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简介了开关电容滤波的基本原理,分析了几种解调PAM波的滤波器电路,重点讨论了采用单片PCM开关电容滤波器D2912解调PAM波时的问题和电路实现方法.
The basic principle of switched capacitor filtering is introduced. Several filter circuits for demodulating PAM wave are analyzed. The problems and circuit implementation of demodulating PAM wave with single chip PCM switched capacitor filter are discussed.