Features General Description

? Supporting analog RGB outputs for a display

monitor

? Supporting maximum pixel rate of 165MP/s or

graphics resolutions up to 1920x1200*

? High-speed SDVO?

(1G~2Gbps) AC-coupled serial

differential RGB inputs

? Supporting monitor connection detection

? Programmable power management

? Fully programmable through serial port

? Configuration through Intel?

SDVO Opcode ?

? Offered in 64-pin LQFP package and 64-pin QFN

package

* Reduced Blanking

?

Intel?

Proprietary.

The CH7317B is a Display Controller device interfaces

seamlessly to HDTV or PC monitors that is equipped with a

VGA RGB interface display connector. Its input port,

complied with Intel SDVO Specification 1.2, can accept a

digital graphics, high-speed, AC-coupled, serialdifferential RGB input signal, and convert it to analog RGB

signal for driving the display.

The CH7317B supports maximum pixel rate of 165MP/s and

is capable of displaying up to 1920x1200 resolution with

reduced blanking. The built-in serial port controller will allow

the graphics chipset to obtain the monitor’s EDID information

or communicate with CH7317B internal registers through

SDVO Opcodes. In addition, the transmitter is designed with

a monitor connection detection algorithm that allows the

graphics chipset to read back the connection status through

CH7317B internal registers.

The CH7317B provides the Boundary-scan test to help

system developers to check the interconnection between

chip I/O and the printed circuit board for faults. When

the device is powered down by the graphics chipset, its

current consumption is less than 100uA. The CH7317B is

available in 64-pin LQFP and 64-pin QFN packages.