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Table of Contents

Introduction............................................................................................................................................................6–7

Phone description .............................................................................................................................................6–7

Energy management..............................................................................................................................................6–8

Battery and charging ........................................................................................................................................6–8

Backup battery...................................................................................................................................................6–9

Normal and extreme voltages .........................................................................................................................6–9

Power key and system power-up................................................................................................................. 6–10

Modes of operation........................................................................................................................................ 6–10

Power distribution......................................................................................................................................... 6–11

Clocking scheme............................................................................................................................................. 6–11

Bluetooth ............................................................................................................................................................. 6–12

FM radio................................................................................................................................................................ 6–12

High-speed USB.................................................................................................................................................... 6–13

CBUS interface...................................................................................................................................................... 6–13

FBUS ...................................................................................................................................................................... 6–13

ECI interface ......................................................................................................................................................... 6–13

Charger interface................................................................................................................................................. 6–13

SIM interface ........................................................................................................................................................ 6–13

µSD card interface ............................................................................................................................................... 6–14

Accelerometer...................................................................................................................................................... 6–15

I/O Expander ........................................................................................................................................................ 6–15

GPS interface........................................................................................................................................................ 6–16

WLAN functional description.............................................................................................................................. 6–18

TV out interface ................................................................................................................................................... 6–21

Camera concept ................................................................................................................................................... 6–21

Imaging characteristics ................................................................................................................................. 6–21

Imaging HWA.................................................................................................................................................. 6–22

User interface....................................................................................................................................................... 6–23

Resistive touch screen ................................................................................................................................... 6–23

Proximity sensor ....................................................................................................................................... 6–23

Touch screen controller............................................................................................................................ 6–25

Display ............................................................................................................................................................. 6–25

Display........................................................................................................................................................ 6–25

Backlight and illumination............................................................................................................................ 6–26

Digital Ambient Light Sensor (ALS) .............................................................................................................. 6–27

ASICs...................................................................................................................................................................... 6–28

RAPIDOYAWE .................................................................................................................................................. 6–28

EM ASIC N2300 (Betty).................................................................................................................................... 6–28

EM ASIC N2200 (Avilma)................................................................................................................................. 6–28

Device memories................................................................................................................................................. 6–29

Combo memory .............................................................................................................................................. 6–29

Audio concept...................................................................................................................................................... 6–29

Audio HW architecture................................................................................................................................... 6–29

Internal microphone...................................................................................................................................... 6–30

External microphone...................................................................................................................................... 6–31

Internal earpiece............................................................................................................................................ 6–32

Internal speakers............................................................................................................................................ 6–33

External earpiece............................................................................................................................................ 6–33

Vibra ................................................................................................................................................................ 6–34

AV connector................................................................................................................................................... 6–35

RM-356

System Module and User Interface

Issue 1 COMPANY CONFIDENTIAL Page 6 –3