User Guide

ManualsBrandsNokia ManualsCell PhoneE75

141

142

143

144

145

146

147

148

149

150

Table of Contents

Introduction............................................................................................................................................................6–5

Phone description .............................................................................................................................................6–5

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

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

Clocking scheme............................................................................................................................................. 6–12

Bluetooth and FM RDS radio module................................................................................................................. 6–13

GPS module .......................................................................................................................................................... 6–14

WLAN module ...................................................................................................................................................... 6–15

High-speed USB.................................................................................................................................................... 6–15

CBUS interface...................................................................................................................................................... 6–16

FBUS interface...................................................................................................................................................... 6–16

ECI interface ......................................................................................................................................................... 6–16

USB charger interface.......................................................................................................................................... 6–16

SIM interface ........................................................................................................................................................ 6–17

MicroSD card interface ........................................................................................................................................ 6–18

Camera concept ................................................................................................................................................... 6–18

Camera concept.............................................................................................................................................. 6–18

User interface....................................................................................................................................................... 6–19

User interface.................................................................................................................................................. 6–19

Display module............................................................................................................................................... 6–19

Keyboard ......................................................................................................................................................... 6–20

Backlight and illumination............................................................................................................................ 6–20

ASICs...................................................................................................................................................................... 6–21

RAPIDOYAWE .................................................................................................................................................. 6–21

EM ASIC BETTY N2300 ..................................................................................................................................... 6–21

EM ASIC 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

Internal earpiece............................................................................................................................................ 6–23

Internal speakers and vibra circuitry ........................................................................................................... 6–24

External earpiece and microphone .............................................................................................................. 6–25

Baseband technical specifications..................................................................................................................... 6–25

External interfaces ......................................................................................................................................... 6–25

SIM IF connections.......................................................................................................................................... 6–25

Charger connector and charging interface connections & electrical characteristics .............................. 6–26

Internal interfaces.......................................................................................................................................... 6–27

Back-up battery interface electrical characteristics.................................................................................... 6–27

RF technical description...................................................................................................................................... 6–28

RF block diagram............................................................................................................................................ 6–28

Receiver (RX)................................................................................................................................................... 6–29

Transmitter (TX) ............................................................................................................................................. 6–29

Frequency mappings........................................................................................................................................... 6–30

GSM850 frequencies....................................................................................................................................... 6–30

RM-412; RM-413

System Module and User Interface

Issue 1 COMPANY CONFIDENTIAL Page 6 –3