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.