Introduction
Phone description
The device consists of two main mechanical blocks. The lower block holds the main PWB with most of the
electrical components. The upper block is basically the main flex that is connected to the main PWB with a
board-to-board connector. The upper block has the display, touch screen, ambient light sensor, secondary
camera, proximity sensor, RGB indication LED and earpiece.
Functional description
Baseband can be divided into two larger blocks. The application engine (APE) side runs with Linux operating
system which is controlled by OMAP3430 application processor. Most of the peripherals are connected to that.
Also OMAP controls the other major baseband block, the cellular engine side (CMT). The application engine
has 2Gbit of NAND flash and 2Gbit of SDRAM. Memory is stacked on top of the application processor.
Figure 48 System level block diagram
Main components
Function Description Item ref
Application engine OMAP3430 D4800
Application engine EM
ASIC
GAIA D4200
APE memory Combo 2G DDR/2G M3 D5000
Cellular engine RapuYama D2800
RX-51
System Module
Issue 1 COMPANY CONFIDENTIAL Page 6 –5
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