This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
在用opa1671做麦克风前置放器做音频ADC采样时，距离远声音太小，距离近声音太大，有没有推荐的自动AGC电路（参考电路），（由于功耗原因，不能用音频编解码芯片）
您好，
您可以看下 VCA810
1ma左右
