CYW20706 adc interface

[duli_3411451]

I saw CYW920706 have an ADC interface,can this ADC be used as analog MIC input?

Another question is if I got an I2s interface Micphone，Can I connect it to CYW920706‘s I2s interface directly？

[BoonT_56]

You should connect the microphone to the I2S bus. If you are using the eval board, then you can connect directly

to the input pin at J22 Pin 7, see below.

WICED Studio Bluetooth Forums

[AnjanaM_61 · Accepted solution]

Hi duli_3411451

Adding to BoonT_56 response.

Please note the I2S clock of CYW20706 can’t be set by the application directly. There is no API allowing the app to control the I2S bus. The FW configures it (as a Source or Sink) during A2DP Stream.

Refer PCM/I2S Clock setting in CYW20706

So if you are using A2DP profile in your application , then only you can connect the I2S codec / Mic to 20706 I2S and make it function.

Also while selecting the codec / Mic please select appropriately. The I2S is always configured for 16 bits per samples, Stereo

Thanks,

Anjana