Baseband Description; System Module Block Diagram; Baseband Functional Description; Application Processor - Nokia rx-34 Service Manual

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RX-34

System Module

Baseband description

The device consists of four different main modules: engine (1QU), UI flex (1VY), camera and LCD module. The

engine module consists of BB and RF components. Connection between UI flex, camera and display is done

with board-to-board connectors.

Figure 57 System module block diagram

The device is based on OMAP2420 (D4800) application processor on top of which the SDRAM / MuxOneNAND

combo memory is stacked. More detailed information about OMAP2420 (D4800) is presented in the following

chapter. EM asics are EM ASIC D1420, EM ASIC N1310 and EM ASIC N4200. Keyboard and touch pad controller

and audio codec are integrated in EM ASIC N4100. HS-USB interface goes via USB controller ASIC N5350 and

USB EM ASIC N5350. WVGA display has external display frame buffer D1510.

High level block diagram of the device is shown in thefollowing figure.

The application processor is also called an application ASIC because it is processing application SW and

handles the UI SW. It consists of the application processor and peripheral subsystems such as camera, display

and keyboard driver blocks.

In addition to interfaces mentioned above, the peripherals block includes several different I/O interfaces, for

example, for keyboard, modem chip, audio, Bluetooth and so on.

Issue 2

COMPANY CONFIDENTIAL

Page 9 –5

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