User Guide

Issue 1 03/2005 COMPANY CONFIDENTIAL 3

RM-31

7 - System Module Nokia Customer Care

Table of Contents

Page No

Glossary of Terms............................................................................................... 7

Baseband ........................................................................................................... 10

Block diagram .................................................................................................. 11

Environmental Specifications.......................................................................... 13

Absolute maximum ratings............................................................................... 13

Temperature conditions ................................................................................... 13

Humidity and water resistance......................................................................... 13

Frequencies in baseband................................................................................. 14

PWB................................................................................................................. 14

Characteristics of the PWB ............................................................................ 14

Key components ............................................................................................ 14

Technical Specifications .................................................................................. 16

Baseband core................................................................................................. 16

UPP ................................................................................................................ 16

UEMEK .......................................................................................................... 16

External SRAM and Flash .............................................................................. 17

Energy management........................................................................................ 17

Modes of operation ........................................................................................ 17

No Supply ...................................................................................................... 17

Backup ........................................................................................................... 17

Acting Dead ................................................................................................... 17

Active ............................................................................................................. 18

Sleep Mode .................................................................................................... 18

Charging ........................................................................................................ 18

Power distribution ............................................................................................ 18

DC characteristics............................................................................................ 19

Supply voltage ranges ................................................................................... 19

Baseband regulators ...................................................................................... 20

Function Groups ............................................................................................... 21

Battery.............................................................................................................. 21

Audio................................................................................................................ 21

Internal microphone ....................................................................................... 21

Internal speaker ............................................................................................. 22

IHF speaker ................................................................................................... 23

External audio ................................................................................................ 23

External microphone connection .................................................................... 23

Headset connections ..................................................................................... 23

Test possibilities ............................................................................................. 23

Camera ............................................................................................................ 23

Key features ................................................................................................... 24

Specifications ................................................................................................. 25