TLV320AIC3101: outputs noise

Hi experts

Our customer is using TLV320AIC3101,below is the schmatic,

SCHEMATIC1 _ 33 - Audio.pdf

And found that the outputs have noise

Here is the HPLOUT signal while no sound is sending

Here is the HPROUT signal while no sound is sending

Here is the HPROUT signal while sending a 1kHz sine wave

Is this noise normal ? If not ,is there any method to eliminate this noise?

Thank you very much!

Nick