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https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1286340/pcm1822-can-i-use-something-else-than-analog-digital-mems-microphones
该 ADC 是否专为不同的 MEMS 麦克风信号而设计？ 能否将近场麦克风信号与前置放大器结合使用来为此 ADC 馈电？ 如果没有，风险是什么？
是的、您可以将信号从前置放大器输出交流耦合到 ADC。1V rms 差分信号提供满量程数字数据
