Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

  • State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 219 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

PCM2912A: How to realize PTT function

Kailyn Chen
Genius 9560 points
Part Number: PCM2912A

Dear，

One customer need to confirm how to realize the PTT function of PCM2912A. The EVM  user's guide  is connected MUTE pin to SSPND by a switch. If using PTT, it is opposite. How to realize PPT? 

Best regards

kailyn

  • 0
    TI__Mastermind 32715 points

    Hi Kailyn,

    The PCM2912A only supports a half-duplex PTT. The switch you're pointing to only mutes the microphone input without affecting the playback side. If it is suitable to only need PTT for the mic side, then that switch is how you achieve it. For full duplex PTT (meaning when you push the button, the playback is muted) that will require an external controller to realize.

    Best regards,
    Jeff McPherson