temperature,module.Seethermal

test

efficiency108

fadingcorrelationcoefficient109

gain,antenna109

isolation108

VSWR(VoltageStandingWaveRatio)106

testing

overview77

acceptancetests77

audioloop‐back,MC5725V/MC5727V/MC8775V

certificationtests78

equipment,suggested97

ESDimmunity,techniquesdocument(IEC‐61000‐

4‐2)14

GPSreceiver,MC8775V/MC8780/MC878193

manualfunctionaltest,suggested80

productiontests79

qualityassurancetests96

RFreceivepath,MC57xx88

RFreceivepath,MC87xx90

RFtransmissionpath,MC57xx85

RFtransmissionpath,MC87xx86

sensitivity,OTAtestchamberconfiguration43

suggestions77–99

testing,pathlosscalculation45

thermal

considerations73–74

designchecklist76

dissipation,factorsaffecting73

dissipation,suggestions73

RFshieldtemperature,maximum74

testing,module73–74

timing

powerramp‐up26

power‐up26

transducerinterface

host‐controlled59

transducerinterfaces

codec52

transmitpowerwaveform26

Txband

RFparameters,MC57xx37

Txpower

conducted,RFparameter,MC87xx37

RFparameters,MC57xx37

CDMA and GSM / UMTS Mini Card Hardware Integration Guide

124 Proprietary and Confidential 2130114

In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

UDK(UniversalDevelopmentKit)

components,included11

UMTS1900

RFparameters,MC87xx38

sensitivity,testresults50

UMTS2100

RFparameters,MC87xx38

sensitivity,testresults50

UMTS850

RFparameters,MC87xx38

sensitivity,testresults49

UniversalDevelopmentKit(UDK)

components,included11

UniversalSerialBus.SeeUSB.

usagemodels

currentconsumption35

USB

enumeration,power‐up26

handshaking62

hostdriverrequirements63

interface

host⁄modulecommunication62–64

overview62

resumemode63

specification15

suspendmode63

USIM

capacitorrecommendations68

cardcontacts66

clockrate67

connectortype,required12

electricalspecifications67

impedance,connectors67

interfacediagram66

interface,overview65

operation67–68

pinassignments65

socketplacement68

voicememo

host‐controlled58

voltagemonitoringstatemachine

triggerlevels20

VoltageStandingWaveRatio(VSWR)

testcriteria106

volume,setting

responsiblecodec59

VSWR(VoltageStandingWaveRatio)

testcriteria106

W_Disable#

deasserted,causesinrushcurrentevent25

de‐asserted,peakcurrent25

inrushcurrents24

module,poweringoff21,23

Normalstate19

offstate19

ZIF(ZeroIntermediateFrequency)41

Sierra Wireless MC5728 PCA,EVDO MINI-PCI EXPRESS CARD CDMA MODEM User Manual HW Integration Guide

Sierra Wireless Inc. PCA,EVDO MINI-PCI EXPRESS CARD CDMA MODEM HW Integration Guide

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