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TLV320AIC3110 noise issue

One of my customer is using AIC3110 in their product, but meet below noise issue.

Anyone can help to share your comments? Thanks in advance!

1)      There is noise in audio recorded.

2)      If close to MIC, noise level is relative good, but if just move away a little bit (such as 20cm), there is very big noise and can’t recognize what want to be recorded.