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我参考datasheet里面的figure2电路搭建的可控增益电路，输出发现输出波形有失真，在示波器观察时打开频率限制以后失真消失，证明失真应该是高频信号（输入在15Mhz一下），觉得可能是自激问题。该如何解决这个问题呢？
