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Customer Care Solutions
RH-23 Series Transceivers
System Module and User
Interface
Issue 1 02/2004 Company Confidential Nokia Corporation
RH-23
CCS Technical Documentation
Table of Contents
Page No
Glossary of Terms ......................................................................................................... 3
Introduction ................................................................................................................... 6
Electrical Modules ...................................................................................................... 6
Interconnection Diagram ............................................................................................. 6
Baseband ........................................................................................................................ 7
Baseband Module, technical summary ....................................................................... 7
Environmental Specifications ..................................................................................... 8
Baseband Technical Specifications ............................................................................. 9
Baseband External and Internal Signals and Connections ........................................ 12
External Signals and Connections ............................................................................. 19
Baseband Functional Description ................................................................................ 27
Modes of Operation .................................................................................................. 27
Power Up and Reset .................................................................................................. 29
A/D Channels ............................................................................................................ 30
FM Radio .................................................................................................................. 32
External Audio .......................................................................................................... 35
Memory Block .......................................................................................................... 39
Clock distribution ...................................................................................................... 39
RF Module Introduction .............................................................................................. 42
RF Frequency Plan .................................................................................................... 43
DC characteristics ..................................................................................................... 44
RF characteristics ........................................................................................................ 47
Frequency Synthesizers ............................................................................................. 52
Receiver .................................................................................................................... 52
Transmitter ................................................................................................................ 52
Keyboard Illumination .............................................................................................. 55
2 COMPANY CONFIDENTIAL Issue 1 02/2004
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