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CC85XXDK-HEADSET: microphone problem on Headset dev kit

Jeyaprakash K
Prodigy 180 points

Part Number: CC85XXDK-HEADSET

Hi,

We are using CC85XXDK-HEADSET development kit to evaluate PurePath Wireless technology.

We have two modules, one is master and another is slave. When audio input is given through PC on master board, we could able to hear on the speaker connected on slave board. Vice versa is also working.

But instead of PC audio source if I use external microphone, couldn't able to hear on speaker. I think MICBIAS voltage is already available in this evaluation module. Pls help us to resolve this issue.

Thanks,

Jeyaprakash K

  • 0
    TI__Guru** 106705 points
    Hi Jeyaprakash,

    It seems like the CC85xxDK Headset board is configured to enable mic bias. You might have to change the configuration of the codec though. Refer to the CC85xxDK-Headset users guide as well as the TLV320AIC3204 datasheet for more information.

    Cheers,
    Fredrik