Service Manuals, User Guides, Schematic Diagrams or docs for : NOKIA Mobile Phone 7200 07-rh23-sysmod

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                   Customer Care Solutions
                  RH-23 Series Transceivers




           System Module and User
                  Interface




Issue 1 02/2004           Company Confidential   Nokia Corporation
                                                                                                                             RH-23
CCS Technical Documentation


Table of Contents
                                                                                                                                 Page No
    Glossary of Terms ......................................................................................................... 3
    Introduction ................................................................................................................... 6
      Electrical Modules ...................................................................................................... 6
      Interconnection Diagram ............................................................................................. 6
    Baseband ........................................................................................................................ 7
      Baseband Module, technical summary ....................................................................... 7
      Environmental Specifications ..................................................................................... 8
      Baseband Technical Specifications ............................................................................. 9
      Baseband External and Internal Signals and Connections ........................................ 12
      External Signals and Connections ............................................................................. 19
    Baseband Functional Description ................................................................................ 27
      Modes of Operation .................................................................................................. 27
      Power Up and Reset .................................................................................................. 29
      A/D Channels ............................................................................................................ 30
      FM Radio .................................................................................................................. 32
      External Audio .......................................................................................................... 35
      Memory Block .......................................................................................................... 39
      Clock distribution ...................................................................................................... 39
    RF Module Introduction .............................................................................................. 42
      RF Frequency Plan .................................................................................................... 43
      DC characteristics ..................................................................................................... 44
    RF characteristics ........................................................................................................ 47
      Frequency Synthesizers ............................................................................................. 52
      Receiver .................................................................................................................... 52
      Transmitter ................................................................................................................ 52
      Keyboard Illumination .............................................................................................. 55




2                                            COMPANY CONFIDENTIAL                                                Issue 1 02/2004
                                     Copyright 

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