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TPA6132A2: class D to headpphone transition

Toshiro Imi
Expert 7260 points
Part Number: TPA6132A2

Tool/software:

Hello,

Our customer has a question if TPA6132A2 can handle Audio Class D PWM output signal input.

What this customer would like to do is class D output without LC filter circuit is used as TAS6132A1 IN+/IN-, then drive headphone.

Do you think TPA6132A2 can do that ?

I do think that cannot do that because PWM output is out of common mode voltage range in addition to none analog signal.

Would you have any way to do that, e.g. placing RC filtering on class D out.

If it is impossible, would you happen to know any other appropriate device in our products.

Best regards,.

  • 0
    TI__Mastermind 20351 points

    hi Toshiro

    do you mean you want input class-d output pwm signal to the tpa6132A2, then drive the headphone?

    i am afraid that this ship cannot realized this.

    base on the filtering, our pwm input amp are listed as below. but they are all high power output amps.

    tkx.

    jesse

  • 0 in reply to Jesse Ji
    TI__Expert 7260 points

    Hi Jesse,

    Thank you very much for your feedback.

    Yes. it sems that that is unrealistic. I propose PWM input type of audio amplifier and ask him how to configure his system.

    If I have any other question, I will set up another thread.

    Best regards,