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采用的是datasheet上这个原理图，实际输入的是幅度1Vpp频率1K的正弦波，用示波器检测输出的实际波形如下，为什么波形会一大一小呢，还有1K的信号怎么还存在？
怎么都没有人回复啊，都去准备其他的了嘛？
