摘要
本文概要介绍了CAD 8903机芯采用国产集成电路CD7680,CD74211,DG4053实现音频、视频切换功能的电路,并对CD7680中音频信号处理电路的特殊用法进行了说明。
This paper presents briefly the design of the circuit in the color TV chassis CAD8903 using IC's CD7680, CD74211 and DG4053 which are made in China to realize the switching of audio/ video signals, and describe special application of the audio signal processing circuit in the chip CD7680.
出处
《电视技术》
北大核心
1992年第6期31-34,共4页
Video Engineering
关键词
转换电路
伴音系统
音量控制
电视
Switching circuit
Sound system
Electronic volume control
