MIC电路共模干扰设计
时间:10-02
整理:3721RD
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图1中C1的消除共模干扰是如何实现的,图1和图2的区别在哪里?坐等大神解答
![](../imgqa/ele/dianlu/dianlu-3721rd.com-6739upbx3ki1w44.jpg)
![](http://bbs.elecfans.com/data/attachment/forum/201506/03/153506q4qai8pb48dbyush.jpg)
![](../imgqa/ele/dianlu/dianlu-3721rd.com-6739upbx3ki1w44.jpg)
![](http://bbs.elecfans.com/data/attachment/forum/201506/03/153506q4qai8pb48dbyush.jpg)
下图是多了2个电阻,相当于给上图的2.2K电阻分成了2个电阻。下图是MTK推荐的MIC设计电路图,就是不知道为什么要这么去设计。