TLV320ADC3101-Q1: reference register setting for digital mic input

Shinji Tsuji

Genius 12338 points

Part Number: TLV320ADC3101-Q1
Other Parts Discussed in Thread: TLV320ADC3101

Hi team,

Could you give me the reference register setting for my use case below?

I am trying to connect digital mic to TLV320ADC3101 and output I2S at BCLK=3.072MHz.

Digital microphone is monoral PDM output. sampling edge : falling edge

I would like to know all the related register settings for above use case.

regards,

0 Steve-Wilson over 3 years ago

Shinji,

are you using the EVM? or your own board. If your own board, what is the MCLK frequency? What frequency do you want the PDM_CLK to be?

I assume your Fs is 48khz? Have you looked at the EVM GUI software?

best regards,

-Steve Wilson

0 Shinji Tsuji over 3 years ago in reply to Steve-Wilson

Hi Steve,

I am using EVM connecting in between external EVM and MCU. External MCU sends BCLK and WCLK then receive data from DOUT.

I am looking the EVM GUI software, but not sure my setting is correct or not.

So I would like to have reference setting.

I sent you separate email for more detail in excel file. Is that possible to discuss offline?

regards,

0 Steve-Wilson over 3 years ago in reply to Shinji Tsuji

Shinji

here is a folder of digital microphone examples for the ADC3101. Im not sure what your MCLK is or your desired Fs... so hopefully this is helpful.

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