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mpy634以及uaf42的问题

Other Parts Discussed in Thread: MPY634, UAF42

首先是mpy634做锁相放大器。输出一直是奇怪的波形。。按照的是x2Y2接地。Z1输出短接.z2接地。。最简单的那种乘法器运用。

还有就是uaf42做50Hz的陷波器,,一直输出10V以上的直流,,没有任何波形  大概就是这样,比赛在即,希望能得到解决,谢谢啊