07-nem1-sysmod.pdf

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

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