TLV320ADC3101: SPH6045 digital mic and BT-MSPAUDSOURCE

David Mrozinski

Part Number: TLV320ADC3101
Had a thought on how to hook a SPH0645 digital I2S mic BT-MSPAUDSOURCE. I had a comment yesterday that pointed out I could bypass the TLV320ADC3101 because the mic outputs I2S. I took another look at the schematic for the BT-MSPAUDSOURCE. It appears there are 3 jumpers in the in the traces from pin 1, 2 and 3 of the TLV320. These are DOUT, WCLK and BCLK. With the jumpers removed, it looks like I may be able to connect the mic to the evaluation board at these points. This would connect the I2S mic directly to the MSP430, I think. I would appreciate any thoughts or comments on this approach. Thank you very much for the replies. Dave

over 6 years ago

0 Diego Melendez over 6 years ago

TI__Guru 57800 points

Hi, Dave,

By removing the mentioned jumpers (32, 33, 35) you should be able to hook the DMIC into the BT module directly. in the evaluation board you are using, the MSP device is not receiving audio data from the ADC3101.

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

0 David Mrozinski over 6 years ago in reply to Diego Melendez

Prodigy 60 points

Thanks for the feedback. I have no experience with audio designs and devices so this is helpful.

Dave

Audio

Audio forum

TLV320ADC3101: SPH6045 digital mic and BT-MSPAUDSOURCE