User Guide

RH-30/RH-31 Company Confidential
System Module Nokia Customer Care
Page 2 © 2004 Nokia Corporation. Issue 2 11/2004
Table of Contents
Page No
Glossary of Terms ....................................................................................................................................4
Introduction ..............................................................................................................................................7
Electrical Modules ................................................................................................................................7
Interconnection Diagram ...................................................................................................................7
System Module: Baseband ....................................................................................................................8
Baseband Module, technical summary ..........................................................................................8
Environmental Specifications ...........................................................................................................9
Temperature Conditions ..................................................................................................................9
Humidity and Water Resistance ....................................................................................................9
Baseband Technical Specifications ................................................................................................10
Absolute Maximum Ratings .........................................................................................................10
DC Characteristics ...........................................................................................................................10
Power Distribution diagram .........................................................................................................12
Baseband External and Internal Signals and Connections .....................................................13
FM Radio Interface ..........................................................................................................................14
External Signals and Connections .................................................................................................18
Keyboard (board-to-board) Connector ......................................................................................18
LCD Connector (Board to Board) ....................................................................................................19
DC Connector ....................................................................................................................................20
Bottom Connector ...........................................................................................................................20
SIM connector ..................................................................................................................................22
Internal Signals and Connections ...............................................................................................23
Baseband Functional Description .....................................................................................................24
Modes of Operation ...........................................................................................................................24
No Supply ...........................................................................................................................................24
Back-up ..............................................................................................................................................24
Acting Dead .......................................................................................................................................24
Active ..................................................................................................................................................24
Sleep Mode ........................................................................................................................................25
Charging .............................................................................................................................................25
Battery ................................................................................................................................................25
Power Up and Reset ...........................................................................................................................26
Power Up with PWR key ................................................................................................................27
Power Up when Charger is connected ......................................................................................27
Power Up when Battery is connected .......................................................................................27
RTC Alarm Power Up .......................................................................................................................28
A/D Channels .......................................................................................................................................28
FM Radio ...............................................................................................................................................29
Camera.................................................................................................................................................. 30
IR Module ..........................................................................................................................................30
SIM Interface ....................................................................................................................................30
ACI .......................................................................................................................................................31
External Accessory Regulator ......................................................................................................32
External Audio .....................................................................................................................................32
External Microphone Connection ...............................................................................................3
2
External Earphone Connections ..................................................................................................33
Internal Audio ......................................................................................................................................34