Nokia N80 - Table of Contents

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Table of Contents

Baseband description............................................................................................................................................9–7

System module block diagram........................................................................................................................9–7

Baseband functional description.....................................................................................................................9–8

Absolute maximum ratings..............................................................................................................................9–8

Phone modes of operation...............................................................................................................................9–8

Power distribution..........................................................................................................................................9–10

Clocking scheme..............................................................................................................................................9–11

Bluetooth.........................................................................................................................................................9–12

FM radio............................................................................................................................................................9–12

USB....................................................................................................................................................................9–13

SIM interface....................................................................................................................................................9–13

IrDA interface...................................................................................................................................................9–14

SD card interface.............................................................................................................................................9–14

WLAN interface................................................................................................................................................9–14

Battery interface..............................................................................................................................................9–14

Camera interfaces............................................................................................................................................9–14

Back camera interface...............................................................................................................................9–14

Camera construction..................................................................................................................................9–15

Flash LED.....................................................................................................................................................9–15

Front camera..............................................................................................................................................9–16

User interface..................................................................................................................................................9–17

Main flexi..........................................................................................................................................................9–17

Slide position sensor.......................................................................................................................................9–17

Keyboards........................................................................................................................................................9–18

Display interface..............................................................................................................................................9–20

Display and keyboard backlight.....................................................................................................................9–20

ALS interface....................................................................................................................................................9–21

ASICs.................................................................................................................................................................9–22

RAP ASIC.......................................................................................................................................................9–22

EM ASIC N2200............................................................................................................................................9–22

EM ASIC N2300............................................................................................................................................9–22

Device memories.............................................................................................................................................9–23

RAP memories NOR flash and SDRAM.......................................................................................................9–23

Combo memory..........................................................................................................................................9–23

Audio concept.......................................................................................................................................................9–23

Audio HW architecture....................................................................................................................................9–23

Internal microphone.......................................................................................................................................9–24

External microphone.......................................................................................................................................9–24

Internal earpiece.............................................................................................................................................9–25

Internal speaker..............................................................................................................................................9–25

External earpiece.............................................................................................................................................9–26

Vibra circuitry..................................................................................................................................................9–26

System connector............................................................................................................................................9–27

Baseband technical specifications......................................................................................................................9–28

External interfaces..........................................................................................................................................9–28

External interfaces.....................................................................................................................................9–28

ACI interface electrical characteristics.....................................................................................................9–28

VOUT electrical characteristics..................................................................................................................9–29

USB IF electrical characteristics................................................................................................................9–29

FBUS interface electrical characteristics (between RAP and N2300)....................................................9–30

RM-91; RM-92

System Module Nokia Customer Care

Issue 1 COMPANY CONFIDENTIAL Page 9 –3