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目前很多欧洲国家生产的PAL制彩色电视机彩色解码部分都采用TDA2560和TDA2522集成电路.现在把这两种集成电路的工作原理、它们相互之间的连接以及主要参数分述于下. TDA2560集成电路 TDA2560集成电路包括亮度与色度控制两部分,它的内部功能方框图见图1. (一)亮度控制部分亮度控制部分担负如下几种任务: 1.直接与亮度延迟线输出相匹配; 2.进行对比度和亮度的直流控制;
At present, many European countries produce PAL color TV color decoding part of the TDA2560 and TDA2522 integrated circuits are now the working principle of these two integrated circuits, the connection between them and the main parameters are described below. TDA2560 Integrated Circuit TDA2560 integrated circuit includes two parts of the brightness and color control, and its internal functional block diagram shown in Figure 1. (A) brightness control part of the brightness control section responsible for the following tasks: 1. Directly with the brightness delay line output matching; 2. Proceed DC control of contrast and brightness;