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请大神推荐一个方波伏值检测电路

Other Parts Discussed in Thread: LM393

最近有一个项目是检测方波(频率1000hz-10000hz)的幅度的项目,要求方波只要幅度大于100mV,就需要送单片机一个信号.方波的幅度最大范围是0-5V.

求大神推荐一个电路实现,多谢.

我想的是用通用运放+比较器,但是不知道如何具体实现.

谢谢坛子里的大神!!!!!