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                 Customer Care Solutions
                NEM-1 Series Transceivers




           System Module and User
                  Interface




Issue 1 06/03                           Nokia Corporation
NEM-1                        Company confidential
System Module and User Interface                         CCS Technical Documentation




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Page 2                       Nokia Corporation.                          Issue 1 06/03
                                                     Company confidential                  NEM-1
CCS Technical Documentation                                         System Module and User Interface

Table of Contents
                                                                                                                                 Page No
  Glossary of Terms .......................................................................................................... 7
  Introduction to NEM-1 Electronics.............................................................................. 11
    NEM-1 Description ...................................................................................................11
    Electrical Modules .....................................................................................................11
    Interconnection Diagram ...........................................................................................13
    Temperature Conditions ............................................................................................14
    Humidity ....................................................................................................................14
    Absolute Maximum Ratings ......................................................................................14
    DC Characteristics .....................................................................................................15
      Main Supply ............................................................................................................ 15
      Phone....................................................................................................................... 15
      BB Regulators ......................................................................................................... 15
      Audio Player regulators .......................................................................................... 16
  Baseband Functional Description ................................................................................ 17
    Modes of Operation ...................................................................................................17
      No Supply................................................................................................................ 17
      Back-up ................................................................................................................... 17
      Acting Dead............................................................................................................. 17
      Active ...................................................................................................................... 17
      Sleep Mode.............................................................................................................. 18
      Charging .................................................................................................................. 18
    Batteries .....................................................................................................................19
      Main Battery............................................................................................................ 19
      Backup Battery........................................................................................................ 19
    Supply Voltage Distribution ......................................................................................20
      Phone Supply Voltage............................................................................................. 21
        External Accessory Regulator ..............................................................................21
      Audio Player............................................................................................................ 22
    Power Up, Power Down and Reset ............................................................................23
      Phone....................................................................................................................... 23
      Audio Player............................................................................................................ 23
    Clocking .....................................................................................................................23
    SIM Interface .............................................................................................................25
    Board-to-board (B2B) concept ..................................................................................26
      Overview of B2B .................................................................................................... 26
      Interfaces related to B2B connectors ...................................................................... 26
      B2B connectors in detail ......................................................................................... 27
    Audio Player ..............................................................................................................29
      Audio Features ........................................................................................................ 29
      Audio ADSP............................................................................................................ 29
      Audio routing and conditioning .............................................................................. 29
        FM radio play ........................................................................................................30
        FM Radio/ Line-in recording ................................................................................31
        MP3/ AAC playback .............................................................................................31
        GSM Audio handsfree mode ................................................................................32
        Standard ringing tones/ alarm tones ......................................................................32
        MP3/ AAC/ MIDI Ringing tones ..........................................................................33


Issue 1 06/03                                    Nokia Corporation.                                                           Page 3
NEM-1                        Company confidential
System Module and User Interface                                                       CCS Technical Documentation

     Phone- Audio Player Interface (MADI).................................................................. 33
       Power and Reset ....................................................................................................33
       Wake- Up ..............................................................................................................34
       Communication .....................................................................................................34
       Audio ....................................................................................................................34
     MultiMediaCard MMC ........................................................................................... 34
     ADSP Flash Memory .............................................................................................. 35
     Loudspeaker and Amplifier..................................................................................... 35
   Acoustics ....................................................................................................................36
     Earpiece................................................................................................................... 36
     Microphone ............................................................................................................. 36
     Loudspeaker ............................................................................................................ 36
     Headset .................................................................................................................... 36
     Vibra........................................................................................................................ 36
   FM Radio ...................................................................................................................37
  System Module ............................................................................................................ 38
   Baseband Technical Specifications ...........................................................................38
     DC Characteristics................................................................................................... 38
       Regulators and Supply Voltage Ranges ................................................................38
  Baseband External and Internal Signals and Connections........................................... 40
   Internal Signals and Connections ..............................................................................40
     Internal microphone ................................................................................................ 40
     Internal speaker ....................................................................................................... 40
     Vibra ....................................................................................................................... 40
     Audio player............................................................................................................ 40
       DA250- SMPS Interface ......................................................................................40
       Stereo Codec .........................................................................................................41
       Loudspeaker Amplifier .........................................................................................41
       Phone- Audio Player Interface (MADI) ...............................................................42
     RF-BB interface ...................................................................................................... 42
     FM Radio Interface ................................................................................................. 44
   Internal Speaker .........................................................................................................44
     Integrated HF Speaker (loudspeaker)...................................................................... 45
   External Signals and Connections .............................................................................45
     Battery connector .................................................................................................... 45
     Bottom Connector ................................................................................................... 45
     DC Plug ................................................................................................................... 47
     Audio Line In Connector......................................................................................... 47
     SIM connector ......................................................................................................... 48
     MMC Connector ..................................................................................................... 48
  User Interface Modules ................................................................................................ 49
   Keyboard ....................................................................................................................49
   LCD ...........................................................................................................................49
       LCD connector ......................................................................................................49
   LCD & Keyboard Illumination ..................................................................................49
   UI B2B-Connectors ...................................................................................................50
  RF Module Introduction............................................................................................... 52
   RF Frequency Plan ....................................................................................................53



Page 4                                          Nokia Corporation.                                                    Issue 1 06/03
                                                      Company confidential                  NEM-1
CCS Technical Documentation                                          System Module and User Interface

   DC characteristics ......................................................................................................54
    Regulators................................................................................................................ 54
    Typical current consumption................................................................................... 55
    Power Distribution .................................................................................................. 56
  RF characteristics ......................................................................................................... 57
    Channel Numbers and Frequencies......................................................................... 57
    Main RF characteristics........................................................................................... 57
    Transmitter characteristics ...................................................................................... 57
    Receiver characteristics........................................................................................... 58
    RF Block Diagram .................................................................................................. 58
    RF Block Diagram NEM-1 ..................................................................................... 59
   Frequency Synthesizers .............................................................................................60
   Receiver .....................................................................................................................60
   Transmitter .................................................................................................................60
    Front End................................................................................................................. 60
    Power Amplifier...................................................................................................... 61
    RF ASIC Helgo ....................................................................................................... 62
    AFC function........................................................................................................... 62
     Antenna .................................................................................................................. 62




Issue 1 06/03                                     Nokia Corporation.                                                           Page 5
NEM-1                        Company confidential
System Module and User Interface                                                                     CCS Technical Documentation

Schematics/Layouts, EM11_10 module (A3 size) ............................................................................................
   Block diagram EM11 (ver.0.0 ed.2) ........................................................................................................ 1
   Block diagram baseband (v.0.0 ed 2) ....................................................................................................... 2
   System Connector (ver. 0 ed. 2................................................................................................................. 3
   Key user Interface (ver.0.0 ed. 2)........................................................................................................... 4
   Audio (ver. 0.0 ed. 2) .................................................................................................................................. 5
   Audio player block diagram (ver.0.0 ed. 2) .......................................................................................... 6
   Audio Power (ver.0 ed. 2) ....................................................................................................................... 7
   Audio DSP (ed. 0.0 ed.2)............................................................................................................................... 8
   Memory ST (ver. 0 ed.2) ............................................................................................................................... 9
   Audio Codec (ed. 0 ver. 2) ........................................................................................................................ 10
   MMC (v.0 ed. 2) .......................................................................................................................................... 11
   JTAG interface (ed. 0 ver. 2) ................................................................................................................... 12
   RF block diagram (ed.0.0 ver. 2).............................................................................................................. 13
   RF grounds (ed. 0 ver.2) ............................................................................................................................ 14
   HELGO ASIC (ver. 0.0 ed.2) ...................................................................................................................... 15
   Power amplifier and detection (ver.2.0 ed 2) .................................................................................... 16
   RX front end and antenna swit (Ver. 2.0 ed. 2) ................................................................................. 17
   SIM reader (ver. 0.0 ed. 2) .................................................................................................................... 18
   Application Engine Interface v. 1.3 ed.2.............................................................................................. 19
   FM radio unit (v.1.3 ed.153) .................................................................................................................... 20
   FM radio unit 2 (v. 0.0 ed.118) ............................................................................................................. 21
   UPP 8M (v.2.0 ed.102) ............................................................................................................................. 22
   Discrete power management (ver. 1.3 ed. 115) ............................................................................... 23
   Light filtering (ver. 2.0 ed. 28)............................................................................................................... 24
   Old power discrete (ver. 0.0 ed. 8) ..................................................................................................... 25
   GSM RF-Baseband interface (ver. 1.3 ed.39) ................................................................................ 26
   Flash memory (ver. 2.0 ed.56) ................................................................................................................. 27
   4Mbit SRAM (ver. 2.0 ed.31) .................................................................................................................. 28
   Decoupling capacitors for Flash and SRAMs (v.2.0 ed.6)................................................................ 29
   Parts Placement EM11_10a, top ........................................................................................................... 30
   Parts Placement EM11_10a, bottom ................................................................................................... 31
   Test Points EM11_10, top ........................................................................................................................ 32
   Test Points EM11_10, bottom ................................................................................................................. 33

Schematics/Layouts, EM10_08a module (A3 size)..........................................................................................
   User Interface diagram 1 (ver.0.0 ed.3) .................................................................................................. 1
   Key User Interface 2 (v.0.0 ed.2) ............................................................................................................ 2
   Parts placement diagram EM 10_08a, top ........................................................................................... 3
   Parts placement diagram EM 10_08a, bottom..................................................................................... 4




Page 6                                                   Nokia Corporation.                                                             Issue 1 06/03
                                 Company confidential                  NEM-1
CCS Technical Documentation                     System Module and User Interface


Glossary of Terms
       ACI       Accessory Control Interface

       ADC       Analog-Digital Converter

       AEC       Acoustic Echo Canceller

       AFC       Automatic Frequency Control

       AGC       Automatic Gain Control

       ALWE      Background noise suppressor

       AMS       After Market Service

       API       Application Programming Interface

       ARM       Processor architecture

       ASIC      Application Specific Integrated Circuit

       BB        Baseband

       CBus      Control Bus connecting UPP_WD2 with AEM and UEM

       CMT       Cellular Mobile Telephone (MCU and DSP)

       CPU       Central Processing Unit

       CTSI      Clocking Timing Sleep Interrupt

       COG       Chip On Glass

       CSP       Chip Scale Package

       CSTN      Color Super Twisted Nematic

       DAC       Digital-Analog Converter

       DAI       Digital Audio Interface

       DB        Dual band

       DCS1800   Digital Cellular system at 1800 MHz

       DCT3      Digital Core Technology, 3rd generation

       DCN       Offset Cancellation control signal


Issue 1 06/03                 Nokia Corporation.                          Page 7
NEM-1                        Company confidential
System Module and User Interface                         CCS Technical Documentation

         DLL       Dynamic Link Library

         DRC       Dynamic Range Controller

         DSP       Digital Signal Processor

         EGSM      Extended 

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