Sierra Wireless HL8529 Embedded module User Manual

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Product Technical Specification
AirPrime HL8518, HL8528 and HL8529
4117047
2.2
December 18, 2015
Product Technical Specification
Important Notice
Due to the nature of wireless communications, transmission and reception of data can never be
guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant
delays or losses of data are rare when wireless devices such as the Sierra Wireless modem are used
in a normal manner with a well-constructed network, the Sierra Wireless modem should not be used
in situations where failure to transmit or receive data could result in damage of any kind to the user or
any other party, including but not limited to personal injury, death, or loss of property. Sierra Wireless
accepts no responsibility for damages of any kind resulting from delays or errors in data transmitted or
received using the Sierra Wireless modem, or for failure of the Sierra Wireless modem to transmit or
receive such data.
Safety and Hazards
Do not operate the Sierra Wireless modem in areas where cellular modems are not advised without
proper device certifications. These areas include environments where cellular radio can interfere such
as explosive atmospheres, medical equipment, or any other equipment which may be susceptible to
any form of radio interference. The Sierra Wireless modem can transmit signals that could interfere
with this equipment. Do not operate the Sierra Wireless modem in any aircraft, whether the aircraft is
on the ground or in flight. In aircraft, the Sierra Wireless modem MUST BE POWERED OFF. When
operating, the Sierra Wireless modem can transmit signals that could interfere with various onboard
systems.
Note:
Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door
is open. Sierra Wireless modems may be used at this time.
The driver or operator of any vehicle should not operate the Sierra Wireless modem while in control of
a vehicle. Doing so will detract from the driver or operator’s control and operation of that vehicle. In
some states and provinces, operating such communications devices while in control of a vehicle is an
offence.
Limitations of Liability
This manual is provided “as is”. Sierra Wireless 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 manual shall endorse all risks arising from its use.
The information in this manual is subject to change without notice and does not represent a
commitment on the part of Sierra Wireless. SIERRA WIRELESS AND ITS AFFILIATES
SPECIFICALLY DISCLAIM LIABILITY FOR ANY AND ALL DIRECT, INDIRECT, SPECIAL,
GENERAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES INCLUDING,
BUT NOT LIMITED TO, LOSS OF PROFITS OR REVENUE OR ANTICIPATED PROFITS OR
REVENUE ARISING OUT OF THE USE OR INABILITY TO USE ANY SIERRA WIRELESS
PRODUCT, EVEN IF SIERRA WIRELESS AND/OR ITS AFFILIATES HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES OR THEY ARE FORESEEABLE OR FOR CLAIMS BY ANY
THIRD PARTY.
Notwithstanding the foregoing, in no event shall Sierra Wireless and/or its affiliates aggregate liability
arising under or in connection with the Sierra Wireless product, regardless of the number of events,
occurrences, or claims giving rise to liability, be in excess of the price paid by the purchaser for the
Sierra Wireless product.
Customer understands that Sierra Wireless is not providing cellular or GPS (including A-GPS)
services. These services are provided by a third party and should be purchased directly by the
Customer.
4117047
Rev 2.2
December 18, 2015
Product Technical Specification
SPECIFIC DISCLAIMERS OF LIABILITY: CUSTOMER RECOGNIZES AND ACKNOWLEDGES
SIERRA WIRELESS IS NOT RESPONSIBLE FOR AND SHALL NOT BE HELD LIABLE FOR ANY
DEFECT OR DEFICIENCY OF ANY KIND OF CELLULAR OR GPS (INCLUDING A-GPS)
SERVICES.
Patents
This product may contain technology developed by or for Sierra Wireless Inc.
This product includes technology licensed from QUALCOMM®.
This product is manufactured or sold by Sierra Wireless Inc. or its affiliates under one or more patents
licensed from InterDigital Group and MMP Portfolio Licensing.
Copyright
© 2015 Sierra Wireless. All rights reserved.
Trademarks
Sierra Wireless®, AirPrime®, AirLink®, AirVantage®, WISMO®, ALEOS® and the Sierra Wireless and
Open AT logos are registered trademarks of Sierra Wireless, Inc. or one of its subsidiaries.
Watcher® is a registered trademark of NETGEAR, Inc., used under license.
Windows® and Windows Vista® are registered trademarks of Microsoft Corporation.
Macintosh® and Mac OS X® are registered trademarks of Apple Inc., registered in the U.S. and other
countries.
QUALCOMM® is a registered trademark of QUALCOMM Incorporated. Used under license.
Other trademarks are the property of their respective owners.
Contact Information
Sales Desk:
Post:
Technical Support:
RMA Support:
Fax:
Web:
Phone:
1-604-232-1488
Hours:
8:00 AM to 5:00 PM Pacific Time
Contact:
http://www.sierrawireless.com/sales
Sierra Wireless
13811 Wireless Way
Richmond, BC
Canada
V6V 3A4
support@sierrawireless.com
repairs@sierrawireless.com
1-604-231-1109
http://www.sierrawireless.com/
Consult our website for up-to-date product descriptions, documentation, application notes, firmware
upgrades, troubleshooting tips, and press releases: www.sierrawireless.com
4117047
Rev 2.2
December 18, 2015
Product Technical Specification
Document History
Version
Date
Updates
1.0
May 20, 2015
Creation
1.1
May 29, 2015
Updated:

1 Introduction

Error! Reference source not found. Error! Reference source
not found.

Error! Reference source not found. Error! Reference source
not found.

Error! Reference source not found. Error! Reference source
not found.
Deleted 4.1 Model Views
Added Error! Reference source not found. Error! Reference source
not found.
2.0
December 02, 2015
Updated:

Table 1 Supported Bands/Connectivity

1.2 Physical Dimensions

Table 2 General Features

Table 3 ESD Specifications

1.9 Environmental and Certifications

Error! Reference source not found. Error! Reference source
not found.

Table 5 Power Supply

2.4 Current DC Power Consumption

Error! Reference source not found. Error! Reference source
not found.

Error! Reference source not found. Error! Reference source
not found.

Error! Reference source not found. Error! Reference source
not found.

Error! Reference source not found. Error! Reference source
not found.
Deleted HSIC
2.1
December 10, 2015
Updated Table 8 Current Consumption (at nominal voltage, 3.7V)
2.2
December 18, 2015
Updated Chapter 7 Regulatory Legal Information
4117047
Rev 2.2
December 18, 2015
Contents
1. INTRODUCTION .................................................................................................... 9
1.1.
Common Flexible Form Factor (CF3)............................................................................... 9
1.2.
Physical Dimensions ..................................................................................................... 10
1.3.
General Features .......................................................................................................... 10
1.4.
Encryption Support ........................................................................................................ 13
1.5.
Architecture ................................................................................................................... 13
1.6.
Interfaces ...................................................................................................................... 14
1.7.
Connection Interface ..................................................................................................... 14
1.8.
ESD .............................................................................................................................. 15
1.9.
Environmental and Certifications ................................................................................... 15
1.9.1.
Environmental Specifications ................................................................................. 15
1.9.2.
Regulatory ............................................................................................................. 16
1.9.3.
RoHS Directive Compliant ..................................................................................... 16
1.9.4.
Disposing of the Product ........................................................................................ 16
1.10.
References .................................................................................................................... 16
2. DETAILED INTERFACE SPECIFICATIONS ....................................................... 17
2.1.
Power Supply ................................................................................................................ 17
2.1.1.
Electrical Characteristics ........................................................................................ 17
2.1.2.
Pin Description ....................................................................................................... 17
2.1.3.
Burst Transmission Current Requirements ............................................................ 18
2.1.4.
Power Input (VBATT) ............................................................................................. 19
2.2.
Ground Connection ....................................................................................................... 19
2.3.
Decoupling of Power Supply Signals ............................................................................. 19
2.4.
Current DC Power Consumption ................................................................................... 20
2.5.
VGPIO........................................................................................................................... 22
2.5.1.
Electrical Characteristics ........................................................................................ 22
2.5.2.
Pin Description ....................................................................................................... 22
2.6.
BAT_RTC ...................................................................................................................... 22
2.6.1.
Electrical Characteristics ........................................................................................ 23
2.6.2.
Pin Description ....................................................................................................... 23
2.7.
SIM Interface ................................................................................................................. 23
2.7.1.
Electrical Characteristics ........................................................................................ 24
2.7.2.
Pin Description ....................................................................................................... 24
2.7.3.
UIM1_DET ............................................................................................................. 25
2.7.4.
Application ............................................................................................................. 25
2.8.
USB .............................................................................................................................. 26
2.8.1.
Electrical Characteristics ........................................................................................ 26
2.8.2.
Pin Description ....................................................................................................... 26
2.9.
Electrical Information I/O ............................................................................................... 26
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Product Technical Specification
2.10.
General Purpose Input/Output (GPIO) .......................................................................... 27
2.11.
Main Serial Link (UART1).............................................................................................. 28
2.11.1. Pin Description ....................................................................................................... 28
2.11.2. 8-wire Application ................................................................................................... 29
2.11.3. 4-wire Application ................................................................................................... 29
2.11.4. 2-wire Application ................................................................................................... 29
2.12.
POWER ON Signal (PWR_ON_N) ................................................................................ 30
2.13.
Reset Signal (RESET_IN_N) ........................................................................................ 30
3. DESIGN GUIDELINES ......................................................................................... 32
3.1.
Power-Up Sequence ..................................................................................................... 32
3.2.
Module Switch-Off ......................................................................................................... 32
3.3.
Emergency Power OFF ................................................................................................. 33
3.4.
Sleep Mode Management ............................................................................................. 33
3.4.1.
Using UART ........................................................................................................... 33
3.4.2.
Using USB ............................................................................................................. 33
3.5.
Power Supply Design .................................................................................................... 34
3.6.
ESD Guidelines for SIM Card ........................................................................................ 34
3.7.
ESD Guidelines for USB ............................................................................................... 35
3.8.
Dual SIM Application ..................................................................................................... 35
3.9.
Radio Frequency Integration ......................................................................................... 36
4. REGULATORY LEGAL INFORMATION ............................................................. 37
4.1.
Label ............................................................................................................................. 37
4.2.
FCC Regulations ........................................................................................................... 37
4.3.
RF Exposure Information .............................................................................................. 38
4.4.
IC Regulations............................................................................................................... 38
4.5.
CE Warning ................................................................................................................... 39
5. TERMS AND ABBREVIATIONS.......................................................................... 40
4117047
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List of Figures
Figure 1.
Architecture Overview ................................................................................................... 13
Figure 2.
Mechanical Overview .................................................................................................... 14
Figure 3.
Power Supply During Burst Transmission ..................................................................... 18
Figure 4.
Power Supply Requirements ......................................................................................... 19
Figure 5.
Power Supply Voltage Drops Shapes During Burst Transmission................................. 20
Figure 6.
UIM1 Application Reference Schematic ........................................................................ 25
Figure 7.
8-wire UART Application Example ................................................................................ 29
Figure 8.
4-wire UART Application Example ................................................................................ 29
Figure 9.
2-wire UART Application Example ................................................................................ 29
Figure 10.
PWR_ON_N Assertion Time ......................................................................................... 30
Figure 11.
PWR_ON_N Sequence with VGPIO Information .......................................................... 32
Figure 12.
PWR_ON_N Sequence with Trampup .............................................................................. 32
Figure 13.
Power OFF Sequence for PWR_ON_N, VGPIO ........................................................... 33
Figure 14.
Voltage Limiter Example ............................................................................................... 34
Figure 15.
EMC and ESD Components Close to the SIM .............................................................. 34
Figure 16.
ESD Protection for USB ................................................................................................ 35
Figure 17.
Reference Design for Dual SIM Application .................................................................. 35
Figure 18.
GSM Antenna Connection with Antenna Detection ....................................................... 36
4117047
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List of Tables
Table 1.
Supported Bands/Connectivity ........................................................................................ 9
Table 2.
General Features .......................................................................................................... 10
Table 3.
ESD Specifications........................................................................................................ 15
Table 4.
Environmental Specifications ........................................................................................ 15
Table 5.
Power Supply ................................................................................................................ 17
Table 6.
Power Supply Pin Description ....................................................................................... 17
Table 7.
Radio Burst Rates – Connected Mode .......................................................................... 18
Table 8.
Current Consumption (at nominal voltage, 3.7V)........................................................... 20
Table 9.
Current Consumption per Power Supply (VBATT_PA and VBATT) .............................. 21
Table 10.
VGPIO Electrical Characteristics ................................................................................... 22
Table 11.
VGPIO Pin Description .................................................................................................. 22
Table 12.
BAT_RTC Electrical Characteristics .............................................................................. 23
Table 13.
BAT_RTC Pin Description ............................................................................................. 23
Table 14.
Electrical Characteristics of UIM1.................................................................................. 24
Table 15.
UIM1 Pin Description .................................................................................................... 24
Table 16.
USIM Socket Pin Description ........................................................................................ 25
Table 17.
Electrical Characteristics of USB ................................................................................... 26
Table 18.
USB Pin Description...................................................................................................... 26
Table 19.
Digital I/O Electrical Characteristics .............................................................................. 26
Table 20.
GPIO Pin Description .................................................................................................... 27
Table 21.
UART1 Pin Description ................................................................................................. 28
Table 22.
PWR_ON_N Electrical Characteristics .......................................................................... 30
Table 23.
RESET_IN_N Electrical Characteristics ........................................................................ 31
Table 24.
AirPrime HL852x FCC IDs ............................................................................................ 37
Table 25.
AirPrime HL852x IC ...................................................................................................... 39
4117047
Rev 2.2
December 18, 2015
1. Introduction
This document is the Product Technical Specification for the AirPrime HL8518, HL8528 and HL8529
Embedded Modules. It defines high level features and illustrates the interfaces for these features. This
document is intended to cover hardware aspects, including electrical and mechanical, of the AirPrime
HL8518, HL8528 and HL8529.
The AirPrime HL8518, HL8528 and HL8529 modules belong to the AirPrime HL Series from the
Essential Connectivity Module family. These are industrial grade Embedded Wireless Modules that
provide voice and data connectivity on GPRS, EDGE RX, WCDMA, HSDPA and HSUPA networks
(as listed in Table 1 Supported Bands/Connectivity).
The HL8518, HL8528 and HL8529 modules support a large variety of interfaces such as Digital Audio,
GPIOs and UART to provide customers with the highest level of flexibility in implementing high-end
solutions.
Receive band
(Rx)
UMTS B1
1922 to1978 MHz
2112 to 2168 MHz
UMTS B2
1852 to 1908 MHz
1932 to 1988 MHz
UMTS B5
826 to 847 MHz
871 to 892 MHz
UMTS B8
882 to 913 MHz
927 to 958 MHz
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
1.1.
HL8529
Transmit band
(Tx)
RF Band
HL8528
Supported Bands/Connectivity
HL8518
Table 1.








Common Flexible Form Factor (CF3)
The AirPrime HL8518, HL8528 and HL8529 belong to the Common Flexible Form Factor (CF3)
family of modules. This family consists of a series of WWAN modules that share the same mechanical
dimensions (same width and length with varying thicknesses) and footprint. The CF3 form factor
provides a unique solution to a series of problems faced commonly in the WWAN module space as it:

Accommodates multiple radio technologies (from 2G to LTE advanced) and band groupings

Supports bit-pipe (Essential Module Series) and value add (Smart Module Series) solutions

Offers electrical and functional compatibility

Provides Direct Mount as well Socketability depending on customer needs
4117047
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Product Technical Specification
1.2.
Introduction
Physical Dimensions
The AirPrime HL8518, HL8528 and HL8529 modules are compact, robust, fully shielded modules with
the following dimensions:

Length: 23 mm

Width: 22 mm

Thickness: 2.5 mm

Weight: 2.65 g
Note:
Dimensions specified above are typical values.
1.3.
General Features
The table below summarizes the AirPrime HL8518, HL8528 and HL8529 features.
Table 2.
General Features
Feature
Physical
Electrical
Description

Small form factor (146-pin solderable LGA pad) – 23mm x 22mm x 2.5mm
(nominal)

Metal shield can

RF connection pad

Baseband signals connection
Single or double supply voltage (VBATT and VBATT_PA) – 3.2V – 4.5V
HL8518 (dual-band UMTS and dual-band GSM):

UMTS B1

UMTS B8

E-GSM 900

DCS 1800
HL8528 (dual-band UMTS and dual-band GSM):
RF

UMTS B2

UMTS B5

GSM 850

PCS 1900
HL8529 (dual-band UMTS):
Audio interface
4117047

UMTS B2

UMTS B5

Digital interface (ONLY)

Supports Enhanced Full Rate (EFR), Full Rate (FR), Half Rate (HR), and
both Narrow-Band and Wide-band Adaptive Multirate (AMR-NB and AMRWB) vocoders

MO and MT calling

Echo cancellation and noise reduction

Emergency calls (112, 110, 911, etc.)

Incoming call notification

DTMF generation
Rev 2.2
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10
Product Technical Specification
Feature
SIM interface
Application interface
Introduction
Description

Dual SIM Single Standby (DSSS) with fast network switching capability

1.8V/3V support

SIM extraction / hot plug detection

SIM/USIM support

Conforms with ETSI UICC Specifications.

Supports SIM application tool kit with proactive SIM commands

NDIS NIC interface support (Windows XP, Windows 7, Windows 8, Windows
CE, Linux)

Multiple non-multiplexed USB channel support

Dial-up networking

USB selective suspend to maximize power savings

CMUX multiplexing over UART

AT command interface – 3GPP 27.007 standard, plus proprietary extended
AT commands
Dual-mode UMTS (WCDMA) / HSDPA / HSUPA / EDGE RX / GPRS / GSM
operation

GSM/GPRS/EDGE RX
 GPRS Class 12
 EDGE RX
 CSD (Circuit-switched data bearers)
 Release 4 GERAN Feature Package 1
 SAIC / DARP Phase 1
 Latency Reduction
 Repeated FACCH and Repeated SACCH
 GPRS ROHC
 Enhanced Operator Name String (EONS)
 Enhanced Network Selection (ENS)

WCDMA
 3GPP WCDMA FDD Multimode Type II UE Protocol Stack
 Configurable for data classes up to 384 kBit/s
 Inter-RAT Handover and Cell Reselection
 Supports two types of Compressed Mode
 Network Assisted Cell Change from UTRAN to GERAN and GERAN to
UTRAN
 CSD (Circuit-switched data bearers) over WCDMA (transparent/non
transparent up to 64 kBit/s; Support for Video Telephony)

HSDPA (High Speed Downlink Packet Access)
 Compliant with 3GPP Release 5
 HSDPA Category 8 data rate – 7.2 Mbps (peak rate)
 IPv6 support

HSUPA (High Speed Uplink Packet Access)
 Compliant with 3GPP Release 6
 HSUPA Category 6 data rate - 5.76 Mbps (peak rate)
 Robust Header Compression (RoHC)
Protocol Stack
 Fractional DPCH
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Product Technical Specification
Feature
Description

HSPA+ (Evolved High Speed Packet Access)
 Compliant with 3GPP Release 7
 Higher-Order Modulation (HOM)
 MAC-ehs support
 Continuous Packet Connectivity (CPC)
 Enhanced F-DPCH
 Enhanced Cell FACH
 Circuit Switched Voice over HSPA

SMS MO and MT

CS and PS support

SMS saving to SIM card or ME storage
Protocol Stack
SMS
Supplementary
Services
Connectivity
Introduction

SMS reading from SIM card or ME storage

SMS sorting

SMS concatenation

SMS Status Report

SMS replacement support

SMS storing rules (support of AT+CNMI, AT+CNMA)

Call Barring

Call Forwarding

Call Hold

Caller ID

Call Waiting

Multi-party service

USSD

Automatic answer

Multiple (up to 20) cellular packet data profiles

Sleep mode for minimum idle power draw

Automatic GPRS attach at power-up

GPRS detach

Mobile-originated PDP context activation / deactivation

Support QoS profile

Release 97 – Precedence Class, Reliability Class, Delay Class, Peak
Throughput, Mean Throughput

Release 99 QoS negotiation – Background, Interactive, and Streaming

Static and Dynamic IP address. The network may assign a fixed IP address
or dynamically assign one using DHCP (Dynamic Host Configuration
Protocol).

Supports PAP and CHAP authentication protocols

PDP context type (IPv4, IPv6, IPv4v6). IP Packet Data Protocol context

RFC1144 TCP/IP header compression

Interaction with existing GSM services (MO/MT SMS voice calls) while:

GPRS is attached, or

In a GPRS data session (class B GPRS suspend / resume procedures)
Operating temperature ranges (industrial grade):
Environmental
4117047


Class A: -30°C to +70°C
Class B: -40°C to +85°C
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Product Technical Specification
Introduction
Feature
Description
RTC
Real Time Clock (RTC) with calendar and alarm
Temperature Sensor
1.4.

Temperature monitoring

Alarms
Encryption Support
The AirPrime HL8518, HL8528 and HL8529 supports the following encryption algorithms:

Ciphering algorithms A51, A52 and A53

GEA1/GEA2 and GEA3 algorithm for GPRS encryption

Cyclic Redundancy Check (CRC) with programmable polynomial

UMTS confidentiality algorithm f8 for message ciphering (Kasumi based UEA1)

UMTS integrity algorithm f9 for message authentication (Kasumi based UIA1 and SNOW 3G
based UIA2)
1.5.
Architecture
The figure below presents an overview of the AirPrime HL8518, HL8528 and HL8529 modules
internal architecture and external interfaces.
AirPrime HL8518, HL8528 and HL8529
26MHz
RX_DCS
Transceiver
SAW
Filters
RX_DCS
TX_2G
3G
PA
RX_2G
RX_3G
B1/B8GSM900
VBATT
GND
VGPIO
BAT_RTC
GPIO x 12
ADC x2
UART1 (8pins)
Debug (2pins)
JTAG
26M_CLKOUT
32K_CLKOUT
SIM1
RESET_IN_N
TP1
PWR_ON_N
PWM x 2
2G_TX_ON
USB
TX_3G
Baseband
MCU
DSP
PMU
RF
2G PA
Antenna
Switch
Isoplexer
RF
RF
Or
B2-PCS/B5GSM850
Or
B2/B5
RF
Analog Baseband
Peripherals
PCM
Memory
(Flash + RAM)
Figure 1.
4117047
32.768KHz
Architecture Overview
Rev 2.2
December 18, 2015
13
Product Technical Specification
1.6.
Introduction
Interfaces
The AirPrime HL8518, HL8528 and HL8529 modules provide the following interfaces and peripheral
connectivity:

1x – 8-pin UART

1x – Active Low RESET

1x – USB 2.0

1x – Backup Battery Interface

2x – System Clock Out

1x – Active Low POWER ON

1x – 1.8V/3V SIM

1x – Digital Audio

2x – ADC

1x – JTAG Interface

1x – Debug Interface

2x – PWM

12x – GPIOs

1x – 2G TX Burst Indicator

1x – GSM Antenna
1.7.
Connection Interface
The AirPrime HL8518, HL8528 and HL8529 modules are an LGA form factor device. All electrical and
mechanical connections are made through the 146 Land Grid Array (LGA) pads on the bottom side of
the PCB.
Figure 2.
Mechanical Overview
The 146 pads have the following distribution:

66 inner signal pads, 1x0.5mm, pitch 0.8mm

1 reference test point (Ground), 1.0mm diameter

7 test point (JTAG), 0.8mm diameter, 1.20mm pitch

64 inner ground pads, 1.0x1.0mm, pitch 1.825mm/1.475mm

4 inner corner ground pads, 1x1mm

4 outer corner ground pads, 1x0.9mm
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Product Technical Specification
1.8.
Introduction
ESD
Refer to the following table for ESD Specifications.
Note:
Information specified in the following table is preliminary and subject to change.
Table 3.
ESD Specifications
Category
Connection
Operational
RF ports
Specification
IEC-61000-4-2 — Level (Electrostatic Discharge Immunity Test)
Unless otherwise specified:
Non-operational
Host connector
interface
SIM connector
Signals
Other host signals
1.9.

JESD22-A114 +/- 1kV Human Body Model

JESD22-A115 +/- 200V Machine Model

JESD22-C101C +/- 250V Charged Device Model
ESD protection is highly recommended at the point where the
USIM contacts are exposed, and for any other signals that would
be subjected to ESD by the user.
Environmental and Certifications
1.9.1.
Environmental Specifications
The environmental specification for both operating and storage conditions are defined in the table
below.
Table 4.
Environmental Specifications
Conditions
Range
Operating Class A
-30°C to +70°C
Operating Class B
-40°C to +85°C
Storage
-40°C to +85°C
Note:
The upper limit of Class A is subject to module PCB temperature. A progressive 3G output power
reduction feature is implemented for when PCB temperatures are above +80°C. This leads to a
calibrated 3G TX power output up to +80°C for the PCB temperature and automatic decrease at
higher temperatures. Therefore, depending on module activity and customer design, the upper limit
of Class A could be lower than 70°C.
Class A is defined as the operating temperature ranges that the device:

Shall exhibit normal function during and after environmental exposure.

Shall meet the minimum requirements of 3GPP or appropriate wireless standards.
Class B is defined as the operating temperature ranges that the device:

Shall remain fully functional during and after environmental exposure

Shall exhibit the ability to establish a voice, SMS or DATA call (emergency call) at all times
even when one or more environmental constraint exceeds the specified tolerance.

Unless otherwise stated, full performance should return to normal after the excessive
constraint(s) have been removed.
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1.9.2.
Introduction
Regulatory
The AirPrime HL8518, HL8528 and HL8529 modules are compliant with the following regulations:

R&TTE directive 1999/5/EC

FCC

IC
These compliances will be reflected on the AirPrime HL8518, HL8528 and HL8529 modules labels
when applicable.
1.9.3.
RoHS Directive Compliant
The AirPrime HL8518, HL8528 and HL8529 modules are compliant with RoHS Directive 2011/65/EU
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) or polybrominated
diphenyl ethers (PBDE)”.
1.9.4.
Disposing of the Product
This electronic product is subject to the EU Directive 2012/19/EU for Waste Electrical
and Electronic Equipment (WEEE). As such, this product must not be disposed of at a
municipal waste collection point. Please refer to local regulations for directions on how
to dispose of this product in an environmental friendly manner.
1.10. References
[1]
AirPrime HL Series Customer Process Guidelines
Reference Number: 4114330
[2]
AirPrime HL6 and HL8 Series AT Commands Interface Guide
Reference Number: 4114680
[3]
AirPrime HL Series Dual SIM Single Standby Application Note
Reference Number: 2174034
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2. Detailed Interface Specifications
Note:
If not specified, all electrical values are given for VBATT=3.7V and an operating temperature of
25°C.
For standard applications, VBATT and VBATT_PA must be tied externally to the same power
supply. For some specific applications, AirPrime HL8518, HL8528 and HL8529 modules support
separate VBATT and VBATT_PA connection if requirements below are fulfilled.
2.1.
Power Supply
The AirPrime HL8518, HL8528 and HL8529 modules are supplied through the VBATT signal.
2.1.1.
Electrical Characteristics
The following table describes the electrical characteristics of the Power Supply interface.
Table 5.
Power Supply
Supply
Minimum
Typical
Maximum
VBATT voltage (V)
3.21
3.7
4.5
VBATT_PA voltage (V) Full Specification
3.21
3.7
4.5
VBATT_PA voltage (V) Extended Range
2.82
3.7
4.5
This value has to be guaranteed during the burst
No guarantee of 3GPP performances over extended range
Note:
Load capacitance for VBATT is around 30µF ± 20% embedded inside the module.
Load capacitance for VBATT_PA is around 20µF ± 20% embedded inside the module.
2.1.2.
Pin Description
The following table describes the pin description of the Power Supply interface.
Table 6.
Power Supply Pin Description
Pin Number
Signal Name
I/O
Description
63
VBATT
Power supply (base band)
61, 62
VBATT_PA
Power supply (radio frequency)
37, 39, 48, 67-70, 167-234
GND
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2.1.3.
Detailed Interface Specifications
Burst Transmission Current Requirements
The power supply must be able to deliver high current peaks in a short time due to the burst
transmission nature of GSM. For supply filtering recommendations, please refer to section 2.3
Decoupling of Power Supply Signals.
The following table describes radio burst rates in connected mode. For detailed power consumption
figures, refer to section 2.4 Current DC Power Consumption.
Table 7.
Radio Burst Rates – Connected Mode
GSM/GPRS
Multislot Class
Class 10
Class 12
RF Power
Amplifier Current
Slot Duration
Period
Rising Time
2.2A peak
577 μs
4.615 ms
10 μs
The corresponding radio burst rates in connected mode are as follows:

GSM/GPRS class 2 terminals emit 577 µs radio bursts every 4.615 ms

GPRS class 10 terminals emit 1154 µs radio bursts every 4.615 ms

GPRS class 12 terminals emit 2308 µs radio bursts every 4.615 ms
In connected mode, the RF Power Amplifier current (2.2A peak in GSM /GPRS mode) flows with a
ratio of:

1/8 of the time (around 577 µs every 4.615 ms for GSM /GPRS cl 2 – 2RX/1TX), and

4/8 of the time (around 2308 µs every 4.615 ms for GSM /GPRS cl 12 – 4RX/1TX) with the
rising time at around 10 µs.
Figure 3.
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Product Technical Specification
2.1.4.
Detailed Interface Specifications
Power Input (VBATT)
An external power supply uses the VBATT pins to:

Supply the AirPrime HL8518, HL8528 and HL8529 modules.

Directly supply the RF components.
 It is essential to keep the voltage ripple to a minimum at this connection to avoid any
phase error or spectrum modulation degradation.
 An inadequate power supply can significantly affect RF performance (TX power,
modulation spectrum, EMC performance, spurious emission, frequency error, etc.).

Provide reference voltage VGPIO (through internal regulators) for the baseband signals.
When the AirPrime HL8518, HL8528 and HL8529 modules are supplied with a battery, the total
impedance (battery + protections + PCB) should be such that the supply will be >= 3.2 V during GSM
burst mode operation drawing a maximum peak current of 2.2 A for 577 µs (one slot) or 1154 µs (two
slots) TX.
2.2.
Ground Connection
The AirPrime HL8518, HL8528 and HL8529 modules shielding case is the grounding. The ground
must be connected on the motherboard through a complete layer on the PCB.
The ground connection is made by soldering the LGA ground pins and rectangular ground pad to the
ground plane of the application board.
2.3.
Decoupling of Power Supply Signals
The ETSI standard defines specific requirements for phase error and spectrum modulation. Both are
mandatory and can be affected by the choice of power supply filtering. It is highly recommended to
provide multiple capacitor values to solve an eventual Amplitude and Phase Modulation issue.
AirPrime HL8518, HL8528 and HL8529 modules already here embedded decoupling capacitors on
the VBATT lines, but additional external decoupling may be required.

EMI/RFI issues – Add a capacitor (10pF~33pF) close to the VBATT pins.

TDMA noise (217 Hz) – Place a low ESR decoupling capacitors (at least 100 µF) as close to
the module as possible to reduce noise.
Figure 4.
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Power Supply Requirements
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Product Technical Specification
Detailed Interface Specifications
The figure below shows the power supply voltage drop shapes during GSM 2G transmission.
Figure 5.
2.4.
Power Supply Voltage Drops Shapes During Burst Transmission
Current DC Power Consumption
The following table lists the current consumption of the AirPrime HL8518, HL8528 and HL8529
modules at different conditions.
Note:
The following data is under the setup recommended in section 3.5 Power Supply Design.
The USB is disconnected for the lowest current consumption.
Typical values are measured at ambient temperature, and maximum values are measured over the
entire operating temperature range. (The measurements are done with a CMU200 and with a 50Ω
load.) For a description of input voltage requirements, see section 2.1 Power Supply.
Table 8.
Current Consumption (at nominal voltage, 3.7V)
Parameters
Typical
Off mode
50 µA
Sleep mode - GSM DRX2
(registered to the network)
Sleep mode - GSM DRX9
(registered to the network)
Sleep mode - WCDMA DRX6
(registered to the network)
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GSM900
1.5 mA
3.15 mA
DCS1800
1.5 mA
3.15 mA
GSM850
1.6 mA
3.4 mA
PCS1900
1.6 mA
3.4 mA
GSM900
1.15 mA
2.7 mA
DCS1800
1.0 mA
2.7 mA
GSM850
1.3 mA
2.9 mA
PCS1900
1.25 mA
2.95 mA
Band 1
1.75 mA
3.45 mA
Band 2
2 mA
3.75 mA
Band 5
2 mA
3.8 mA
Band 8
1.75 mA
3.5 mA
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Product Technical Specification
Detailed Interface Specifications
Parameters
Sleep mode - WCDMA DRX9
(registered to the network)
WCDMA in communication mode
(Voice Call)
WCDMA in communication mode
(HSDPA)
WCDMA in communication mode
(HSUPA)
GSM in communication mode
GPRS (2 TX,3 RX)
Peak current consumption
Table 9.
Typical
Maximum
Band 1
1.1 mA
2.7 mA
Band 2
1.3 mA
2.9 mA
Band 5
1.3 mA
3.2 mA
Band 8
1.1 mA
2.7 mA
Band 1
620 mA
735 mA
Band 2
620 mA
735 mA
Band 5
500 mA
650 mA
Band 8
500 mA
650 mA
Band 1
700 mA
880 mA
Band 2
680 mA
900 mA
Band 5
550 mA
760 mA
Band 8
580 mA
800 mA
Band 1
700 mA
880 mA
Band 2
665 mA
900 mA
Band 5
550 mA
760 mA
Band 8
580 mA
800 mA
GSM900 / GSM850 (PCL=5)
220 mA
250 mA
DCS / PCS (PCL=0)
165 mA
175 mA
GSM900 / GSM850 (PCL=5)
425 mA
460 mA
DCS / PCS (PCL=0)
300 mA
335 mA
GSM900 / GSM850
1.9 A
2.2A
DCS / PCS
1.8 A
2.0A
Typical
Maximum
Current Consumption per Power Supply (VBATT_PA and VBATT)
Parameters
VBATT_PA
Average current GSM in
communication mode
E-GSM 900 / GSM 850 (PCL=5)
185 mA
210 mA
DCS 1800/ PCS 1900 (PCL=0)
130 mA
135 mA
Average current
GPRS (2 TX,3 RX)
E-GSM 900 / GSM 850 (PCL=5)
370 mA
395 mA
Average current
WCDMA in
communication mode
(Voice Call)
VBATT
245 mA
270 mA
520 mA
615 mA
Band 2
520 mA
615 mA
Band 5
405 mA
530 mA
Band 8
405 mA
530 mA
Average current GSM in
communication mode
E-GSM 900 / GSM 850 (PCL=5)
35 mA
40 mA
DCS 1800/ PCS 1900 (PCL=0)
35 mA
40 mA
Average current
GPRS (2 TX,3 RX)
E-GSM 900 / GSM 850 (PCL=5)
55 mA
65 mA
Average current
WCDMA in
communication mode
(Voice Call)
4117047
DCS 1800/ PCS 1900 (PCL=0)
Band 1
DCS 1800/ PCS 1900 (PCL=0)
55 mA
65 mA
Band 1
100 mA
120 mA
Band 2
100 mA
120 mA
Band 5
95 mA
120 mA
Band 8
95 mA
120 mA
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Product Technical Specification
2.5.
Detailed Interface Specifications
VGPIO
The VGPIO output can be used to:

Pull-up signals such as I/Os

Supply the digital transistors driving LEDs

Act as a voltage reference for the ADC interfaces, ADC0 and ADC1
The VGPIO output is available when the AirPrime HL8518, HL8528 and HL8529 module is switched
ON.
2.5.1.
Electrical Characteristics
The following table describes the electrical characteristics of the VGPIO interface.
Table 10.
VGPIO Electrical Characteristics
Parameter
Min
Typ
Max
Remarks
Voltage level (V)
1.7
1.8
1.9
Both active mode and sleep mode
Current capability active
mode (mA)
50
Power Management support up to 50mA output.
Rise Time(ms)
1.5
Start-Up time from 0V
2.5.2.
Pin Description
The following table describes the pin description of the VGPIO interface.
Table 11.
VGPIO Pin Description
Pin Number
Signal Name
I/O
I/O Type
Function
45
VGPIO
1.8V
(Power supply) GPIO voltage output
2.6.
BAT_RTC
The AirPrime HL8518, HL8528 and HL8529 modules provide an input/output to connect a Real Time
Clock power supply.
This pin is used as a back-up power supply for the internal Real Time Clock. The RTC is supported
when VBATT is available but a back-up power supply is needed to save date and hour when VBATT
is switched off.
If VBATT is available, the back-up battery can be charged by the internal 1.8V power supply regulator.
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2.6.1.
Detailed Interface Specifications
Electrical Characteristics
The following table describes the electrical characteristics of the BAT_RTC interface.
Table 12.
BAT_RTC Electrical Characteristics
Parameter
Minimum
Typical
Maximum
Unit
Input voltage
-5%
1.8
+5%
Input current consumption
2.5
µA
Output current capability
mA
Output voltage
-5%
1.8
+5%
Max charging current (@VBATT=3.7V)
25
mA
Note:
When used with the HL Series snap-in socket, or when compatibility with HL6528x is needed,
Sierra Wireless recommends adding a 10µF capacitor to the BAT_RTC pin.
2.6.2.
Pin Description
The following table describes the pin description of the BAT_RTC interface.
Table 13.
BAT_RTC Pin Description
Pin Number
Signal Name
I/O
Function
21
BAT_RTC
I/O
Power supply for RTC backup
2.7.
SIM Interface
The AirPrime HL8518, HL8528 and HL8529 modules have one physical SIM interface, UIM1, which
has optional support for dual SIM application with an external SIM switch. Refer to Section 3.8 Dual
SIM Application for more information regarding dual SIM.
The UIM1 interface allows control of a 1.8V/3V SIM and is fully compliant with GSM 11.11
recommendations concerning SIM functions.
The five signals used by this interface are as follows:

UIM1_VCC: power supply

UIM1_CLK: clock

UIM1_DATA: I/O port

UIM1_RST: reset

UIM1_DET:SIM detection (optional)
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Product Technical Specification
2.7.1.
Detailed Interface Specifications
Electrical Characteristics
The following table describes the electrical characteristics of the UIM1 interface.
Table 14.
Electrical Characteristics of UIM1
Parameter
Min
Typ
Max
Remarks
UIM1 Interface Voltage : (V)
( VCC, CLK, IO, RST )
2.7
3.0
3.15
1.65
1.80
1.95
The appropriate output
voltage is auto detected
and selected by software.
VIH : Input Voltage-High
(VDD=1.8V)
VDD*0.7
1.95
VIL : Input Voltage-Low
(VDD=1.8V)
VDD*0.2
VOH : Output Voltage-High
(VDD=1.8V)
VDD*0.7
1.95
VOL : Output Voltage-Low
(VDD=1.8V)
VDD*0.2
VIH : Input Voltage-High
(VDD=3.0V)
VDD*0.7
3.15
VIL : Input Voltage-Low
(VDD=3.0V)
VDD*0.2
VOH : Output Voltage-High
(VDD=3.0V)
VDD*0.7
3.15
VOL : Output Voltage-Low
(VDD=3.0V)
VDD*0.2
1.33
1.80
2.1
High active
UIM1 Interface
Voltage: (V)
(VCC, CLK,
IO, RESET )
UIM1 DET
UIM1_VCC Current (mA)
10
Max output current in sleep
mode = 3 mA
UIM1_VCC Line Regulation (mV/V)
50
At Iout Max.
UIM1_VCC Power-up Setting Time (µs)
from power down
10
2.7.2.
Pin Description
The following table describes the pin description of the UIM1 interface.
Table 15.
UIM1 Pin Description
Pin Number
Signal Name
I/O
I/O Type
Function
26
UIM1_VCC
1.8V/3V
UIM1 Power supply
27
UIM1_CLK
1.8V/3V
UIM1 Clock
28
UIM1_DATA
I/O
1.8V/3V
UIM1 Data
29
UIM1_RESET
1.8V/3V
UIM1 Reset
64
UIM1_DET
1.8V
UIM1 detection
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Product Technical Specification
2.7.3.
Detailed Interface Specifications
UIM1_DET
UIM1_DET is used to detect and notify the application about the insertion and removal of a SIM
device in the SIM socket connected to the main SIM interface (UIM1). When a SIM is inserted, the
state of UIM1_DET transitions from logic 0 to logic 1. Inversely, when a SIM is removed, the state of
UIM1_DET transitions from logic 1 to logic 0.
The GPIO used for UIM1_DET is GPIO3.
Enabling or disabling this SIM detect feature can be done using the AT+KSIMDET command. For more
information about this command, refer to document [2] AirPrime HL6 and HL8 Series AT Commands
Interface Guide.
2.7.4.
Application
2.7.4.1.
Figure 6.
Reference Schematic
UIM1 Application Reference Schematic
2.7.4.2.
USIM Socket Pin Description
The following table describes the required USIM socket pins.
Table 16.
USIM Socket Pin Description
Pin Number
Signal Name
Description
UIM1_VCC
UIM1 Power supply
UIM1_RESET
UIM1 Reset
UIM1_CLK
UIM1 Clock
UIM1_DET
UIM1 detection
GROUND
GND
UIM1_DATA
UIM1 Data
VGPIO
Power supply
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Product Technical Specification
2.8.
Detailed Interface Specifications
USB
The AirPrime HL8518, HL8528 and HL8529 modules have one USB interface.
2.8.1.
Electrical Characteristics
The following table describes the electrical characteristics of the USB interface.
Table 17.
Electrical Characteristics of USB
Signal
I/O
I/O Type
USB_D+
I/O
USB_D-
I/O
USB data
(DP, DM)
I/O
USB_VBUS
2.8.2.
Min.
Typ.
Max.
Unit
Analog
3.06
3.3
3.6
Analog
3.06
3.3
3.6
VIH: Input Voltage-High
3.2
VIL: Input Voltage-Low
-0.3
0.8
VOL: Static Output Voltage-Low
0.45
VOH: Static Output Voltage-High
2.45
Voltage input
4.75
5.0
5.25
Analog
Analog
Parameter
USB_VBUS Input current consumption
mA
Pin Description
The following table describes the pin description of the USB interface.
Table 18.
USB Pin Description
Pin Number
Signal Name
I/O
I/O Type
Function
12
USB_D-
I/O
3.3V
USB data negative line pad
13
USB_D+
I/O
3.3V
USB data positive line pad
16
USB_VBUS
5V
USB VBUS
Note:
When the 5V USB supply is not available, connect USB_VBUS to VBATT to supply the USB
interface.
2.9.
Electrical Information I/O
The AirPrime HL8518, HL8528 and HL8529 modules support different groups of digital interfaces with
varying current drain limits. The following table enumerates these interface groupings and enumerates
the electrical characteristics of each digital interface.
The DC characteristics of the pads are compatible with CMOS JEDEC standard EIA/JESD8-5.
Table 19.
Digital I/O Electrical Characteristics
Parameter
Min
Typ
Max
VIL: Input voltage for general digital pad (V)
-0.2
VDD*0.2
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Product Technical Specification
Detailed Interface Specifications
Parameter
Min
Typ
Max
Conditions
VIH: Input voltage for general digital pad (V)
VDD*0.7
VDD + 0.2
Input / Output leakage Current (µA)
±0.7
VDD (V)
1.7
1.8
1.9
0.2
IOL = + 0.1mA
Driver Pad Class A
VOLA: Output Voltage-Low (V)
VOHA: Output Voltage-High (V)
0.35
IOL = +6.0mA
VDD-0.35
IOH = - 6.0mA
VDD-0.2
IOH = - 0.1mA
0.2
IOL = + 0.1mA
Driver Pad Class B
VOLB: Output Voltage-Low (V)
VOHB: Output Voltage-High (V)
0.35
IOL = +4.0 mA
VDD-0.35
IOH = - 4.0mA
VDD-0.2
IOH = - 0.1mA
Driver Pad Class C
VOLC: Output Voltage-Low (V)
VOHC: Output Voltage-High (V)
0.2
IOL = + 0.1mA
0.35
IOL = +2.0mA
VDD-0.35
IOH = - 2.0mA
VDD-0.2
IOH = - 0.1mA
Driver Pad Class D
VOLD: Output Voltage-Low (V)
VOHD: Output Voltage-High (V)
0.2
IOL = + 0.1mA
0.35
IOL = +1.0mA
VDD-0.35
IOH = - 1.0mA
VDD-0.2
IOH = - 0.1mA
0.2
IOL = + 0.1mA
Driver Pad Class E
VOLE: Output Voltage-Low (V)
VOHE: Output Voltage-High (V)
0.35
IOL = +1.0mA
VDD-0.35
IOH = - 1.0mA
VDD-0.2
IOH = - 0.1mA
2.10. General Purpose Input/Output (GPIO)
The AirPrime HL8518, HL8528 and HL8529 modules provide 12 GPIOs, 2 of which have multiplexes.
Table 20.
GPIO Pin Description
Pin Number
Signal Name
GPIO1
Multiplex
I/O
Power Supply Domain
I/O
1.8V
10
GPIO2*
I/O
1.8V
40
GPIO7
I/O
1.8V
41
GPIO8
I/O
1.8V
46
GPIO6
I/O
1.8V
52
GPIO10
I/O
1.8V
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Product Technical Specification
Pin Number
Signal Name
53
Detailed Interface Specifications
I/O
Power Supply Domain
GPIO11
I/O
1.8V
54
GPIO15
I/O
1.8V
58
GPIO12
PWM2
I/O
1.8V
64
GPIO3
UIM1_DET
I/O
1.8V
65
GPIO4
I/O
1.8V
66
GPIO5
I/O
1.8V
Multiplex
This pin can be used to trigger the module to wake up from Sleep Mode.
2.11. Main Serial Link (UART1)
The main serial link (UART1) is used for communication between the AirPrime HL8518, HL8528 and
HL8529 modules and a PC or host processor. It consists of a flexible 8-wire serial interface that
complies with RS-232 interface.
The supported baud rates of the UART1 are 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600,
115200, 230400, 460800, 500000, 750000, 921600, 1843200, 3000000, 3250000 and 6000000 bit/s.
The signals used by UART1 are as follows:

TX data (UART1_TX)

RX data (UART1_RX)

Request To Send (UART1_RTS)

Clear To Send (UART1_CTS)

Data Terminal Ready (UART1_DTR)

Data Set Ready (UART1_DSR)

Data Carrier Detect (UART1_DCD)

Ring Indicator (UART1_RI)
Note:
Signal names are according to PC view.
2.11.1. Pin Description
The following table describes the pin description of the UART1 interface.
Table 21.
UART1 Pin Description
Pin #
Signal Name*
I/O*
Description
UART1_RI
Signal incoming calls (voice and data), SMS, etc.
UART1_RTS
Wakes the module up when AT+KSLEEP=1 is used
UART1_CTS
Ready to receive AT commands
UART1_TX
Transmit data
UART1_RX
Receive data
UART1_DTR
(active low)
Prevents the module from entering sleep mode, switches between
data mode and command mode, and wakes the module up.
UART1_DCD
Signal data connection in progress
UART1_DSR
Signal UART interface is ON
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According to PC view.
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Product Technical Specification
Detailed Interface Specifications
2.11.2. 8-wire Application
Figure 7.
8-wire UART Application Example
2.11.3. 4-wire Application
Figure 8.
4-wire UART Application Example
2.11.4. 2-wire Application
Figure 9.
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2-wire UART Application Example
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Product Technical Specification
Detailed Interface Specifications
2.12. POWER ON Signal (PWR_ON_N)
A low level signal has to be provided to switch the AirPrime HL8518, HL8528 and HL8529 modules
ON.
It is internally connected to the permanent 1.8V supply regulator inside the HL8518, HL8528 and
HL8529 via a pull-up resistor. Once VBAT is supplied to the module, this 1.8V supply regulator will be
enabled and so the PWR_ON_N signal is by default at high level.
The PWR_ON_N signal’s characteristics are listed in the table below.
Table 22.
PWR_ON_N Electrical Characteristics
Parameter
Min
Input Voltage-Low (V)
Typical
Max
0.51
Input Voltage-High (V)
1.33
2.2
Power-up period (ms) from PWR_ON_N falling edge
2000
PWR_ON_N assertion time (ms)
25
Note:
As PWR_ON_N is internally pulled up with 200kΩ, a simple open collector or open drain transistor
must be used for ignition.
The software starts operating when the module is ON, but “AT Command Ready” will depend on
whether UART or USB is used.
Figure 10.
PWR_ON_N Assertion Time
VGPIO is an output from the module that can be used to check if the module is active.

When VGPIO = 0V, the module is OFF.

When VGPIO = 1.8V, the module is ON (it can be in idle, communication or sleep mode)
Note:
PWR_ON_N cannot be used to power the module off. To power the module off, use AT command
AT+CPOF.
2.13. Reset Signal (RESET_IN_N)
To reset the module, a low level pulse must be sent on the RESET_IN_N pin for 10ms. This action will
immediately restart the AirPrime HL8518, HL8528 and HL8529 modules with the PWR_ON_N signal
at low level. (If the PWR_ON_N signal is at high level, the module will be powered off.) As
RESET_IN_N is internally pulled up, a simple open collector or open drain transistor can be used to
control it.
The RESET_IN_N signal will reset the registers of the CPU and reset the RAM memory as well, for
the next power on.
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Product Technical Specification
Note:
Detailed Interface Specifications
As RESET_IN_N is referenced to the VGPIO domain (internally to the module), it is impossible to
reset before the module starts or to try to use RESET_IN_N as a way to start the module.
Another more costly solution would be to use MOS transistor to switch the power supply off and
restart the power up procedure using the PWR_ON_N input line.
Table 23.
RESET_IN_N Electrical Characteristics
Parameter
Min
Input Voltage-Low (V)
Typical
Max
0.51
Input Voltage-High (V)
1.33
2.2
Power-up period (ms) from RESET_IN_N falling edge*
2000
4117047
With the PWR_ON_N Signal at low level
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3. Design Guidelines
3.1.
Power-Up Sequence
Apply a LOW level logic to the PWR_ON_N pin (pin 59); within 25ms, VGPIO will appear to be at
1.8V. Either a USB or UART1 interface could be used to send AT commands. Note that for USB
connections, the time when AT commands can be sent will depend on the initialization time used for
the USB connection with the USB host.
Figure 11.
Note:
PWR_ON_N Sequence with VGPIO Information
As PWR_ON_N is internally pulled up with 200kΩ, a simple open collector or open drain transistor
must be used for ignition.
The PWR_ON_N pin has the minimum assertion time requirement of 25ms, with LOW active. Once
the valid power on trigger is detected, the PWR_ON_N pin status can be left open.
VBATT has to ramp up within 32 ms to reach the value of 3.2V; otherwise, the module may not power
up.
Figure 12.
3.2.
PWR_ON_N Sequence with Trampup
Module Switch-Off
AT command AT+CPOF enables the user to properly switch the AirPrime HL8518, HL8528 and
HL8529 modules off. The PWR_ON signal must be set to high (inactive) before the AT+CPOF
command is sent.
Note:
If the PWR_ON signal is active (low level) when the AT+CPOF command is sent, the module will
not power off.
If required, the module can be switched off by controlling the power supply. This can be used, for
example, when the system freezes and no reset line is connected to the AirPrime HL8518, HL8528
and HL8529 modules. In this case, the only way to get control over the module back is to switch off
the power line.
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Product Technical Specification
Figure 13.
Design Guidelines
Power OFF Sequence for PWR_ON_N, VGPIO
Note:
PWR_ON_N is internally pulled up by 200kΩ to 1.8V.
Caution:
Ensure that no external pull-ups are applied on IO pins while the module is OFF.
3.3.
Emergency Power OFF
If required, the module can be switched off by controlling the RESET_IN_N pin (pin 11). This must
only be used in emergency situations if the system freezes (not responding to AT commands).
To perform an emergency power off, a low level pulse must be sent on the RESET_IN_N pin for 10ms
while the PWR_ON signal is inactive (high level). This action will immediately shut the HL8518,
HL8528 and HL8529 modules down and the registers of the CPU and RAM memory will be reset for
the next power on.
3.4.
Sleep Mode Management
3.4.1.
Using UART
AT command AT+KSLEEP enables sleep mode configuration.
AT+KSLEEP=0:

The module is active when DTR signal is active (low electrical level).

When DTR is deactivated (high electrical level), the module will enter sleep mode after a
while.

On DTR activation (low electrical level), the module wakes up.
AT+KSLEEP=1:

The module determines when it enters sleep mode (when no more tasks are running).

“0x00” character on the serial link wakes the module up.
AT+KSLEEP=2:

The module never enters sleep mode.
3.4.2.
Using USB
Use AT+KSLEEP=1 to allow the module to automatically enter sleep mode while the USB interface is
in use.
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Product Technical Specification
3.5.
Design Guidelines
Power Supply Design
The AirPrime HL8518, HL8528 and HL8529 modules should not be supplied with voltage over 4.5V
even temporarily or however briefly.
If the system’s main board power supply unit is unstable or if the system’s main board is supplied with
over 4.5V, even in the case of transient voltage presence on the circuit, the module’s power amplifier
may be severely damaged.
To avoid such issues, add a voltage limiter to the module’s power supply lines so that VBATT and
VBATT_PA signal pads will never receive a voltage surge over 4.5V. The voltage limiter can be as
simple as a Zener diode with decoupling capacitors as shown in the diagram below.
Figure 14.
3.6.
Voltage Limiter Example
ESD Guidelines for SIM Card
Decoupling capacitors must be added as close as possible to the SIM card connectors on UIM1_CLK,
UIM1_RST, UIM1_VCC and UIM1_DATA signals to avoid EMC issues and to pass the SIM card type
approval tests, according to the drawings below.
A typical schematic for hardware SIM detection is provided below.
Figure 15.
4117047
EMC and ESD Components Close to the SIM
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Product Technical Specification
3.7.
Design Guidelines
ESD Guidelines for USB
When the USB interface is externally accessible, it is required to have ESD protection on the
USB_VBUS, USB_D+ and USB_D- signals.
Figure 16.
ESD Protection for USB
Note:
It is not recommended to have an ESD diode with feedback path from USB_VBUS to either
USB_D+ or USB_D-.
3.8.
Dual SIM Application
Using an external switch and GPIOs, the AirPrime HL8518, HL8528 and HL8529 modules can
support Dual SIM Single Standby with fast network switching. Refer to document [2] AirPrime HL6
and HL8 Series AT Commands Interface Guide for related AT commands.
Figure 17.
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Reference Design for Dual SIM Application
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Product Technical Specification
3.9.
Design Guidelines
Radio Frequency Integration
The AirPrime HL8518, HL8528 and HL8529 modules are equipped with an external antenna. A 50Ω
line matching circuit between the module, the customer’s board and the RF antenna is required, for
GSM feed path, as shown in the example below.
Figure 18.
Note:
4117047
GSM Antenna Connection with Antenna Detection
Antenna detection circuit is optional. Rant is the equivalent DC terminating resistor of the antenna.
Rant should be close to 10KΩ.
Rev 2.2
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36
4. Regulatory Legal Information
4.1.
Label
The AirPrime HL852x module is labeled with its own FCC ID on the shield side. Each HL852x variant
has its own FCC ID as listed in the table below.
Table 24.
AirPrime HL852x FCC IDs
Model Name
FCC ID
HL8528
N7NHL8528
HL8529
N7NHL8529
When the module is installed in a customer’s product, the FCC ID label on the module will not be
visible. To avoid this case, an exterior label must be stuck on the surface of the customer’s product to
indicate the FCC ID of the enclosed module. This label can use wording such as the following:
“Contains Transmitter module FCC ID: ” or
“Contains FCC ID: ”.
4.2.
FCC Regulations
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, and
2. This device must accept any interference received, including interference that may cause
undesired operation.
This device has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.
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Product Technical Specification
4.3.
Regulatory Legal Information
RF Exposure Information
This Modular Approval is limited to OEM installation for mobile and fixed applications only. The
antenna installation and operating configurations of this transmitter, including any applicable sourcebased time-averaging duty factor, antenna gain and cable loss must satisfy MPE categorical
Exclusion Requirements of §2.1091.
The antenna(s) used for this transmitter must be installed to provide a separation distance of at least
20 cm from all persons, must not be collocated or operating in conjunction with any other antenna or
transmitter, except in accordance with FCC multi-transmitter product procedures.
The end user has no manual instructions to remove or install the device and a separate approval is
required for all other operating configurations, including portable configurations with respect to 2.1093
and different antenna configurations.
When the module is installed in the host device, the FCC ID label must be visible through a window
on the final device or it must be visible when an access panel, door or cover is easily removed.
Otherwise, a second label must be placed on the outside of the final device that contains the following
text: ―Contains FCC ID: 
4.4.
IC Regulations
IC Radiation Exposure Statement:
This device complies with Industry Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions:
a. this device may not cause interference, and
b. this device must accept any interference, including interference that may cause
undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils
radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'entrainer des comportements non-desirés
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna
of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To
reduce potential radio interference to other users, the antenna type and its gain should be so
chosen that the equivalent isotropically radiated power (e.i.r.p) is not more than necessary for
successful communication.
Labeling Requirements for the Host Device (from Section 7.2, RSS RSP-100 issue 10,
November 2014): The host device shall be properly labeled to identify the module within the
host device. The Industry Canada certification label of a module shall be clearly visible at all
times when installed in the host device, otherwise the host device must be labeled to display
the Industry Canada certification number of the module, preceded by the words ― Contains
transmitter module‖, or the word ― Contains‖, or similar wording expressing the same
meaning, as follows: Contains transmitter module IC: .
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Product Technical Specification
Table 25.
Regulatory Legal Information
AirPrime HL852x IC
Model Name
IC
HL8528
2417C-HL8528
HL8529
2417C-HL8529
This device complies with IC radiation exposure limits set forth for an uncontrolled
environment. In order to avoid the possibility of exceeding the IC radio frequency exposure
limits, human proximity to the antenna shall not be less than 20cm (8 inches) during normal
operation.
Cet appareil est conforme aux limites d'exposition aux rayonnements de la IC CNR-102
définies pour un environnement non contrôlé. Afin d'éviter la possibilité de dépasser les
limites d'exposition aux fréquences radio de la IC CNR-102, la proximité humaine à l'antenne
ne doit pas être inférieure à 20 cm (8 pouces) pendant le fonctionnement normal.
This radio transmitter (identify the device by certification number, or model number if
Category II) has been approved by Industry Canada to operate with the antenna types listed
below with the maximum permissible gain and required antenna impedance for each antenna
type indicated. Antenna types not included in this list, having a gain greater than the
maximum gain indicated for that type, are strictly prohibited for use with this device.
4.5.
CE Warning
The minimum distance between the user and/or any bystander and the radiating structure of the
transmitter is 20cm.
Assessment of compliance of the product with the requirements relating to the Radio and
Telecommunication Terminal Equipment Directive (EC Directive 1999/5/EC) was performed by
Telefication BV (Notified Body No.0560)
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5. Terms and Abbreviations
Abbreviation
Definition
ADC
Analog to Digital Converter
AGC
Automatic Gain Control
AT
Attention (prefix for modem commands)
CDMA
Code Division Multiple Access
CF3
Common Flexible Form Factor
CLK
Clock
CODEC
Coder Decoder
CPU
Central Processing Unit
DAC
Digital to Analog Converter
DTR
Data Terminal Ready
EGNOS
European Geostationary Navigation Overlay Service
EMC
Electromagnetic Compatibility
EMI
Electromagnetic Interference
EN
Enable
ESD
Electrostatic Discharges
ETSI
European Telecommunications Standards Institute
FDMA
Frequency-division multiple access
GAGAN
GPS aided geo augmented navigation
GLONASS
Global Navigation Satellite System
GND
Ground
GNSS
Global Navigation Satellite System
GPIO
General Purpose Input Output
GPRS
General Packet Radio Service
GSM
Global System for Mobile communications
Hi Z
High impedance (Z)
IC
Integrated Circuit
IMEI
International Mobile Equipment Identification
I/O
Input / Output
LED
Light Emitting Diode
LNA
Low Noise Amplifier
MAX
Maximum
MIN
Minimum
MSAS
Multi-functional Satellite Augmentation System
N/A
Not Applicable
PA
Power Amplifier
PC
Personal Computer
PCB
Printed Circuit Board
PCL
Power Control Level
PLL
Phase Lock Loop
PWM
Pulse Width Modulation
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Product Technical Specification
Terms and Abbreviations
Abbreviation
Definition
QZSS
Quasi-Zenith Satellite System
RF
Radio Frequency
RFI
Radio Frequency Interference
RMS
Root Mean Square
RST
Reset
RTC
Real Time Clock
RX
Receive
SCL
Serial Clock
SDA
Serial Data
SIM
Subscriber Identification Module
SMD
Surface Mounted Device/Design
SPI
Serial Peripheral Interface
SW
Software
PSRAM
Pseudo Static RAM
TBC
To Be Confirmed
TBD
To Be Defined
TP
Test Point
TX
Transmit
TYP
Typical
UART
Universal Asynchronous Receiver-Transmitter
UICC
Universal Integrated Circuit Card
USB
Universal Serial Bus
UIM
User Identity Module
VBATT
Main Supply Voltage from Battery or DC adapter
VSWR
Voltage Standing Wave Ratio
WAAS
Wide Area Augmentation System
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