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Analog Audio signal to PWM converter

kiran kumar D A
Prodigy 155 points
Other Parts Discussed in Thread: TAS5622A, TAS5611A, TPA2008D2

Dear sir, am looking an class D TAS5622A amplifier IC, but it requires an PWM input Signal, but in MP3 player or in mobiles, output will be an analog. how can i convert the signal to pwm. please suggest me.

thanks

kiran

  • 0
    TI__Guru 57800 points

    Hi Kiran,

    I would recommend you to tale a look to the TAS5611A, this device has analog inputs and offers the same power performance of the TAS5622A.

    If you want to use TAS5622A, you may need to add an ADC to convert the analog input to digital audio, then a PWM modulator that will convert digital audio into PWM output for the amplifier.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer

  • 0 in reply to Diego Melendez
    Prodigy 155 points

    Dear sir,

    In some posts, i read an tpa2008d2 can be used for an pre amplifier for tas5622A, is it possible to interface or not?, please replay to me sir.

    Thanks & Regards

    Kiran