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Circuit Description
DPRAM Memory(UME401:70P248L55)
4Kx16bit dual port RAM
● It is accessed by Phone and PDA, but not accessed simultaneously.
● Generally, Instructions and data used by Phone and PDA are stored.
⑶
LCD part
PXA270 has a LCD controller.
LCD module
● A transmissive type color active matrix TFT
● It is composed of a TFT LCD module(TFT LCD panel, driver ICs), a Backlight unit and a touch
screen panel.
● The resolution of 2.4inch contains 240x320 pixels and can display 65K colors.
⑷
Audio part
PDA plays audio files via WM9712 and the voice of the phone is connected to the WM9712.
Audio Codec(UCD501:WM9712LEFL)
The WM9712 is a high quality stereo codec with an integrated touch screen controller.
Interfaced to PXA270 via AC'97 protocol.
● AC'97 Rev 2.2 specification
● Headphone outputs
● A complete 4-wire touch screen controller
⑸
Wireless Part
Antenna(C1103RS)
Antenna receives signal from AP(Access Point) or other devices.
It is a ISM(industrial, Scientific, Medical frequencies) Band Antenna that covers only 2.4 GHz.
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
2-6
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