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关于mpy634的直流偏移随频率的增大而增大

Other Parts Discussed in Thread: MPY634

在使用mpy634做乘法的时候输入X=sin(t),Y=dc,out与Z1间接9.1k电阻,Z2接地,SF悬空,在X的频率从1MHz到5MHz的时候输出的直流偏移逐渐增大,从10mV变到150mV,求解。谢了!(输入的正弦波无直流偏移)