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如题，怎么消除放大电路的幅频曲线凸起的地方，类似自激振荡。。
改变一下R9试试。
在R8上并联一个几个pF的电容对其输出相位进行适当的补偿，看下效果怎么样。
就像另外一个通道一样（c3），或如下图：
