Telit Wireless Solutions
manual
GE863-QUAD GE863-PY Hardware User Guide
Output Lines Characteristics
Schematic
Conformity Assessment Issues
Hardware Commands
Pins Layout
Power Supply
Hardware Unconditional Reboot
Echo canceller type Handset
Using a Gpio Pad as Input
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GE863-QUAD
GE863-PY
Hardware User Guide
1vv0300715 Rev. 1 - 19/09/06
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Contents
GE863-QUAD GE863-PY Hardware User Guide
Contents
10.2
10.1
10.3
10.4
13.1
12.1
13.2
This document is relating to the following products
Overview
PIN-OUT
GE863 module connections
Pin Signal Function Internal Type Pull up
Pin Signal Function Internal Type
Pins Layout
Turning on the GE863-QUAD/PY
Hardware Commands
Turning off of the device can be done in two ways
Turning OFF the GE863-QUAD/PY
Hardware shutdown
Hardware Unconditional Reboot
GE863-QUAD
1Power Supply Requirements
Power Supply
GE863-QUAD/PY power requirements are
Electrical design Guidelines
2General Design Rules
An example of linear regulator with 5V input is
1.2 + 12V input Source Power Supply Design Guidelines
An example of switching regulator with 12V input is
Battery Source Power Supply Design Guidelines
Battery Charge control Circuitry Design Guidelines
Thermal Design Guidelines
Power Supply PCB layout Guidelines
GSM Antenna Requirements
Antenna
Serial Ports
GSM Antenna installation Guidelines
GSM Antenna PCB line Guidelines
Level Min Max
Absolute Maximum Ratings -Not Functional Parameter Min Max
Number Pad Number
Signals in the Uart connector on the EVK are
17-28-36 Ground 45-48-50-56
Clear to Send Output from the GE863-QUAD/PY that
2MODEM Serial Port 2 Python Debug
It is available on the following pins
3RS232 level translation
An example of level translation circuitry of this kind is
5V Uart level translation
GE863-QUAD
Audio Section Overview
GM863-GPS
Echo canceller type Handset
Microphone Paths Characteristic and Requirements
Echo canceller type Car kit hands-free
+ 20dB
You can set GA= +20dB to use standard resistor values
That means
TIP environment consideration
Other considerations
General Design Rules
Balanced Microphone Biasing
Microphone Biasing
Unbalanced Microphone Biasing
GE863-QUAD
Buffered Balanced Mic
Microphone Buffering
Sample circuit can be
Buffer gain is given by the formula
Gain = RR604605 = RR607606
Buffered Unbalanced Single Ended Microphone
Buffer bandwidth at -3dB shall be 4KHz
Freq . = 2π * R719* C726 2π * R711* C727
GE863-QUAD
Short description
Output Lines Speaker
SW volume level step Number of SW volume steps
Output Lines Characteristics
Noise Filtering
Handset Earphone Design
An example of internal Ear amplifier could be
Hands-Free Earphone Low Power Design
Car Kit Speakerphone Design
Short Description
Evaluation Kit for Telit Modules EVK2
@ 350mW
2 EVK2 Audio Lines Characteristics
ESD
Data Integrity
SIM Supply
Schematic
Layout
Using a Gpio Pad as Output
Using a Gpio Pad as Input
General Purpose I/O
Using the Buzzer Output GPIO7
10.3Using the Alarm Output GPIO6
11.1DAC Converter
DAC and ADC section
Description
Min Max Units
Command is AT#DAC=enable,value
An AT command is available to use the DAC function
Enabling DAC
Low Pass Filter Example
Input Voltage range AD conversion Bits Resolution
Using ADC Converter
11.2ADC Converter
12.1Transchip Camera
Camera
Type
Sensitivity Lux
Camera Interface Connectors
Camera Physical Detail & Connector Camera Socket Connector
Camera Board Module Main
Block Diagram for supported cameras
Schematic Diagrams for supported camera
Example usage script for camera
Camera setting shown here are the defaults ones
Taking an reading a photo
Mounting the GE863-QUAD / PY on the Application Board
13.2Module Finishing & Dimensions
13.1General
Lead-free Alloy
Surface finishing Ni/Au for all test pads
Recommended foot print for the application
Stencil
Debug of the GE863 in Production
PCB pad Design
Solder paste
Following is the recommended solder reflow profile
13.2.6 GE863-QUAD / PY Solder Reflow
GE863-QUAD
Section A-A
Packing System
Modules orientation on tray
Moisture Sensibility
Conformity Assessment Issues
Safety Recommandations
Revision Date Changes
Document Change Log
21/02/06
19/09/06
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