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.