User Guide

RH-20 Company confidential
System Module and User Interface CCS Technical Documentation
Page 2 Nokia Corporation. Issue 1 10/2003
Table of Contents
Page No
Glossary of Terms ..........................................................................................................3
Introduction ....................................................................................................................6
Electrical Modules .......................................................................................................6
Interconnection Diagram .............................................................................................6
System Module: Baseband .............................................................................................7
Baseband Module, technical summary ........................................................................7
Environmental Specifications ......................................................................................8
Temperature Conditions ............................................................................................8
Humidity and Water Resistance ................................................................................8
Baseband Technical Specifications .............................................................................9
Absolute Maximum Ratings ......................................................................................9
DC Characteristics .....................................................................................................9
Power Distribution diagram ....................................................................................11
Baseband External and Internal Signals and Connections ........................................12
FM Radio Interface .................................................................................................13
External Signals and Connections .............................................................................17
Keyboard (board-to-board) Connector ....................................................................17
LCD Connector (Board to Board) .............................................................................18
DC Connector ..........................................................................................................19
Bottom Connector ...................................................................................................19
SIM connector .........................................................................................................21
Internal Signals and Connections ............................................................................21
Baseband Functional Description ................................................................................23
Modes of Operation ...................................................................................................23
No Supply ................................................................................................................23
Back-up ...................................................................................................................23
Acting Dead .............................................................................................................23
Active ......................................................................................................................23
Sleep Mode ..............................................................................................................24
Charging ..................................................................................................................24
Battery .....................................................................................................................24
Power Up and Reset ...................................................................................................25
Power Up with PWR key ........................................................................................26
Power Up when Charger is connected ....................................................................26
Power Up when Battery is connected .....................................................................26
RTC Alarm Power Up .............................................................................................26
A/D Channels .............................................................................................................27
FM Radio ...................................................................................................................28
Camera ....................................................................................................................29
IR Module ...............................................................................................................29
SIM Interface ...........................................................................................................29
ACI ..........................................................................................................................30
External Accessory Regulator .................................................................................31
External Audio ...........................................................................................................31
External Microphone Connection ...........................................................................31
External Earphone Connections ..............................................................................32
Internal Audio ............................................................................................................33