System ModuleOriginal, ---SCHEMATY---GSM
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NHM-3
System Module
PAMS Technical Documentation
Table of Contents
System Module.....................................................................................................1
Vocabulary ...................................................................................................................4
Baseband architecture .................................................................................................... 5
Audio Parts ..................................................................................................................6
Power Consumption. ....................................................................................................7
Vibra power specification ......................................................................................... 7
Electrical Interfaces .....................................................................................................7
Shielding.................................................................................................................... 7
System Connector ..................................................................................................... 7
Signals of the system connector & FPC connector ................................................... 9
Interface Base-band to RF....................................................................................... 10
AC and DC Characteristics of RF/BB signals ....................................................... 11
Power Supplies for RF/BB ...................................................................................... 15
Serial RF Interface .................................................................................................. 15
Flash Programming ....................................................................................................16
Flash Programming Connections in System Connector.......................................... 16
Battery Connector ................................................................................................... 16
SIM Card Connector : Code 5409145..................................................................... 18
Infrared Interface Module ....................................................................................... 18
Interface Base-band to LCD Module ...................................................................... 20
Real Time Clock ........................................................................................................21
Audio Connections ....................................................................................................21
Panel Connections .....................................................................................................22
Production Test Interface ........................................................................................ 23
RF Module ................................................................................................................... 24
Maximum Ratings .....................................................................................................24
RF Characteristics ........................................................................................................ 25
Internal Antenna ........................................................................................................25
Internal Antenna Characteristics ................................................................................26
RF Frequency Plan ....................................................................................................27
DC characteristics .....................................................................................................27
Regulators................................................................................................................ 27
RF Functional Description-Diagram .........................................................................28
Frequency Synthesizer ...............................................................................................29
AFC function .............................................................................................................30
Receiver .....................................................................................................................31
AGC strategy .............................................................................................................32
Receiver characteristics .............................................................................................33
Transmitter ................................................................................................................34
Transmitter characteristics .........................................................................................35
Parts List of SM4 (EDMS Issue 3.13) ................................................ Code:0201490 36
NHM-3
PAMS Technical Documentation
System Module
Fig 1 Baseband Block Diagram ...........................................................................................6
Fig 2 System Connector.......................................................................................................8
Fig 3 Battery Connector PCB Footprint ..............................................................................18
Fig 4 LCD Foil Connection Footprint .................................................................................21
Fig 5 Panel Test Interface Signals .......................................................................................23
Fig 6 RF Fequency Plan......................................................................................................27
Fig 7 Frequency Synthesiser ................................................................................................29
NHM-3
System Module
PAMS Technical Documentation
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