LA7680/LA7681是日本三洋公司新推出的彩色电机专用单片集成电路。它内部包括图像中频伴音中频处理电路、视频信号放大与控制电路、色度解码及行场扫描电路等部分,因此它完成了彩色电视机的全部小信号处理功能,相当于目前国内仍在大量使用的TA7680、TA7698或M51354、uPC1423两片集成电路的总和,故它的集成度高,功能强,引脚少,减少了外围电路元件及联线的数量,利于提高整机的可靠性,降低 LA7680 / LA7681 is Japan’s new Sanyo’s dedicated color motor monolithic integrated circuits. It includes the image IF audio intermediate frequency processing circuit, video signal amplification and control circuit, chrominance decoding and line field scanning circuit and other parts, so it completed all the small color TV signal processing capabilities, equivalent to the current domestic is still heavily used The TA7680, TA7698 or M51354, uPC1423 integrated circuit of the two, so it’s high integration, strong function, fewer pins, reducing the number of external circuit components and the line, which will help improve the reliability of the machine and reduce