User Guide

NPE-3
System Module PAMS Technical Documentation
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Glossary of Terms.......................................................................................................... 5
Baseband ........................................................................................................................ 7
Audio parts ...................................................................................................................9
Power consumption .....................................................................................................9
Electrical Interfaces .....................................................................................................9
Shielding. ...................................................................................................................10
System Connector ......................................................................................................10
Interface Base-band to RF .........................................................................................13
Serial RF interface .....................................................................................................19
Flash Programming connections. ..............................................................................20
Battery connector .......................................................................................................20
SIM card connector ...................................................................................................22
Infrared interface module ..........................................................................................22
Interface Base-band to LCD module .........................................................................23
Real Time Clock ........................................................................................................24
Audio connections .....................................................................................................24
Flash programming ....................................................................................................25
RF Module ................................................................................................................... 27
Maximum Ratings .....................................................................................................27
RF Characteristics ......................................................................................................27
RF Frequency Plan ....................................................................................................28
DC characteristics .....................................................................................................28
Power Distribution Diagram ......................................................................................29
RF Functional Description-Diagram .........................................................................30
Frequency Synthesizer ...............................................................................................31
Receiver .....................................................................................................................32
Transmitter .................................................................................................................33
AGC strategy ............................................................................................................34
AFC function .............................................................................................................34
DC-compensation ......................................................................................................35
Receiver characteristics .............................................................................................35
Transmitter characteristics ........................................................................................36
Parts List -GX3 ............................................................................................................ 37