User Guide

CCS Technical Documentation System Module and User Interface
NEM-2
Issue 1 07/03 Copyright Nokia. All rights reserved.. Page 3
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