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TLV320AIC3104产生自激问题

Other Parts Discussed in Thread: TLV320AIC3104

我们在使用Codec  TLV320AIC3104时,有以下现象:

1,输入端没有接信号,插入耳机,不会产生噪声

2,当输入端接入信号,不插入耳机,没有自激声音;

3,当输入端接入信号,插入耳机后有严重的自激声音。

信号流程和AC3104寄存器配置表如下图所示

请帮忙分析下具体原因,谢谢!

AC3104的配置表: