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Other Parts Discussed in Thread: VCA821
照着芯片手册连线的，波形不对，也没放大，哪里有错呢？
谢谢，请问vca821的增益是怎么算的啊？
你这个电路的增益G=2（R5/R3)=10.放大倍数为10.
ok，谢谢啦
