User Guide

Table of Contents
Introduction............................................................................................................................................................6–5
Phone description .............................................................................................................................................6–5
Energy management..............................................................................................................................................6–7
Battery and charging ........................................................................................................................................6–7
Backup battery...................................................................................................................................................6–8
Normal and extreme voltages .........................................................................................................................6–8
Power key and system power-up....................................................................................................................6–9
Modes of operation...........................................................................................................................................6–9
Power distribution......................................................................................................................................... 6–10
Clocking scheme............................................................................................................................................. 6–10
Bluetooth ............................................................................................................................................................. 6–11
WLAN .................................................................................................................................................................... 6–12
FM radio................................................................................................................................................................ 6–13
USB........................................................................................................................................................................ 6–14
lrda interface ....................................................................................................................................................... 6–14
CBUS interface...................................................................................................................................................... 6–15
FBUS ...................................................................................................................................................................... 6–15
ECI interface ......................................................................................................................................................... 6–15
Charger interface................................................................................................................................................. 6–15
SIM interface ........................................................................................................................................................ 6–15
µSD card interface ............................................................................................................................................... 6–16
Camera ................................................................................................................................................................. 6–17
Main camera characteristics.......................................................................................................................... 6–17
User interface....................................................................................................................................................... 6–17
Display module............................................................................................................................................... 6–17
Keyboard and side keys................................................................................................................................. 6–18
Backlight and illumination............................................................................................................................ 6–20
ASICs...................................................................................................................................................................... 6–20
RAPIDO ............................................................................................................................................................ 6–20
BETTY N2300 ................................................................................................................................................... 6–21
VILMA N2200................................................................................................................................................... 6–21
Device memories................................................................................................................................................. 6–22
Combo memory .............................................................................................................................................. 6–22
Audio concept...................................................................................................................................................... 6–22
Audio HW architecture................................................................................................................................... 6–22
Internal microphone...................................................................................................................................... 6–23
External microphone and earpiece .............................................................................................................. 6–23
Internal earpiece............................................................................................................................................ 6–24
Internal speakers............................................................................................................................................ 6–24
Vibra circuitry ................................................................................................................................................. 6–24
AV connector................................................................................................................................................... 6–25
Baseband technical specifications..................................................................................................................... 6–25
External interfaces ......................................................................................................................................... 6–25
SIM IF connections.......................................................................................................................................... 6–26
Charger connector and charging interface connections & electrical characteristics .............................. 6–26
Internal interfaces.......................................................................................................................................... 6–27
Back-up battery interface electrical characteristics.................................................................................... 6–27
RF description ...................................................................................................................................................... 6–28
Block diagram................................................................................................................................................. 6–28
Receiver (RX)................................................................................................................................................... 6–28
RM-244
System Module and User Interface
Issue 1 COMPANY CONFIDENTIAL Page 6 –3
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