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CCS Technical Documentation
NEM-2 Series Transceivers
System Module and User
Interface
Issue 1 07/03 Copyright Nokia. All rights reserved.
NEM-2
System Module and User Interface CCS Technical Documentation
Table of Contents
Page No
Glossary of Terms .......................................................................................................... 5
Introduction.................................................................................................................... 8
Electrical Modules .......................................................................................................8
Interconnection Diagram .............................................................................................9
Temperature Conditions ............................................................................................10
Humidity ....................................................................................................................10
Absolute Maximum Ratings ......................................................................................10
DC Characteristics .....................................................................................................11
Main Supply ............................................................................................................ 11
Phone....................................................................................................................... 11
BB Regulators ......................................................................................................... 11
Audio Player regulators .......................................................................................... 12
User Interface Modules ................................................................................................ 13
Keyboard ....................................................................................................................13
Display .................................................................................................................... 13
LCD & Keyboard Illumination ..................................................................................14
UI B2B-Connector .....................................................................................................14
System Module : Baseband.......................................................................................... 16
Baseband Technical Specifications ...........................................................................16
DC Characteristics................................................................................................... 16
Power Distribution diagram .................................................................................... 17
Baseband External and Internal Signals and Connections ........................................18
FM Radio Interface ................................................................................................. 24
Internal Speaker....................................................................................................... 25
Integrated HF Speaker............................................................................................. 25
External Signals and Connections .............................................................................25
Battery connector .................................................................................................... 25
Bottom Connector ................................................................................................... 26
DC Plug ................................................................................................................... 28
Audio Line In Connector......................................................................................... 28
SIM connector ......................................................................................................... 29
MMC Connector ..................................................................................................... 29
Internal Signals and Connections ..............................................................................30
Internal microphone ................................................................................................ 30
Internal speaker ....................................................................................................... 30
Vibra ....................................................................................................................... 30
Audio player............................................................................................................ 30
Phone- Audio Player Interface (MADI).................................................................. 32
Baseband Functional Description ................................................................................ 33
Modes of Operation ...................................................................................................33
No Supply................................................................................................................ 33
Back-up ................................................................................................................... 33
Acting Dead............................................................................................................. 33
Active ...................................................................................................................... 33
Sleep Mode.............................................................................................................. 34
Charging .................................................................................................................. 34
Battery ..................................................................................................................... 34
Page 2 Copyright Nokia. All rights reserved. Issue 1 07/03
NEM-2
CCS Technical Documentation System Module and User Interface
Supply Voltage Distribution ......................................................................................36
Phone....................................................................................................................... 37
Audio Player............................................................................................................ 38
Power Up, Power Down and Reset ............................................................................40
Phone....................................................................................................................... 40
Audio Player............................................................................................................ 40
Clocking .....................................................................................................................40
This clock is distributed to audio codec as well. .......................................................41
Phone- Audio Player Interface (MADI) ....................................................................42
Power and Reset ...................................................................................................... 42
Wake- Up ................................................................................................................ 42
Communication ....................................................................................................... 43
Audio....................................................................................................................... 43
Audio Player ..............................................................................................................43
Audio Features ........................................................................................................ 43
Audio routing and conditioning .............................................................................. 43
FM Radio ...................................................................................................................46
SIM Interface........................................................................................................... 46
MultiMediaCard MMC ........................................................................................... 47
Flash Memory ......................................................................................................... 47
Ringing Tone Speaker and Amplifier ..................................................................... 47
Audio Digital Signal Processor (ADSP) ................................................................. 47
External Accessory Regulator ................................................................................. 48
Acoustics ....................................................................................................................48
Earpiece................................................................................................................... 48
Microphone ............................................................................................................. 49
Ringing tone speaker............................................................................................... 49
Vibra........................................................................................................................ 49
Headset .................................................................................................................... 49
Batteries .....................................................................................................................50
Main Battery............................................................................................................ 50
Backup Battery........................................................................................................ 50
Flash Programming ....................................................................................................50
RF Module Introduction............................................................................................... 51
RF Frequency Plan ....................................................................................................52
DC characteristics ......................................................................................................53
Regulators................................................................................................................ 53
Typical current consumption................................................................................... 54
RF characteristics ......................................................................................................... 55
Power Distribution .................................................................................................. 55
Channel Numbers and Frequencies......................................................................... 56
Main RF characteristics........................................................................................... 56
Transmitter characteristics ...................................................................................... 56
Receiver characteristics........................................................................................... 57
RF Block Diagram .................................................................................................. 57
RF Block Diagram NEM-2 ..................................................................................... 58
Frequency Synthesizers .............................................................................................59
Receiver .....................................................................................................................59
Issue 1 07/03 Copyright Nokia. All rights reserved.. Page 3
NEM-2
System Module and User Interface CCS Technical Documentation
Transmitter .................................................................................................................59
Front End................................................................................................................. 60
Power Amplifier...................................................................................................... 61
RF ASIC Helgo ....................................................................................................... 61
AFC function........................................................................................................... 61
Antenna .................................................................................................................. 61
Page 4 Copyright Nokia. All rights reserved. Issue 1 07/03
NEM-2
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 UEMK
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 07/03 Copyright Nokia. All rights reserved.. Page 5
NEM-2
System Module and User Interface CCS Technical Documentation
DLL Dynamic Link Library
DRC Dynamic Range Controller
DSP Digital Signal Processor
EGSM Extended