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Nokia N96 Service Manual: System Module Block Diagram

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System Module
Baseband description

System module block diagram

The device consists of two different main modules: transceiver and UI/slide module. The transceiver board
consists of baseband and RF components. The UI/slide module consists of the display, UI-FPC and MM key
module. Numeric keyboard is on the system/RF module.
Figure 43 System level block diagram
Baseband functional description
Digital baseband consists of an ISA (Intelligent Software Architecture) based modem and Symbian based
application sections. The modem functionality is in RapidoYawe, and the application processor Nomadik 1.5
acts as a platform for Symbian applications.
The cellular modem engine processor is Rapido. Yawe is HSDPA/WCDMA logic IC stacked on top of Rapido ASIC.
RapidoYawe supports WCDMA/HSDPA and GSM protocols. RapidoYawe operates with the 38.4MHz system
clock, which comes from VCTCXO, and provides 19.2MHz system clock to application processor. Cellular side
mixed signal functionality is divided into two ASIC's, Betty and AVilma, and a separate SMPS. Charging control,
core voltage regulator and FBUS level shifter are included in Betty; regulators, SIM interface, A/D-converters,
RTC and audio interface are included in AVilma. The cellular modem memory is a discrete combo memory
128Mbit NOR Flash and 128Mbit SDRAM.
The application processor ASIC is Nomadik1.5 STn8815. It processes application SW and handles the UI SW.
Nomadik1.5 consists of processors, HW accelerators and several I/O peripherals. STn8815S22, the package
variant used in this application, includes die-stacked memories in addition to STn8815 die. The memories
inside S22 package are 1-Gbit NAND with 16-bit interface and 2x512Mbit Mobile-DDR with 16-bit interface.
Application engine mixed signal IC is Touareg1bis, which includes APE I/O power supply, Nomadik1.5 core,
PLL and fuses power supplies, auxiliary power supply, MMC/SD card interface and power supply, and I2C
Issue 1
Page 7 –5
Copyright © 2008 Nokia. All rights reserved.



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L3, L4

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