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Other Parts Discussed in Thread: VCA821
为什么VCA821做的程控放大电路频率也会放大,输入1k赫兹,输出变成30多兆赫兹,而且幅值还变小了
你好
1、你这不是放大器放大频率,而是你的放大器自激振荡了
2、你是绘制PCB板还是手焊,要注意放大电路线性放大条件