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你好,能否将电路上传看看,单单从框图看不出什么问题,另外,PCM1808只是一颗ADC,有可能问题是由于输出级功放导致的,建议先排查问题是由于哪颗器件出问题的。可以在AP上将I2S输入进去,看看还有没有问题。