Features

? DVI Transmitter up to 165M pixels/second

? DVI low jitter PLL

? DVI hot plug detection

? Supporting graphics resolutions up to 1600x1200 pixels

and 1920x1200 reduced blanking

? Providing RGB output

? DAC connection detection

? Programmable power management

? Fully programmable through serial port

? Complete Windows and DOS driver support

? Low voltage interface support to graphics device

? Three 10-bit video DAC outputs

? Offered in a 64-pin LQFP package

General Description

The CH7301C is a display controller device which accepts

a digital graphics input signal, and encodes and transmits

data through a DVI or DFP (Digital flat panel). The device

accepts data over one 12-bit wide variable voltage data

port which supports different data formats including RGB

and YCrCb.

The DVI processor includes a low jitter PLL for generation

of the high frequency serialized clock, and all circuitry

required to encode, serialize and transmit data. The

CH7301C comes in versions able to drive a DFP display at

a pixel rate of up to 165MHz, supporting UXGA

resolution displays. No scaling of input data is performed

on the data output to the DVI device. See Figure 1 for the

functional block diagram of the CH7301C.

Color space conversion from YCrCb to RGB is supported

in both DVI and VGA bypass modes.