Telit Communications S p A GE864Q2B User Manual

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864

QUAD V2

and GE864 DUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

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GE864

GE864----QUAD V2 / GE864

GE864GE864

APPLICABILITY TABLE

APPLICABILITY TABLEAPPLICABILITY TABLE

PRODUCT

PRODUCTPRODUCT

GE864

864----QUAD

GEGE

864864

GE864

864----DUAL V2

GEGE

864864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

QUAD V2

QUADQUAD

V2 V2

DUAL V2

DUAL V2DUAL V2

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

Page 3

GE864

DISCLAIMER

DISCLAIMERDISCLAIMER

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

The information contained in this document is the proprietary information of Telit

Communications S.p.A. and its affiliates (“TELIT”).

The contents are confidential and any disclosure to persons other than the officers, employees, agents or subcontractors of the owner or licensee of this document, without the prior written consent of Telit, is strictly prohibited.

Telit makes every effort to ensure the quality of the information it makes available. Notwithstanding the foregoing, Telit does not make any warranty as to the information contained herein, and does not accept any liability for any injury, loss or damage of any kind incurred by use of or reliance upon the information.

Telit disclaims any and all responsibility for the application of the devices characterized in this document, and notes that the application of the device must comply with the safety standards of the applicable country, and where applicable, with the relevant wiring rules.

Telit reserves the right to make modifications, additions and deletions to this document due to typographical errors, inaccurate information, or improvements to programs and/or equipment at any time and without notice.

Such changes will, nevertheless be incorporated into new editions of this document.

Copyright: Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited. Offenders will be held liable for payment of damages. All rights are reserved.

Page 4

GE864

GE864----QUAD V2 / GE864

GE864GE864

Contents

ContentsContents

APPLICABILITY TABLE .............................................................................................................................................. 2

1. INTRODUCTION

INTRODUCTION ................................

1.1.

INTRODUCTIONINTRODUCTION

................................................................

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

................................................................

.....................................

................................................................

.....6666

..........

1.1. S

1.2. A

1.3. C

1.4. D

1.5. T

1.6. R

1.7. D

2. OVERVIEW

2.2.

3. GE864

3.3.

4. GE864

4.4.

4.1.

5. HARDWARE COMMANDS

5.5.

5.1. T

5.2. T

6. PO

6.6.

6.1. P

6.2. G

COPE

.................................................................................................................................................................. 6

UDIENCE ONTACT INFORMATION, SUPPORT OCUMENT ORGANIZATION EXT CONVENTIONS ELATED DOCUMENTS OCUMENT HISTORY

OVERVIEW ................................

OVERVIEWOVERVIEW

GE864----QUAD V2 / GE864

GE864GE864

GE864----QUAD V2 / GE864

GE864GE864

PIN-OUT........................................................................................................................................................... 12

4.1.1. BGA Balls Layout..................................................................................................................................... 17

HARDWARE COMMANDS ................................

HARDWARE COMMANDSHARDWARE COMMANDS

URNING ON THE URNING

5.2.1. Hardware Unconditional Restart

POWER SUPPLY

WER SUPPLY................................

POPO

WER SUPPLYWER SUPPLY

OWER SUPPLY REQUIREMENTS ENERAL DESIGN RULES

6.2.1. Electrical Design Guidelines

6.2.2. Thermal Design Guidelines

6.2.3. Power Supply PCB Layout Guidelines

6.2.4. Parameters for ATEX Applications

............................................................................................................................................................. 6

........................................................................................................................ 6

.................................................................................................................................... 7

.............................................................................................................................................. 8

........................................................................................................................................... 8

............................................................................................................................................. 9

................................................................

QUAD V2 / GE864----DUAL MECHANICAL DIME

QUAD V2 / GE864QUAD V2 / GE864

QUAD V2 / GE864----DUAL V2 MODULE CONNE

QUAD V2 / GE864QUAD V2 / GE864

GE864-QUAD V2 / GE864-DUAL

OFF

THE

GE864-QUAD V2 / GE864-DUAL

................................................................

DUAL MECHANICAL DIMENSIONS

DUAL MECHANICAL DIMEDUAL MECHANICAL DIME

DUAL V2 MODULE CONNECTIONS

DUAL V2 MODULE CONNEDUAL V2 MODULE CONNE

................................................................

........................................................................................................ 22

................................................................

......................................................................................................................... 24

.................................................................................................................................... 25

............................................................................................................... 25

................................................................................................................. 29

.................................................................................................... 31

................................................................

NSIONS................................

NSIONSNSIONS

CTIONS ................................

CTIONSCTIONS

................................................................

V2................................................................................... 19

V2 ................................................................................. 21

................................................................................................ 30

.............................................................

................................................................

.............................................................

................................................................

............................................

................................................................

.............................11

..........................................................

.............................12

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.....................................................

................................................................

...................................

................................................................

..................... 19

..........................................

............ 10

........................

1010

1111

1212

1919

... 24

......

2424

7. ANTENNA

ANTENNA ................................

7.7.

ANTENNAANTENNA

7.1. GSM A

7.2. GSM A

8. LOGIC LEVEL SPECIFIC

LOGIC LEVEL SPECIFICATIONS

8.8.

LOGIC LEVEL SPECIFICLOGIC LEVEL SPECIFIC

8.1. R

9. SERIAL PORTS

SERIAL PORTS ................................

9.9.

SERIAL PORTSSERIAL PORTS

9.1. MODEM SERIAL

9.2. RS232 L

9.3. 5V UART L

10.

10. AUDIO SECT

10.10.

AUDIO SECTION OVERVIEW

AUDIO SECTAUDIO SECT

10.1. S

10.2. E

10.2.1. Input Lines Characteristics ...................................................................................................................... 46

10.2.2. Output Lines Characteristics.................................................................................................................... 47

................................................................

NTENNA REQUIREMENTS NTENNA – INSTALLATION GUIDELINES

ATIONS ................................

ATIONSATIONS

ESET SIGNAL

ELECTION MODE

LECTRICAL CHARACTERISTICS

.................................................................................................................................................... 36

................................................................

PORT.................................................................................................................................... 37

EVEL TRANSLATION

ION OVERVIEW ................................

ION OVERVIEWION OVERVIEW

............................................................................................................................................... 44

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.......................................................................................................................... 33

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............................................................................................................................. 39

........................................................................................................................... 41

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........................................................................................................................ 46

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.....37

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............. 44

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3333

3535

3737

4444

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11.

11. GENERAL PURPOSE I/O

11.11.

GENERAL PURPOSE I/O ................................

GENERAL PURPOSE I/OGENERAL PURPOSE I/O

11.1. GPIO L

11.2.

11.3.

11.4.

11.5. U

SING THE ALARM OUTPUT

11.6.

11.7.

OGIC LEVELS

SING A

GPIO P

SING A

GPIO P

SING THE RF TRANSMISSION CONTROL

SING THE

SING THE BUZZER OUTPUT

AGNETIC BUZZER CONCEPTS

......................................................................................................................................... 50

AD AS AD AS

RFTXMON O

GPIO6................................................................................................................................... 53

11.7.1. Short Description

11.8.1 Frequency Behavior

11.7.2. Power Supply Influence

11.7.3. Warning

.................................................................................................................................................. 55

11.7.4. Working Current Influence

11.8.

SING THE TEMPERATURE MONITOR FUNCTION

11.8.1. Short Description

11.8.2. Allowed GPIO

11.9.

NDICATION OF NETWORK SERVICE AVAILABILITY

11.10. RTC B

11.11. DAC C

YPASS OUT ONVERTER

11.11.1. Description

......................................................................................................................................... 56

........................................................................................................................................... 58

............................................................................................................................................ 59

......................................................................................................................................... 59

11.11.2. Enabling DAC

11.11.3. Low Pass Filter Example

11.12. ADC C

11.12.1. Description

ONVERTER

............................................................................................................................................ 60

......................................................................................................................................... 60

11.12.2. Using ADC Converter

11.13. D

EBUG OF THE

GE864-QUAD V2 / GE864-DUAL V2

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

................................................................

INPUT........................................................................................................................ 51

OUTPUT .................................................................................................................... 51

UTPUT

GPIO5.......................................................................................................... 52

GPIO7................................................................................................................ 53

......................................................................................................................... 54

.................................................................................................................................. 54

................................................................................................................................... 55

....................................................................................................................... 55

.................................................................................................................. 56

.................................................................................................................................. 56

..................................................................................................................................... 59

................................................................................................................. 60

........................................................................................................................ 61

................................................................

GPIO4.............................................................................................. 51

............................................................................................... 56

............................................................................................. 57

IN PRODUCTION

..................................................

................................................................

....................................................... 61

.................. 49

....................................

4949

12.

12. ASSEMBLY THE GE864

12.12.

13.

13. PACKING SYSTEM

13.13.

14.

14. CONFORMITY ASSESSMEN

14.14.

15.

15. SAFETY RECOMMENDATIO

15.15.

ASSEMBLY THE GE864----QUAD V2 / GE864

ASSEMBLY THE GE864ASSEMBLY THE GE864

12.1. R

12.2. S

12.3. PCB

12.4. S

13.1. M

ECOMMENDED FOOT PRINT FOR THE APPLICATION

TENCIL

............................................................................................................................................................. 63

PAD DESIGN

OLDER PASTE

12.4.1. GE865 Solder reflow................................................................................................................................ 66

PACKING SYSTEM................................

PACKING SYSTEMPACKING SYSTEM

OISTURE SENSIBILITY

CONFORMITY ASSESSMENT ISSUES

CONFORMITY ASSESSMENCONFORMITY ASSESSMEN

SAFETY RECOMMENDATIONS

SAFETY RECOMMENDATIOSAFETY RECOMMENDATIO

................................................................................................................................................... 65

QUAD V2 / GE864----DUAL V2 ON THE BOARD

QUAD V2 / GE864QUAD V2 / GE864

............................................................................................................................................... 64

................................................................

...................................................................................................................................... 69

T ISSUES ................................

T ISSUEST ISSUES

NS ................................

................................................................

NSNS

................................................................

DUAL V2 ON THE BOARD ................................

DUAL V2 ON THE BOARDDUAL V2 ON THE BOARD

.......................................................................................... 63

................................................................

............................................................

................................................................

..............................................................

................................................................

.............................................

................................................................

.........................................

................................................................

............................ 68

........................................................

.............................. 70

............................................................

............. 62

..........................

6262

6868

7070

......... 72

..................

7272

Page 6

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

1. Introduction

1.1. Scope

The aim of this document is the description of some hardware solutions useful for developing a product with the Telit GE864-QUAD V2 / GE864-DUAL V2 module.

1.2. Audience

This document is intended for Telit customers, who are integrators, about to implement their applications using our GE864-QUAD V2 / GE864-DUAL V2 module.

1.3. Contact Information, Support

For general contact, technical support, to report documentation errors and to order manuals, contact Telit Technical Support Center (TTSC) at:

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

TS-EMEA@telit.com TS-NORTHAMERICA@telit.com TS-LATINAMERICA@telit.com TS-APAC@telit.com

Alternatively, use:

http://www.telit.com/en/products/technical-support-center/contact.php

For detailed information about where you can buy the Telit modules or for recommendations on accessories and components visit:

http://www.telit.com

To register for product news and announcements or for product questions contact

Telit’s Technical Support Center (TTSC).

Our aim is to make this guide as helpful as possible. Keep us informed of your comments and suggestions for improvements.

Telit appreciates feedback from the users of our information.

Page 7

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

1.4. Document Organization

This document contains the following chapters:

Chapter 1: “Introduction” provides a scope for this document, target audience, contact and support information, and text conventions.

Chapter 2: “Overview” provides an overview of the document.

Chapter 3: “GE864-QUAD V2 / GE864-DUAL V2 Mechanical Dimensions”

Chapter 4: “GE864-QUAD V2 / GE864-DUAL V2 Module Connections” deals with the pin out configuration and layout.

Chapter 5: “Hardware Commands” How to control the module via hardware.

Chapter 6: “Power supply” Power supply requirements and general design rules.

Chapter 7: “Antenna” The antenna connection and board layout design are the most important parts in the full product design

Chapter 8: “Logic Level specifications” Specific values adopted in the implementation of logic levels for this module.

Chapter 9: “Serial ports” The serial port on the Telit GE864-QUAD V2 / GE864-DUAL is the core of the interface between the module and OEM hardware

Chapter 10: “Audio Section overview” Refers to the audio blocks of the Base Band Chip of the GE864-QUAD V2 / GE864-DUAL Telit Modules.

Chapter 11: “General Purpose I/O” How the general purpose I/O pads can be configured.

Chapter 12 “DAC and ADC Section” Deals with these two kind of converters.

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

Chapter 13: “Mounting the GE864-QUAD V2 / GE864-DUAL V2 on the application board” Recommendations and specifics on how to mount the module on the user’s

board.

Page 8

1.5. Text Conventions

Danger

Danger – This information MUST be followed or catastrophic equipment failure

Danger Danger or bodily injury may occur.

or bodily injury may occur.

or bodily injury may occur.or bodily injury may occur.

Caution or Warning

Caution or Warning – Alerts the user to important points about integratin

Caution or Warning Caution or Warning module, if these points are not followed, the module and end user equipment

module, if these points are not followed, the module and end user equipment

module, if these points are not followed, the module and end user equipment module, if these points are not followed, the module and end user equipment may fail or malfunction.

may fail or malfunction.

may fail or malfunction.may fail or malfunction.

Tip or Information

Tip or Information – Provides advice and suggestions that may be useful when

Tip or Information Tip or Information integrating the module.

integrating the module.

integrating the module.integrating the module.

All dates are in ISO 8601 format, i.e. YYYY-MM-DD.

This information MUST be followed or catastrophic equipment failure

This information MUST be followed or catastrophic equipment failure This information MUST be followed or catastrophic equipment failure

Alerts the user to important points about integrating the

Alerts the user to important points about integratin Alerts the user to important points about integratin

Provides advice and suggestions that may be useful when

Provides advice and suggestions that may be useful when Provides advice and suggestions that may be useful when

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

g the

g the g the

1.6. Related Documents

• Telit's GSM/GPRS Family Software User Guide, 1vv0300784

• Audio settings application note , 80000NT10007a

• Digital voice Interface Application Note, 80000NT10004a

• Product description, 80331ST10074a

• SIM Holder Design Guides, 80000NT10001a

• AT Commands Reference Guide, 80000ST10025a

• Telit EVK2 User Guide, 1vv0300704

Page 9

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

1.7. Document History

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DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

Page 10

2. Overview

In this document all the basic functions of a mobile phone are taken into account; for each one of them a proper hardware solution is suggested and eventually the wrong solutions and common errors to be avoided are evidenced. Obviously this document cannot embrace the whole hardware solutions and products that may be designed. The wrong solutions to be avoided shall be considered as mandatory, while the suggested hardware configurations shall not be considered mandatory, instead the information given shall be used as a guide and a starting point for properly developing your product with the Telit GE864-QUAD V2 / GE864-DUAL V2 module. For further hardware details that may not be explained in this document refer to the Telit GE864-QUAD V2 / GE864-DUAL V2 Product Description document where all the hardware information is reported.

NOTICE

NOTICE::::

NOTICENOTICE

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

(EN) The integration of the GSM/GPRS GE864-QUAD V2 / GE864-DUAL V2 cellular module within user application shall be done according to the design rules described in this manual.

The information presented in this document is believed to be accurate and reliable. However, no responsibility is assumed by Telit Communications S.p.A. for its use, or any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Telit Communications S.p.A. other than for circuitry embodied in Telit products. This document is subject to change without notice.

Page 11

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

3. GE864-QUAD V2 / GE864-DUAL Mechanical

Dimensions

The Telit GE864-QUAD V2 / GE864-DUAL V2 module overall dimensions are:

• Length: 30 mm

• Width: 30 mm

• Thickness: 2,9 mm

• Weight: 4.2g

Page 12

Pull up 47K

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

1vv0300875 Rev.1 – 2010-03-29

4. GE864-QUAD V2 / GE864-DUAL V2 Module Connections

4.1. PIN-OUT

The GE864-QUAD V2 / GE864-DUAL V2 uses 11x11 array BGA technology connection

Internal

Ball

Ball Signal

Signal I/O

BallBall

SignalSignal

Audio

AudioAudio

F9 AXE I Handsfree switching 100K CMOS 2.8V

F9F9 G8

G8 MIC_HF+ AI Handsfree mic. input; phase +, nom. level 3mVrms Audio

G8G8

G9 MIC_MT- AI Handset mic.signal input; phase-, nom. level 50mVrms Audio

G9G9 G10

G10 EAR_MT+ AO Handset earphone signal output, phase + Audio

G10G10

J8 MIC_MT+ AI Handset mic.signal input; phase+, nom. level 50mVrms Audio

J8J8

J9 MIC_HF- AI Handsfree mic.input; phase -, nom. level 3mVrms Audio

J9J9

J10

J10 EAR_HF- AO Handsfree ear output, phase - Audio

J10J10

H9 EAR_MT- AO Handset earphone signal output, phase - Audio

H9H9 H10

H10 EAR_HF+ AO Handsfree ear output, phase + Audio

H10H10

SIM card interface

SIM card interfaceSIM card interface

C10

C10 SIMCLK O External SIM signal – Clock 1,8 / 3V

C10C10

C11

C11 SIMIN I External SIM signal - Presence (active low)

C11C11

D4 SIMVCC - External SIM signal – Power supply for the SIM 1,8 / 3V

D4D4

D10

D10 SIMIO I/O External SIM signal - Data I/O

D10D10

E9 SIMRST O External SIM signal – Reset 1,8 / 3V

E9E9

Trace

TraceTrace

D11

D11 TX_TRACE O TX Data for debug monitor CMOS 2.8V

D11D11 F10

F10 RX_TRACE I RX Data for debug monitor CMOS 2.8V

F10F10

I/O Function

Function

I/OI/O

FunctionFunction

Service pin shall be used to upgrade the module from ASC1 (RX_TRACE, TX_TRACE). The pin

H4 SERVICE I

H4H4

shall be tied low to enable the feature only in case of a SW Update activity. It is required, for debug purpose, to be connected to a test pad on the final application.

Prog. / Data + HW Flow Control

Prog. / Data + HW Flow ControlProg. / Data + HW Flow Control

B6 C125/RING O Output for Ring indicator signal (RI) to DTE CMOS 2.8V

B6B6

B7 C108/DTR I Input for Data terminal ready signal (DTR) from DTE CMOS 2.8V

B7B7

D9 C109/DCD O Output for Data carrier detect signal (DCD) to DTE CMOS 2.8V

D9D9

E7 C103/TXD I Serial data input (TXD) from DTE CMOS 2.8V

E7E7

E11

E11 C107/DSR O Output for Data set ready signal (DSR) to DTE CMOS 2.8V

E11E11

F7 C105/RTS I Input for Request to send signal (RTS) from DTE CMOS 2.8V

F7F7

F6 C106/CTS O Output for Clear to send signal (CTS) to DTE CMOS 2.8V

F6F6

H8 C104/RXD O Serial data output to DTE CMOS 2.8V

H8H8

DAC and ADC

C and ADC

DADA

C and ADCC and ADC

C7 DAC_OUT AO Digital/Analog converter output D/A

C7C7

J11

J11 ADC_IN1 AI Analog/Digital converter input A/D

J11J11 H11

H11 ADC_IN2 AI Analog/Digital converter input A/D

H11H11

Internal Internal PULL UP

PULL UP

PULL UPPULL UP

Pull up

4.7K

CMOS 2.8V

Type

TypeType

1,8 / 3V

Page 13

GE864

GE864----QUAD V2 / GE864

GE864GE864

Ball

Ball Signal

Signal I/O

BallBall

SignalSignal

Miscellaneous Functions

Miscellaneous FunctionsMiscellaneous Functions

A2 RESET* I Reset input

A2A2

D8 STAT_LED O Status indicator led CMOS 1.8V

D8D8

E2 VRTC AO VRTC Power

E2E2

J5 ON_OFF* I

J5J5

L8 PWRMON I/O PWRMON CMOS 2.8V

L8L8 L4

L4 GSM Antenna O Antenna output – 50 ohm RF

L4L4

Telit GPIO

Telit GPIO / DVI

Telit GPIOTelit GPIO

C1 GPIO_01 I/O GPIO_01 CMOS 2.8V

C1C1

E6 GPIO_02 / JDR I/O GPIO_02 / JDR CMOS 2.8V

E6E6 C2

C2 GPIO_03 I/O GPIO_03 CMOS 2.8V

C2C2

B3 GPIO_04 / TX_DISABLE I/O GPIO_04 / TX_DISABLE CMOS 2.8V

B3B3

K8 GPIO_05 / RFTXMON I/O

K8K8

B5 GPIO_06 / ALARM I/O Telit GPIO06 Configurable GPIO / ALARM CMOS 2.8V

B5B5

L9 GPIO_07 / BUZZER I/O Telit GPIO07 Configurable GPIO / Buzzer CMOS 2.8V

L9L9

K11

K11 GPIO_08 I/O GPIO_08 CMOS 2.8V

K11K11 C9

C9 GPIO_09 I/O GPIO_09 CMOS 2.8V

C9C9

H3 GPIO_10 / DVI_TX I/O GPIO_10 / DVI_TX CMOS 2.8V

H3H3

K7 DVI_RX I/O DVI_RX CMOS 2.8V

K7K7

D7 DVI_CLK I/O DVI_CLK CMOS 2.8V

D7D7

H5 DVI_WA0 I/O DVI_WA0 CMOS 2.8V

H5H5

Power Supply

Power SupplyPower Supply

J1 VBATT - Main power supply Power

J1J1

K1 VBATT - Main power supply Power

K1K1

J2 VBATT - Main power supply Power

J2J2

K2 VBATT - Main power supply Power

K2K2

A1 GND - Ground Power

A1A1

A11

A11 GND - Ground Power

A11A11

D6 GND - Ground Power

D6D6

F1 GND - Ground Power

F1F1

F11

F11 GND - Ground Power

F11F11

HHHH1111 GND - Ground Power

H2 GND - Ground Power

H2H2

J3 GND - Ground Power

J3J3

K3 GND - Ground Power

K3K3

K4 GND - Ground Power

K4K4

K5 GND - Ground Power

K5K5

K6 GND - Ground Power

K6K6

L1 GND - Ground Power

L1L1

L2 GND - Ground Power

L2L2

L3 GND - Ground Power

L3L3

/ DVI

/ DVI / DVI

I/O Function

Function

I/OI/O

FunctionFunction

Input command for switching power ON or OFF (toggle command). The pulse to be sent to the GE864-QUAD V2 must be equal or greater than 1 second.

Telit GPIO05 Configurable GPIO / Transmitter ON monitor

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 Hardware User Guide

DUAL V2 Hardware User GuideDUAL V2 Hardware User Guide

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Internal

Internal Internal PULL UP

PULL UP

PULL UPPULL UP

Pull up 47K Pull up to VBATT

CMOS 2.8V

Type

TypeType

Page 14

GE864

GE864----QUAD V2 / GE864

GE864GE864

Ball

Ball Signal

Signal I/O

BallBall

SignalSignal

L6 GND - Ground Power

L6L6

L11

L11 GND - Ground Power

L11L11

RESERVED

RESERVEDRESERVED

A3 - - Reserved

A3A3 A4

A4 - - Reserved

A4A4

A5 - - Reserved

A5A5 A6

A6 - - Reserved

A6A6

A7 - - Reserved

A7A7

A8 - - Reserved

A8A8 A9

A9 - - Reserved

A9A9

A10

A10 - - Reserved

A10A10 B1

B1 - - Reserved

B1B1

B2 - - Reserved

B2B2

B4 - - Reserved

B4B4

B8 - - Reserved

B8B8

B9 - - Reserved

B9B9

B10

B10 - - Reserved

B10B10

B11

B11 - - Reserved

B11B11 C3

C3 - - Reserved

C3C3

C4 - - Reserved

C4C4

C5 - - Reserved

C5C5

C6 - - Reserved

C6C6

C8 - - Reserved

C8C8

D1 - - Reserved

D1D1

D2 - - Reserved

D2D2

D3 - - Reserved

D3D3

D5 - - Reserved

D5D5

E1 - - Reserved

E1E1

E3 - - Reserved

E3E3

E4 - - Reserved

E4E4

E5 - - Reserved

E5E5 E8

E8 - - Reserved

E8E8

E10

E10 - - Reserved

E10E10

F2 - - Reserved

F2F2

F3 - - Reserved

F3F3

F4 - - Reserved

F4F4 F5

F5 - - Reserved

F5F5

F8 - - Reserved

F8F8 G1

G1 - - Reserved

G1G1

G2 - -

G2G2 G3

G3 - - Reserved

G3G3

G4 - - Reserved

G4G4

G5 - - Reserved

G5G5 G6

G6 - - Reserved

G6G6

I/O Function

Function

I/OI/O

FunctionFunction

Reserved

QUAD V2 / GE864----DUAL V2 Hardware User Guide

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Internal

Internal Internal PULL UP

PULL UP

PULL UPPULL UP

Type

TypeType

Page 15

GE864

GE864----QUAD V2 / GE864

GE864GE864

Ball

Ball Signal

Signal I/O

BallBall

SignalSignal

G7 - - Reserved

G7G7

G11

G11 - - Reserved

G11G11

H6 - - Reserved

H6H6

H7 - - Reserved

H7H7

J4 - - Reserved

J4J4

J6 - -

J6J6 J7

J7 - - Reserved

J7J7 K9

K9 - - Reserved

K9K9 K10

K10 - - Reserved

K10K10

L5 - - Reserved

L5L5 L7

L7 - - Reserved

L7L7

L10

L10 - - Reserved

L10L10

I/O Function

Function

I/OI/O

FunctionFunction

Reserved

NOTE:

NOTE:NOTE:

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Internal

Internal Internal PULL UP

PULL UP

PULL UPPULL UP

Type

TypeType

The GE864-QUAD V2 / GE864-DUAL V2 Modules has only one DVI ports on the system interface.

NOTE:

NOTE:NOTE:

Reserved pins must not be connected.

NOTE:

NOTE:NOTE:

RTS must be connected to the GND (on the module side) if flow control is not used.

Page 16

GE864

GE864----QUAD V2 / GE864

GE864GE864

NOTE

NOTE::::

NOTENOTE

If not used, almost all pins must be left disconnected. The only exceptions are the following pins:

Ball

Ball Signal

BallBall

JJJJ1111, J

, J2222, K1, K2

, K1, K2 VBATT Main power supply

, J, J

, K1, K2, K1, K2

A1, A11, D6, F1, F11, H1,

A1, A11, D6, F1, F11, H1, A1, A11, D6, F1, F11, H1, H2, J3, K3, K4, K5

H2, J3, K3, K4, K5, K6, L1,

H2, J3, K3, K4, K5H2, J3, K3, K4, K5 L2, L3, L6, L11

L2, L3, L6, L11

L2, L3, L6, L11L2, L3, L6, L11 E7

E7 C103/TXD Serial data input (TXD) from DTE

E7E7

H8 C104/RXD Serial data output to DTE

H8H8

F7 C105/RTS Input for Request to send signal (RTS) from DTE

F7F7

J5 ON/OFF* Input command for switching power ON or OFF (toggle command).

J5J5

A2 RESET* Reset input

A2A2

F10

F10 RX_TRACE RX Data for debug monitor

F10F10

D11

D11 TX_TRACE TX Data for debug monitor

D11D11

H4 SERVICE SERVICE connection

H4H4

, K6, L1,

, K6, L1, , K6, L1,

Signal Function

SignalSignal

GND Ground

Function

FunctionFunction

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Page 17

GE864

GE864----QUAD V2 / GE864

GE864GE864

4.1.1.

4.1.1. BGA Balls Layout

4.1.1.4.1.1.

AAAA BBBB CCCC DDDD EEEE FFFF GGGG HHHH JJJJ KKKK LLLL

GND - GPIO_01 - - GND - GND VBATT VBATT GND

1111

RESET* - GPIO_03 - VRTC - - GND VBATT VBATT GND

2222

BGA Balls Layout

BGA Balls LayoutBGA Balls Layout

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TOP VIEW

TOP VIEWTOP VIEW

GPIO_04 /

TX_DISABL

3333

4444

5555

6666

7777

8888

9999

-- - - SIMVCC - - - SERVICE - GND

- C108 / DTR DAC_OUT DVI_CLK C103 / TXD C105 / RTS

- - - STAD_ LED

- - GPIO_09 C109 / DCD SIMRST AXE MIC_MT- EAR_MT- MIC_HF- -

GPIO_06 /

ALARM

C125/RING

- - - _ -

- - - - -

- GND

GPIO_02 /

C106 / CTS

JDR

- - MIC_HF+ C104 / RXD MIC_MT+

GPIO_10 /

DVI_TX

DVI_WA0

- - - GND GND

- - - DVI_RX -

GND GND GND

GSM

Antenna

ON_OFF* GND -

GPIO_05 / RFTXMON

PWRMON

GPIO_07 /

BUZZER

1010

1111

- - SIMCLK SIMIO

GND - SIMIN

TX_TRACE

- RX_TRACE

C107 / DSR GND - ADC_IN2 ADC_IN1 GPIO_08 GND

EAR_MT+ EAR_HF+ EAR_HF- - -

Page 18

GE864

GE864----QUAD V2 / GE864

GE864GE864

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AUDIO Signals balls

SIM CARD interface balls

TRACE Signals balls

Prog. / data + Hw Flow Control signals balls

ADC signals balls

MISCELLANEOUS functions signals balls

TELIT GPIO balls

POWER SUPPLY VBATT balls

POWER SUPPLY GND balls

RESERVED

Page 19

GE864

GE864----QUAD V2 / GE864

GE864GE864

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5. Hardware Commands

5.1. Turning ON the GE864-QUAD V2 / GE864-DUAL V2

To turn the GE864-QUAD V2 / GE864-DUAL V2 on, the pad ON# must be tied low for at least 1000ms and then released. A pulse duration less than 1000ms should also start the power on procedure, but this is not guaranteed.

The maximum current that can be drained from the ON# pad is 0,1 mA.

A simple circuit to do it is:

TIP:

TIP:TIP:

To check if the device has powered on, the hardware line PWRMON must be monitored. After 1000ms the line raised up the device could be considered powered on.

NOTE:

NOTE:NOTE:

Do not use any pull up resistor on the ON# line, it is internally pulled up. Using pull up resistor may bring to latch up problems on the GE864-QUAD V2 / GE864-DUAL V2 power regulator and improper power on/off of the module. The line ON# must be connected only in open collector configuration.

In this document all the lines that are inverted, hence have active low signals are labeled with a name that ends with a "#" or with a bar over the name.

NOTE

NOTE: When the power supply voltage is lower than 3.4V, to turn ON the module, the

NOTENOTE pad ON# must be tied low for at least 3 seconds.

Page 20

GE864

GE864----QUAD V2 / GE864

GE864GE864

For example:

1- Let us assume you need to drive the ON# pad with a totem pole output of a +3/5 V

microcontroller (uP_OUT1):

2- Let us assume you need to drive the ON# pad directly with an ON/OFF button:

A flow chart with proper turn on procedure is detailed below:

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Page 21

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

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5.2. Turning OFF the GE864-QUAD V2 / GE864-DUAL V2

Turning off of the device can be done in three ways:

• by software command (see GE864-QUAD V2 / GE864-DUAL V2 Software

User Guide)

• by tying low pin ON#

Either ways, the device issues a detach request to network informing that the device will not be reachable any more. To turn OFF the GE864-QUAD V2 / GE864-DUAL via pin ON#, this must be tied low for at least 1000ms and then released.The same circuitry and timing for the power on shall be used.The device shuts down after the release of the ON# pin.

The following flow chart shows the proper turnoff procedure:

TIP:

TIP:TIP:

To check if the device has powered off, the hardware line PWRMON must be monitored. When PWRMON goes low, then the device has powered off.

Page 22

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

5.2.1. Hardware Unconditional Restart

WARNING:

The hardware unconditional Restart must not be used during normal operation of the device since it does not detach the device from the network. It shall be kept as an emergency exit procedure to be done in the rare case that the device gets stacked waiting for some network or SIM responses.

To unconditionally Restart the GE864-QUAD V2 / GE864-DUAL V2, the pad RESET# must be tied low for at least 200 ms and then released.

The maximum current that can be drained from the RESET# pad is 0,15 mA.

A simple circuit to do it is:

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NOTE:

NOTE:NOTE:

Do not use any pull up resistor on the RESET* line nor any totem pole digital output. Using pull up resistor may cause latch up problems on the GE864-QUAD V2 / GE864DUAL V2 power regulator and improper functioning of the module. The line RESET* must be connected only in open collector configuration.

TIP:

TIP:TIP:

The unconditional hardware reboot must always be implemented on the boards and the software must use it as an emergency exit procedure.

Page 23

GE864

GE864----QUAD V2 / GE864

GE864GE864

In the following flow chart is detailed the proper restart procedure:

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For example:

1- Let us assume you need to drive the RESET# pad with a totem pole output of a

+3/5 V microcontroller (uP_OUT2):

Page 24

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

6. Power Supply

The power supply circuitry and board layout are a very important part in the full product design and they strongly reflect on the product overall performances, hence read carefully the following requirements and guidelines for a proper design.

6.1. Power Supply Requirements

Condition

Condition Value

ConditionCondition

Nominal Supply Voltage 3.80 V Normal operating Voltage Range 3.40 V - 4.20 V Extended operating Voltage Range 3.22 V – 4.50 V

Value

ValueValue

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The GE864-QUAD V2 / GE864-DUAL V2 power consumptions are:

GE864

GE864----QUAD V2 / GE864

GE864GE864

Mode

Mode Average (mA)

ModeMode

SWITCHED OFF

SWITCHED OFFSWITCHED OFF

Switched Off <62 uA

AT+CFUN=1 19.0 Normal mode: full functionality of the module AT+CFUN=4 18.0 Disabled TX and RX; module is not registered on the network

AT+CFUN=0 or =5

CSD TX and RX mode

CSD TX and RX modeCSD TX and RX mode GSM900 CSD PL5 300 DCS1800 CSD PL0 200

GPRS (class 10) 1TX

GPRS (class 10) 1TXGPRS (class 10) 1TX GSM900 PL5 260 DCS1800 PL0 170

GPRS

GPRS (class 10) 2TX

(class 10) 2TX

GPRSGPRS

(class 10) 2TX (class 10) 2TX GSM900 PL5 470 DCS1800 PL0 300

Average (mA) Mode description

Average (mA)Average (mA)

3.9 Paging Multiframe 2

2.9 Paging Multiframe 4

2.1 Paging Multiframe 6

1.9 Paging Multiframe 8

1.6 Paging Multiframe 9

QUAD V2 / GE864----DUAL V2

QUAD V2 / GE864QUAD V2 / GE864

Module supplied but Switched Off

IDLE mode

IDLE modeIDLE mode

GSM VOICE CALL

GPRS Sending data mode

DUAL V2

DUAL V2DUAL V2

Mode description

Mode descriptionMode description

Page 25

GE864

GE864----QUAD V2 / GE864

GE864GE864

The GSM system is made in a way that the RF transmission is not continuous but it is packed into bursts at a base frequency of about 216 Hz. The relative current peaks can be as high as about 2A. Therefore the power supply has to be designed in order to withstand with these current peaks without big voltage drops; this means that both the electrical design and the board layout must be designed for this current flow.

If the layout of the PCB is not well designed, then a strong noise floor is generated on the ground and the supply; this will reflect on all the audio paths producing an audible and annoying noise at 216 Hz; if the voltage drop during the peak current absorption is too much, then the device may even shutdown as a consequence of the supply voltage drop.

TIP

TIP::::

TIPTIP

The power supply must be designed so that it is capable of a peak current output of at least 2 A.

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TIP

TIP: the supply voltage is directly measured between VBATT and GND balls. It must

TIPTIP stay within the Wide Supply Voltage tolerant range including any drop voltage and overshoot voltage (during the slot tx, for example).

NOTE

NOTE: The Operating Voltage Range MUST never be exceeded also in power off

NOTENOTE condition; care must be taken in order to fulfill min/max voltage requirement

NOTE

NOTE: When the power supply voltage is lower than 3.4V, to turn ON the module, the

NOTENOTE pad ON# must be tied low for at least 3 seconds.

6.2. General Design Rules

The principal guidelines for the Power Supply Design embrace three different design steps:

• the electrical design

• the thermal design

• the PCB layout.

6.2.1. Electrical Design Guidelines

The electrical design of the power supply depends strongly from the power source where this power is drained. We will distinguish them into three categories:

• +5V input (typically PC internal regulator output)

• +12V input (typically automotive)

• Battery

Page 26

6.2.1.1.

6.2.1.1. +

6.2.1.1.6.2.1.1.

GE864

GE864----QUAD V2 / GE864

GE864GE864

+5V input Source Power Supply Design Guidelines

5V input Source Power Supply Design Guidelines

5V input Source Power Supply Design Guidelines5V input Source Power Supply Design Guidelines

QUAD V2 / GE864----DUAL V2 Hardware User Guide

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• The desired output for the power supply is 3.8V, hence there is no big

difference between the input source and the desired output. A linear regulator can be used. A switching power supply will not be suited because of the low drop out requirements.

• When using a linear regulator, a proper heat sink shall be provided in

order to dissipate the power generated.

• A Bypass low ESR capacitor of adequate capacity must be provided in

order to cut the current absorption peaks close to the GE864-QUAD V2 / GE864-DUAL V2, a 100µF tantalum capacitor is usually suited.

• Make sure the low ESR capacitor on the power supply output (usually a

tantalum one) is rated at least 10V.

• A protection diode can be inserted close to the power input, in order to

save the GE864-QUAD V2 / GE864-DUAL V2 from power polarity inversion.

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An example of linear regulator with 5V input is:

Page 27

6.2.1.2.

6.2.1.2. +

6.2.1.2.6.2.1.2.

GE864

GE864----QUAD V2 / GE864

GE864GE864

+12V input Source Power Supply Design Guidelines

12V input Source Power Supply Design Guidelines

12V input Source Power Supply Design Guidelines12V input Source Power Supply Design Guidelines

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

• The desired output for the power supply is 3.8V, hence, due to the big

difference between the input source and the desired output, a linear regulator is not suited and shall not be used. A switching power supply will be preferable because of its better efficiency especially with the 2A peak current load represented by the GE864-QUAD V2 / GE864-DUAL V2.

• When using a switching regulator, a 500kHz (or more) switching

frequency regulator is preferable, because of its smaller inductor size and its faster transient response. This allows the regulator to respond quickly to the current peaks absorption.

• In any case the frequency and switching design selection is related to the

application to be developed, due to the fact that the switching frequency could also generate EMC interferences.

• As far as car PB battery, the input voltage can rise up to 15.8V. This must

be kept in mind when choosing components: all components in the power supply must withstand this voltage.

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• A Bypass low ESR capacitor of adequate capacity must be provided, in

order to cut the current absorption peaks. A 100µF tantalum capacitor is typically used.

• Make sure the low ESR capacitor on the power supply output (usually a

tantalum one) is rated at least 10V.

• As far as car applications, a spike protection diode must be inserted close

to the power input, in order to clean the supply from spikes.

• A protection diode can be inserted close to the power input, in order to

save the GE864-QUAD V2 / GE864-DUAL V2 from power polarity inversion. This can be the same diode used for spike protection.

Page 28

GE864

GE864----QUAD V2 / GE864

GE864GE864

An example of switching regulator with 12V input is in the schematic below (split in 2 parts):

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Page 29

GE864

GE864----QUAD V2 / GE864

GE864GE864

6.2.1.3.

6.2.1.3. Battery Source Power Supply Design Guidelines

6.2.1.3.6.2.1.3.

Battery Source Power Supply Design Guidelines

Battery Source Power Supply Design GuidelinesBattery Source Power Supply Design Guidelines

The desired nominal output for the power supply is 3.8V and the maximum voltage allowed is 4.5V. A single 3.7V Li-Ion cell battery type is suited for supplying the power to the Telit GE864-QUAD V2 / GE864-DUAL V2 module.

CAUTION:

CAUTION:CAUTION:

The three cells Ni/Cd or Ni/MH 3,6 V Nom. Battery types or 4V PB types MUST NOT BE USED DIRECTLY since their maximum voltage can rise over the absolute maximum voltage for the GE864-QUAD V2 / GE864-DUAL V2 and damage it.

CAUTION:

CAUTION:CAUTION:

DO NOT USE any Ni-Cd, Ni-MH, and Pb battery types directly connected with GE864QUAD V2 / GE864-DUAL V2. Their use can lead to overvoltage on the GE864-QUAD V2 / GE864-DUAL V2 and damage it. USE ONLY Li-Ion battery types.

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A Bypass low ESR capacitor of adequate capacity must be provided, in order to cut the current absorption peaks. A 100µF tantalum capacitor is typically used.

Make sure the low ESR capacitor (usually a tantalum one) is rated at least 10V.

A protection diode can be inserted close to the power input, in order to save the GE864-QUAD V2 / GE864-DUAL V2 from power polarity inversion. Otherwise the battery connector must be done in a way to avoid polarity inversions when connecting the battery.

The battery capacity must be at least 500mAh in order to withstand the current peaks of 2A; the suggested capacity is from 500mAh to 1000mAh.

6.2.2. Thermal Design Guidelines

The thermal design for the power supply heat sink must be done with the following specifications:

• Average current consumption during transmission @PWR level max:

500mA

• Average current consumption during transmission @ PWR level min:

100mA

• Average current during Power Saving (CFUN=5): from 1.6 to 3.9mA

• Average current during idle (Power Saving disabled): 19mA

Page 30

GE864

GE864----QUAD V2 / GE864

GE864GE864

NOTE

NOTE::::

NOTENOTE

The average consumption during transmissions depends on the power level at which the device is requested to transmit by the network. The average current consumption hence varies significantly.

Considering the very low current during idle, especially if Power Saving function is enabled, it is possible to consider from the thermal point of view that the device absorbs current significantly only during calls.

If we assume that the device stays into transmission for short periods of time (let us say few minutes) and then remains for a quite long time in idle (let us say one hour), then the power supply has always the time to cool down between the calls, and the heat sink could be smaller than the calculated one for 500mA maximum RMS current, or even could be the simple chip package (no heat sink).

Moreover, in the average network conditions, the device is requested to transmit at a lower power level than the maximum, hence the current consumption will be less than 500mA, usually around 150mA.

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For these reasons the thermal design is rarely a concern and the simple ground plane where the power supply chip is placed grants a good thermal condition to avoid overheating as well.

As far as the heat generated by the GE864-QUAD V2 / GE864-DUAL V2, you can consider it to be during transmissions of 1W max during CSD/VOICE calls and 2W max during class10 GPRS upload.

This generated heat will be mostly conducted to the ground plane under the GE864QUAD V2 / GE864-DUAL V2; you must ensure that your application can dissipate it.

6.2.3. Power Supply PCB Layout Guidelines

As seen on the electrical design guidelines the power supply shall have a low ESR capacitor on the output to cut the current peaks and a protection diode on the input to protect the supply from spikes and polarity inversion. The placement of these components is crucial for the correct working of the circuitry. A misplaced component can be useless or can even decrease the power supply performances.

• The Bypass low ESR capacitor must be placed close to the Telit GE864-

QUAD V2 / GE864-DUAL V2 power input pads or in the case the power supply is a switching type it can be placed close to the inductor to cut the ripple provided the PCB trace from the capacitor to the GE864-QUAD V2 / GE864-DUAL V2 is wide enough to ensure a dropless connection even during the 2A current peaks.

• The protection diode must be placed close to the input connector where

the power source is drained.

Page 31

GE864

GE864----QUAD V2 / GE864

GE864GE864

• The PCB traces from the input connector to the power regulator IC must

be wide enough to ensure no voltage drops occur when the 2A current peaks are absorbed. Note that this is not made in order to save power loss but especially to avoid the voltage drops on the power line at the current peaks frequency of 216 Hz that will reflect on all the components connected to that supply, introducing the noise floor at the burst base frequency. For this reason while a voltage drop of 300-400 mV may be acceptable from the power loss point of view, the same voltage drop may not be acceptable from the noise point of view. If your application does not have audio interface but only uses the data feature of the Telit GE864QUAD V2 / GE864-DUAL V2, then this noise is not so disturbing and power supply layout design can be more forgiving.

• The PCB traces to the GE864-QUAD V2 / GE864-DUAL V2 and the Bypass

capacitor must be wide enough to ensure no significant voltage drops occur when the 2A current peaks are absorbed. This is for the same reason as previous point. Try to keep this trace as short as possible.

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• The PCB traces connecting the Switching output to the inductor and the

switching diode must be kept as short as possible by placing the inductor and the diode very close to the power switching IC (only for switching power supply). This is done in order to reduce the radiated field (noise) at the switching frequency (100-500 kHz usually).

• The use of a good common ground plane is suggested.

• The placement of the power supply on the board must be done in such a

way to guarantee that the high current return paths in the ground plane are not overlapped to any noise sensitive circuitry as the microphone amplifier/buffer or earphone amplifier.

• The power supply input cables must be kept separate from noise sensitive

lines such as microphone/earphone cables.

6.2.4. Parameters for ATEX Applications

In order to integrate the Telit’s GE864-QUAD V2 / GE864-DUAL V2 module into an

ATEX application, the appropriate reference standard IEC EN xx and integrations shall be followed.

Below are listed parameters and useful information to integrate the module in your application:

• Total capacity: 27.45 uF

• Total inductance: 55.20 nH

• No voltage upper than supply voltage is present in the module.

• No step-up converters are present in the module.

Page 32

GE864

GE864----QUAD V2 / GE864

GE864GE864

• In abnormal conditions, the maximum RF output power may be up to 34

dBm.

For this particular application, we recommend the customer to involve TTSC (Telit Technical Support Center) in the design phase of the application.

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Page 33

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

7. Antenna

The antenna connection and board layout design are the most important part in the full product design and they strongly reflect on the product overall performances, hence read carefully and follow the requirements and the guidelines for a proper design.

7.1. GSM Antenna Requirements

As suggested on the Product Description the antenna for a Telit GE864-QUAD V2 / GE864-DUAL V2 device shall fulfill the following requirements:

ANTENNA REQUIREMENTS

ANTENNA REQUIREMENTSANTENNA REQUIREMENTS

Frequency range

Frequency range Depending by frequency band(s) provided by the network operator,

Frequency rangeFrequency range

Bandwidth

BandwidthBandwidth for GE

for GE864

864----QUAD V2

864864

64----DUAL V2

6464

QUAD V2

QUAD V2QUAD V2

DUAL V2

DUAL V2DUAL V2

for GEfor GE Bandwidth

Bandwidth

Bandwidth Bandwidth for GE

for GE888864

for GEfor GE Gain

Gain Gain < 1,4dBi in GSM 850 & 900

GainGain

Impedance

Impedance 50 •

ImpedanceImpedance Input power

Input power > 2 W peak power

Input powerInput power VSWR absolute max

VSWR absolute max <= 10:1

VSWR absolute maxVSWR absolute max VSWR recommended

VSWR recommended <= 2:1

VSWR recommendedVSWR recommended

the customer shall use the most suitable antenna for that/those band(s) 70 MHz in GSM850, 80 MHz in GSM900, 170 MHz in DCS and 140 MHz PCS band 80 MHz in GSM900 and 170 MHz in DCS

and < 3,0dBi DCS & PCS

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Furthermore if the device is developed for the US market and/or Canada market, it shall comply to the FCC and/or IC approval requirements:

This device is to be used only for mobile and fixed application. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-Users must be provided with transmitter operation conditions for satisfying RF exposure compliance. OEM integrators must ensure that the end user has no manual instructions to remove or install the GE864QUAD V2 / GE864-DUAL V2 module. Antennas used for this OEM module must not exceed 3dBi gain for mobile and fixed operating configurations.

Page 34

GE864

GE864----QUAD V2 / GE864

GE864GE864

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7.2. GSM Antenna – Installation Guidelines

• Install the antenna in a place covered by the GSM signal.

• The Antenna must be installed to provide a separation distance of at least

20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter;

• Antenna shall not be installed inside metal cases

• Antenna shall be installed also according Antenna manufacturer

instructions.

Page 35

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

QUAD V2 / GE864QUAD V2 / GE864

8. Logic Level Specifications

Where not specifically stated, all the interface circuits work at 2.8V CMOS logic

levels. The following table shows the logic level specifications used in the Telit

GE864-QUAD V2 / GE864-DUAL V2 interface circuits:

Absolute Maximum R

Absolute Maximum Ratings

Absolute Maximum RAbsolute Maximum R

Parameter

Parameter Min

ParameterParameter Input level on any

digital pin when on Input voltage on analog pins when on

atings –

atings atings

Min Max

MinMin

-0.3V +3.1V

-0.3V +3.0 V

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Not Functional

Not FunctionalNot Functional

Max

MaxMax

Operating Range

Operating Range – Interface L

Operating Range Operating Range

Level

Level Min

LevelLevel Input high level 2.1V 3.1V Input low level 0V 0.5V Output high level 2.2V 3.0V Output low level 0V 0.35V

For 1,8V signals:

Operating Range

Operating Range – Interface Levels (1.8V CMOS)

Operating Range Operating Range

Level

Level Min

LevelLevel Input high level 1.6V 2.2V Input low level 0V 0.4V Output high level 1,65V 2.2V Output low level 0V 0.35V

Interface Levels (2.8V CMOS)

Interface L Interface L

Min Max

MinMin

Interface Levels (1.8V CMOS)

Interface Levels (1.8V CMOS) Interface Levels (1.8V CMOS)

Min Max

MinMin

CCCCurrent characteristics

urrent characteristics

urrent characteristicsurrent characteristics

Level

Level Typical

LevelLevel Output Current 1mA Input Current 1uA

evels (2.8V CMOS)

evels (2.8V CMOS)evels (2.8V CMOS)

Max

MaxMax

Max

MaxMax

Typical

TypicalTypical

Page 36

8.1. Reset Signal

Signal

Signal Function

SignalSignal RESET Reset I A2

RESET is used to reset the GE864-QUAD V2 / GE864-DUAL V2 modules. Whenever this signal is pulled low, the GE864-QUAD V2 / GE864-DUAL V2 is reset. When the device is reset it stops any operation. After the release of the reset GE864-QUAD V2 / GE864-DUAL V2 is unconditionally shut down, without doing any detach operation from the network where it is registered. This behavior is not a proper shut down because any GSM device is requested to issue a detach request on turn off. For this reason the Reset signal must not be used to normally shutting down the device, but only as an emergency exit in the rare case the device remains stuck waiting for some network response.

Function I/O

FunctionFunction

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2 Hardware User Guide

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I/O Ball

I/OI/O

Ball Number

Number

BallBall

Number Number

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The RESET is internally controlled on start-up to achieve always a proper power-on reset sequence, so there is no need to control this pin on start-up. It may only be used to reset a device already on that is not responding to any command.

NOTE:

NOTE:NOTE:

Do not use this signal to power off the GE864-QUAD V2 / GE864-DUAL V2. Use the ON/OFF signal to perform this function or the AT#SHDN command.

Reset Signal Operating

Reset Signal Operating LLLLevels:

Reset Signal Operating Reset Signal Operating

evels:

evels:evels:

Signal

Signal Min

SignalSignal RESET Input high 2.0V* 2.2V RESET Input low 0V 0.2V

* this signal is internally pulled up so the pin can be left floating if not used.

If unused, this signal may be left unconnected. If used, then it must always be connected with an open collector transistor

connected with an open collector transistor, to permit to the internal circuitry the

connected with an open collector transistorconnected with an open collector transistor power on reset and under voltage lockout functions.

Min Max

MinMin

Max

MaxMax

must always be

must always be must always be

Page 37

GE864

GE864----QUAD V2 / GE864

GE864GE864

9. Serial Ports

The serial port on the Telit GE864-QUAD V2 / GE864-DUAL V2 is the core of the interface between the module and OEM hardware.

2 serial ports are available on the module:

• MODEM SERIAL PORT

• MODEM SERIAL PORT 2 (TRACE for debug)

9.1. MODEM SERIAL PORT

Several configurations can be designed for the serial port on the OEM hardware, but the most common are:

• RS232 PC com port

• microcontroller UART @ 2.8V – 3V (Universal Asynchronous Receive

Transmit)

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• microcontroller UART@ 5V or other voltages different from 2.8V

Depending from the type of serial port on the OEM hardware a level translator circuit may be needed to make the system work. The only configuration that does not need a level translation is the 2.8V UART.

The serial port on the GE864-QUAD V2 / GE864-DUAL V2 is a +2.8V UART with all the 7 RS232 signals. It differs from the PC-RS232 in the signal polarity (RS232 is reversed) and levels. The levels for the GE864-QUAD V2 / GE864-DUAL V2 UART are the CMOS levels:

Absolute Maximum Ratings

Absolute Maximum Ratings –Not Functional

Absolute Maximum Ratings Absolute Maximum Ratings

Parameter

Parameter Min

ParameterParameter Input level on any

digital pad when on Input voltage on analog pads when on

Min Max

MinMin

-0.3V +3.1V

-0.3V +3.0 V

Not Functional

Not FunctionalNot Functional

Max

MaxMax

Page 38

GE864

GE864----QUAD V2 / GE864

GE864GE864

Operating Range

Operating Range – Interface levels (2.8V CMOS)

Operating Range Operating Range

Level

Level Min

LevelLevel Input high level V Input low level VIL 0V 0.5V Output high level VOH 2.2V 3.0V Output low level VOL 0V 0.35V

The table below shows the signals of the GE864-QUAD V2 / GE864-DUAL V2 serial

RS232 Pin

RS232 Pin RS232 Pin Number

Number

NumberNumber

9 RI – ri_uart B6 Ring Indicator

Signa

Signallll GE864

SignaSigna

DCD – dcd_uart RXD – tx_uart TXD – rx_uart DTR – dtr_uart GND A1,F1, H1 L1,

DSR – dsr_uart RTS –rts_uart

CTS – cts_uart

GE864----

GE864GE864

QUAD V2 /

QUAD V2 / QUAD V2 /

GE864

GE864----

GE864GE864

DUAL V2

DUAL V2DUAL V2

Pad

Pad Pad

Number

NumberNumber

D9 Data Carrier Detect

H8 Transmit line *see Note

E7 Receive line *see Note

B7 Data Terminal Ready

H2, L2, J3, K3….

E11 Data Set Ready

F7 Request to Send

F6 Clear to Send

Name

Name Usage

NameName

Ground

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Interface levels (2.8V CMOS)

Interface levels (2.8V CMOS) Interface levels (2.8V CMOS)

Min Max

MinMin

2.1V 3.1V

Max

MaxMax

port:

Usage

UsageUsage

Output from the GE864-QUAD V2 / GE864-DUAL V2 that

Output transmit line of GE864-QUAD V2 / GE864-DUAL V2

Input receive of the GE864-QUAD V2 / GE864-DUAL V2

Input to the GE864-QUAD V2 / GE864-DUAL V2 that

ground

Output from the GE864-QUAD V2 / GE864-DUAL V2 that

Input to the GE864-QUAD V2 / GE864-DUAL V2 that

Output from the GE864-QUAD V2 / GE864-DUAL V2 that

indicates the carrier presence

UART

controls the DTE READY condition

indicates the module is ready

controls the Hardware flow control

indicates the incoming call condition

****NOTE:

NOTE:

NOTE:NOTE:

According to V.24, RX/TX signal names are referred to the application side, therefore on the GE864-QUAD V2 / GE864-DUAL V2 side these signal are on the opposite direction: TXD on the application side will be connected to the receive line (here named TXD/ rx_uart ) of the GE864-QUAD V2 / GE864-DUAL V2 serial port and viceversa for RX.

Page 39

TIP:

TIP:TIP:

For a minimum implementation, only the TXD and RXD lines can be connected, the other lines can be left open provided a software flow control is implemented.

9.2.

9.2. RS232 L

9.2.9.2.

RS232 Level

RS232 LRS232 L

In order to interface the Telit GE864-QUAD V2 / GE864-DUAL V2 with a PC com port or a RS232 (EIA/TIA-232) application a level translator is required. This level translator must

• invert the electrical signal in both directions

• change the level from 0/+3V to +15/-15V

Actually, the RS232 UART 16450, 16550, 16650 & 16750 chipsets accept signals with lower levels on the RS232 side (EIA/TIA-562), allowing for a lower voltage-multiplying ratio on the level translator. Note that the negative signal voltage must be less than 0V and hence some sort of level translation is always required.

GE864

GE864----QUAD V2 / GE864

GE864GE864

evel TTTTranslation

evel evel

ranslation

ranslationranslation

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The simplest way to translate the levels and invert the signal is by using a single chip level translator. There are a multitude of them, differing in the number of driver and receiver and in the levels (be sure to get a true RS232 level translator not a RS485 or other standards).

By convention the driver is the level translator from the 0/+3V UART level to the RS232 level, while the receiver is the translator from RS232 level to 0/+3V UART.

In order to translate the whole set of control lines of the UART you will need:

• 5 driver

• 3 receiver

NOTE:

NOTE:NOTE:

The digital input lines working at 2.8VCMOS have an absolute maximum input voltage of 3,1V; therefore the level translator IC shall not be powered by the +3.8V supply of the module. Instead it shall be powered from a +2.8V / +3.0V (dedicated) power supply. This is because in this way the level translator IC outputs on the module side (i.e. GE864-QUAD V2 / GE864-DUAL V2 inputs) will work at +3.8V interface levels, stressing the module inputs at its maximum input voltage. This can be acceptable for evaluation purposes, but not on production devices.

Page 40

GE864

GE864----QUAD V2 / GE864

GE864GE864

NOTE:

NOTE:NOTE:

In order to be able to do in circuit reprogramming of the GE864-QUAD V2 / GE864DUAL V2 firmware, the serial port on the Telit GE864-QUAD V2 / GE864-DUAL V2 shall be available for translation into RS232 and either it is controlling device shall be placed into tristate, disconnected or as a gateway for the serial data when module reprogramming occurs. Only RXD, TXD, GND, SERVICE and the On/off module turn on pad are required to the reprogramming of the module, the other lines are unused. All applicator shall include in their design such a way of reprogramming the GE864QUAD V2 / GE864-DUAL V2.

An example of level translation circuitry of this kind is:

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Page 41

GE864

GE864----QUAD V2 / GE864

GE864GE864

The RS232 serial port lines are usually connected to a DB9 connector with the following layout:

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9.3. 5V UART Level Translation

If the OEM application uses a microcontroller with a serial port (UART) that works at

a voltage different from 2.8 – 3V, then a circuitry has to be provided to adapt the

different levels of the two set of signals. As for the RS232 translation there are a multitude of single chip translators. For example a possible translator circuit for a 5V TRANSMITTER/RECEIVER can be:

Page 42

GE864

GE864----QUAD V2 / GE864

GE864GE864

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TIP:

TIP:TIP:

Note that the TC7SZ07AE has open drain output; therefore the resistor R2 is mandatory.

Page 43

GE864

GE864----QUAD V2 / GE864

GE864GE864

NOTE:

NOTE:NOTE:

The UART input line TXD (rx_uart) of the GE864-QUAD V2 / GE864-DUAL V2 is NOT internally pulled up with a resistor, so there may be the need to place an external 47KΩ pull-up resistor, either the DTR (dtr_uart) and RTS (rts_uart) input lines are not pulled up internally, so an external pull-up resistor of 47KΩ may be required.

Care must be taken to avoid latch-up on the GE864-QUAD V2 / GE864-DUAL V2 and the use of this output line to power electronic devices shall be avoided, especially for devices that generate spikes and noise such as switching level translators, micro controllers, failure in any of these condition can severely compromise the GE864QUAD V2 / GE864-DUAL V2 functionality.

NOTE:

NOTE:NOTE:

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In case of reprogramming of the module has to be considered the use of the RESET line to start correctly the activity.

The preferable configuration is having an external supply for the buffer level translator.

Page 44

GE864

GE864----QUAD V2 / GE864

GE864GE864

10. Audio Section Overview

The first Baseband chip was developed for the cellular phones, which needed two separated amplifiers both in RX and in TX section.

A couple of amplifiers had to be used with internal audio transducers while the other couple of amplifiers had to be used with external audio transducers.

To distinguish the schematic signals and the Software identifiers, two different definitions were introduced, with the following meaning:

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• internal audio transducers 

• external audio transducers 

Actually the acronyms have not the original importance.

In other words this distinction is not necessary, being the performances between the two blocks like the same.

Only if the customer needs higher output power to drive the speaker, he needs to adopt the Aduio2 Section ( overcome the PCB design difficulties.

For these reasons we have not changed the HS and HF acronyms, keeping them in the Software and on the schematics.

The Base Band Chip of the GE864-QUAD V2 / GE864-DUAL V2 Telit Modules maintains the same architecture.

For more information and suggestions refer to Telit document:

• Audio settings application note , 80000NT10007a

) . Otherwise the choice could be done in order to

HS/MT

HSHS

HFHF

(from

(from HHHHandsFFFFree )

HHHHandSSSSet

MMMMicroTTTTelephone

)

10.1.

10.1. Selection mode

10.1.10.1.

Selection mode

Selection mode Selection mode

Only one block can be active at a time, and the activation of the requested audio path is done via hardware ,by

Moreover the between the transmit path and the receive path, enabled at request in both modes.

Sidetone

SidetoneSidetone

AXE

line, or via software ,by

AXEAXE

functionality could be implemented by the amplifier fitted

AT#CAP

AT#CAPAT#CAP

command .

Page 45

GE864

GE864----QUAD V2 / GE864

GE864GE864

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Bias

Single ended

Balanced

Single ended

Balanced

Single ended

Balanced

Single ended

100nF

Ear MT+

Ear MT-

Mic MT+

Mic MT-

Ear HF+

Ear HF-

Mic HF+

Mic HF-

EP P1

HS Earpiece

EP N1

MICP1

HS Microphone

MICN1

LOUD1

HF Speaker

LOUD2

MICP2

HF Microphone

MICN2

Fully Differential Audio Amplifier

AUDIO 1 SECTION

Baseband Audio Front End

Fully Differential Audio Amplifier

AUDIO 2 SECTION

xgaffull.skd

GE864

GE864----QUAD V2 / GE864

GE864GE864

QUAD V2 / GE864----DUAL V2

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 Audio Front End Block Diagram

DUAL V2 DUAL V2

Audio Front End Block Diagram

Audio Front End Block DiagramAudio Front End Block Diagram

Page 46

GE864

GE864----QUAD V2 / GE864

GE864GE864

10.2.

10.2. Electrical Characteristics

10.2.10.2.

10.2.1.

10.2.1. Input Lines Characteristics

10.2.1.10.2.1.

Electrical Characteristics

Electrical CharacteristicsElectrical Characteristics

TIP:

TIP: Being the microphone circuitry the more noise sensitive, its design and layout

TIP: TIP: must be done with particular care. Both microphone paths are balanced and the OEM circuitry must be balanced designed to reduce the common mode noise typically generated on the ground plane. However the customer can use the unbalanced circuitry for its particular application.

Input Lines Characteristics

Input Lines CharacteristicsInput Lines Characteristics

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“MIC_MT” and “MIC_HF” differential microphone paths

“MIC_MT” and “MIC_HF” differential microphone paths“MIC_MT” and “MIC_HF” differential microphone paths

Line Coupling AC* Line Type Balanced Differential input voltage Gain steps 7 Gain increment 6dB per step Coupling capacitor Differential input resistance Input capacitance • 10pF

(*) WARNING :

(*) WARNING : AC means that the signals from the microphone have to be

(*) WARNING : (*) WARNING : connected to input lines of the module through capacitors which value has to be ≥ 100nF. Not respecting this constraint, the input stages will be damaged.

WARNING:

WARNING: when particular OEM application needs a

WARNING: WARNING: configuration, it is forbidden connecting the unused input directly to Ground, but only through a 100nF capacitor. Don’t forget that the useful input signal will be halved in

Single Ended Input

configuration.

≤ 1,03Vpp @

≥ 100nF

50KΩ

Mic G=0dB

Single Ended Input

Page 47

GE864

GE864----QUAD V2 / GE864

GE864GE864

10.2.2.

10.2.2. Output Lines Characteristics

10.2.2.10.2.2.

Output Lines Characteristics

Output Lines CharacteristicsOutput Lines Characteristics

TIP

TIP:

TIPTIP

We suggest driving the load differentially from both output drivers, thus the output swing will double and the need for the output coupling capacitor avoided. However if particular OEM application needs also a but the output power will be reduced four times .

The OEM circuitry shall be designed to reduce the common mode noise typically generated on the ground plane and to get the maximum power output from the device (low resistance tracks).

WARNING:

WARNING: WARNING:

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Single Ended circuitry

can be implemented,

The loads are directly connected to the amplifier outputs when in configuration, through a capacitor when in Using a Not respecting this constraint, the output stage will be damaged.

TIP :

TIP : TIP : Remember that there are slightly different electrical performances between the two internal audio amplifiers:

• the

• the “

• There is no difference if the amplifiers drive an external amplifier

(**)

(**) (**)

3,7V

Single Ended configuration

“Ear_MT

Ear_MT”

Ear_MTEar_MT

Differential

Ear_HF

Ear_HF”

Ear_HFEar_HF

0dBFS

differential

lines can directly drive a

configuration

lines can directly drive a

is the normalized overall Analog Gain for each Output channel equal to

, the unused output line must be left open .

Single Ended

16Ω load

load

1616

4444Ω load

load

load load

at –12dBFS (**)

load load

configuration.

Differential

(**) in

(**)(**)

configurations

Page 48

differential output voltage

GE864

GE864----QUAD V2 / GE864

GE864GE864

“EAR_MT

EAR_MT” Output Lines

EAR_MTEAR_MT

line coupling

0dBFS normalized gain 3,7 V output load resistance internal output resistance signal bandwidth 150 - 4000 Hz @ -3 dB maximal full scale

differential output voltage

volume increment 2 dB per step volume steps 10

“EAR_HF

EAR_HF”

EAR_HFEAR_HF

line coupling

output load resistance ≥ 8 Ω signal bandwidth 150 - 4000 Hz @ -3 dB maximal output power

@ battery voltage ≥ 3,6V volume increment 2 dB per step volume steps 10

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Output Lines

Output Lines Output Lines

AC single-ended DC differential

differential

≥ 16 Ω 4Ω (

3,7 V R

load

925mVpp / R

@ -12dBFS

Output Lines

Output LinesOutput Lines

@ -12dBFS

typical

)

(

typical

open circuit

load

)

=16Ω

AC single-ended DC differential

0.35 W

/8 Ω

rms

Page 49

GE864

GE864----QUAD V2 / GE864

GE864GE864

11. General Purpose I/O

The general-purpose I/O pads can be configured to act in three different ways:

• Input

• Output

• Alternate function (internally controlled)

Input pads can only be read and report the digital value (high or low) present on the pad at the read time; output pads can only be written or queried and set the value of the pad output; an alternate function pad is internally controlled by the GE864-QUAD V2 / GE864-DUAL V2 firmware and acts depending on the function implemented.

The following GPIO are available on the GE864-QUAD V2 / GE864-DUAL V2:

Ball

Ball Signal

Signal I/O

BallBall

SignalSignal

C1 TGPIO_01 I/O

C1C1

TGPIO_02 /

E6E6

JDR

C2 TGPIO_03 I/O

C2C2

TGPIO_04 /

B3B3

TXCNTRL

TGPIO_05 /

K8K8

RFTXMON

TGPIO_06 /

B5B5

ALARM

TGPIO_07 /

L9L9

BUZZER

K11

K11 TGPIO_08 I/O

K11K11

C9 TGPIO_09 I/O

C9C9

TGPIO_10 /

H3H3

DVI_TX

I/O Function

Function Type

I/OI/O

FunctionFunction

GPIO01 Configurable GPIO

GPIO02

I/O

Configurable GPIO

GPIO03 Configurable GPIO

GPIO04

I/O

Configurable GPIO

GPIO05

I/O

Configurable GPIO

GPIO06

I/O

Configurable GPIO

GPIO07

I/O

Configurable GPIO

GPIO08 Configurable GPIO GPIO09 Configurable GPIO

GPIO10

I/O

Configurable GPIO

Type

TypeType

CMOS 2.8V 1uA / 1mA INPUT 0 0

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During

Input / output

Input / output Input / output

current

currentcurrent

Default

DefaultDefault sssstate

tate

tatetate

ON_OFF

ON_OFF ON_OFF

state

statestate

During During Reset

Reset

ResetReset state

state

statestate

Note

NoteNote

Alternate function (JDR)

Alternate function (RF Transmission Control) Alternate function (RFTXMON) Alternate function (ALARM) Alternate function (BUZZER)

Alternate function (DVI_TX)

Page 50

Not all GPIO pads support all these three modes:

• GPIO2 supports all three modes and can be input, output, Jamming Detect

Output (Alternate function)

• GPIO4 supports all three modes and can be input, output, RF

Transmission Control (Alternate function)

• GPIO5 supports all three modes and can be input, output, RFTX monitor

output (Alternate function)

• GPIO6 supports all three modes and can be input, output, alarm output

(Alternate function)

• GPIO7 supports all three modes and can be input, output, buzzer output

(Alternate function)

11.1.

11.1. GPIO Logic

11.1.11.1.

GPIO Logic LLLLevels

GPIO Logic GPIO Logic

GE864

GE864----QUAD V2 / GE864

GE864GE864

evels

evelsevels

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Where not specifically stated, all the interface circuits work at 2.8V CMOS logic levels.

The following tables show the logic level specifications used in the GE864-QUAD V2 / GE864-DUAL V2 interface circuits:

Absolute Maximum Ratings

Absolute Maximum Ratings –Not Functional

Absolute Maximum Ratings Absolute Maximum Ratings

Parameter

Parameter Min

ParameterParameter Input level on any

digital pin when on Input voltage on analog pins when on

Operating Range

Operating Range – Interface L

Operating Range Operating Range

Level

Level Min

LevelLevel Input high level 2.1V 3.1V Input low level 0V 0.5V Output high level 2.2V 3.0V Output low level 0V 0.35V

Min Max

MinMin

-0.3V +3.1V

-0.3V +3.0 V

Interface Levels (2.8V CMOS)

Interface L Interface L

Min Max

MinMin

Not Functional

Not FunctionalNot Functional

Max

MaxMax

evels (2.8V CMOS)

evels (2.8V CMOS)evels (2.8V CMOS)

Max

MaxMax

Page 51

GE864

GE864----QUAD V2 / GE864

GE864GE864

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11.2. Using a GPIO Pad as INPUT

The GPIO pads, when used as inputs, can be connected to a digital output of another device and report its status, provided this device has interface levels compatible with the 2.8V CMOS levels of the GPIO.

If the digital output of the device to be connected with the GPIO input pad has interface levels different from the 2.8V CMOS, then it can be buffered with an open collector transistor with a 47K pull up to 2.8V, this pull up must be switched off when the module is in off condition.

11.3. Using a GPIO Pad as OUTPUT

The GPIO pads, when used as outputs, can drive 2.8V CMOS digital devices or compatible hardware. When set as outputs, the pads have a push-pull output and therefore the pull-up resistor may be omitted.

The illustration below shows the base circuit of a push-pull stage:

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VDD

GPIO7

11.4. Using the RF Transmission Control GPIO4

The GPIO4 pin, when configured as RF Transmission Control Input, permits to disable the Transmitter when the GPIO is set to Low by the application.

In the design is necessary to add a resistor 47K pull up to 2.8V, this pull up must be switched off when the module is in off condition.

Page 52

GE864

GE864----QUAD V2 / GE864

GE864GE864

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11.5. Using the RFTXMON Output GPIO5

The GPIO5 pin, when configured as RFTXMON Output, is controlled by the module and will rise when the transmitter is active and fall after the transmitter activity is completed.

For example, if a call is started, the line will be HIGH during all the conversation and it will be again LOW after hanged up.

The line rises up 300ms before first TX burst and will became again LOW from 500ms to 1sec after last TX burst.

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Page 53

GE864

GE864----QUAD V2 / GE864

GE864GE864

Using the Alarm Output GPIO6

The GPIO6 pad, when configured as Alarm Output, is controlled by the module and will rise when the alarm starts and fall after the issue of a dedicated AT command.

This output can be used to power up the module controlling micro controller or application at the alarm time, giving you the possibility to program a timely system wake-up to achieve some periodic actions and completely turn off either the application and the module during sleep periods, dramatically reducing the sleep consumption to few µA.

In battery-powered devices this feature will greatly improve the autonomy of the device.

NOTE:

NOTE:NOTE:

During RESET the line is set to HIGH logic level.

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11.6. Using the Buzzer Output GPIO7

Alternate Function

function implemented internally.

This setup places always the GPIO7 pin in function must be activated properly by AT#SRP

specification

Also in this case, the

The GPIO7 pin will be set as

HIGH

value.

The “

Alternate Function

feature

feature with some small hardware extension of your application as shown in the

featurefeature sample figure below.

• Send the command AT#GPIO=7, 1, 2<cr>:

• Wait for response OK

• Send the command AT#SRP=3

, the GPIO7 is controlled by the firmware that depends on the

OUTPUT

AT#SRP command (refer to

AT#SRPAT#SRP

dummy value

for the pin state can be both “0” or “1”.

Alternate Function

” permits your application to easily implement Buzzer

direction and the corresponding

AT commands

pin with its

dummy

logic status set to

Buzzer

Buzzer Buzzer

Page 54

GE864

GE864----QUAD V2 / GE864

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+V buzzer

4,7K

GPIO7

TR1 BCR141W

TR2

SMBT2907A

D1N4148

R2 1K

33pF

Example of Buzzer’s driving circuit

NOTE:

NOTE:NOTE:

To correctly drive a buzzer, a driver must be provided; its characteristics depend on the Buzzer and for them refer to your buzzer vendor.

11.7. Magnetic Buzzer Concepts

11.7.1. Short Description

A magnetic Buzzer is a sound-generating device with a coil located in the magnetic circuit consisting of a permanent magnet, an iron core, a high permeable metal disk, and a vibrating diaphragm.

Drawing of the Magnetic Buzzer

Page 55

GE864

GE864----QUAD V2 / GE864

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The disk and diaphragm are attracted to the core by the magnetic field. When an oscillating signal is moved through the coil, it produces a fluctuating magnetic field, which vibrates the diaphragm at a frequency of the drive signal. Thus the sound is produced relative to the frequency applied.

Diaphragm movement

1.1.1 Frequency Behavior

The frequency behavior represents the effectiveness of the reproduction of the applied signals.

Because its performance is related to a square driving waveform (whose amplitude varies from 0V to Vpp), if you modify the waveform (e.g. from square to sinus) the frequency response will change.

11.7.2. Power Supply Influence

Applying a signal whose amplitude is different from that suggested by manufacturer, the performance change following the rule: if resonance frequency

ffff

increases, amplitude decreases.

Because of resonance frequency depends from acoustic design, lowering the amplitude of the driving signal the response bandwidth tends to become narrow, and vice versa.

Summarizing: Vpp ↑ 

The risk is that the

ffff

could easily fall outside of new bandwidth; consequently the

oooo

SPL could be much lower than the expected.

11.7.3. Warning

ffff

↓ Vpp ↓ 

ffff

↑

It is very important to respect the sense of the applied voltage: never apply to the “-“

a voltage more positive than the “+”

. If this happens, the diaphragm vibrates in the opposite sense with a high probability to be expelled from its physical position, damaging the device forever.

Page 56

GE864

GE864----QUAD V2 / GE864

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11.7.4. Working Current Influence

In the component data sheet you will find the value of MAX CURRENT that represents the maximum average current that can flow at nominal voltage without current limitation.

In other words it is not the peak current, which could be twice or three times higher.

If driving circuitry does not support these peak values, the SPL will never reach the declared level or the oscillations will stop.

11.8. Using the Temperature Monitor Function

11.8.1. Short Description

The Temperature Monitor is a function of the module that permits to control its internal temperature and if properly set (see the #TEMPMON command on AT Interface guide) it raise to High Logic level a GPIO when the maximum temperature is reached.

11.8.2. Allowed GPIO

The AT#TEMPMON set command could be used with one of the following GPIO:

Signal

Signal Function

SignalSignal

TGPIO_01 GPIO01 Configurable GPIO CMOS 2.8V 1µA / 1mA

TGPIO_03 GPIO03 Configurable GPIO CMOS 2.8V 1µA / 1mA

TGPIO_08 GPIO08 Configurable GPIO CMOS 2.8V 1µA / 1mA

TGPIO_09 GPIO09 Configurable GPIO CMOS 2.8V 1µA / 1mA

TGPIO_10 GPIO10 Configurable GPIO CMOS 2.8V 1µA / 1mA

Signal

Signal Function

SignalSignal

TGPIO_02 GPIO02 Configurable GPIO CMOS 2.8V 1µA / 1mA Alternate function (JDR)

TGPIO_04 GPIO04 Configurable GPIO CMOS 2.8V 1µA / 1mA

TGPIO_05 GPIO05 Configurable GPIO CMOS 2.8V 1µA / 1mA Alternate function (RFTXMON)

TGPIO_07 GPIO07 Configurable GPIO CMOS 2.8V 1µA / 1mA Alternate function (BUZZER)

Function Type

FunctionFunction

The set command could be used also with one of the following GPIO but in that case the alternate function is not usable:

Function Type

FunctionFunction

Type

TypeType

Type

TypeType

Input /

Input / Input / output

output

output output current

current

currentcurrent

Input /

Input / Input / output

output

output output current

current

currentcurrent

Note

NoteNote

Note

NoteNote

Alternate function (RF Transmission Control)

Page 57

Net search / Not registered /

GE864

GE864----QUAD V2 / GE864

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11.9. Indication of Network Service Availability

The STAT_LED pin status shows information on the network service availability and Call status.

In the GE864-QUAD V2 / GE864-DUAL V2 modules, the STAT_LED usually needs an external transistor to drive an external LED.

Therefore, the status indicated in the following table is reversed with respect to the pin status.

LED st

LED status

LED stLED st Permanently off Device off

Fast blinking (Period 1s, Ton 0,5s) Slow blinking (Period 3s, Ton 0,3s)

Permanently on a call is active

atus Device

atusatus

Device Status

DeviceDevice

turning off

Registered full service

Status

StatusStatus

A schematic example could be:

Page 58

11.10. RTC Bypass Out

The VRTC pin brings out the Real Time Clock supply, which is separate from the rest of the digital part, allowing having only RTC going on when all the other parts of the device are off.

To this power output a backup capacitor can be added in order to increase the RTC autonomy during power off of the battery. NO Devices must be powered from this pin.

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Page 59

11.11. DAC Converter

11.11.1. Description

Ball

Ball Signal

Signal I/O

BallBall

SignalSignal

DAC Converter

DAC ConverterDAC Converter

C7 DAC_OUT AO Digital/Analog converter output D/A

C7C7

The GE864-QUAD V2 / GE864-DUAL V2 module provides one Digital to Analog Converter.

The on board DAC is a 10-bit converter, able to generate a analogue value based a specific input in the range from 0 up to 1023. However, an external low-pass filter is necessary.

GE864

GE864----QUAD V2 / GE864

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I/O

I/OI/O

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Function

FunctionFunction

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Internal

InternalInternal Pull up

Pull up

Pull upPull up

Type

TypeType

Voltage range (filtered) 0 2,6 Volt Range 0 1023 Steps

The precision is 10 bits, so if we consider that the maximum voltage is 2V, the integrated voltage could be calculated with the following formula:

Integrated output vo

Integrated output voltage = 2 * value / 1023

Integrated output voIntegrated output vo

DAC_OUT line must be integrated (for example with a low band pass filter) in order to obtain an analog voltage.

11.11.2. Enabling DAC

The AT command below is available to use the DAC function:

AT#DAC[=<enable>[,<value>]]

AT#DAC[=<enable>[,<value>]]AT#DAC[=<enable>[,<value>]]

<value>

<value> – scale factor of the integrated output voltage (0–1023, with 10 bit precision),

<value><value> and it must be present if <enable>=1

Refer to SW User Guide or AT Commands Reference Guide for the full description of this function.

Min

Min Max

MinMin

ltage = 2 * value / 1023

ltage = 2 * value / 1023ltage = 2 * value / 1023

<enable>=1.

<enable>=1<enable>=1

Max Units

MaxMax

Units

UnitsUnits

Page 60

GE864

GE864----QUAD V2 / GE864

GE864GE864

NOTE:

NOTE:NOTE:

The DAC frequency is selected internally. D/A converter must not be used during POWERSAVING.

11.11.3. Low Pass Filter Example

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11.12. ADC Converter

11.12.1. Description

Ball

Ball Signal

Signal I/O

BallBall

SignalSignal

ADC Conv

ADC Converters

ADC ConvADC Conv

J11

J11 ADC_IN1 AI Analog/Digital converter input A/D

J11J11

H11

H11 ADC_IN2 AI Analog/Digital converter input A/D

H11H11

The GE864-QUAD V2 / GE864-DUAL V2 module provides three Analog to Digital Converter.

The on board A/D are 11-bit converter. They are able to read a voltage level in the

range of 0÷2 volts applied on the ADC pin input, store and convert it into 11 bit word.

erters

erterserters

Input Voltage range 0 2 Volt AD conversion - 11 bits Resolution - < 1 mV

I/O

Function

I/OI/O

FunctionFunction

Min

Min Max

MinMin

Max Units

MaxMax

Units

UnitsUnits

Internal

InternalInternal Pull up

Pull up

Pull upPull up

Type

TypeType

Page 61

GE864

GE864----QUAD V2 / GE864

GE864GE864

11.12.2. Using ADC Converter

The AT command below is available to use the ADC function:

AT#ADC=1,2

AT#ADC=1,2AT#ADC=1,2

The read value is expressed in mV.

Refer to SW User Guide or AT Commands Reference Guide for the full description of this function.

11.13.

11.13. Debug of the

11.13.11.13.

Debug of the GE864

Debug of the Debug of the Production

Production

ProductionProduction

GE864----QUAD V2 / GE864

GE864GE864

To test and debug the mounting of the GE864-QUAD V2 / GE864-DUAL, we strongly recommend to foreseen test pads on the host PCB, in order to check the connection between the GE864-QUAD V2 / GE864-DUAL V2 itself and the application and to test the performance of the module connecting it with an external computer. Depending by the customer application, these pads include, but are not limited to the following signals:

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QUAD V2 / GE864----DUAL V2

QUAD V2 / GE864QUAD V2 / GE864

DUAL V2 in

DUAL V2DUAL V2

in in

Ball

Ball Signal

BallBall

JJJJ1111, J

, J2222, K1, K 2

, K1, K2 VBATT Main power supply

, J, J

, K1, K2, K1, K2

A1, A11, D6, F1, F11,

A1, A11, D6, F1, F11, A1, A11, D6, F1, F11, H1, H2, J3, K3, K4,

H1, H2, J3, K3, K4,

H1, H2, J3, K3, K4, H1, H2, J3, K3, K4, K5, K6, L1,

K5, K6, L1, L2, L3,

K5, K6, L1,K5, K6, L1, L6, L11

L6, L11

L6, L11L6, L11 E7

E7 C103/TXD Serial data input (TXD) from DTE

E7E7

H8 C104/RXD Serial data output (RXD) to DTE

H8H8

L8 PRWMON Power ON Monitor

L8L8

J5 ON/OFF* Input command for switching power ON or OFF (toggle command).

J5J5

A2 RESET* Reset input

A2A2

F10

F10 RX_TRACE RX Data for debug monitor

F10F10

D11

D11 TX_TRACE TX Data for debug monitor

D11D11

H4 SERVICE SERVICE connection

H4H4

L2, L3,

L2, L3, L2, L3,

Signal Function

SignalSignal

GND Ground

Function

FunctionFunction

Page 62

Lead

LeadLead

Lead

----

free Alloy:

free Alloy:free Alloy:

free Alloy:

Pin A1

GE864

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12. Assembly the GE864-QUAD V2 / GE864-DUAL V2 on the

Board

The Telit GE864-QUAD V2 / GE864-DUAL V2 have been designed in order to be compliant with the standard lead-free SMT process.

Surface finishing Sn/Ag/Cu for all solder pads

Page 63

GE864

GE864----QUAD V2 / GE864

GE864GE864

12.1.

12.1. Recommended foot print for the application

12.1.12.1.

Recommended foot print for the application

Recommended foot print for the applicationRecommended foot print for the application

NNNN OOOO TTTT EEEE ::::

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In order to easily rework the GE864-QUAD V2 / GE864-DUAL V2 module is suggested to consider on the application a 1.5mm inhibit area around the module.

It is also suggested, as common rule for a SMT component, to avoid having a mechanical part of the application in direct contact with the module.

12.2.

12.2. Stencil

12.2.12.2.

Stencil

StencilStencil

Stencil’s apertures layout can be the same of the recommended footprint (1:1), we suggest a thickness of stencil foil >120µm.

Page 64

12.3.

12.3. PCB pad design

12.3.12.3.

PCB pad design

PCB pad designPCB pad design

Non solder mask defined” (NSMD) type is recommended for the solder pads on the PCB.

Recommendations for PCB pad dimensions

Ball pitch [mm] 2,4 Solder resist opening diameter A [mm] 1,150 Metal pad diameter B [mm] 1 ± 0.05

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Page 65

GE864

GE864----QUAD V2 / GE864

GE864GE864

It is recommended no microvia without solder resist cover under the module and no microvia around the pads (see following figure).

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Holes in pad are allowed only for blind holes and not for through holes.

Recommendations for PCB pad surfaces:

Finish

Finish Layer thickness [µm]

FinishFinish Electro-less Ni / Immersion Au

The PCB must be able to resist the higher temperatures which are occurring at the lead-free process. This issue should be discussed with the PCB-supplier. Generally, the wettability of tin-lead solder paste on the described surface plating is better compared to lead-free solder paste.

12.4.

12.4. Solder

12.4.12.4.

Solder paste

SolderSolder

paste

paste paste

Layer thickness [µm] Properties

Layer thickness [µm]Layer thickness [µm] 3 –7 /

0.05 – 0.15

Lead free

Solder paste

Solder pasteSolder paste

Lead free

Lead freeLead free Sn/Ag/Cu

Properties

PropertiesProperties good solder ability protection, high shear force values

Page 66

GE864

12.4.1.

12.4.1. GE865 Solder reflow

12.4.1.12.4.1.

GE865 Solder reflow

GE865 Solder reflowGE865 Solder reflow

The following is the recommended solder reflow profile

GE864----QUAD V2 / GE864

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Profile Feature

Profile Feature Pb

Profile FeatureProfile Feature Average ramp-up rate (TL to TP) 3°C/second max Preheat – Temperature Min (Tsmin) – Temperature Max (Tsmax) – Time (min to max) (ts) Tsmax to TL – Ramp-up Rate Time maintained above: – Temperature (TL) – Time (tL) Peak Temperature (Tp) 245 +0/-5°C Time within 5°C of actual Peak Temperature (tp) Ramp-down Rate 6°C/second max. Time 25°C to Peak Temperature 8 minutes max.

Pb----Free Assembly

Free Assembly

PbPb

Free AssemblyFree Assembly

150°C 200°C 60-180 seconds

3°C/second max

217°C 60-150 seconds

10-30 seconds

Page 67

GE864

GE864----QUAD V2 / GE864

GE864GE864

NOTE:

NOTE:NOTE:

All temperatures refer to topside of the package, measured on the package body surface

WARNING

WARNING::::

WARNINGWARNING

The GE865 module withstands one reflow process only.

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Page 68

Section A

-A

13. Packing system

GE864

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The GE864-QUAD V2 / GE864-DUAL V2 are packaged on trays of is especially suitable for the GE864-QUAD V2 / GE864-DUAL V2 according to SMT processes for pick & place movement requirements.

pieces each. This

2020

The size of the tray is: 329 x 176mm.

Page 69

GE864

GE864----QUAD V2 / GE864

GE864GE864

WARNING:

WARNING:WARNING:

These trays can withstand at the maximum temperature of 65° C.

NOTE:

NOTE:NOTE:

All temperatures refer to topside of the package, measured on the package body surface

13.1.

13.1. Moisture sensibility

13.1.13.1.

Moisture sensibility

Moisture sensibilityMoisture sensibility

The level of moisture sensibility of GE864-QUAD V2 / GE864-DUAL V2 is “3”, in according with standard IPC/JEDEC J-STD-020, take care all the relatives requirements for using this kind of components.

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14. Conformity Assessment Issues

The Telit GE864-QUAD V2 has been assessed in order to satisfy the essential requirements of the R&TTE Directive 1999/05/EC (Radio Equipment & Telecommunications Terminal Equipments) to demonstrate the conformity against the harmonized standards with the final involvement of a Notified Body.

If the module is installed in conformance to the Telit installation manuals, no further evaluation under Article 3.2 of a R&TTE Directive Notified Body for the final product.

In all other cases, or if the manufacturer of the final product is in doubt, then the equipment integrating the radio module must be assessed against Article 3.2 R&TTE Directive.

In all cases the assessment of the final product must be made against the Essential requirements of the R&TTE Directive Articles 3.1(a) and any relevant Article 3.3 requirements.

This Hardware User Guide contains all the information you may need for developing a product meeting the R&TTE Directive.

Furthermore the GE864-QUAD V2 module is FCC Approved as module to be installed in other devices. This device is to be used only for fixed and mobile applications. If the final product after integration is intended for portable use, a new application and FCC is required. The GE864-QUAD V2 is conforming to the following US Directives:

• Use of RF Spectrum. Standards: FCC 47 Part 24 (GSM 1900)

• EMC (Electromagnetic Compatibility). Standards: FCC47 Part 15

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.

To meet the FCC's RF exposure rules and regulations:

Article 3.2 of the R&TTE Directive and do not require further involvement

Article 3.2Article 3.2

Articles 3.1(a) and (b)

Articles 3.1(a)Articles 3.1(a)

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Article 3.2 of the

Article 3.2Article 3.2

(b), Safety and EMC respectively,

(b)(b)

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• The system antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all the persons and must not be co-located or operating in conjunction with any other antenna or transmitter.

• The system antenna(s) used for this module must not exceed 1.4dBi (850MHz) and 3.0dBi (1900MHz) for mobile and fixed or mobile operating configurations.

• Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.

Manufacturers of mobile, fixed or portable devices incorporating this module are advised to clarify any regulatory questions and to have their complete product tested and approved for FCC compliance.

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15. SAFETY RECOMMENDATIONS

NOTE:

NOTE:NOTE:

Read this section carefully to ensure the safe operation.

Be sure the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and has to be avoided in the following areas:

• Where it can interfere with other electronic devices in environments such

as hospitals, airports, aircrafts, etc

• Where there is risk of explosion such as gasoline stations, oil refineries,

etc

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It is responsibility of the user to enforce the country regulation and the specific environment regulation.

Do not disassemble the product; any mark of tampering will compromise the warranty validity.

We recommend following the instructions of the hardware user guides for a correct wiring of the product. The product has to be supplied with a stabilized voltage source and the wiring has to be conforming to the security and fire prevention regulations.

The product has to be handled with care, avoiding any contact with the pins because electrostatic discharges may damage the product itself. Same cautions have to be taken for the SIM, checking carefully the instruction for its use. Do not insert or remove the SIM when the product is in power saving mode.

The system integrator is responsible of the functioning of the final product; therefore, care has to be taken to the external components of the module, as well as of any project or installation issue, because the risk of disturbing the GSM network or external devices or having impact on the security. Should there be any doubt, please refer to the technical documentation and the regulations in force.

Every module has to be equipped with a proper antenna with specific characteristics. The antenna has to be installed with care in order to avoid any interference with other electronic devices and has to guarantee a minimum distance from the body (20 cm). In case of this requirement cannot be satisfied, the system integrator has to assess the final product against the SAR regulation EN 50360.

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The European Community provides some Directives for the electronic equipments introduced on the market. All the relevant information are available on the European Community website:

http://europa.eu.int/comm/enterprise/rtte/dir99-5.htm

The text of the Directive 99/05 regarding telecommunication equipments is available, while the applicable Directives (Low Voltage and EMC) are available at:

http://europa.eu.int/comm/enterprise/electr_equipment/index_en.htm

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Telit Communications S p A GE864Q2B User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual