GENERAL DESCRIPTION

The MSM7662 is an LSI device that decodes NTSC or PAL analog video signals into YCbCr and

RGB digital data based on ITU-RBT.601.

The device has built-in two channels of A/D converters and can accept composite video and S video signals for the input video signals. Composite video signals are converted to YCbCr and RGB digital data via the 2-dimensional Y/C separation circuit with an adaptive filter.

Analog video signals can be sampled by a clock at the pixel frequency or at twice the pixel frequency. A decimation filter is built-in for sampling at twice the pixel frequency.

Input signals are synchronized internally and high-speed locking for color burst is possible.

Because a FIFO buffer is built into the output format circuit, jitter-free output can be obtained even for non-standard signals.

APPLICATION EXAMPLES

Since the synchronization of input signals and high-speed locking for color burst are possible, the device is optimized for applications used by switching multiple cameras.

It is also used for various image processing applications because of jitter-free output data through a built-in FIFO buffer.

8-bit (YCbCr), 16-bit (8-bit (Y) + 8-bit (CbCr)), and 24-bit (RGB) output interfaces can be selected as an output mode so that various devices such as monitoring system, digital video memory, digital TV, video processing unit and video communication unit can be selected on the receiving side.