摘要
本文简述了ＭＦ１０开关电容滤波器的工作原理。介绍了利用ＭＦ１０组成滤波器品质因数和外接电阻的计算方法。最后给出了一个程控四阶巴特沃思低通滤波器的实用电路及测试结果。
This paper briefly introduces the principles of MF10 switched capacitor filter andpasentes the method of computing quality factor and external resistors. Finally,a programmable 4th order Butterworth lowpass filter circuit as well as experimental resultsare given.
关键词
开关电容
滤波器
低通滤波器
switched capacitor filter, quality factor, cut-off frequency
