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TLV320ADC3140: TLV320ADC3140: only one ADC record data

Part Number: TLV320ADC3140


There are 2 TLV320ADC3140 adc on our board,

We want to config the it with TDM mode(16bit, sampleRate is 48KHZ, 16 channels).

According to our design, we want to capture 16chs audio data.

However, according to the data we have obtained, only 8 CHs have audio data,

What are the possible causes of this problem?

Thank you!