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日本某公司开始出售集成有延迟线的声表面波滤波器.据称,此声表面波滤波器改进了彩色电视机的视频电路,提高了电视机的性能,减少了所需元件数(整个元件成本可降低30%). 通过改变叉指式变换器的电极结构,集成声表面波滤波器的输入信号可提高彩色信号分量的速度,达450毫微秒.在一般彩色图象电路中,中频电路有一个声表面波滤波器,图象放大级有一条延迟线,可使视
A Japanese company started selling surface acoustic wave filters with integrated delay lines, which are said to improve the color television’s video circuitry and improve the performance of the television, reducing the number of components required (the entire component The cost can be reduced by 30%.) By changing the electrode structure of the interdigital transducer, the input signal of the integrated surface acoustic wave filter can increase the speed of the color signal component by 450 nanoseconds. In the general color image circuit, the intermediate frequency The circuit has a surface acoustic wave filter, the image amplification stage has a delay line, you can view