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aic310x在播放模式时,从示波器可以看到有数据输入到音频芯片,芯片输出确什么都没有,耳机却没有声音

aic310x在播放模式时,从示波器可以看到有数据输入到音频芯片,芯片输出确什么都没有,耳机却没有声音,这个可能是什么原因