可调增益20db以内,供电电源5V以内,谢谢
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.
您好,可调增益放大器可以考虑PGA870,可5V供电,增益可调范围为–11.5 dB ~+20 dB:您参考下它的数据手册,看是否满足您的要求?
https://www.ti.com/lit/ds/symlink/pga870.pdf
另外我们也有一些专门的音频放大器,但是不是PGA或VGA,通过反馈电阻RF和Rg来配置增益,但是是专用于音频的运放,选型链接如下,您也可以看下: