Sierra Wireless Q2686 Cellular GSM/ GPRS Transmitter Module User Manual Q2686 Wireless CPU Product Technical Specification

Download:
Mirror Download [FCC.gov]
Document ID	1135580
Application ID	A2oXRw5SJQLEyILmRmphxg==
Document Description	Installation Guide
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	153.31kB (1916358 bits)
Date Submitted	2009-07-08 00:00:00
Date Available	2009-07-08 00:00:00
Creation Date	2009-06-30 10:28:41
Producing Software	Acrobat Distiller 7.0.5 (Windows)
Document Lastmod	2009-06-30 10:32:48
Document Title	Q2686 Wireless CPU Product Technical Specification
Document Creator	Acrobat PDFMaker 7.0.7 for Word
Document Author:	Wavecom

Product Technical Specification
Q2686 Wireless CPU®
Reference: WM_PRJ_Q2686_PTS_001
Revision: 010
Date: June 30, 2009
Q2686 Wireless CPU®
Q2686 Wireless CPU®
Product Technical Specification
Reference: WM_PRJ_Q2686_PTS_001
Revision: 010
Date: June 30, 2009
Supports Open AT® embedded ANSI C applications
© Confidential
Page: 1 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Document History
Level
Date
List of revisions
001
01/17/2005
Creation (Preliminary version)
002
06/01/2005
Pin-out modification (see chapter 3.1)
003
15/09/2005
004
November 22,
2005
005
February 2006 Update “PCM interface” waveform (see chapter 3.21)
Update “Electrical information for digital IO” absolute maximum
rating (see chapter 3.3)
Update “General purpose connector” (see chapter 3.1)
Update “SPI bus” speed (see chapter 3.4.1)
Update “I²C bus” (see chapter 3.4.2)
Update “Main serial link UART 1” maximum speed
(see chapter 3.6)
Update “Auxiliary serial link UART 2” maximum speed (see
chapter 3.7)
Update “SIM” General description (see chapter 3.8.1)
Update “USB 2.0 interface” features (see chapter 3.22)
Update “Operating system upgrade” (see chapter 6.3)
Update “General purpose input/output” signals description (see
chapter 3.9)
Update “General purpose connector pin-out description” signal
description (see chapter 4.1)
Update “Battery charging interface” (see chapter 3.13)
Update “Analog to μDigital Converter” (see chapter 3.10)
Update “FLASH-LED signal” (see chapter 3.20)
Update Functional architecture
Pin-out modification (see chapter 4.1)
Add RESET state of all IOs of all interfaces
Update power supply range (see chapter 3.2)
Update electrical information for digital IO
(see chapter 3.2)
Update SPI bus configuration (see chapter 3.4)
Remove 3 GPIO (see chapter 3.9)
Change MIC1 biasing voltage configuration
(see chapter 3.11)
Change SPK1 definition to only single-ended
(see chapter 3.11)
Update ON/ÕFF operating sequence (see chapter 3.14)
Update BOOT definition (see chapter 3.15)
Update ~RESET operating sequence and electrical characteristics
(see chapter 3.14)
Update Interrupt activation (see chapter 3.17)
Update RTC electrical characteristics (see chapter 3.19)
Update PCM description and add waveform
(see chapter 3.21)
Update Q2686 version “Overview” section
Update “Cautions”, “Trademarks” and “Copyright”
Update “Electrical information for digital I/O”
(see chapter 3.3)
Update SPI max frequency (see chapter 3.4)
Update available GPIO (see chapter 3.9)
Add “OFF state“ voltage caution (see chapter 3.2)
Update “Battery charging interface” (see chapter 3.13)
Update “Analog audio interface” (see chapter 3.11)
Update ”Environmental Specifications” (see chapter 4.2)
Update “General Purpose Connector pin-out description” (see
chapter 4.1)
© Confidential
Page: 2 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Level
Date
List of revisions
Update ‘Analog Audio interface” (see chapter 3.11)
006
March 2006
007
March 2007
008
June 2008
009
May 14, 2009
010
June 30, 2009
Update “Power consumption” (see chapter 3.3.2)
Update “ON/~OFF signal” (see chapter 3.14)
Update “BAT-RTC” (see chapter 3.19)
Update “Electrical information for digital IO” absolute maximum
rating (see chapter 3.3)
Update “Buzzer output”, remove PWM features ( see chapter 3.12
Update “EMC recommendation” add ESD recommendations (see
chapter 6.1.1 )
Update “SPI bus” add waveforms ( see chapter 3.4.1 )
Update “I²C bus” add waveforms ( see chapter 3.4.2 )
Update “Analog to Digital Converter“ sampling rate
(see chapter 3.10)
Modification of the ON/ ~OFF paragraph
Add ATEX 94/9/CE directive information in section 4.4
Update reference documents
Update section 3.6 “Main serial link (UART1)”
Other minor corrections
Software update : Open AT® Software Suite v2
Consumption modifications: ( see chapter 3.22)
Modification in analog audio interface ( see chapter 3.11 ).
Update of Temperature Class B (-30 °C + 85°C ) ( see chapter 4.3 )
New chapter for correspondences of labelling between Q2686
with Open AT® Software Suite v2 ( see chapter 4.2 )
ADC modifications: ( see chapter 3.10)
SPI modification: ( see chapter 3.4 )
BUZZER modifications : ( see chapter 3.12 )
LED0 : new designation : ( see chapter 3.20 and 4.2)
GPIO44:new designation: ( see chapter 4.2 )
Reset signal: modification on input impedance (see chapter 3.16)
Current start up definition ( see chapter 3.2.2 )
Charger interface updated ( see chapter 3.13 )
RTC interface : Maximum input voltage updated (see chapter
3.19.1)
Update Storage temperature in section 4.3.
Updates to contents of section 7.1.
Updated to antenna gain information in section 7.1.
© Confidential
Page: 3 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Overview
This document defines and specifies the Q2686 Wireless CPU®, available in a
GSM/GPRS Class 10 quad-band version:
•
Q2686H: EGSM/GPRS 900/1800/850/1900 MHz version with 32 Mb of
Bursted Flash memory and 8 Mb of SRAM (32/8).
•
Q2686G: EGSM/GPRS 900/1800/850/1900 MHz version with 64 Mb of
Bursted Flash memory and 16 Mb of SRAM (64/16).
The Q2686 Wireless CPU® supports a powerful open software platform (Open
AT®). Open AT® is the world’s most comprehensive cellular development
environment, which allows embedded standard ANSI C applications to be
natively executed directly on the Wireless CPU®.
This Product Technical Specification document covers the Wireless CPU® alone
and does not include the programmable capabilities provided via the use of
Open AT® Software Suites.
For detailed software programming guides, refer to the documents shown in the
“WM_PRJ_Q2686_PTS_001” section.
© Confidential
Page: 4 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Cautions
This platform contains a modular transmitter. This device is used for wireless
applications. Note that all electronics parts and elements are ESD sensitive.
Information provided herein by WAVECOM is accurate and reliable. However, no
responsibility is assumed for its use and any of such WAVECOM information is
herein provided “as is” without any warranty of any kind, whether express or
implied.
Trademarks
®
, inSIM®, “YOU MAKE IT, WE MAKE IT
®
WIRELESS” , WAVECOM , WISMO®, Wireless Microprocessor®, Wireless CPU®,
Open AT® and certain other trademarks and logos appearing on this document,
are filed or registered trademarks of Wavecom S.A. in France and/or in other
countries. All other company and/or product names mentioned may be filed or
registered trademarks of their respective owners.
®
Copyright
This manual is copyrighted by WAVECOM with all rights reserved. No part of
this manual may be reproduced, modified or disclosed to third parties in any
form without the prior written permission of WAVECOM.
No Warranty/No Liability
This document is provided “as is”. Wavecom makes no warranties of any kind,
either expressed or implied, including any implied warranties of merchantability,
fitness for a particular purpose, or noninfringement.
The recipient of the
documentation shall endorse all risks arising from its use. In no event shall
Wavecom be liable for any incidental, direct, indirect, consequential, or punitive
damages arising from the use or inadequacy of the documentation, even if
Wavecom has been advised of the possibility of such damages and to the extent
permitted by law.
© Confidential
Page: 5 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Web Site Support
General information about Wavecom and its www.wavecom.com
range of products:
Specific support about the Q2686 Wireless www.wavecom.com/Q2686
CPU®:
Carrier/Operator approvals:
www.wavecom.com/approvals
Open AT® Introduction:
www.wavecom.com/OpenAT
Developer support for software and hardware:
www.wavecom.com/forum
© Confidential
Page: 6 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Table of Contents
References ................................................................................ 13
1.1
Reference Documents........................................................................... 13
1.1.1
Open AT® Software Documentation............................................... 13
1.1.2
AT Software Documentation ......................................................... 13
1.1.3
Hardware Documents ................................................................... 13
1.1.4
Other Wavecom Documents ......................................................... 13
1.1.5
General Reference Documents ...................................................... 13
1.2
List of Abbreviations ............................................................................. 14
General Description .................................................................. 17
2.1
General Information .............................................................................. 17
2.1.1
Overall Dimensions ....................................................................... 17
2.1.2
Environment and Mechanics......................................................... 17
2.1.3
GSM/GPRS Features ..................................................................... 17
2.1.4
Interfaces ...................................................................................... 17
2.1.5
Operating System ......................................................................... 18
2.1.6
Connection Interfaces ................................................................... 18
2.2
Functional Architecture......................................................................... 19
2.2.1
RF Functionalities ......................................................................... 20
2.2.2
Baseband Functionalities .............................................................. 20
2.3
Operating System ................................................................................. 20
Interfaces ................................................................................. 21
3.1
General Purpose Connector (GPC)......................................................... 21
3.2
Power Supply ....................................................................................... 22
3.2.1
Power Supply Description............................................................. 22
3.2.2
Power Consumption ..................................................................... 23
3.2.2.1
Start-up Current...................................................................... 24
3.2.2.2
Power Consumption without Open AT® Processing ................ 25
3.2.2.3
Power Consumption with Open AT® Software ........................ 26
3.2.2.4
Consumption Waveform Samples ........................................... 28
3.2.2.5
Power Supply Pin-out ............................................................. 30
3.3
Electrical Information for Digital I/O....................................................... 31
3.4
Serial interface ...................................................................................... 33
3.4.1
SPI Bus ......................................................................................... 33
3.4.1.1
Characteristics ........................................................................ 33
3.4.1.2
SPI configuration..................................................................... 33
3.4.1.3
SPI waveforms........................................................................ 34
3.4.1.4
SPI1 Bus: Pins description ...................................................... 35
© Confidential
Page: 7 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.4.1.5
SPI2 Bus: Pins description ...................................................... 35
3.4.2
I2C Bus ......................................................................................... 36
3.4.2.1
I²C Waveforms ........................................................................ 36
3.4.2.2
I²C Bus Pin-out ....................................................................... 37
3.5
Keyboard Interface ................................................................................ 37
3.6
Main Serial Link (UART1) ...................................................................... 38
3.7
Auxiliary Serial Link (UART2) ................................................................ 40
3.8
SIM Interface ........................................................................................ 41
3.8.1
General Description....................................................................... 41
3.9
General Purpose Input/Output .............................................................. 43
3.10
Analog to Digital Converter ................................................................... 45
3.11 Analog Audio Interface ......................................................................... 46
3.11.1 Microphone Features .................................................................... 46
3.11.1.1 MIC1 Microphone Inputs ........................................................ 46
3.11.1.2 MIC2 Microphone Inputs ........................................................ 47
3.11.2 Speaker Features .......................................................................... 49
3.11.2.1 Speakers Outputs Power......................................................... 49
3.11.3 Pin description .............................................................................. 51
3.12
Buzzer Output ...................................................................................... 52
3.13 Battery Charging Interface .................................................................... 53
3.13.1 Ni-Cd / Ni-Mh Charging Algorithm ................................................ 53
3.13.2 Li-Ion Charging Algorithm ............................................................. 55
3.13.3 Pre-charging ................................................................................. 56
3.13.4 Temperature Monitoring ............................................................... 56
3.14 ON / ~OFF signal .................................................................................. 58
3.14.1 Operating Sequences .................................................................... 58
3.14.1.1 Power-ON ............................................................................... 58
3.14.1.2 Power-OFF.............................................................................. 61
3.15
BOOT Signal ......................................................................................... 62
3.16
Reset Signal (~RESET) .......................................................................... 63
3.17
External Interrupt.................................................................................. 65
3.18
VCC_2V8 and VCC_1V8 Output ............................................................. 66
3.19 BAT-RTC (Backup Battery).................................................................... 67
3.19.1 Interface Description ..................................................................... 67
3.20
LED0 Signal .......................................................................................... 69
3.21 Digital Audio Interface (PCM)................................................................ 72
3.21.1 Description ................................................................................... 72
3.22
USB 2.0 Interface.................................................................................. 75
3.23 RF Interface .......................................................................................... 76
3.23.1 RF Connections............................................................................. 76
3.23.2 RF Performance ............................................................................ 76
3.23.3 Antenna Specifications ................................................................. 77
Technical Specifications ........................................................... 78
© Confidential
Page: 8 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
4.1
General Purpose Connector Pin-out Description.................................... 78
4.2
v2
Labeling Correspondence between Q2686 and Open AT® Software Suite
81
4.3
Environmental Specifications ................................................................ 82
4.4
Conformance with ATEX 94/9/CE directive ............................................ 83
4.5
Mechanical Specifications..................................................................... 83
4.5.1
Physical Characteristics ................................................................ 83
4.5.2
Mechanical Drawings ................................................................... 83
Connector and Peripheral Device References............................ 85
5.1
General Purpose Connector .................................................................. 85
5.2
SIM Card Reader .................................................................................. 85
5.3
Microphone .......................................................................................... 85
5.4
Speaker ................................................................................................ 86
5.5
Antenna Cable ...................................................................................... 86
5.6
RF Board-to-board Connector ............................................................... 86
5.7
GSM Antenna....................................................................................... 86
Design Guidelines ..................................................................... 87
6.1
HARDWARE and RF.............................................................................. 87
6.1.1
EMC Recommendations................................................................ 87
6.1.2
Power Supply ............................................................................... 88
6.1.3
Layout Requirement ...................................................................... 89
6.1.4
Antenna ........................................................................................ 90
6.2
Mechanical Integration ......................................................................... 90
6.3
Operating System Upgrade................................................................... 90
Appendix................................................................................... 91
7.1
Standards and Recommendations ........................................................ 91
7.2
Safety Recommendations (for information only).................................... 95
7.2.1
RF Safety ...................................................................................... 95
7.2.1.1
General ................................................................................... 95
7.2.1.2
Exposure to RF Energy ............................................................ 95
7.2.1.3
Efficient Terminal Operation .................................................... 95
7.2.1.4
Antenna Care and Replacement .............................................. 96
7.2.2
General Safety............................................................................... 96
7.2.2.1
Driving .................................................................................... 96
7.2.2.2
Electronic Devices ................................................................... 96
7.2.2.3
Vehicle Electronic Equipment .................................................. 96
7.2.2.4
Medical Electronic Equipment ................................................. 96
7.2.2.5
Aircraft.................................................................................... 97
7.2.2.6
Children .................................................................................. 97
7.2.2.7
Blasting Areas......................................................................... 97
7.2.2.8
Potentially Explosive Atmospheres.......................................... 97
© Confidential
Page: 9 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
© Confidential
Page: 10 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Table of Figures
CHARGER
SUPPLY INTERFACE
POWER
RF
INTERFACE
AUDIO FILTER
RF
TRANSCEIVER
AUDIO
EXT_IT
USB detection
KEYPAD
SPI1
PCM
SPI2
UART2
I2C
UART1
GPIO
USB
ADC
SIM 1.8V/3V
DAC
RTC
EBI
RF
FRONT END
ANTENNA
COAX
UFL
IMP
MEMORY
FLASH / SRAM
Figure 1: Functional architecture ................................................................. 19
Figure 2: Power supply during burst emission.................................................. 22
Figure 3: Start-up current waveform................................................................. 24
Figure 4: SPI Timing diagrams,Mode 0,Master,4 wires .................................... 34
Figure 5: SPI Timing diagrams with LOAD signal, Mode 0, Master, 4 wires ..... 35
Figure 6: I²C Timing diagrams, Master ............................................................. 36
Figure 7: Ni-Cd / Ni-Mh charging waveform ..................................................... 53
Figure 8: Li-Ion full charging waveform ............................................................ 55
Figure 9: Power-ON sequence (no PIN code activated) ..................................... 59
Figure 10: Power-OFF sequence ....................................................................... 61
© Confidential
Page: 11 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Figure 11: Reset sequence waveform ............................................................... 63
Figure 12: Real Time Clock power supply ......................................................... 67
Figure 13: LED0 state during RESET and Initialization time............................... 71
Figure 14: PCM frame waveform ...................................................................... 73
Figure 15: PCM sampling waveform................................................................. 73
Figure 16: Environmental classes ..................................................................... 82
Figure 17: Mechanical drawing ........................................................................ 84
Figure 18: Layout requirement.......................................................................... 89
© Confidential
Page: 12 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
1 References
1.1 Reference Documents
For more details, several reference documents may be consulted. The
Wavecom reference documents are provided in the Wavecom document
package, contrary to the general reference documents which are not authored
by Wavecom.
Please check the web site for the latest documentation available. Note that the
last software version available for Q2686 is Open AT® Software Suite v2.0.
1.1.1 Open AT® Software Documentation
[1]
[2]
[3]
[4]
[5]
[6]
Getting started with Open AT®
Tutorial for Open AT®
Tools Manual for Open AT®
Basic Development Guide for Open AT®
ADL User Guide for Open AT®
Open AT® Release Note
1.1.2 AT Software Documentation
[7]
[8]
[9]
AT commands interface Guide V7.1
AT Commands Interface Guide (Bluetooth)
Open AT® firmware Release Note
1.1.3 Hardware Documents
[10] Q2686 Wireless CPU® Customer Design Guidelines
(Ref. WM_PRJ_Q2686_PTS_003)
[11] Q2686 Wireless CPU® Process Customer Guidelines
(Ref.WM_PRJ_Q2686_PTS_004)
1.1.4 Other Wavecom Documents
[12] Automotive Environmental Control Plan for Q2686 Wireless CPU®
(Ref. WM_T&D_Q2686_DCP_001)
1.1.5 General Reference Documents
[13] “I²C Bus Specification”, Version 2.0, Philips Semiconductor 1998
[14] ISO 7816-3 Standard
© Confidential
Page: 13 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
1.2 List of Abbreviations
Abbreviation Definition
AC
Alternating Current
ADC
Analog to Digital Converter
A/D
Analog to Digital conversion
AF
Audio-Frequency
AT
ATtention (prefix for modem commands)
AUX
AUXiliary
CAN
Controller Area Network
CB
Cell Broadcast
CEP
Circular Error Probable
CLK
CLocK
CMOS
Complementary Metal Oxide Semiconductor
CS
Coding Scheme
CTS
Clear To Send
DAC
Digital to Analog Converter
dB
Decibel
DC
Direct Current
DCD
Data Carrier Detect
DCE
Data Communication Equipment
DCS
Digital Cellular System
DR
Dynamic Range
DSR
Data Set Ready
DTE
Data Terminal Equipment
DTR
Data Terminal Ready
EFR
Enhanced Full Rate
E-GSM
Extended GSM
EMC
ElectroMagnetic Compatibility
EMI
ElectroMagnetic Interference
EMS
Enhanced Message Service
EN
ENable
ESD
ElectroStatic Discharges
FIFO
First In First Out
FR
Full Rate
© Confidential
Page: 14 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Abbreviation Definition
FTA
Full Type Approval
GND
GrouND
GPI
General Purpose Input
GPC
General Purpose Connector
GPIO
General Purpose Input Output
GPO
General Purpose Output
GPRS
General Packet Radio Service
GPS
Global Positioning System
GSM
Global System for Mobile communications
HR
Half Rate
I/O
Input / Output
LED
Light Emitting Diode
LNA
Low Noise Amplifier
MAX
MAXimum
MIC
MICrophone
MIN
MINimum
MMS
Multimedia Message Service
MO
Mobile Originated
MT
Mobile Terminated
na
Not Applicable
NF
Noise Factor
NMEA
National Marine Electronics Association
NOM
NOMinal
NTC
Negative Temperature Coefficient
PA
Power Amplifier
Pa
Pascal (for speaker sound pressure measurements)
PBCCH
Packet Broadcast Control CHannel
PC
Personal Computer
PCB
Printed Circuit Board
PDA
Personal Digital Assistant
PFM
Power Frequency Modulation
PSM
Phase Shift Modulation
PWM
Pulse Width Modulation
RAM
Random Access Memory
© Confidential
Page: 15 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Abbreviation Definition
RF
Radio Frequency
RFI
Radio Frequency Interference
RHCP
Right Hand Circular Polarization
RI
Ring Indicator
RST
ReSeT
RTC
Real Time Clock
RTCM
Radio Technical Commission for Maritime services
RTS
Request To Send
RX
Receive
SCL
Serial CLock
SDA
Serial DAta
SIM
Subscriber Identification Module
SMS
Short Message Service
SPI
Serial Peripheral Interface
SPL
Sound Pressure Level
SPK
SPeaKer
SRAM
Static RAM
TBC
To Be Confirmed
TDMA
Time Division Multiple Access
TP
Test Point
TVS
Transient Voltage Suppressor
TX
Transmit
TYP
TYPical
UART
Universal Asynchronous Receiver-Transmitter
USB
Universal Serial Bus
USSD
Unstructured Supplementary Services Data
VSWR
Voltage Standing Wave Ratio
© Confidential
Page: 16 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
2 General Description
2.1 General Information
The Q2686 series is a self-contained E-GSM/GPRS 900/1800 and 850/1900
quad-band Wireless CPU® with the following characteristics:
2.1.1 Overall Dimensions
•
•
•
Length: 40 mm
Width: 32.2 mm
Thickness: 4 mm
2.1.2 Environment and Mechanics
•
Green policy: RoHS compliant
• Complete shielding
The Q2686 Wireless CPU® is compliant with RoHS (Restriction of Hazardous
Substances in Electrical and Electronic Equipment) Directive 2002/95/EC which
sets limits for the use of certain restricted hazardous substances. This directive
states that “from 1st July 2006, new electrical and electronic equipment put
on the market does not contain lead, mercury, cadmium, hexavalent
chromium, polybrominated biphenyls (PBB), and polybrominated diphenyl
ethers (PBDE)”.
The Wireless CPU®s which are compliant with this
directive are identified by the RoHs logo on their label.
2.1.3 GSM/GPRS Features
•
•
•
2-Watt EGSM 900/GSM 850 radio section running under 3.6 volts
1-Watt GSM1800/1900 radio section running under 3.6 volts
Hardware GPRS class 10 capable
2.1.4 Interfaces
•
•
•
Digital section running under 2.8 volts and 1.8V.
3V/1V8 SIM interface
Complete interfacing:
o Power supply
o Serial link
o Analog audio
o PCM digital audio
o SIM card
o Keyboard
o USB 2.0 slave
o Serial LCD (not available with AT commands)
© Confidential
Page: 17 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
2.1.5 Operating System
•
•
•
•
Real Time Clock (RTC) with calendar
Battery charger
Echo cancellation + noise reduction (quadri codec)
Full GSM or GSM/GPRS Operating System stack
2.1.6 Connection Interfaces
The Q2686 Wireless CPU® has four external connections:
•
•
Three for RF circuit:
o UFL connector
o Soldered connection
o IMP connection
One for baseband signals:
o 100 pin I/O connector.
© Confidential
Page: 18 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
2.2 Functional Architecture
The global architecture of the Q2686 Wireless CPU® is displayed below:
CHARGER
SUPPLY INTERFACE
POWER
RF
INTERFACE
AUDIO
AUDIO FILTER
EXT_IT
RF
TRANSCEIVER
USB detection
KEYPAD
SPI1
PCM
SPI2
UART2
I2C
UART1
GPIO
USB
ADC
SIM 1.8V/3V
DAC
RTC
EBI
RF
FRONT END
ANTENNA
COAX
UFL
IMP
MEMORY
FLASH / SRAM
Figure 1: Functional architecture
© Confidential
Page: 19 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
2.2.1 RF Functionalities
The Radio Frequency (RF) range complies with the Phase II EGSM 900/DCS
1800 and GSM 850/PCS 1900 recommendations. The frequencies are:
Transmit band (Tx)
Receive band (Rx)
GSM 850
824 to 849 MHz
869 to 894 MHz
E-GSM 900
880 to 915 MHz
925 to 960 MHz
DCS 1800
1710 to 1785 MHz
1805 to 1880 MHz
PCS 1900
1850 to 1910 MHz
1930 to 1990 MHz
The Radio Frequency (RF) part is based on a specific quad-band chip with a:
•
•
•
•
•
•
Digital low-IF receiver
Quad-band LNA (Low Noise Amplifier)
Offset PLL (Phase Locked Loop) transmitter
Frequency synthesizer
Digitally controlled crystal oscillator (DCXO)
Tx/Rx FEM ( Front-End Wireless CPU®) for quad-band GSM/GPRS
2.2.2 Baseband Functionalities
The digital part of the Q2686 Wireless CPU® is composed of a PCF5212
PHILIPS chip. This chipset uses a 0.18 μm CMOS mixed technology, which
allows massive integration as well as low current consumption.
2.3 Operating System
The Q2686 Wireless CPU® is designed to integrate various types of specific
process applications such as vertical applications (telemetry, multimedia,
automotive).
The Operating System offers a set of AT commands to control the Wireless
CPU®. With this standard Operating System, some interfaces of the Wireless
CPU® are not available because they are dependent on the peripheral devices
connected to the Wireless CPU®.
The Operating System is Open AT® compliant.
© Confidential
Page: 20 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3 Interfaces
3.1 General Purpose Connector (GPC)
A 100-pin connector is provided to interface the Q2686 Wireless CPU® with a
board containing either a serial LCD Wireless CPU®, a keyboard, a SIM
connector, or a battery connection.
The available interfaces on the GPC are described below:
Driven by
Chapter
Name
3.4
Serial Interface
3.5
Keyboard Interface
3.6
Main Serial Link
3.7
Auxiliary Serial Link
3.8
SIM Interface
3.9
General Purpose IO
3.10
Analog to Digital
Converter
3.11
Analog Audio
Interface
3.12
Buzzer Output
3.13
Battery Charging
Interface
3.17
External Interruption
3.18
VCC_2V8 and
VCC_1V8
3.19
BAT-RTC (Backup
Battery)
3.20
LED0 signal
3.21
Digital Audio Interface
(PCM)
3.22
USB 2.0 Interface
© Confidential
Driven by
AT
Open AT®
commands
Page: 21 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.2 Power Supply
3.2.1 Power Supply Description
The power supply is one of the key issues in the design of a GSM terminal.
Due to the burst emission mode used in GSM/GPRS, the power supply must be
able to deliver high current peaks in a short time. During the peaks, the ripple
(Uripp) on the supply voltage must not exceed a certain limit (see Table 1 Power
supply voltage ).
•
In communication mode, a GSM/GPRS class 2 terminal emits 577μs
radio bursts every 4.615ms (see Figure 2).
VBATTT
Uripp
Uripp
t = 577 μs
T = 4,615 ms
Figure 2: Power supply during burst emission
•
In communication mode, a GPRS class 10 terminal emits 1154μs radio
bursts every 4.615ms.
Only the VBATT input is necessary to supply the Q2686 Wireless CPU®.
VBATT:
•
Directly supplies the RF components with 3.6 V. It is essential to keep a
minimum voltage ripple at this connection in order to avoid any phase
error.
The RF Power Amplifier current (1.5 A peak in GSM /GPRS mode) flows
with a ratio of:
1/8 of the time (around 577μs every 4.615ms for GSM /GPRS cl. 2)
and
2/8 of the time (around 1154μs every 4.615ms for GSM /GPRS
cl. 10).
The rising time is around 10μs.
•
Is internally used to provide, via several regulators, the VCC_2V8 and
VCC_1V8 power supply required for the baseband signals.
The Q2686 Wireless CPU® shielding case is the grounding. The ground must
be connected to the motherboard through a complete layer on the PCB.
© Confidential
Page: 22 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
VBATT1,2
VMIN
VNOM
VMAX
3.2
3.6
4.8
Table 1 Power supply voltage
(1): This value must be guarantied during the burst (with 1.5A Peak in GSM or GPRS mode)
(2): Max operating Voltage Stationary Wave Ratio (VSWR) 2:1
When the Wireless CPU® is supplied with a battery, the total impedance
(battery + protections + PCB) should be < 150 mΩ.
As the radio power amplifier is directly connected to VBATT, the Wireless CPU®
is sensitive to any Alternative Current on lines. When a DC/DC converter is
used, Wavecom recommends setting the converter frequency in such a way
that the resulting voltage does not exceed the values in following table.
Freq.
Uripp Max
(kHz)
(mVpp)
<10
300
10 ≤ f ≤ 200
40
> 200
10
Table 2 Maximum voltage ripple (Uripp) vs Frequency
When the Wireless CPU® is in Alarm/Off mode, no voltage has to be applied on
any pin of the 100-pin connector, except on Vbatt (pins 1 to 4) ,BAT-RTC (pin
7) for RTC operation or ON/~OFF (pin 19) to power-ON the Wireless CPU®.
3.2.2 Power Consumption
Power consumption is dependent on the configuration used. It is for this
reason that the following consumption values are given for each mode, RF
band and type of software used (AT or Open AT®).
All the following information is given assuming a 50 Ω RF output.
The following consumption values were obtained by performing measurements
on the Wireless CPU® samples at a temperature of 25° C.
Three VBATT values are used to measure the consumption, VBATTMIN (3.2V),
VBATTMAX (4.8V) and VBATTTYP (3.6V).
The average current is given for the three VBATT values and the peak current
given is the maximum current peak measured with the three VBATT voltages.
For a more detailed description of the operating modes, see the appendix of the
AT Command User Guide [7].
For more information on the consumption measurement procedure, see Q2686
Wireless CPU® Customer Design Guidelines [10].
First let’s define start-up current in view to avoid start issues.
© Confidential
Page: 23 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.2.2.1
Start-up Current
The start-up current is defined as follow:
During the first second following the Power on, a peak of current appears :
This peak of current is called “Istartup current “ and has a duration of about 161
ms (Typical) .
Figure 3 shows the waveform of current and localizes the peak considered as
the start-up current.
Figure 3: Start-up current waveform
In this condition, we can consider the following results:
25°C
© Confidential
Start-up
3.2 V
3.6 V
4.8 V
88 mA
80 mA
64 mA
Page: 24 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Power Consumption without Open AT® Processing
3.2.2.2
The following measurement results are relevant when:
•
there is no Open AT® application
•
Open AT® application is disabled
•
no processing is required by the Open AT® application
Power consumption without Open AT® processing
Operating mode
INOM
average
Parameters
INOM
average
INOM
average
VBATT=4,8V VBATT=3,6V VBATT=3,2V
Alarm Mode
IMAX
peak
unit
21
16
15
Paging 9 (Rx burst occurrence ~2s)
32.6
39.7
43.2
154 RX
mA
Paging 2 (Rx burst occurrence ~0,5s)
33.6
40.7
44.2
156 RX
mA
Paging 9 (Rx burst occurrence ~2s)
1.9
2.1
2.3
155 RX
mA
5.7
158 RX
mA
Fast Standby Mode
33.5
40.8
44.1
51
mA
Slow Standby Mode
0.37
0.38
0.43
49.9
mA
PCL5 (TX power 33dBm)
209
217
222
1462 TX
mA
PCL19 (TX power 5dBm)
85.6
93.8
98
257 TX
mA
PCL0 (TX power 30dBm)
153
162
166
894 TX
mA
PCL15 (TX power 0dBm)
82
89
94
225 TX
mA
gam. 3(TX power 33dBm)
198.2
206.5
211.5
1428 TX
mA
gam.17(TX power 5dBm)
80
88
91
226 TX
mA
gam.3(TX power 30dBm)
145
153
158
870TX
mA
gam.18(TX power 0dBm)
77
85
88
206 TX
mA
gam.3 (TX power 33dBm)
357
366.5
373
1426 TX
mA
gam.17 (TX power 5dBm)
114
123
125
248 TX
mA
gam.3 (TX power 30dBm)
248
257
263
878TX
mA
gam.18 (TX power 0dBm)
108
117
121
229 TX
mA
Fast Idle Mode
Slow Idle Mode
Paging 2 (Rx burst occurrence ~0,5s)
850/900 MHz
Connected Mode
1800/1900 MHz
850/900 MHz
Transfer
Mode
class 8 (4Rx/1Tx)
1800/1900 MHz
850/900 MHz
Transfer
Mode
class 10 (3Rx/2Tx)
1800/1900 MHz
TX
means that the current peak is the RF transmission burst (Tx burst)
RX
means that the current peak is the RF reception burst (Rx burst)
µA
Slow Idle Mode consumption is dependent on the SIM card used. Some SIM cards respond faster
than others, the longer the response time, the higher the consumption. The measurements were
performed with a large number of 3V SIM cards, the results in brackets are the minimum and
maximum currents measured from among all the SIMs used.
© Confidential
Page: 25 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.2.2.3
Power Consumption with Open AT® Software
The Open AT™ software used is the Full CPU Load application, the following
consumption results are measured during the run of the Full CPU Load
application.
The two tables are respectively for the CPU clock programmed at 26 MHz and
104 MHz.
Power consumption with Full CPU load Open AT® application CPU@26MHz
Working mode
INOM
INOM
INOM
average
average
average
VBATT=4,8V VBATT=3,6V VBATT=3,2V
Parameters
Alarm Mode
IMAX
peak
unit
N/A*
N/A*
N/A*
N/A*
32
38
43
194 RX
mA
33
39
44
196 RX
mA
Paging 9 (Rx burst occurrence ~2s)
N/A*
N/A*
N/A*
N/A*
Paging 2 (Rx burst occurrence ~0,5s)
N/A*
N/A*
N/A*
N/A*
Fast Standby Mode
33
38
44
50
Slow Standby Mode
N/A*
N/A*
N/A*
N/A*
PCL5 (TX power 33dBm)
210
220
223
1390 TX
mA
PCL19 (TX power 5dBm)
86
92
95
270 TX
mA
PCL0 (TX power 30dBm)
154
162
167
888 TX
mA
PCL15 (TX power 0dBm)
80
88
92
241 TX
mA
Gam.3 (TX power
33dBm)
199
207
212
1450 TX
mA
Gam.17 (TX power
5dBm)
80
88
92
249 TX
mA
Gam.3 (TX power
30dBm)
147
152
159
860 TX
mA
Gam.18 (TX power
0dBm)
77
85
89
221 TX
mA
Gam.3 (TX power
33dBm)
357
367
374
1462 TX
mA
Gam.17 (TX power
5dBm)
115
123
127
275 TX
mA
Gam.3 (TX power
30dBm)
252
260
266
870 TX
mA
Gam.18 (TX power
0dBm)
109
117
121
249 TX
mA
Paging 9 (Rx burst occurrence ~2s)
Fast Idle Mode
Paging 2 (Rx burst occurrence ~0,5s)
Slow Idle Mode
850/900 MHz
Connected Mode
1800/1900 MHz
850/900 MHz
Transfer
Mode
class
(4Rx/1Tx)
1800/1900 MHz
GPRS
850/900 MHz
Transfer
Mode
class
10
(3Rx/2Tx)
1800/1900 MHz
TX
RX
mA
means that the current peak is the RF transmission burst (Tx burst)
means that the current peak is the RF reception burst (Rx burst)
© Confidential
Page: 26 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
* N/A: That doesn’t mean that no Open AT® application is possible in this specific mode. That
means that the specific Full CPU load Open AT® application can’t allow this specific mode. (This is
a worst case for the consumption measurement).
Power consumption with Full CPU load Open AT® application CPU@104MHz
Working mode
INOM
INOM
INOM
average
average
average
VBATT=4,8V VBATT=3,6V VBATT=3,2V
Parameters
Alarm Mode
IMAX
peak
unit
N/A*
N/A*
N/A*
N/A*
51
62
68
220 RX
mA
52
63
69
220 RX
mA
Paging 9 (Rx burst occurrence ~2s)
N/A*
N/A*
N/A*
N/A*
Paging 2 (Rx burst occurrence ~0,5s)
N/A*
N/A*
N/A*
N/A*
Fast Standby Mode
49
63
69
150
Slow Standby Mode
N/A*
N/A*
N/A*
N/A*
PCL5 (TX power 33dBm)
210
220
230
1385 TX
mA
PCL19 (TX power 5dBm)
84
94
104
290 TX
mA
PCL0 (TX power 30dBm)
155
163
169
880 TX
mA
PCL15 (TX power 0dBm)
89
102
109
270 TX
mA
Gam.3 (TX power
33dBm)
225
243
252
1509 TX
mA
Gam.17 (TX power
5dBm)
107
126
133
306 TX
mA
Gam.3 (TX power
30dBm)
175
190
198
912 TX
mA
Gam.18 (TX power
0dBm)
104
120
129
284 TX
mA
Gam.3 (TX power
33dBm)
385
403
414
1532 TX
mA
Gam.17 (TX power
5dBm)
142
159
167
385 TX
mA
Gam.3 (TX power
30dBm)
271
288
301
949 TX
mA
Gam.18 (TX power
0dBm)
136
153
161
341 TX
mA
Paging 9 (Rx burst occurrence ~2s)
Fast Idle Mode
Paging 2 (Rx burst occurrence ~0,5s)
Slow Idle Mode
850/900 MHz
Connected Mode
1800/1900 MHz
850/900 MHz
Transfer
Mode
class
(4Rx/1Tx)
1800/1900 MHz
GPRS
850/900 MHz
Transfer
Mode
class
10
(3Rx/2Tx)
1800/1900 MHz
mA
means that the current peak is the RF transmission burst (Tx burst)
means that the current peak is the RF reception burst (Rx burst)
* N/A: That doesn’t mean that no Open AT® application is possible in this specific mode. That
means that the specific Full CPU load Open AT® application can’t allow this specific mode. (This is
a worst case for the consumption measurement).
TX
RX
© Confidential
Page: 27 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.2.2.4
Consumption Waveform Samples
The consumption waveforms are given for a EGSM900 network configuration
with AT software running on the Q2686 Wireless CPU®/Open AT® Software
Suite v2.
The VBATT voltage is at the typical value of 3.6V.
Four significant operating mode consumption waveforms are described:
•
Connected Mode (PCL5: Tx power 33dBm)
•
Slow Idle mode (Paging 9)
•
Fast idle mode (Paging 9)
•
Transfer mode (GPRS class 10, PCL3: Tx power 33dBm )
The following waveform shows only the form of the current, for correct current
values, see sections 3.2.2.2 and 3.2.2.3.
3.2.2.4.1 Connected Mode Current Waveform
Connected mode 33dBm
Current(A) / Time (s)
1.6
TX PEAK
1.4
1.2
0.8
0.6
0.4
0.2
0.00
© Confidential
0.00
0.00
0.00
0.01
0.01
0.01
Page: 28 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.2.2.4.2 Slow Idle Mode Current Waveform
Slow Idle mode Paging ~2s
Current(A) / Time (s)
0.16
RX PEAK
0.14
0.12
0.1
0.08
0.06
0.04
0.02
-0.02
3.2.2.4.3 Fast Idle Mode Current Waveform
Fast Idle mode Paging ~2s
Current(A) / Time (s)
0.16
RX PEAK
0.14
0.12
0.1
0.08
0.06
0.04
0.02
© Confidential
Page: 29 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.2.2.4.4 Transfer Mode Class 10 Current Waveform
Transfer mode Class 10 33dBm
Current(A) / Time (s)
1.6
TX PEAK
1.4
1.2
0.8
0.6
0.4
0.2
3.2.2.5
0.00
0.00
0.00
0.01
0.00
0.01
0.01
Power Supply Pin-out
Power supply pin-out
Signal
Pin number
VBATT
1,2,3,4
GND
Shielding
The grounding connection is made through the shielding; the four leads must
be soldered to the ground plane.
© Confidential
Page: 30 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.3 Electrical Information for Digital I/O
The three types of digital I/O on the Q2686 Wireless CPU® are: 2.8 volt CMOS,
1.8 volt CMOS and Open drain.
The three types are described below:
Electrical characteristics of digital I/O
2.8 volt type (2V8 )
Parameter
I/O type
Minim.
Typ
Maxim.
Internal 2.8V power supply VCC_2V8
2.74V
2.8V
2.86V
Input / Output pin
VIL
CMOS
-0.5V*
0.84V
VIH
CMOS
1.96V
3.2V*
VOL
CMOS
VOH
CMOS
0.4V
2.4V
Condition
IOL = - 4 mA
IOH = 4 mA
IOH
4mA
IOL
- 4mA
*Absolute maximum ratings
All 2.8V I/O pins do not accept input signal voltage above the maximum
voltage specified above, except for the UART1 interface, which is 3.3V tolerant.
1.8 volt type (1V8)
Parameter
I/O type
Minim.
Typ
Maxim.
Internal 1V8 power supply
VCC_1V8
1.76V
1.8V
1.94V
VIL
CMOS
-0.5V*
0.54V
VIH
CMOS
1.33V
2.2V*
VOL
CMOS
VOH
CMOS
Input / Output pin
0.4V
1.4V
Condition
IOL = - 4 mA
IOH = 4 mA
IOH
4mA
IOL
- 4mA
*Absolute maximum ratings
© Confidential
Page: 31 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Open drain output type
Signal name Parameter
LED0
I/O type
Minimum
Typ
Maximum
VOL
Open Drain
0.4V
IOL
Open Drain
8mA
VOL
Open Drain
0.4V
IOL
Open Drain
100mA
SDA1 /
GPIO27
VTOL
Open Drain
3.3V
and
VIH
Open Drain
SCL1 /
GPIO26
VIL
Open Drain
0.8V
VOL
Open Drain
0.4V
IOL
Open Drain
3mA
BUZZER0
Condition
Tolerated
voltage
2V
The reset states of the I/Os are given in each interface description chapter.
Definitions of these states are given below:
Reset state definition
Parameter
Definition
Set to GND
Set to supply 1V8 or 2V8 depending on I/O type
Pull-down
Pull-up
Internal pull-down with ~60kΩ resistor.
Internal pull-up with ~60kΩ resistor to supply 1V8 or 2V8
depending on I/O type.
High impedance
Undefined
Caution: undefined must not be used in your application if a
special state is required at reset. These pins may be a
toggling signal during reset.
© Confidential
Page: 32 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.4 Serial interface
The Q2686 Wireless CPU® provide two SPI bus (i.e. for LCD, memories…). or an
I²C 2-wire interface..
3.4.1 SPI Bus
Both SPI bus interfaces include:
•
A CLK signal
•
An I/O signal
•
An I signal
•
A CS (Chip Select) signal complying with the standard SPI bus (any
GPIO).
•
An optional Load signal (only the SPIx-LOAD signal)
3.4.1.1
Characteristics
•
Master mode operation
•
The CS signal must be any GPIO
•
The LOAD signal (optional) is used for the word handling mode (only the
SPIx-LOAD signal)
•
SPI speed is from 102 kbit/s to 13 Mbit/s in master mode operation
•
3 or 4-wire interface(5-wire possible with the optional SPIx-LOAD signal)
•
SPI-mode configuration: 0 to 3 (for more details, refer to document.
•
1 to 16 bits data length
3.4.1.2
SPI configuration
Operation Maximum
Speed
Master
13 Mb/s
SPIMode
Duplex
0,1,2,3 Half
3-wire
type
4-wire
type
SPIxSPIx-CLK; CLK;
SPIx-IO;
SPIx-IO;
GPIOx as SPIx-I;
GPIOx as
CS
CS
5-wire type
SPIx-CLK; SPIxIO; SPIx-I; GPIOx
as CS; SPIxLOAD (not
muxed in GPIO);
For the 3-wire configuration, SPIx-I/O is used as input and output.
For the 4-wire configuration, SPIx-I/O is used as output only, SPIx-I is used as input only.
For the 5-wire configuration, SPIx-I/O is used as output only, SPIx-I is used as input only. And the
dedicated SPIx-LOAD signal is used. It is an additional signal in more than a Chip Select (any other
GPIOx)
© Confidential
Page: 33 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.4.1.3
SPI waveforms
Waveform for SPI transfer with 4-wire configuration in master mode 0 .
Figure 4: SPI Timing diagrams,Mode 0,Master,4 wires
AC characteristics
Signal
Description
Minimum
CLK-cycle
SPI clock frequency
0.102
Data-OUT delay Data out ready delay time
Typ
Maximum Unit
13
MHz
10
ns
Data-IN-setup
Data in setup time
ns
Data-OUT-hold
Data out hold time
ns
Waveform for SPI transfer with the LOAD signal configuration in master mode
0.(chip select is not represented)
© Confidential
Page: 34 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
CLK-cycle
D1
D0
Dx
Tload_lead
Tload_high
Tload_lag
Figure 5: SPI Timing diagrams with LOAD signal, Mode 0, Master, 4 wires
3.4.1.4
SPI1 Bus: Pins description
Pins description
Signal
Pin
number
I/O
I/O
type
Reset
state
Description
Multiplexed
with
SPI1-CLK
23
2V8
SPI Serial Clock
GPIO28
SPI1-IO
25
I/O
2V8
SPI Serial input/output
GPIO29
SPI1-I
24
2V8
SPI Serial input
GPIO30
SPI1-LOAD
22
2V8
SPI load
GPIO31
For Open drain, 2V8 and 1V8 voltage characteristics and Reset state definition, refer to Chapter
3.3, "Electrical information for digital I/O".
3.4.1.5
SPI2 Bus: Pins description
Pins description
Signal
Pin
I/O
number
I/O
type
Reset
state
Description
Multiplexed
with
SPI2-CLK
26
2V8
SPI Serial Clock
GPIO32
SPI2-IO
27
I/O
2V8
SPI Serial input/output
GPIO33
SP2-I
29
2V8
SPI Serial input
GPIO34
SPI2-LOAD
28
2V8
SPI Load
GPIO35
See Chapter 3.3 “Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and Reset state definition.
© Confidential
Page: 35 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.4.2 I2C Bus
The I2C interface includes a clock signal (SCL1) and data signal (SDA1)
complying with a 100kbit/s-standard interface (standard mode: s-mode).
The I²C bus is always master.
The maximum speed transfer range is 400kbit/s (fast mode: f-mode).
For more information on the bus, see the “I²C Bus Specification Version 2.0”
from PHILIPS [13].
3.4.2.1
I²C Waveforms
I²C bus waveform in master mode configuration:
Figure 6: I²C Timing diagrams, Master
AC characteristics
Signal
Description
SCL1-freq
I²C clock frequency
100
T-start
Hold time START condition
0.6
μs
T-stop
Setup time STOP condition
0.6
μs
T-free
Bus free time, STOP to START
1.3
μs
T-high
High period for clock
0.6
μs
T-data-hold
Data hold time
T-data-setup
Data setup time
100
© Confidential
Minimum Typ Maximum Unit
400
0.9
kHz
μs
ns
Page: 36 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.4.2.2
I²C Bus Pin-out
Pin description
Signal
Pin
number
I/O
I/O type
Reset
state
Description
Multiplexed
with
SCL1
44
Open drain
Serial Clock
GPIO26
SDA1
46
I/O
Open drain
Serial Data
GPIO27
See Chapter 3.3, "Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and Reset state definition.
3.5 Keyboard Interface
This interface provides 10 connections:
•
5 rows (ROW0 to ROW4) and
•
5 columns (COL0 to COL4).
The scanning is a digital one and debouncing is performed in the Q2686
Wireless CPU®.
No discrete components such as Rs, Cs (Resistors, Capacitors) are needed.
Keyboard interface pin description
Signal
Pin
number
I/O
I/O
type
Reset
state
Description
Multiplexed
with
ROW0
68
I/O
1V8
Row scan
GPIO9
Row scan
GPIO10
ROW1
67
I/O
1V8
ROW2
66
I/O
1V8
Row scan
GPIO11
ROW3
65
I/O
1V8
Row scan
GPIO12
ROW4
64
I/O
1V8
Row scan
GPIO13
COL0
59
I/O
1V8
Pull-up
Column scan
GPIO4
COL1
60
I/O
1V8
Pull-up
Column scan
GPIO5
COL2
61
I/O
1V8
Pull-up
Column scan
GPIO6
COL3
62
I/O
1V8
Pull-up
Column scan
GPIO7
I/O
1V8
Pull-up
Column scan
GPIO8
COL4
63
See Chapter 3.3, “Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and for Reset state definition.
With the Open AT® Software Suite v2 when the keyboard service is used the
whole multiplexed signals become unavailable for other purposes. In the same
way if one or more GPIOs ( of this table) are allocated the keyboard service is
unavailable.
© Confidential
Page: 37 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.6 Main Serial Link (UART1)
A flexible 8-wire serial interface is available, complying with V24 protocol
signalling, but not with V28 (electrical interface) due to a 2.8 volts interface.
The signals are:
•
TX data (CT103/TX)
•
RX data (CT104/RX)
•
Request To Send (~CT105/RTS)
•
Clear To Send (~CT106/CTS)
•
Data Terminal Ready (~CT108-2/DTR)
•
Data Set Ready (~CT107/DSR).
•
Data Carrier Detect (~CT109/DCD)
•
Ring Indicator (CT125/RI).
UART1 interface pin description
Signal
Pin
number
I/O
I/O
type
Reset
state
Description
Multiplexed
with
CT103/TXD1*
71
2V8
Transmit serial
data
GPIO36
CT104/RXD1*
73
2V8
Receive serial
data
GPIO37
~CT105/RTS1*
72
2V8
Request To
Send
GPIO38
~CT106/CTS1*
75
2V8
Clear To Send
GPIO39
~CT107/DSR1*
74
2V8
Data Set Ready
GPIO40
Data Terminal
Ready
GPIO41
~CT1082/DTR1*
76
2V8
~CT109/DCD1 *
70
2V8
Undefined Data Carrier
Detect
GPIO43
~CT125/RI1 *
69
2V8
Undefined Ring Indicator
GPIO42
CT102/GND*
Shielding
leads
GND
Ground
See Chapter “3.3 Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and for Reset state definition.
*According to PC view
With the Open AT® Software Suite v2, when the UART1 service is used, the
whole multiplexed signals become unavailable for other purposes. In the
same way if one or more GPIOs (of this table) are allocated the UART1 service
is unavailable.
© Confidential
Page: 38 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
The rise and fall time of the reception signals (mainly CT103) must be less than
300 ns.
The maximum baud rate of UART1 is 921 kbit/s for the firmware provided in
the Open AT® Software Suite v2.
Recommendation:
The Q2686 Wireless CPU® is designed to operate using all the serial interface
signals. In particular, it is recommended to use RTS and CTS for hardware flow
control in order to avoid data loss during transmission.
For use with 5-wire serial interface
•
Signal: CT103/TXD1*, CT104/RXD1*, ~CT105/RTS1*, ~CT106/CTS1*
•
The signal ~CT108-2/DTR1* must be managed by following the V24
protocol signalling, if you want to use the slow idle mode.
•
Other signals and their multiplexes are not available.
•
Please refer to technical appendixes of AT commands User Guide [7] for
more information.
For use with 4-wire serial interface
•
CT103/TXD1*, CT104/RXD1*, ~CT105/RTS1*, ~CT106/CTS1*
•
The signal ~CT108-2/DTR1* must be configured at low level.
•
Other signals and their multiplexes are not available.
•
Please refer to technical appendixes in the AT commands User Guide [7]
for more information.
For use with 2-wire serial interface
•
This case is possible for connected external chip, but not recommended
(and forbidden for AT command or modem use)
•
The flow control mechanism has to be managed at the customer side.
•
CT103/TXD1*, CT104/RXD1*
•
The signal ~CT108-2/DTR1* must be configured at low level.
•
The signals ~CT105/RTS1*, ~CT106/CTS1* are not used, please
configure the AT command (AT+IFC=0,0 see AT command User Guide
[7]).
•
The signal ~CT105/RTS1* must be configured at low level.
•
Other signals and their multiplexes are not available.
•
Please refer to technical appendixes in the AT commands User Guide [7]
for more information.
© Confidential
Page: 39 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.7 Auxiliary Serial Link (UART2)
An auxiliary serial interface (UART2) is available on Q2686. This interface may
be used to connect a Bluetooth or a GPS chip controlled by an Open AT® Plugin.
UART2 interface pin description
Signal
Pin
I/O
I/O type
Reset
state
Description
Multiplexed
with
CT103 /
TXD2*
31
1V8
Transmit serial data
GPIO14
CT104 /
RXD2*
30
1V8
Receive serial data
GPIO15
~CT106 /
CTS2*
32
1V8
Clear To Send
GPIO16
~CT105 /
RTS2*
33
1V8
Request To Send
GPIO17
number
See Chapter 3.3, “Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and Reset state definition.
* According to PC view
The Q2686 is designed to operate using all the serial interface signals. In
particular, it is recommended to use RTS and CTS for hardware flow control in
order to avoid data corruption during transmission.
The maximum baud rate of UART2 is 921 kbit/s for the firmware provided with
Open AT® Software Suite v2.
For use with 4-wire serial interface
•
CT103/TXD2*, CT104/RXD2*, ~CT105/RTS2*, ~CT106/CTS2*
•
The signal ~CT108-2/DTR2* must be configured at low level.
•
Other signals and their multiplexes are not available.
•
Please refer to technical appendixes in the AT commands User Guide [7]
for more information.
For use with 2-wire serial interface
•
This case is possible for connected external chip, but not recommended
(and forbidden for AT command or modem use)
•
The flow control mechanism has to be managed at the customer side.
•
CT103/TXD2*, CT104/RXD2*
•
The signals ~CT105/RTS2*, ~CT106/CTS2* are not used, you must
configure the AT command (AT+IFC=0,0 see AT commands User Guide
[7]).
© Confidential
Page: 40 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
•
The signal ~CT105/RTS2* must be configured at low level.
•
Other signals and their multiplexes are not available.
•
Please refer to technical appendixes in the AT commands User Guide [7]
for more information.
3.8 SIM Interface
The Subscriber Identification Module (SIM) may be directly connected to the
Q2686 Wireless CPU® via this dedicated interface.
3.8.1 General Description
The five signals are:
•
•
•
•
•
SIM-VCC: SIM power supply
~SIM-RST: reset
SIM-CLK: clock
SIM-IO: I/O port
SIMPRES: SIM card detect
The SIM interface controls a 3V/1V8 SIM. This interface is fully compliant with
the GSM 11.11 recommendations concerning SIM functions.
SIM interface pin description
Signal
Pin
number
I/O
I/O type
Reset
state
Description
Multiplexed
with
SIM-CLK
14
2V9 / 1V8
SIM Clock
Not mux
~SIM-RST
13
2V9 / 1V8
SIM Reset
Not mux
SIM-IO
11
I/O
2V9 / 1V8
*Pull-up
SIM Data
Not mux
SIM-VCC
2V9 / 1V8
SIM Power
Supply
Not mux
SIMPRES
12
1V8
SIM Card
Detect
GPIO18
*SIM-IO pull-up is about 10 k Ω.
See Chapter 3.3 “Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and Reset state definition.
© Confidential
Page: 41 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
SIM interface electrical characteristics
Parameter
Conditions
Minim.
SIM-IO VIH
IIH = ± 20μA
SIM-IO VIL
IIL = 1mA
~SIM-RST, SIM-CLK
Source current = 20μA
0.9xSIMVCC
SIM-IO VOH
Source current = 20μA
0.8xSIMVCC
~SIM-RST, SIM-IO, SIMCLK
Sink current =
Typ
Maxim. Unit
0.7xSIMVCC
0.4
VOH
VOL
SIM-VCC Output Voltage
0.4
-200μA
SIMVCC = 2.9V
2.84
2.9
2.96
1.74
1.8
1.86
10
mA
IVCC= 1mA
SIMVCC = 1.8V
IVCC= 1mA
SIM-VCC current
VBATT = 3.6V
SIM-CLK Rise/Fall Time
Loaded with 30pF
20
ns
~SIM-RST, Rise/Fall Time
Loaded with 30pF
20
ns
SIM-IO Rise/Fall Time
Loaded with 30pF
0.7
SIM-CLK Frequency
Loaded with 30pF
μs
3.25
MHz
Note:
When SIMPRES is used, a low to high transition means that the SIM card is
inserted and a high to low transition means that the SIM card is removed.
© Confidential
Page: 42 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.9 General Purpose Input/Output
The Q2686 Wireless CPU® provides up to 44 General Purpose I/Os, used to
control any external device such as an LCD or a Keyboard backlight.
All I/Os highlighted in grey are 1V8, whereas the others (not highlighted in
grey) are 2V8.
GPIO pin description
Signal
Pin
number
Reserved
42
GPIO0
43
I/O
2V8
Undefined
32kHz**
GPIO1
51
I/O
1V8
Not mux
GPIO2
53
I/O
1V8
Not mux
GPIO3
50
I/O
1V8
INT0
GPIO4
59
I/O
1V8
Pull-up
COL0
GPIO5
60
I/O
1V8
Pull-up
COL1
GPIO6
61
I/O
1V8
Pull-up
COL2
GPIO7
62
I/O
1V8
Pull-up
COL3
GPIO8
63
I/O
1V8
Pull-up
COL4
GPIO9
68
I/O
1V8
ROW0
GPIO10
67
I/O
1V8
ROW1
GPIO11
66
I/O
1V8
ROW2
GPIO12
65
I/O
1V8
ROW3
GPIO13
64
I/O
1V8
ROW4
GPIO14
31
I/O
1V8
CT103 / TXD2
GPIO15
30
I/O
1V8
CT104 / RXD2
GPIO16
32
I/O
1V8
~CT106 / CTS2
GPIO17
33
I/O
1V8
~CT105 / RTS2
GPIO18
12
I/O
1V8
SIMPRES
GPIO19
45
I/O
2V8
Not mux
GPIO20
48
I/O
2V8
Undefined
Not mux
GPIO21
47
I/O
2V8
Undefined
Not mux
I/O
I/O type*
Reset state
Multiplexed with
Do not used*
GPIO22
57
I/O
2V8
Not mux*
GPIO23
55
I/O
2V8
Not mux
© Confidential
Page: 43 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Signal
Pin
number
I/O
I/O type*
Reset state
Multiplexed with
GPIO24
58
I/O
2V8
Not mux
GPIO25
49
I/O
2V8
INT1
44
I/O
Open
drain
46
I/O
Open
drain
GPIO28
23
I/O
2V8
SPI1-CLK
GPIO29
25
I/O
2V8
SPI1-IO
GPIO30
24
I/O
2V8
SP1-I
GPIO31
22
I/O
2V8
GPIO32
26
I/O
2V8
SPI2-CLK
GPIO33
27
I/O
2V8
SPI2-IO
GPIO34
29
I/O
2V8
SP2-I
GPIO35
28
I/O
2V8
GPIO36
71
I/O
2V8
CT103 / TXD1
GPIO37
73
I/O
2V8
CT104 / RXD1
GPIO38
72
I/O
2V8
~CT105 / RTS1
GPIO39
75
I/O
2V8
~CT106 / CTS1
GPIO40
74
I/O
2V8
~CT107 / DSR1
GPIO41
76
I/O
2V8
~CT108-2 / DTR1
GPIO42
69
I/O
2V8
Undefined
~CT125 / RI1
GPIO43
70
I/O
2V8
Undefined
~CT109 / DCD1
GPIO26
GPIO27
SCL1
SDA1
See Chapter 3.3, “Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and Reset state definition.
®
If a Bluetooth module is used with the Q2686 Wireless CPU , these GPIOs must be reserved.
**
With the Open AT® Software Suite v2: see “AT commands User Guide ” [7].
© Confidential
Page: 44 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.10
Analog to Digital Converter
Two Analog to Digital Converter inputs are provided by the Q2686 Wireless
CPU®. The converters are more than 10-bit resolution, ranging from 0 to 2V.
ADC1 / BAT-TEMP input can be used, typically, to monitor external
temperature, useful for safety power off in case of application over heating (for
Li-Ion battery).
ADC2 input can be used for customer application.
ADC pin description
Signal
Pin number
I/O
I/O type
Description
ADC1/BAT-TEMP*
20
Analog
A/D converter
ADC2
21
Analog
A/D converter
* This input can be used for a battery charging temperature sensor,
see Chapter 3.13, “Battery Charging interface“.
ADC electrical characteristics
Parameter
Min
Maximum output code
Sampling period
Input signal range
Input
impedance
Typ
Max
1635
Unit
LSB
0,5
31
ADC1/BATTEMP
1M
Ω
ADC2
1M
Ω
Sampling rate only for ADC2 and Open AT® application.
© Confidential
Page: 45 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.11
Analog Audio Interface
Two different microphone inputs and two different speaker outputs are
supported. The Q2686 INSIM
Wireless CPU® also includes an echo
cancellation feature, which allows hands-free function
In some cases, ESD protection must be added on the audio interface lines.
3.11.1 Microphone Features
The connection can be either differential or single-ended but using a differential
connection in order to reject common mode noise and TDMA noise is strongly
recommended. When using a single-ended connection, be sure to have a very
good ground plane, a very good filtering as well as shielding in order to avoid
any disturbance on the audio path.
The gain of MIC inputs is internally adjusted and can be tuned using an AT
command.
Both can be configured in differential or single ended.
The MIC2 inputs already include the biasing for an electret microphone
allowing an easy connection.
3.11.1.1 MIC1 Microphone Inputs
By default, the MIC1 inputs are single-ended but it can be configured in
differential.
The MIC1 inputs do not include an internal bias . The MIC1 input needs to
have an external biasing if an electret microphone is used.
AC coupling is already embedded in the Wireless Microprocessor®.
Equivalent circuits of MIC1
DC equivalent circuit
MIC1P
MIC1N
© Confidential
AC equivalent circuit
DC
Blocked
Z1
MIC1P
MIC1N
Z1
GND
Page: 46 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Electrical Characteristics of MIC1
Parameters
Min
DC Characteristics
AC Characteristics
200 Hz 3.2V
2.8V < VBATT <
3.2V
VBATT > 3.2V
Wireless
CPU® ON
Q2686 Wireless CPU®
status
LED0 status
OFF
Wireless CPU® is OFF
Pre-charge flash
Wireless CPU® is OFF,
LED ON for 100
ms, OFF for 900
ms
Pre-charging mode
Permanent
Wireless CPU® switched
ON, not registered on the
network
Slow flash
Wireless CPU® switched
ON, registered on the
network
LED ON for 200
ms, OFF for 2 s
Quick flash
LED ON for 200
ms, OFF for 600
ms
Very quick flash
LED ON for
100ms, OFF for
200ms
(charger must be
connected on CHG-IN to
activate this mode)
Wireless CPU® switched
ON, registered on the
network, communication in
progress
Wireless CPU® switched
on, software downloaded
is either corrupted or noncompatible ("BAD
SOFTWARE")
Pin description
Signal
Pin
number
I/O
I/O type
Reset state
Description
LED0
17
Open Drain
Output
1 and
Undefined
LED driving
See Chapter 3.3, “Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and Reset state definition.
© Confidential
Page: 69 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
© Confidential
Page: 70 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Figure 13: LED0 state during RESET and Initialization time
LED0 state is high during the RESET time and undefined during the software
initialization time. During software initialization time, for 2 seconds max after
RESET cancellation, the LED0 signal is toggling and does not provide Wireless
CPU® status. After the 2s period, the LED0 provides the true status of the
Wireless CPU®.
Electrical characteristics of the signal
Parameter
Maximum
Unit
VOL
0.4
IOUT
mA
© Confidential
Condition
Minimum
Typ
Page: 71 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.21
Digital Audio Interface (PCM)
Digital audio interface (PCM) interface mode allows connectivity with audio
standard peripherals. It can be used, for example, to connect an external audio
codec.
The programmability of this mode allows to address a large range of audio
peripherals.
PCM features:
•
IOM-2 compatible device on physical level
•
Master mode only with 6 slots by frame, user only on slot 0
•
Bit rate single clock mode at 768kHz only
•
16 bits data word MSB first only
•
Linear Law only (no compression law)
•
Long Frame Synchronization only
•
Push-pull configuration on PCM-OUT and PCM-IN
The digital audio interface configuration cannot differ from that specified
above.
3.21.1
Description
The PCM interface consists of 4 wires:
•
PCM-SYNC (output): The frame synchronization signal delivers an 8 kHz
frequency pulse that synchronizes the frame data in and the frame data
out.
•
PCM-CLK (output): The frame bit clock signal controls data transfer with
the audio peripheral.
•
PCM-OUT (output): The frame “data out” relies on the selected
configuration mode.
•
PCM-IN (input): The frame “data in” relies on the selected configuration
mode.
© Confidential
Page: 72 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
ing
gin e
Be fram
do
En
Tsync_high
am
f fr
Tsync_low
PCM-SYNC
PCM-CLK
PCM-IN
SLOT 5
SLOT 0
SLOT 1
SLOT 5
SLOT 0
SLOT 0
SLOT 1
SLOT 5
SLOT 0
PCM-OUT
SLOT 5
Figure 14: PCM frame waveform
PCM-SYNC
TCLK-cycle
TSYNC-CLK
PCM-CLK
TIN-setup
TIN-hold
PCM-IN
SLOT 5 bit 0
SLOT 0 bit 15
SLOT 0 bit 14
SLOT 0 bit 13
SLOT 0 bit 14
SLOT 0 bit 13
TOUTdelay
PCM-OUT
SLOT 5 bit 0
SLOT 0 bit 15
Figure 15: PCM sampling waveform
© Confidential
Page: 73 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
AC characteristics
Signal
Description
Minimum
Typ
Maximum
Tsync_low +
Tsync_high
PCM-SYNC period
125
μs
Tsync_low
PCM-SYNC low time
93
μs
Tsync_high
PCM-SYNC high time
32
μs
TSYNC-CLK
PCM-SYNC to PCM-CLK time
-154
ns
TCLK-cycle
PCM-CLK period
1302
ns
TIN-setup
PCM-IN setup time
50
ns
TIN-hold
PCM-IN hold time
50
ns
TOUT-delay
PCM-OUT delay time
20
Unit
ns
Pin description of the PCM interface
Signal
Pin
number
I/O
I/O type
Reset state
Description
PCM-SYNC
77
1V8
Pull-down
Frame synchronization 8
kHz
PCM-CLK
79
1V8
Pull-down
Data clock
PCM-OUT
80
1V8
Pull-up
Data output
PCM-IN*
78
1V8
Pull-up
Data input
*When using analog audio interface, the PCM_IN signal should be in HZ
See Chapter 3.3, “Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and Reset state definition.
© Confidential
Page: 74 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.22
USB 2.0 Interface
A 4-wire USB slave interface is available which complies with USB 2.0 protocol
signaling. But it is not compliant with the electrical interface, due to the 5V of
VPAD-USB.
The USB interface signals are VPAD-USB, USB-DP, USB-DM and GND.
USB interface features:
•
12Mbit/s full-speed transfer rate
•
3.3V typ compatible
•
USB Softconnect feature
•
Download feature is not supported by USB
•
CDC 1.1 – ACM compliant
NOTE: A 5V to 3.3V typ voltage regulator is needed between the external
interface power in line (+5V) and the Wireless CPU® line (VPAD-USB).
Pin description of the USB interface
Signal
Pin
number
I/O
I/O type
Description
VPAD-USB
52
VPAD_USB
USB Power Supply
USB-DP
54
I/O
VPAD_USB
Differential data interface positive
USB-DM
56
I/O
VPAD_USB
Differential data interface negative
Electrical characteristics of the signals
Parameter
Min
Typ
Max
Unit
VPAD-USB, USB-DP, USB-DM
3.3
3.6
VPAD-USB Input current consumption
© Confidential
mA
Page: 75 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
3.23
RF Interface
The impedance is 50 Ω nominal and the DC impedance is 0 Ω.
3.23.1
RF Connections
U.FL Connector
A wide variety of cables fitted with U.FL connectors is offered by different
suppliers.
Soldered solution
The soldered solution will preferably be based on an RG178 coaxial cable.
IMP connector
This connector is dedicated to board-to-board applications and must be
soldered on the customer board. The supplier is Radiall (reference: R107
064 900).
Notes:
•
The Q2686 Wireless CPU® does not support an antenna switch for a car
kit, but this function can be implemented externally and can be driven
using a GPIO.
•
The antenna cable and connector should be selected in order to
minimize losses in the frequency bands used for GSM 850/900MHz and
1800/1900MHz.
•
0.5dB may be considered as the maximum value of loss between the
Wireless CPU® and an external connector.
•
For mounting, assembly and handling of the IMP connector, please
contact the supplier, Radiall, directly. Wavecom cannot provide customer
support for use of this connector.
3.23.2
RF Performance
RF performance is compliant with the ETSI GSM 05.05 recommendation.
The main Receiver parameters are:
•
•
•
•
•
•
•
•
GSM850 Reference Sensitivity = -104 dBm Static & TUHigh
E-GSM900 Reference Sensitivity = -104 dBm Static & TUHigh
DCS1800 Reference Sensitivity = -102 dBm Static & TUHigh
PCS1900 Reference Sensitivity = -102 dBm Static & TUHigh
Selectivity @ 200 kHz: > +9 dBc
Selectivity @ 400 kHz: > +41 dBc
Linear dynamic range: 63 dB
Co-channel rejection: >= 9 dBc
© Confidential
Page: 76 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Transmitter parameters:
•
•
•
•
Maximum output power (EGSM & GSM850): 33 dBm +/- 2 dB at ambient
temperature
Maximum output power (GSM1800 & PCS1900): 30 dBm +/- 2 dB at
ambient temperature
Minimum output power (EGSM & GSM850): 5 dBm +/- 5 dB at ambient
temperature
Minimum output power (GSM1800 & PCS1900): 0 dBm +/- 5 dB at
ambient temperature
3.23.3
Antenna Specifications
The antenna must meet the following requirements:
• The optimum operating frequency depends on the application. Either a
dual-band or quad-band antenna will operate in these frequency bands and
have the following characteristics:
Q2686
Characteristic
E-GSM 900
DCS 1800
GSM 850
PCS 1900
TX Frequency
880 to
915 MHz
1710 to
1785 MHz
824 to
849 MHz
1850 to
1910 MHz
RX Frequency
925 to
960 MHz
1805
to 1880 MHz
869 to
894 MHz
1930 to
1990 MHz
Impedance
VSWR
50 Ω
Rx max
1.5:1
Tx max
1.5:1
Typical
radiated gain
© Confidential
0dBi in one direction at least
Page: 77 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
4 Technical Specifications
4.1 General Purpose Connector Pin-out Description
Description
I/O*
Signal Name
Voltage
Mux
Nominal
Pin
Number
Signal Name
Nominal
Voltage
I/O*
Description
Power
Supply
Power
Supply
Mux
ADC0/
ADC0/
VBATT
VBATT
ADC0/
ADC0/
VBATT
VBATT
CHG-IN
CHG-IN
Charger
input
CHG-IN
CHG-IN
Charger
input
SIM-VCC
10
VCC_2V8
VCC_2V8
2.8V Supply
Output
1V8 or
3V
SIM-IO
11
12
SIMPRES
VCC_1V8
SIM
Detection
1V8 or
3V
~SIMRST
13
14
SIM-CLK
1V8 or
3V
SIM Clock
Buzzer
Output
Open
Drain
BUZZER
15
16
BOOT
VCC_1V8
Not Used
LED0
Output
Open
Drain
LED0
17
18
~RESET
VCC_1V8
I/O
RESET Input
ON / ~OFF
Control
VBATT
ON/~OFF
19
20
BATTEMP
Analog
Analog
temperature
Analog to
Digital Input
Analog
ADC2
21
22
GPIO31
VCC_2V8
I/O
SPI1 Clock
VCC_2V8
GPIO28
SPI1-CLK
23
24
SPI1-I
GPIO30
VCC_2V8
SPI1 Data
Input
SPI1 Data
Input /
Output
I/O
VCC_2V8
GPIO29
SPI1-IO
25
26
SPI2-CLK
GPIO32
VCC_2V8
SPI2 Clock
SPI2 Data
Input /
Output
I/O
VCC_2V8
GPIO33
SPI2-IO
27
28
GPIO35
VCC_2V8
I/O
SPI2 Data
Input
VCC_2V8
GPIO34
SPI2-I
29
30
CT104RXD2
GPIO15
VCC_1V8
Auxiliary
RS232
Receive
Auxiliary
RS232
Transmit
VCC_1V8
GPIO14
CT103TXD2
31
32
~CT106CTS2
GPIO16
VCC_1V8
Auxiliary
RS232 Clear
To Send
Auxiliary
RS232
Request To
Send
VCC_1V8
GPIO17
~CT105RTS2
33
34
MIC2N
Analog
Micro 2
Input
Negative
Speaker 1
Output
Positive
Analog
SPK1P
35
36
MIC2P
Analog
Micro 2
Input
Positive
Power
Supply
VBATT
Power
Supply
VBATT
1.8V Supply
Output
VCC_1V8
RTC Battery
connection
I/O
SIM Power
Supply
ADC0/
VCC_1V8
BATRTC
BAT-RTC
1V8 or
3V
SIM Data
I/O
SIM reset
Output
VBATT
ADC0/
VBATT
© Confidential
GPIO18
Page: 78 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Description
I/O*
Signal Name
Voltage
Mux
Nominal
Pin
Number
Signal Name
Nominal
Voltage
I/O*
Description
Mux
Speaker 1
Output
Negative
Analog
SPK1N
37
38
MIC1N
Analog
Micro 1
Input
Negative
Speaker 2
Output
Positive
Analog
SPK2P
39
40
MIC1P
Analog
Micro 1
Input
Positive
Speaker 2
Output
Negative
Analog
SPK2N
41
42
Reserved
**
I/O
VCC_2V8
GPIO0
43
44
SCL1
GPIO26
Open
Drain
I²C Clock
I/O
VCC_2V8
GPIO19
45
46
SDA1
GPIO27
Open
Drain
I/O
I²C Data
I/O
VCC_2V8
GPIO21
47
48
GPIO20
VCC_2V8
I/O
VCC_2V8
GPIO25
INT1
49
50
INT0
VCC_1V8
Interruption
0 Input
I/O
VCC_1V8
**
GPIO1
51
52
VPADUSB
VPADUSB
USB Power
supply input
I/O
VCC_1V8
**
GPIO2
53
54
USB-DP
VPADUSB
I/O
USB Data
I/O
VCC_2V8
**
GPIO23
55
56
USB-DM
VPADUSB
I/O
USB Data
I/O
VCC_2V8
**
GPIO22
57
58
GPIO24
VCC_2V8
I/O
Keypad
column 0
I/O
VCC_1V8
GPIO4
COL0
59
60
COL1
GPIO5
VCC_1V8
I/O
Keypad
column 1
Keypad
column 2
I/O
VCC_1V8
GPIO6
COL2
61
62
COL3
GPIO7
VCC_1V8
I/O
Keypad
column 3
Keypad
column 4
I/O
VCC_1V8
GPIO8
COL4
63
64
ROW4
GPIO13
VCC_1V8
I/O
Keypad Row
Keypad
Row 3
I/O
VCC_1V8
GPIO12
ROW3
65
66
ROW2
GPIO11
VCC_1V8
I/O
Keypad Row
Keypad
Row 1
I/O
VCC_1V8
GPIO10
ROW1
67
68
ROW0
GPIO9
VCC_1V8
I/O
Keypad Row
Main RS232
Ring
Indicator
VCC_2V8
GPIO42
~CT125RI
69
70
~CT109DCD1
GPIO43
VCC_2V8
Main RS232
Data Carrier
Detect
Main RS232
Transmit
VCC_2V8
GPIO36
CT103TXD1
71
72
~CT105RTS1
GPIO38
VCC_2V8
Main RS232
Request To
Send
Main RS232
Receive
VCC_2V8
GPIO37
CT104RXD1
73
74
~CT107DSR1
GPIO40
VCC_2V8
Main RS232
Data Set
Ready
Main RS232
Clear To
Send
VCC_2V8
GPIO39
~CT106CTS1
75
76
~CT1082-DTR1
GPIO41
VCC_2V8
Main RS232
Data
Terminal
Ready
PCM Frame
Synchro
VCC_1V8
PCMSYNC
77
78
PCM-IN
VCC_1V8
PCM Data
Input
PCM Clock
VCC_1V8
PCMCLK
79
80
PCMOUT
VCC_1V8
PCM Data
Output
NC-1
81
82
Reserved
Interruption
1 Input
32kHz
© Confidential
GPIO3
Page: 79 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Description
I/O*
Signal Name
Voltage
Mux
Nominal
Pin
Number
Signal Name
Nominal
NC-3
83
84
NC-2
NC-5
85
86
NC-4
NC-7
87
88
NC-6
NC-9
89
90
NC-8
NC-11
91
92
NC-10
NC-13
93
94
NC-12
NC-15
95
96
NC-14
NC-17
97
98
NC-16
NC-19
99
100
NC-18
Voltage
I/O*
Description
Mux
The I/O direction information is only for the nominal signal. When the signal is configured in
GPIO, it can always be an Input or an Output.
**
For more information about the multiplexing of these signals, see “General purpose
input /output”, section 3.9
© Confidential
Page: 80 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
4.2 Labeling Correspondence between Q2686 and Open
AT® Software Suite v2
Each signal has strictly the same characteristics: It is only a new designation in
view to conform with the AT Command User Guide [7].
Signal Name
Signal Name
Description
I/O
PIN
number
Q2686 with SW
preceding Open AT®
Software Suite v2
Q2686 with SW
from Open AT®
Software Suite v2
+VBATT
ADC0 / +VBATT
Possibility to read VBATT
value using the ADC0
1,2,2,4
BAT-TEMP
ADC1/BATTEMP
Possibility to read either
the Battery’s temperature
or something else
customer specific
20
AUX-ADC
ADC2
Analog to Digital converter
21
SCL
SCL1
44
SDA
SDA1
I/O
46
FLASHLED
LED0
17
~SPI1_CS
GPIO31 /
22
28
SPI1 Load
~SPI2_CS
GPIO35 /
SPI2-Load
BUZZ-OUT
BUZZER0
15
GPIO44
GPIO0
I/O
43
© Confidential
Page: 81 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
4.3 Environmental Specifications
Wavecom specifies the following temperature range for the Q2686 product.
The Q2686 Wireless CPU® is compliant with the following operating class.
Conditions
Operating / Class A
Operating / Class B
Storage
Temperature range
-20 °C to +55°C
-30 °C to +85°C
-40 °C to +85°C
Function Status Classification:
Class A:
The Wireless CPU® remains fully functional, meeting GSM performance criteria
in accordance with ETSI requirements, across the specified temperature range.
Class B:
The Wireless CPU® remains fully functional, across the specified temperature
range. Some GSM parameters may occasionally deviate from the ETSI specified
requirements and this deviation does not affect the ability of the Wireless CPU®
to connect to the cellular network and function fully, as it does within the Class
A range.
Q2686
ENVIRONNEMENTAL CLASSES
TYPE OF TEST
STANDARDS
STORAGE
Class 1.2
TRANSPORTATION
Class 2.3
Cold
IEC 68-2.1
Ab test
-25° C
72 h
-40° C
72 h
-20° C (GSM900)
16 h
-10° C (GSM1800/1900) 16h
Dry heat
IEC 68-2.2
Bb test
+70° C
72 h
+70° C
72 h
+55° C
Change of temperature
IEC 68-2.14
Na/Nb test
Damp heat
cyclic
IEC 68-2.30
Db test
+30° C
2 cycles
90% - 100% RH
variant 1
+40° C
2 cycles
90% - 100% RH
variant 1
+40° C
2 cycles
90% - 100% RH
variant 1
Damp heat
IEC 68-2.56
Cb test
+30° C
+40° C
+40° C
Sinusoidal vibration
IEC 68-2.6
Fc test
5 - 62 Hz :
5 mm / s
62 - 200Hz :
2 m / s2
3 x 5 sweep cycles
Random vibration
wide band
IEC 68-3.36
Fdb test
-40° / +30° C
4 days
5 - 20 Hz :
20 - 500Hz :
5 cycles
t1 = 3 h
4 days
0.96 m2 / s3
- 3 dB / oct
3 x 10 min
OPERATING (PORT USE)
Class 7.3
16 h
-20° / +30° C (GSM900) 3 cycles
-10° / +30° C (GSM1800/1900):
3 cycles
t1 = 3 h
4 days
10 -12 Hz :
0.96 m2 / s3
12 - 150Hz :
- 3 dB / oct
3 x 30 min
Figure 16: Environmental classes
© Confidential
Page: 82 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
4.4 Conformance with ATEX 94/9/CE directive
To evaluate the conformity of the final product with ATEX 94/9/CE directive the
following datas must be taken into account:
• Sum of all capacitors
: 84μF
• Sum of all inductances
: 12μH
4.5 Mechanical Specifications
4.5.1 Physical Characteristics
The Q2686 Wireless CPU® has a complete self-contained shield.
•
Overall dimensions
: 32.2x40x4 mm (except shielding pins)
•
Weight
: <10 g
4.5.2 Mechanical Drawings
The mechanical specifications of the Q2686 Wireless CPU® are shown in the
following page.
© Confidential
Page: 83 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Figure 17: Mechanical drawing
© Confidential
Page: 84 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
5 Connector and Peripheral Device References
5.1 General Purpose Connector
The GPC is a 100-pin connector with 0.5mm pitch from the from PANASONIC
Group's P5K series, with the following reference:
AXK600347BN1
The matting connector has the following reference:
AXK500147BN1J
The stacking height is 3.0 mm.
Wavecom recommends that you use the AXK500147BN1J connector for your
application to benefit from Wavecom’s prices. For more information, contact
Wavecom, specifying the Wavecom connector reference: WM18868.
For further details see the GPC data sheets in the appendix. More information
is also available from http://www.panasonic.com/host/industrl.html
5.2 SIM Card Reader
•
ITT CANNON CCM03 series (see http://www.ittcannon.com )
•
AMPHENOL C707 series (see http://www.amphenol.com )
•
JAE (see http://www.jae.com )
•
MOLEX 99228-0002 (connector) / MOLEX 91236-0002 (holder) (see
http://www.molex.com)
5.3 Microphone
Possible suppliers:
•
HOSIDEN
•
PANASONIC
•
PEIKER
© Confidential
Page: 85 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
5.4 Speaker
Possible suppliers:
•
SANYO
•
HOSIDEN
•
PRIMO
•
PHILIPS
5.5 Antenna Cable
A wide variety of cables fitted with UF-L connectors is offered by HIROSE:
ƒ
UF-L pigtails, Ex: Ref = U.FL-2LP(V)-04-A-(100)
ƒ
UF-L Ref = U.FL-R-SMT
ƒ
UF-L cable assemblies,
ƒ
Between series cable assemblies.
More information is also available from http://www.hirose-connectors.com/.
A coaxial cable can also be soldered on the RF pad. The following references
have been certified for mounting on the Q2686 Wireless CPU®:
•
RG178
•
RG316
5.6 RF Board-to-board Connector
The supplier for the IMP connector is Radiall (http://www.radiall.com),
with the following reference:
•
R107 064 900.
5.7 GSM Antenna
GSM antennas and support for antenna adaptation can be obtained from
manufacturers such as:
•
ALLGON (http://www.allgon.com )
•
IRSCHMANN (http://www.hirschmann.com/ )
© Confidential
Page: 86 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
6 Design Guidelines
The purpose of the following paragraphs is to give design guidelines.
6.1 HARDWARE and RF
6.1.1 EMC Recommendations
The EMC tests must be performed on the application as soon as possible to
detect any potential problems.
When designing, special attention should be paid to:
•
Possible spurious emission radiated by the application to the RF receiver
in the receiver band
•
ESD protection is mandatory on all signals which have external
accessibility (typically human accessibility). See Q2686 Wireless CPU®
Customer Design Guidelines WM_PRJ_Q2686_PTS_003 [10] for ESD
protection samples.
Typically, ESD protection is mandatory for the:
ƒ
SIM (if accessible from outside)
ƒ
Serial link
•
EMC protection
emissions)
•
Biasing of the microphone inputs
•
Length of the SIM interface lines (preferably <10cm)
•
Ground plane: Wavecom recommends a common ground plane for
analog/digital/RF grounds.
•
A metallic case or plastic casing with conductive paint are recommended
on
audio
input/output
(filters
against
900MHz
Note:
The Wireless CPU® does not include any protection against over-voltage.
© Confidential
Page: 87 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
6.1.2 Power Supply
The power supply is one of the key issues in the design of a GSM terminal.
A weak power supply design could, in particular, affect:
•
EMC performance
•
The emission spectrum
•
The phase error and frequency error
WARNING:
Careful attention should be paid to:
•
The quality of the power supply: low ripple, PFM or PSM systems should
be avoided (PWM converter preferred).
•
Capacity to deliver high current peaks in a short time (pulsed radio
emission).
© Confidential
Page: 88 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
6.1.3 Layout Requirement
Figure 18: Layout requirement
© Confidential
Page: 89 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
6.1.4 Antenna
WARNING:
Wavecom strongly recommends working with an antenna manufacturer either
to develop an antenna adapted to the application or to adapt an existing
solution to the application.
Both the mechanical and electrical antenna adaptation is one of the key issues
in the design of the GSM terminal.
6.2 Mechanical Integration
Attention should be paid to:
•
Antenna cable integration (bending, length, position, etc)
•
Leads of the Wireless CPU® to be soldered to the Ground plane
6.3 Operating System Upgrade
The Q2686 Wireless CPU® Operating System is stored in flash memory and can
easily be upgraded.
IMPORTANT:
In order to follow regular changes in the GPRS standard and to offer a state-ofthe-art Operating System, Wavecom recommends that the application
designed around a Wireless CPU® (or Wireless CPU® based product) allow easy
Operating System upgrades on the Wireless CPU® via the standard X-modem
protocol. Therefore, the application shall either allow a direct access to the
Wireless CPU® serial link through an external connector or implement any
mechanism allowing the Wireless CPU® Operating System to be downloaded
via X-modem.
The Operating System file can be downloaded to the modem using the Xmodem protocol. The AT+WDWL command allows the download process to
be launched (see the description in the AT Command User Guide [7]).
The serial signals required to proceed with X-modem downloading are:
Rx, Tx, RTS, CTS and GND.
The Operating System file can also be downloaded to the modem using the
DOTA (download over the air) feature. This feature is available with the Open
AT® interface. For more details, please, refer to the Open AT® documentation
listed in section 1.1.1.
© Confidential
Page: 90 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
7 Appendix
7.1 Standards and Recommendations
GSM ETSI, 3GPP, GCF and NAPRD03 recommendations for Phase II & FCC.
Specification Reference
Title
3GPP TS 45.005 v5.5.0
(2002-08) Release 5
Technical Specification Group GSM/EDGE. Radio Access
Network; Radio transmission and reception
GSM 02.07 V8.0.0
(1999-07)
Digital cellular telecommunications system (Phase 2+);
GSM 02.60 V8.1.0
(1999-07)
Digital cellular telecommunications system (Phase 2+);
GSM 03.60 V7.9.0
(2002-09)
Technical Specification Group Services and System
Aspects;
Mobile Stations (MS) features (GSM 02.07
version 8.0.0 Release 1999)
General Packet Radio Service (GPRS);
Service description, Stage 1 (GSM 02.60 version 8.1.0
Release 1999)
Digital cellular telecommunications system (Phase 2+);
General Packet Radio Service (GPRS);
Service description; Stage 2 (Release 1998)
3GPP TS 43.064 V5.0.0
(2002-04)
Technical Specification Group GERAN; Digital cellular
telecommunications system (Phase 2+); General Packet
Radio Service (GPRS); Overall description of the GPRS
radio interface; Stage 2 (Release 5)
3GPP TS 03.22 V8.7.0
(2002-08)
Technical Specification Group GSM/EDGE. Radio Access
Network; Functions related to Mobile Station (MS) in idle
mode and group receive mode; (Release 1999)
3GPP TS 03.40 V7.5.0
(2001-12)
Technical Specification Group Terminals;
Technical realization of the Short Message Service (SMS)
(Release 1998)
3GPP TS 03.41 V7.4.0
(2000-09)
Technical Specification Group Terminals; Technical
realization of Cell Broadcast Service (CBS)
(Release 1998)
ETSI EN 300 903 V8.1.1 Digital cellular telecommunications system (Phase 2+);
(2000-11)
Transmission planning aspects of the speech service in the
GSM
Public Land Mobile Network (PLMN) system
(GSM 03.50 version 8.1.1 Release 1999)
© Confidential
Page: 91 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Specification Reference
Title
3GPP TS 04.06 V8.2.1
(2002-05)
Technical Specification Group GSM/EDGE Radio Access
Network; Mobile Station - Base Station System
(MS - BSS) interface; Data Link (DL) layer specification
(Release 1999)
3GPP TS 04.08 V7.18.0
(2002-09)
Technical Specification Group Core Network;
Digital cellular telecommunications system (Phase 2+);
Mobile radio interface layer 3 specification (Release
1998)
3GPP TS 04.10 V7.1.0
(2001-12)
Technical Specification Group Core Networks;
3GPP TS 04.11 V7.1.0
(2000-09)
Technical Specification Group Core Network; Digital
cellular telecommunications system (Phase 2+);
Point-to-Point (PP) Short Message Service (SMS)
support on mobile radio interface
Mobile radio interface layer 3 Supplementary services
specification; General aspects (Release 1998)
(Release 1998)
3GPP TS 45.005 v5.5.0
(2002-08)
Technical Specification Group GSM/EDGE. Radio
Access Network; Radio transmission and reception
(Release 5)
3GPP TS 45.008 V5.8.0
(2002-08)
Technical Specification Group GSM/EDGE
3GPP TS 45.010 V5.1.0
(2002-08)
Technical Specification Group GSM/EDGE
3GPP TS 46.010 V5.0.0
(2002-06)
Technical Specification Group Services and System
Aspects;
Radio Access Network; Radio subsystem link control
(Release 5)
Radio Access Network; Radio subsystem
synchronization (Release 5)
Full rate speech; Transcoding (Release 5)
3GPP TS 46.011 V5.0.0
(2002-06)
Technical Specification Group Services and System
Aspects;
Full rate speech; Substitution and muting of lost
frames for
full rate speech channels (Release 5)
3GPP TS 46.012 V5.0.0
(2002-06)
Technical Specification Group Services and System
Aspects;
Full rate speech; Comfort noise aspect for full rate
speech traffic channels (Release 5)
© Confidential
Page: 92 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
Specification Reference
Title
3GPP TS 46.031 V5.0.0
(2002-06)
Technical Specification Group Services and System
Aspects;
Full rate speech; Discontinuous Transmission (DTX) for
full rate speech traffic channels (Release 5)
3GPP TS 46.032 V5.0.0
(2002-06)
Technical Specification Group Services and System
Aspects;
Full rate speech; Voice Activity Detector (VAD) for full
rate speech traffic channels (Release 5)
TS 100 913V8.0.0
(1999-08)
Digital cellular telecommunications system (Phase 2+);
GSM 09.07 V8.0.0
(1999-08)
Digital cellular telecommunications system (Phase 2+);
3GPP TS 51.010-1 v5.0.0
(2002-09)
Technical Specification Group GSM/EDGE ; Radio
Access Network ;Digital cellular telecommunications
system (Phase 2+);Mobile Station (MS) conformance
specification; Part 1: Conformance specification
(Release 5)
3GPP TS 51.011 V5.0.0
(2001-12)
Technical Specification Group Terminals; Specification
of the Subscriber Identity Module - Mobile Equipment
(SIM - ME) interface (Release 5)
ETS 300 641 (1998-03)
Digital cellular telecommunications system (Phase 2);
General on Terminal Adaptation Functions (TAF) for
Mobile Stations (MS) (GSM 07.01 version 8.0.0
Release 1999)
General requirements on interworking between the
Public Land Mobile Network (PLMN) and the Integrated
Services Digital Network (ISDN) or Public Switched
Telephone Network (PSTN) (GSM 09.07 version 8.0.0
Release 1999)
Specification of the 3 volt Subscriber Identity Module Mobile Equipment (SIM-ME) interface (GSM 11.12
version 4.3.1)
GCF-CC V3.7.1 (2002-08)
Global Certification Forum – Certification criteria
NAPRD03 V2.6.0 (2002-06) North America Permanent Reference Document for
PTCRB tests
The Q2686 Wireless CPU® connected on a development kit board application is
certified to be in accordance with the following Rules and Regulations of the
Federal Communications Commission (FCC).
Power listed on the Gant is conducted for Part 22 and conducted for Part 24
© Confidential
Page: 93 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
This device contains GSM, GPRS Class 10 functions in the 900 and 1800MHz
Band, which are not operational in U.S. Territories.
This device is to be used only for mobile and fixed applications. The antenna(s)
used for this transmitter must be installed to provide a separation distance of
at least 20cm from all persons and must not be co-located or operating in
conjunction with any other antenna or transmitter.
Users and installers must be provided with antenna installation instructions
and transmitter operating conditions for satisfying RF exposure compliance.
Antennas used for this OEM module must not exceed 3.0dBi gain for PCS
1900 MHz and 7.4dBi GSM 850 MHz for mobile and fixed operating
configurations. This device is approved as a module to be installed in other
devices.
Installed in other portable devices, the exposure conditions require a separate
equipment authorization.
The license module had a FCC ID label on the module itself. The FCC ID label
must be visible through a window or it must be visible when an access panel,
door or cover is easily removed.
If not, a second label must be placed on the outside of the device that contains
the following text:
Contains FCC ID: O9E-Q2686
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) this device may not cause harmful interference,
(2) this device must accept any interference received, including
interference that may cause undesired operation.
IMPORTANT: Manufacturers of mobile or fixed devices incorporating Q2686
Wireless CPU® are advised to
• clarify any regulatory questions,
• have their completed product tested,
• have product approved for FCC compliance, and
• include instructions according to above mentioned RF exposure
statements in end product user manual.
Please note that changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
© Confidential
Page: 94 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
7.2 Safety Recommendations (for information only)
IMPORTANT
FOR THE EFFICIENT AND SAFE OPERATION OF YOUR GSM APPLICATION
BASED ON Q2686 Wireless CPU®
PLEASE READ THIS INFORMATION CAREFULLY
7.2.1 RF Safety
7.2.1.1
General
Your GSM terminal is based on the GSM standard for cellular technology. The
GSM standard is spread all over the world. It covers Europe, Asia and some
parts of America and Africa. This is the most used telecommunication
standard.
Your GSM terminal is actually a low power radio transmitter and receiver. It
sends out as well as receives radio frequency energy. When you use your GSM
application, the cellular system which handles your calls controls both the
radio frequency and the power level of your cellular modem.
7.2.1.2
Exposure to RF Energy
There has been some public concern on possible health effects of using GSM
terminals. Although research on health effects from RF energy has focused on
the current RF technology for many years, scientists have begun research
regarding newer radio technologies, such as GSM. After existing research had
been reviewed, and after compliance to all applicable safety standards had
been tested, it has been concluded that the product was fitted for use.
If you are concerned about exposure to RF energy there are things you can do
to minimize exposure. Obviously, limiting the duration of your calls will reduce
your exposure to RF energy. In addition, you can reduce RF exposure by
operating your cellular terminal efficiently by following the guidelines below.
7.2.1.3
Efficient Terminal Operation
For your GSM terminal to operate at the lowest power level, consistent with
satisfactory call quality:
If your terminal has an extendable antenna, extend it fully. Some models allow
you to place a call with the antenna retracted. However your GSM terminal
operates more efficiently with the antenna when it is fully extended.
Do not hold the antenna when the terminal is "IN USE". Holding the antenna
affects call quality and may cause the modem to operate at a higher power
level than needed.
© Confidential
Page: 95 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
7.2.1.4
Antenna Care and Replacement
Do not use the GSM terminal with a damaged antenna. If a damaged antenna
comes into contact with the skin, a minor burn may result. Replace a damaged
antenna immediately. You may repair antenna to yourself by following the
instructions provided to you. If so, use only a manufacturer-approved antenna.
Otherwise, have your antenna repaired by a qualified technician.
Buy or replace the antenna only from the approved suppliers list. Using of
unauthorized antennas, modifications or attachments could damage the
terminal and may violate local RF emission regulations or invalidate type
approval.
7.2.2 General Safety
7.2.2.1
Driving
Check the laws and the regulations regarding the use of cellular devices in the
area where you have to drive as you always have to comply with them. When
using your GSM terminal while driving, please:
•
give full attention to driving,
•
pull-off from the road and park before making or answering a call if
driving conditions so require.
7.2.2.2
Electronic Devices
Most electronic equipment, for example in hospitals and motor vehicles is
shielded from RF energy. However, RF energy may affect some improperly
shielded electronic equipment.
7.2.2.3
Vehicle Electronic Equipment
Check your vehicle manufacturer representative to determine if any on-board
electronic equipment is adequately shielded from RF energy.
7.2.2.4
Medical Electronic Equipment
Consult the manufacturer of any personal medical devices (such as
pacemakers, hearing aids, etc) to determine if they are adequately shielded
from external RF energy.
Turn your terminal OFF in health care facilities when any regulations posted in
the area instruct you to do so. Hospitals or health care facilities may be using
RF monitoring equipment.
© Confidential
Page: 96 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
Q2686 Wireless CPU®
7.2.2.5
Aircraft
Turn your terminal OFF before boarding any aircraft.
•
Use it on the ground only with crew permission.
•
Do not use it in the air.
To prevent possible interference with aircraft systems, Federal Aviation
Administration (FAA) regulations require you should have prior permission
from a crew member to use your terminal while the aircraft is on the ground. In
order to prevent interference with cellular systems, local RF regulations prohibit
using your modem while airborne.
7.2.2.6
Children
Do not allow children to play with your GSM terminal. It is not a toy. Children
could hurt themselves or others (by poking themselves or others in the eye
with the antenna, for example). Children could damage the modem, or make
calls that increase your modem bills.
7.2.2.7
Blasting Areas
To avoid interfering with blasting operations, turn your unit OFF when you are
in a "blasting area" or in areas posted: "turn off two-way radio". Construction
crew often uses remote control RF devices to set off explosives.
7.2.2.8
Potentially Explosive Atmospheres
Turn your terminal OFF when in any area with a potentially explosive
atmosphere. Though it is rare, but your modem or its accessories could
generate sparks. Sparks in such areas could cause an explosion or fire resulting
in bodily injuries or even death.
Areas with a potentially explosive atmosphere are often, but not always, clearly
marked. They include fuelling areas such as petrol stations; below decks on
boats; fuel or chemical transfer or storage facilities; and areas where the air
contains chemicals or particles, such as grain, dust, or metal powders.
Do not transport or store flammable gas, liquid, or explosives, in the
compartment of your vehicle which contains your terminal or accessories.
Before using your terminal in a vehicle powered by liquefied petroleum gas
(such as propane or butane) ensure that the vehicle complies with the relevant
fire and safety regulations of the country in which the vehicle is used.
© Confidential
Page: 97 / 97
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior
written agreement.
WM_PRJ_Q2686_PTS_001-010
June 30, 2009
WAVECOM S.A. : 3 esplanade du Foncet - 92442 Issy-les-Moulineaux - France - Tel: +33 1 46 29 08 00 - Fax: +33 1 46 29 08 08
Wavecom, Inc: 430 Davis Drive, Suite 300 Research Triangle Park, North Carolina, USA - Tel: +1 919 237 4000 - Fax: +1 919 237 4140
WAVECOM Asia-Pacific: Unit 201-207, 2nd Floor, Bio-Informatics Centre No. 2 Science Park West Avenue, Hong Kong Science Park,
Shatin, New Territories, Hong Kong (PRC) - Tel: +852-2824 0254 - Fax: +852-2824 0255
[Online contact details, GPS and maps]

---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.6
Linearized                      : No
Encryption                      : Standard V2.3 (128-bit)
User Access                     : Print, Copy, Extract, Print high-res
XMP Toolkit                     : 3.1-702
Producer                        : Acrobat Distiller 7.0.5 (Windows)
Date 0020du 0020modele          : D:20011014
Company                         : WAVECOM SA
Creator Tool                    : Acrobat PDFMaker 7.0.7 for Word
Modify Date                     : 2009:06:30 10:32:48-04:00
Create Date                     : 2009:06:30 10:28:41-04:00
Metadata Date                   : 2009:06:30 10:32:48-04:00
Document ID                     : uuid:7f134bb0-ec8d-482f-87ff-9d0312c681d8
Instance ID                     : uuid:0f647f84-6725-483c-8188-b3758a0e0248
Marked                          : True
Format                          : application/pdf
Title                           : Q2686 Wireless CPU Product Technical Specification
Description                     : Q2686 Wireless CPU Product Technical Specification
Creator                         : Wavecom
Subject                         : WM_PRJ_Q2686_PTS_001, Wireless CPU, wireless module, wireless modules, wireless modem, wireless modems, modem wireless, GSM module, GSM modules, GPRS module, GSM modem, GSM modems, GSM GPRS modem, CDMA modem, modem CDMA, CDMA wireless modem, EDGE modem, cellular modem, wireless modem, modem GSM, wireless GPS module, HSxPA modem, HSDPA modem, HSUPA modem, WISMO, cellular software, software cellular, wireless software, GSM software, Lua, GSM GPS, GPS GSM, CDMA GSM, EDGE, HSDPA, HSUPA, HSxPA, GSM satellite, satellite GPS, cellular satellite, GPS satellite, M2M, machine-to-machine, embedded wireless, gsm tracking, fleet management, GSM POS, GSM automotive, telematics, GPS wireless, satellite location, tracking system, satellite tracking, wireless alarm system, smart metering, wireless automotive, tracking systems, eCall
Page Count                      : 99
Page Layout                     : OneColumn
Date Du Modele                  : D:20011014
Author                          : Wavecom
Keywords                        : WM_PRJ_Q2686_PTS_001;, Wireless, CPU;, wireless, module;, wireless, modules;, wireless, modem;, wireless, modems;, modem, wireless;, GSM, module;, GSM, modules;, GPRS, module;, GSM, modem;, GSM, modems;, GSM, GPRS, modem;, CDMA, modem;, modem, CDMA;, CDMA, wireless, modem;, EDGE, modem;, cellular, modem;, wireless, modem;, modem, GSM;, wireless, GPS, module;, HSxPA, modem;, HSDPA, modem;, HSUPA, modem;, WISMO;, cellular, software;, software, cellular;, wireless, software;, GSM, software;, Lua;, GSM, GPS;, GPS, GSM;, CDMA, GSM;, EDGE;, HSDPA;, HSUPA;, HSxPA;, GSM, satellite;, satellite, GPS;, cellular, satellite;, GPS, satellite;, M2M;, machine-to-machine;, embedded, wireless;, gsm, tracking;, fleet, management;, GSM, POS;, GSM, automotive;, telematics;, GPS, wireless;, satellite, location;, tracking, system;, satellite, tracking;, wireless, alarm, system;, smart, metering;, wireless, automotive;, tracking, systems;, eCall

EXIF Metadata provided by EXIF.tools