GE864-QUAD Automotive V2 Hardware User Guide
1vv0300840 Rev.0.1 24/11/09
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 3 of 65
Contents
1
Overview ...........................................................................................................................6
2
GE864-QUAD Automotive V2 Mechanical Dimensions.................................................7
3
GE864-QUAD Automotive V2 module connections.......................................................8
3.1
PIN-OUT...................................................................................................................................8
3.1.1
BGA Balls Layout........................................................................................................................... 12
4
Hardware Commands ....................................................................................................14
4.1
Turning ON the GE864-QUAD Automotive V2 module......................................................14
4.2
Turning OFF the GE864-QUAD Automotive V2..................................................................17
4.2.1
Hardware shutdown....................................................................................................................... 17
4.2.2
Hardware Unconditional Restart.................................................................................................... 18
5
Power Supply .................................................................................................................20
5.1
Power Supply Requirements...............................................................................................20
5.2
Power Consumption.............................................................................................................21
5.3
General Design Rules ..........................................................................................................22
5.3.1
Electrical Design Guidelines .......................................................................................................... 22
5.3.1.1
+ 5V input Source Power Supply Design Guidelines ................................................................ 22
5.3.1.2
+ 12V input Source Power Supply Design Guidelines .............................................................. 23
5.3.1.3
Battery Source Power Supply Design Guidelines ..................................................................... 25
5.3.2
Thermal Design Guidelines ........................................................................................................... 26
5.3.3
Power Supply PCB layout Guidelines ........................................................................................... 27
6
Antenna...........................................................................................................................28
6.1
GSM Antenna Requirements ...............................................................................................28
6.2
GSM Antenna - PCB line Guidelines...................................................................................29
6.3
GSM Antenna - Installation Guidelines ..............................................................................30
7
Logic level specifications..............................................................................................31
7.1
Reset signal ..........................................................................................................................32
8
Serial Ports .....................................................................................................................33
8.1
MODEM SERIAL PORT.........................................................................................................33
8.2
RS232 level translation ........................................................................................................35
8.3
UART level translation .........................................................................................................37
9
Audio Section Overview ................................................................................................40
9.1
INPUT LINES (Microphone) .................................................................................................41
9.1.1
Short description............................................................................................................................ 41
