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差分输入耳机放大器单端输入时接地电容接IN+还是IN-

Other Parts Discussed in Thread: INA1620, PCM2912A

正使用INA1620进行设计,音源是PCM2912A,连接INA1620时,是否需要进行单端转差分的设计?有的建议IN-接电容到AGND,IN+接输入,这样接是否正确?还是反过来接。