各位大神好:
我做了一个低通滤波器,发现在输出开路的情况下输出会缓慢的升到VCC,并且有一个震荡,在有信号输入的情况下一切正常,搞得我都想在输入前并联一个电阻了,可是我不甘心啊,各位帮下我。
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各位大神好:
我做了一个低通滤波器,发现在输出开路的情况下输出会缓慢的升到VCC,并且有一个震荡,在有信号输入的情况下一切正常,搞得我都想在输入前并联一个电阻了,可是我不甘心啊,各位帮下我。