MSM7664 Datasheet | OKI Electric

PEDL7664-01 PEDL7664-01 This version: Nov. 1999 MSM7664 el Pr y ar in im ¡ Semiconductor MSM7664 ¡ Semiconductor NTSC/PAL Digital Video Decoder GENERAL DESCRIPTION The MSM7664 is an LSI device that decodes NTSC or PAL analog video signals into YCb Cr and RGB digital data based on ITU-RBT.601. The device has built-in two channels of A/D converters and can accept posite video and S video signals for the input video signals. posite video signals are converted to YCb Cr 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. The MSM7664 is an improved version of the MSM7662, and is particularly superior in the picture quality and stabilization of synchronization in the PAL decoder as well as the stabilization of synchronization in the decoder under weak electric fields. Further, although a part of the registers have been added, the electrical characteristics of both products are almost identical and their pin patibility makes it possible to use the MSM7664 instead of the MSM7662. 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. Even in the PAL mode, a YC separation characteristics equivalent to the NTSC mode has been achieved thereby making this LSI ideally suitable for PAL mode applications. 8-bit (YCb Cr), 16-bit (8-bit (Y) + 8-bit (Cb Cr)),...