Sierra Wireless HL6528RD User Manual

Product Technical Specification

AirPrime HL6528RDx

December 08, 2015

Rev 2.0 December 08, 2015 1

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

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.

is open. Sierra Wireless modems may be used at this time.

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.

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

Windows

Macintosh
countries.

QUALCOMM

Other trademarks are the property of their respective owners.

®

is a registered trademark of NETGEAR, Inc., used under license.

®

and Windows Vista® are registered trademarks of Microsoft Corporation.

®

and Mac OS X® are registered trademarks of Apple Inc., registered in the U.S. and other

®

is a registered trademark of QUALCOMM Incorporated. Used under license.

Contact Information

Phone: [phone]

Sales Desk:

Post:

Technical Support:

RMA Support:

Web:

Consult our website for up-to-date product descriptions, documentation, application notes, firmware
upgrades, troubleshooting tips, and press releases: www.sierrawireless.com

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

Contact:

Sierra Wireless
13811 Wireless Way
Richmond, BC
Canada V6V 3A4

[e-mail]

[e-mail]

Fax: [phone]

http://www.sierrawireless.com/

http://www.sierrawireless.com/sales

Contents

1. INTRODUCTION .................................................................................................... 7

1.1. Common Flexible Form Factor (CF3) ............................................................................... 7

1.2. Physical Dimensions ....................................................................................................... 8

1.3. General Features ............................................................................................................ 8

1.4. GNSS Features ............................................................................................................... 9

1.5. Interfaces ........................................................................................................................ 9

1.6. Connection Interface ..................................................................................................... 10

1.7. ESD .............................................................................................................................. 10

1.8. Environmental and Certifications ................................................................................... 11

1.8.1. Environmental Specifications ................................................................................. 11

1.8.2. Regulatory ............................................................................................................. 11

1.8.3. RoHS Directive Compliant ..................................................................................... 11

1.8.4. Disposing of the Product ........................................................................................ 12

1.9. References .................................................................................................................... 12

2. DETAILED INTERFACE SPECIFICATIONS ....................................................... 13

2.1. Power Supply ................................................................................................................ 13

2.2. Current Consumption .................................................................................................... 13

2.3. VGPIO ........................................................................................................................... 15

2.4. BAT_RTC ...................................................................................................................... 1 5 

2.5. UIM Interface................................................................................................................. 1 6 

2.5.1. UIMx_DET ............................................................................................................. 17

2.6. USB Interface ................................................................................................................ 1 7 

2.7. Electrical Information for Digital I/O ............................................................................... 18

3. MECHANICAL DRAWINGS ................................................................................. 20

4. REGULATORY LEGAL INFORMATION ............................................................. 22

4.1. Label ............................................................................................................................. 22

4.2. FCC Regulations ........................................................................................................... 22

4.3. RF Exposure Information .............................................................................................. 23

4.4. IC Regulations ............................................................................................................... 23

4.5. CE ................................................................................................................................. 24

5. TERMS AND ABBREVIATIONS .......................................................................... 25

List of Figures

Figure 1. AirPrime HL6528RDx Module Mechanical Overview .................................................... 10

Figure 2. UIMx Implementation Example ..................................................................................... 17

Figure 3. AirPrime HL6528RDx (angular view) ............................................................................. 20

Figure 4. AirPrime HL6528RDx (side view) .................................................................................. 20

Figure 5. AirPrime HL6528RDx Module (top view) ....................................................................... 21

Figure 6. AirPrime HL6528RDx Module (bottom view with dimensions) ....................................... 21

Rev 2.0 December 08, 2015 5

List of Tables

Table 1. Supported Frequencies ................................................................................................... 7

Table 2. AirPrime HL6528RDx Features ....................................................................................... 8

Table 3. GNSS Capabilities .......................................................................................................... 9

Table 4. ESD Specifications ........................................................................................................ 10

Table 5. AirPrime HL6528RDx Module Environmental Specifications ......................................... 11

Table 6. Power Supply ................................................................................................................ 13

Table 7. Current Consumption .................................................................................................... 13

Table 8. Current Consumption per Power Supply (VBATT / VBATT_PA) ................................... 14

Table 9. VGPIO Electrical Characteristics ................................................................................... 15

Table 10. BAT_RTC Electrical Characteristics .............................................................................. 16

Table 11. Electrical Characteristics of UIMx .................................................................................. 16

Table 12. USB Pad Description .................................................................................................... 17

Table 13. USB_VBUS Electrical Characteristics ........................................................................... 17

Table 14. Digital I/O Electrical Characteristics – Input/Output Voltage .......................................... 18

Table 15. Digital I/O Electrical Characteristics – Group 1 Input/Output Current ............................ 18

Table 16. Digital I/O Electrical Characteristics – Group 2 Input/Output Current ............................ 19

Table 17. Digital I/O Electrical Characteristics – Group 3 Input/Output Current ............................ 19

Table 18. Digital I/O Electrical Characteristics – Group 4 Input/Output Current ............................ 19

Table 19. AirPrime HL6528RDx FCC IDs ..................................................................................... 22

Table 20. AirPrime HL6528RDx IC ............................................................................................... 24

Rev 2.0 December 08, 2015 6

1. Introduction

The HL6528RDx series of embedded modules were created to improve, expand and enhance the
design of the existing HL6528x.

This document defines the high level product features and illustrates the interfaces for the AirPrime
HL6528RDx, and covers the hardware aspects of the product series, including electrical and
mechanical.

Redesigned variants covered in this document are:

 HL6528RD

 HL6528RD-G

 HL6528RD-2.8V

 HL6528RD-G2.8V

The AirPrime HL6528RD and HL6528RD-G modules are 1.8V IO modules as defined in section
Error! Reference source not found. Error! Reference source not found.. 2.8V IO variants are also
available, and defined throughout this document as HL6528RD-2.8V and HL6528RD-G2.8V.
HL6528RDx denotes applicability to all four variants.

The AirPrime HL6528RDx belongs to the AirPrime HL Series from Essential Connectivity Module
family. This is an industrial-grade quad-band GSM/GPRS Embedded Wireless Module, designed for
the automotive market and any other market with similar quality and life-time support requirements.
The following table enumerates the frequencies supported by the HL6528RDx module.

Table 1. Supported Frequencies

RF Band Transmit band (Tx) Receive band (Rx) Maximum Output Power

GSM 850 824 to 849 MHz 869 to 894 MHz 2 Watts GSM and GPRS

E-GSM 900 880 to 915 MHz 925 to 960 MHz 2 Watts GSM and GPRS

DCS 1800 1710 to 1785 MHz 1805 to 1880 MHz 1 Watt GSM and GPRS

PCS 1900 1850 to 1910 MHz 1930 to 1990 MHz 1 Watt GSM and GPRS

This module supports a large variety of interfaces such as Analog and Digital Audio, as well as Dual
UIM Single Standby to provide customers with the highest level of flexibility in implementing high-end
solutions. In addition, both AirPrime HL6528RD-G and HL6528RD-G2.8V modules also embed a
high-performance GNSS receiver.

1.1. Common Flexible Form Factor (CF3)

The AirPrime HL6528RDx module belongs 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 CF
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 as Socketability depending on customer needs

3

form factor

Rev 2.0 December 08, 2015 7

Product Technical Specification Introduction

1.2. Physical Dimensions

The AirPrime HL6528RDx modules are compact, robust, fully shielded modules with the following
dimensions:

 Length: 23 mm

 Width: 22 mm

 Thickness: 2.50 mm (including the label)

 Weight : 2.25g (TBC)

Note: Dimensions specified above are typical values.

1.3. General Features

The table below summarizes the AirPrime HL6528RDx module features.

Table 2. AirPrime HL6528RDx Features

Feature Description

GSM Output Power

GPRS

Audio Interface

UIM Interface

Application Interface

SMS

Supplementary
Services

 Class 4 (2 W) for GSM 850 and E-GSM 900
 Class 1 (1 W) for DCS 1800 and PCS 1900

 Quad-band GSM 850/E-GSM 900/DCS 1800/PCS 1900
 GPRS Multi-slot class 10
 R99 support
 PBCCH support
 Coding schemes: CS1 to CS4

 Analog and Digital interfaces
 Supports Full Rate (FR), Enhanced Full Rate (EFR), Half Rate (HR) and

Adaptive Multi Rate (AMR)

 Noise reduction and echo cancellation
 DTMF generation

 Dual UIM Single Standby support
 1.8V/3.0V support for UIM1 and UIM2
 Supports UIM application tool kit with proactive UIM commands

 Full set of AT commands for GSM/GPRS including GSM 07.07 and 07.05

AT command sets

 Comprehensive set of dedicated AT commands for M2M applications

 SMS class 0,1 and 2
 SMS MT, MO
 SMS storage into UIM card or Flash memory
 Concatenation of MT SMS

 Call Forwarding
 Call Barring
 Multiparty Service
 Call Waiting
 Call Hold
 USSD
 Automatic answer

Product Technical Specification Introduction

Feature Description

RTC Real Time Clock (RTC) with calendar and alarm

Temperature Sensor

 Temperature monitoring
 Alarms

1.4. GNSS Features

The table below summarizes the GNSS capabilities of the AirPrime HL6528RD-G and HL6528RD­G2.8V modules.

Table 3. GNSS Capabilities

Feature Description

GPS L1 band (CDMA 1575.42 MHz)

GLONASS L1 Band (FDMA 1602MHz)

SBAS (TBC) WAAS, EGNOS, MSAS, GAGAN, QZSS

Channels 52

Antenna Passive or active antenna support

Assistance data Server-generated Extended Ephemeris

1.5. Interfaces

The AirPrime HL6528RD and HL6528RD-2.8V modules provide the following interfaces and
peripheral connectivity:

 1x – Backup Battery Interface

 2x – 1.8V/3V UIM

 1x – USB 1.1

 8x – GPIOs, 4 of which have multiplexes

 1x – 8-wire UART

 1x – Active Low PWR_ON_N

 1x – Active Low RESET_IN_N

 2x – ADC

 2x – System Clock Out

 1x – Analog Audio Interface (Differential input/output)

 1x – Digital Audio

 1x – I

 1x – Debug Interface

 1x – JTAG Interface

 1x – GSM Antenna

 1x – 2G TX Burst Indicator

2

C

Product Technical Specification Introduction

In addition to the interfaces above, the AirPrime HL6528RD-G and HL6528RD-G2.8V modules also
provide the following interfaces and peripheral connectivity:

 GPS Antenna

 External LNA Enable/Disable

 Pulse Per Second

1.6. Connection Interface

The AirPrime HL6528RDx module is an LGA form factor device. All electrical and mechanical
connections are made through the 146 pads Land Grid Array (LGA) on the bottom side PCB.

Figure 1. AirPrime HL6528RDx Module 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

1.7. ESD

Refer to the following table for ESD Specifications.

Note: Information specified in the following table is preliminary and subject to change.

Table 4. ESD Specifications

Category Connection Specification

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

Operational RF ports

Non-operational

Host connector
interface

ESD protection is highly recommended at the point where the
antenna (main and GPS) contacts are exposed.

Unless otherwise specified:



JESD22-A114 +/- 1500V Human Body Model



JESD22-A115 +/- 150V Machine Model

JESD22-C101C +/- 500V Charged Device Model



Product Technical Specification Introduction

Category Connection Specification

Signals

SIM connector ESD protection is highly recommended at the point where the

Other host signals

USIM contacts are exposed, and for any other signals that would
be subjected to ESD by the user.

1.8. Environmental and Certifications

1.8.1. Environmental Specifications

The environmental specification for both operating and storage conditions are defined in the table
below.

Table 5. AirPrime HL6528RDx Module Environmental Specifications

Conditions Range

Operating Class A -30°C to +70°C

Operating Class B -40°C to +85°C

Storage -40°C to +90°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.

1.8.2. Regulatory

The AirPrime HL6528RDx module is compliant with the following regulations: R&TTE directive, FCC,
IC, ANATEL and NCC.

1.8.3. RoHS Directive Compliant

The AirPrime HL6528RDx module is 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)”.

Product Technical Specification Introduction

1.8.4. 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.

1.9. References

[1] AirPrime HL Series Customer Process Guidelines

Reference Number: 4114330

[2] AirPrime HL6528RDx AT Commands Interface Guide

Reference Number: 4117743

[3] AirPrime HL Series Development Kit User Guide

Reference Number: 4114877

2. Detailed Interface Specifications

Note: If not specified, all electrical values are given for VBATT=3.7V and an operating temperature of

25°C.

If needed, the AirPrime HL6528RDx module can support two different voltages for VBATT and
VBATT_PA power inputs. However, using the same power supply for both signals is recommended.

2.1. Power Supply

The AirPrime HL6528RDx module is supplied through the VBATT signal with the following
characteristics.

Table 6. Power Supply

Minimum Typical Maximum

VBATT voltage (V) 3.351 3.7 4.3

VBATT_PA voltage (V) Full Specification 3.351 3.7 4.3

VBATT_PA voltage (V) Extended Range2 2.8

1 This value has to be guaranteed during the burst

2 No guarantee of 3GPP performances over extended range

2

3.7 4.3

2.2. Current Consumption

The following table lists the current consumption of the AirPrime HL6528RDx module at different
conditions.

Note: Typical values are defined for VBATT/VBATT_PA at 3.7V and 25°C, for 50Ω impedance at all RF

Table 7. Current Consumption

Parameters Typical Maximum

Off mode (HL6528RD and HL6528RD-2.8V) (µA) 200 TBD

Off mode (HL6528RD-G and HL6528RD-G2.8V) (µA) TBD TBD

GSM Sleep mode (average, mA)
Single UIM operation

GSM Sleep mode (average, mA)
Dual UIM operation

GSM in communication mode (average, mA)

GPRS (2 TX, 3 RX) (average, mA)

ports. Maximum values are provided for VSWR 3:1 with worst conditions among supported ranges
of voltage and temperature.

DRX2 1.7 TBD

DRX5 TBD TBD

DRX9 1.3 TBD

DRX2 TBD TBD

DRX5 TBD TBD

DRX9 TBD TBD

E-GSM 900 / GSM 850 (PCL=5) 220 TBD

DCS 1800 / PCS 1900 (PCL=0) 150 TBD

E-GSM 900 / GSM 850 (PCL=5) 330 TBD

DCS 1800 / PCS 1900 (PCL=0) 230 TBD

Rev 2.0 December 08, 2015 13

Product Technical Specification Detailed Interface Specifications

Parameters Typical Maximum

Peak Current consumption (peak, A)

GNSS Acquisition1 (average, mA)
GSM registered on network

GNSS Acquisition1 (average, mA)
GSM in Flight mode

GNSS Navigation (1Hz)1 (average, mA)
GSM registered on network

GNSS Navigation (1Hz)1 (average, mA)
GSM in Flight mode

GNSS Hibernate mode2 (average, mA)
GSM registered on network

1 Maximum SVs in view, signal level @-130dBm, high gain configuration

2 Hot start conditions are maintained in Hibernate mode

3 Baseband is running (or no sleep mode allowed) in max value condition. Refer to document [2] AirPrime

HL6528RDx AT Commands Interface Guide for sleep mode description.

4 Baseband is in sleep mode in min value condition. Refer to document [2] AirPrime HL6528RDx AT Commands

Interface Guide for sleep mode description.

E-GSM 900 / GSM 850 1.5 TBD

DCS 1800 / PCS 1900 0.9 TBD

3

Max value

TBD TBD

Min value4 TBD TBD

3

Max value

TBD TBD

Min value4 TBD TBD

3

Max value

TBD TBD

Min value4 TBD TBD

Max value

3

TBD TBD

Min value4 TBD TBD

3

Max value

TBD TBD

Min value4 TBD TBD

Table 8. Current Consumption per Power Supply (VBATT / VBATT_PA)

Parameters Typical Maximum

VBATT_PA

Peak current (A)
GPRS communication

mode, 2TX

Peak current (A)
GSM communication

mode, 1TX

Average current (mA)
GSM communication

mode, 1TX

Peak current (A)

E-GSM 900 / GSM 850 (PCL=5) TBD TBD

DCS 1800/ PCS 1900 (PCL=0) TBD TBD

E-GSM 900 / GSM 850 (PCL=5) TBD TBD

DCS 1800/ PCS 1900 (PCL=0) TBD TBD

E-GSM 900 / GSM 850 (PCL=5) TBD TBD

DCS 1800/ PCS 1900 (PCL=0) TBD TBD

E-GSM 900 / GSM 850 (PCL=5) TBD TBD

GPRS communication

DCS 1800/ PCS 1900 (PCL=0) TBD TBD

E-GSM 900 / GSM 850 (PCL=5) TBD TBD

DCS 1800/ PCS 1900 (PCL=0) TBD TBD

E-GSM 900 / GSM 850 (PCL=5) TBD TBD

VBATT
(HL6528RD and

HL6528RD-2.8V)

mode, 2TX

Peak current (A)
GSM communication

mode, 1TX

Average current (mA)
GSM communication

mode, 1TX

DCS 1800/ PCS 1900 (PCL=0) TBD TBD

Rev 2.0 December 08, 2015 14

Product Technical Specification Detailed Interface Specifications

Parameters Typical Maximum

VBATT
(HL6528RD-G

and HL6528RD­G2.8V)

Peak current (A)
GPRS communication

mode, 2TX GNSS
Navigation mode

Peak current (A)
GSM communication

mode, 1TX GNSS
Navigation mode

Average current (mA)
GSM communication

mode, 1TX GNSS
Navigation mode

E-GSM 900 / GSM 850 (PCL=5) TBD TBD

DCS 1800/ PCS 1900 (PCL=0) TBD TBD

E-GSM 900 / GSM 850 (PCL=5) TBD TBD

DCS 1800/ PCS 1900 (PCL=0) TBD TBD

E-GSM 900 / GSM 850 (PCL=5) TBD TBD

DCS 1800/ PCS 1900 (PCL=0) TBD TBD

2.3. VGPIO

The VGPIO output can be used to:

 Pull-up signals such as I/Os

 Supply the digital transistors driving LEDs

The VGPIO output is available when the AirPrime HL6528RDx module is switched ON.

Caution: VGPIO is only on when RESET_IN_N and PWR_ON_N are both at low level.

Table 9. VGPIO Electrical Characteristics

HL6528RD, HL6528RD-G

Parameter

Min Typ Max Min Typ Max

Voltage level (V) 1.70 1.80 1.90 2.7 2.80 2.95

Current capability
active mode (mA)

Current capability sleep
mode (mA)

Line regulation (mV/V) - -

Rise Time(ns) - - 6 (TBC) - - 6 (TBC)

- - 50 - - 50

- - 3 (TBC) - - 3 (TBC)

50
(TBC)

HL6528RD-2.8V,
HL6528RD-G2.8V

- -

50
(TBC)

Remarks

Both active mode
and sleep mode

Iout = MAX

Test load
capacitor = 30 pF

2.4. BAT_RTC

The AirPrime HL6528RDx module provides an input/output to connect a Real Time Clock power
supply.

This pad 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.

Rev 2.0 December 08, 2015 15

Product Technical Specification Detailed Interface Specifications

If VBATT is available, the back-up battery can be charged by the internal 2.8 V power supply
regulator.

Table 10. BAT_RTC Electrical Characteristics

Parameter Minimum Typical Maximum

Input voltage (V) 2.0 2.8 3.15

Input current consumption (µA) - 2.5 56

Output voltage (V) 2.82 2.8 3.18

Max charging current (@VBATT=3.6V) (mA) - 0.6 -

Note: If unused, it is recommended to add a common 10 µF capacitor to BAT_RTC.

2.5. UIM Interface

The AirPrime HL6528RDx has two physical UIM interfaces – one main UIM interface (UIM1), and a
second UIM interface (UIM2) reserved for Dual UIM Single Standby option.

Both UIM interface allow control of a 1.8V/3V UIM and are fully compliant with GSM 11.11
recommendations related to UIM functions.

The five signals used by the UIMx interface are as follows:

 UIMx_VCC: power supply

 UIMx_CLK: clock

 UIMx_DATA: I/O port

 UIMx_RESET: reset

 UIMx_DET: UIM detection (optional)

Table 11. Electrical Characteristics of UIMx

Parameter Min Typ Max Remarks

UIMx Interface Voltage (V)
(VCC, CLK, DATA, RESET)

UIMx_VCC Current (mA) - - 10 Max output current in sleep mode = 3 mA

UIMx_VCC Line Regulation
(mV/V)

UIMx_VCC Power-up Setting
Time (µs) from power down

Logic 1 of UIMx_DET (V)

Logic 0 of UIMx_DET (V)

2.7 3.0 3.15

1.65 1.80 1.95

- - 50 At Iout_Max

- 10 -

2.4 - - For HL6528RD-2.8V and HL6528RD-G2.8V

1.4 - - For HL6528RD and HL6528RD-G

- - 0.4 For HL6528RD-2.8V and HL6528RD-G2.8V

- - 0.4 For HL6528RD and HL6528RD-G

The appropriate output voltage is auto
detected and selected by software

Rev 2.0 December 08, 2015 16

Product Technical Specification Detailed Interface Specifications

Figure 2. UIMx Implementation Example

2.5.1. UIMx_DET

UIMx_DET is used to detect and notify the application about the insertion and removal of a UIM
device in the UIM socket connected to the UIM interface (UIM1 or UIM2). When a UIM is inserted, the
state of UIMx_DET transitions from logic 0 to logic 1. Inversely, when a UIM is removed, the state of
UIM1_DET transitions from logic 1 to logic 0.

The GPIO used for UIM1_DET is GPIO3, and the GPIO used for UIM2_DET is GPIO4.

2.6. USB Interface

The AirPrime HL6528RDx has one USB interface.

USB_VBUS is used for USB connection detection purposes. For details, refer to document [2]
AirPrime HL6528RDx AT Commands Interface Guide.

Table 12. USB Pad Description

Pad # Signal Name I/O Function

12 USB_D- I/O USB data negative

13 USB_D+ I/O USB data position

16 USB_VBUS I USB VBUS

Table 13. USB_VBUS Electrical Characteristics

Parameter Minimum Typical Maximum Unit

Input voltage 4.75 5.0 5.25 V

Input current consumption - 1 - mA

Rev 2.0 December 08, 2015 17

Product Technical Specification Detailed Interface Specifications

2.7. Electrical Information for Digital I/O

The AirPrime HL6528RDx supports four groups of digital interfaces with varying current drain limits.

Table 14 Digital I/O Electrical Characteristics – Input/Output Voltage provides the input and output
voltage values of the digital interfaces, while the succeeding tables provides the input and output
current per digital IO group. Digital IO groups are as follows:

 Group 1:

 GPIO2
 GPIO6
 GPIO7
 GPIO8
 PPS
 EXT_LNA_EN

 Group 2:

 UART1

 Group 3:

 GPIO3
 GPIO4

2

 I

C

 Group 4:

 PCM
 DEBUG_TX

Table 14. Digital I/O Electrical Characteristics – Input/Output Voltage

HL6528RD, HL6528RD-G HL6528RD-2.8V, HL6528RD-G2.8V

Parameter

Min Typ Max Min Typ Max

Input Voltage-High (V) 1.6 2.1 2.6 3.1

Input Voltage-Low (V) 0.15 0.15

Output Voltage-High (V) 1.206 2.1 1.87 3.1

Output Voltage-Low (V) 0.4 0.4

Table 15. Digital I/O Electrical Characteristics – Group 1 Input/Output Current

HL6528RD,

Parameter

Input Current-High(µA) -22.5 12.5 -2 Current consumption

Input Current-Low(µA) -82.5 -6.1 2 Current consumption

DC Output Current-High (mA) 16 0.02

DC Output Current-Low (mA) -16 -1

HL6528RD-G

Min Typ Max Min Typ Max

HL6528RD-2.8V,
HL6528RD-G2.8V

Notes

Rev 2.0 December 08, 2015 18

Product Technical Specification Detailed Interface Specifications

Table 16. Digital I/O Electrical Characteristics – Group 2 Input/Output Current

Parameter

HL6528RD,
HL6528RD-G

HL6528RD-2.8V,
HL6528RD-G2.8V

Notes

Min Typ Max Min Typ Max

Input Current-High(µA) -22.5 12.5 -22.5 12.5 Current consumption

Input Current-Low(µA) -82.5 -6.1 -82.5 -6.1 Current consumption

DC Output Current-High (mA) 1.5 16

DC Output Current-Low (mA) -1.5 -16

Table 17. Digital I/O Electrical Characteristics – Group 3 Input/Output Current

Parameter

HL6528RD,
HL6528RD-G

HL6528RD-2.8V,
HL6528RD-G2.8V

Notes

Min Typ Max Min Typ Max

Input Current-High(µA) -2 -22.5 12.5 Current consumption

Input Current-Low(µA) 2 -82.5 -6.1 Current consumption

DC Output Current-High (mA) 0.02 16

DC Output Current-Low (mA) -1 -16

Table 18. Digital I/O Electrical Characteristics – Group 4 Input/Output Current

Parameter

HL6528RD,
HL6528RD-G

HL6528RD-2.8V,
HL6528RD-G2.8V

Notes

Min Typ Max Min Typ Max

Input Current-High(µA) -22.5 12.5 -22.5 12.5 Current consumption

Input Current-Low(µA) -82.5 -6.1 -82.5 -6.1 Current consumption

DC Output Current-High (mA) 16 16

DC Output Current-Low (mA) -16 -16

Note: The PCM interface only supports 2.8V even with 1.8V configuration.

Rev 2.0 December 08, 2015 19

3. Mechanical Drawings

Figure 3. AirPrime HL6528RDx (angular view)

Figure 4. AirPrime HL6528RDx (side view)

Rev 2.0 December 08, 2015 20

Product Technical Specification Mechanical Drawings

Figure 5. AirPrime HL6528RDx Module (top view)

Figure 6. AirPrime HL6528RDx Module (bottom view with dimensions)

Rev 2.0 December 08, 2015 21

4. Regulatory Legal Information

4.1. Label

The AirPrime HL6528RDx module is labeled with its own FCC ID on the shield side. Each
HL6528RDx variant has its own FCC ID as listed in the table below.

Table 19. AirPrime HL6528RDx FCC IDs

Model Name FCC ID

HL6528RD N7NHL6528RD

HL6528RD-G N7NHL6528RDG

HL6528RD-2.8V N7NHL6528RD28V

HL6528RD-G2.8V N7NHL6528RDG28V

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: <FCC ID as listed in Table 19 AirPrime HL6528RDx FCC
IDs>” or “Contains FCC ID: <FCC ID as listed in Table 19 AirPrime HL6528RDx FCC IDs>”.

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.

Rev 2.0 December 08, 2015 22

Product Technical Specification Regulatory Legal Information

4.3. 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.

According to the MPE RF explore report, maximum antenna gain allowed for use with this device is

3.1 dBi for GSM 850 and 2 dBi for PCS 1900.

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: <FCC ID as listed in Table 19 AirPrime HL6528RDx FCC IDs>

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:

(1) this device may not cause interference, and
(2) 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: <IC as listed below>.

Rev 2.0 December 08, 2015 23

Product Technical Specification Regulatory Legal Information

Table 20. AirPrime HL6528RDx IC

Model Name IC

HL6528RD 2417C-HL6528RD

HL6528RD-G 2417C-HL6528RDG

HL6528RD-2.8V 2417C-HL6528RD28V

HL6528RD-G2.8V 2417C-HL6528RDG28

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

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)

Rev 2.0 December 08, 2015 24

5. Terms and Abbreviations

Abbreviation Definition

ADC Analog to Digital Converter

AGC Automatic Gain Control

AT Attention (prefix for modem commands)

AVL Automatic Vehicle Location

CCB Customer Carrier Board

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

Rev 2.0 December 08, 2015 25

Product Technical Specification Terms and Abbreviations

Abbreviation Definition

PWM Pulse Width Modulation

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

SV Satellite Vehicle

SW Software

PSRAM Pseudo Static RAM

TBC To Be Confirmed

TBD To Be Defined

TP Test Point

TTS Text To Speech

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

Rev 2.0 December 08, 2015 26