User Manual
Table Of Contents
- Confidential Material
- Copyright
- Revision History
- Trademarks Notice
- Contents
- Preface
- Introduction
- Hardware Interface Description
- Electrical and Environmental Specifications Absolute Maximum Ratings
- Mechanical Design
- Antenna Interface
G610 GPRS Module Hardware User Manual Page 4 of 47
3.7 Serial Interfaces ..................................................................................................................... 23
3.7.1 Ring indicate ................................................................................................................ 24
3.7.2 DCD indicate ............................................................................................................... 25
3.8 SIM Interface .......................................................................................................................... 25
3.8.1 SIM Connection ........................................................................................................... 26
3.8.2 SIM Design Guidelines ................................................................................................ 26
3.8.3 SIM Detected feature .................................................................................................. 27
3.9 Audio Interface ....................................................................................................................... 27
3.9.1 1
st
Audio Channel: Microphone ................................................................................... 28
3.9.2 1
st
Audio Channel: Speaker ......................................................................................... 28
3.9.3 2
nd
Audio Channel: Microphone .................................................................................. 28
3.9.4 2
nd
Audio Channel: Speaker ........................................................................................ 29
3.9.5 Audio Design ............................................................................................................... 29
3.9.6 Switch Audio Channel by IO ........................................................................................ 30
3.10 A/D Interface .......................................................................................................................... 30
3.10.1 Power Supply ADC ...................................................................................................... 31
3.10.2 General Purpose ADC ................................................................................................. 31
3.11 Controls and Indicators Interface ........................................................................................... 31
3.11.1 VDD Reference Regulator
.......................................................................................... 32
3.11.2 External Reset ............................................................................................................. 32
3.11.3 LPG ............................................................................................................................. 33
3.11.4 Trace Ports .................................................................................................................. 34
3.11.5 General Purpose I/O ................................................................................................... 35
4 Electrical and Environmental Specifications Absolute Maximum Ratings ........................................ 36
4.1 Electrical Specifications Absolute Maximum Ratings ............................................................ 36
4.2 Environmental Specifications Absolute Maximum Ratings .................................................... 36
4.3 Application Interface Specifications ....................................................................................... 36
5 Mechanical Design ............................................................................................................................ 40
5.1 G610 Mechanical Specifications ............................................................................................ 40
5.2 Recommanded PCB layout: ................................................................................................... 41
5.3 Antenna Design ...................................................................................................................... 42
5.4 Reflow temperature profile ..................................................................................................... 44
6 Antenna Interface .............................................................................................................................. 45