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Stereo class-D speaker amp with independent gain control for each channel

K.Yaita
Guru 29720 points

Other Parts Discussed in Thread: TPA2026D2, TPA2012D2, TPA2016D2, TPA2011D1

Hi Team,

Does TI have stereo class-D speaker amp that meeets the following requirement?
Independent gain control for each channel is also required.
---------------------------------------
- Vin: 3.2~4.2V (Li-ion battery 1cell)
- Stereo class-D, analog input
- Independent gain control for each channel
- output power: 0.7W@8ohm + 0.3W@8ohm
---------------------------------------

Best Regards,
Yaita / Japan disty

  • 0
    TI__Mastermind 20085 points
    Hi K.Yaita,

    You can have a look at the following devices: TPA2012D2, TPA2016D2, and TPA2026D2.
    TPA2012D2 has independent shutdown control pins for each channel and the other ones have independent software shutdown controls for each channel. All the other requirements are covered too.

    Best Regards
    José Luis Figueroa
    Audio Applications Engineer
  • 0 in reply to José Luis
    Guru 29720 points

    Hi Jose-san,

    I think these devices don't have "Independent gain control for each channel".
    The background of the question is my customer wants to set different gain for each channel.

    I suggested monoral speaker amp like TPA2011D1x2 to my customer but wants to confirm if there is stereo amp that meets above. 

    Best Regards,
    Yaita

  • 0 in reply to K.Yaita
    TI__Mastermind 20085 points
    Hi Yaita-san,

    Sorry for the confusion.
    Unfortunately, we don't have a stereo audio amplifier with independent gain control for each channel, but as you mentioned they can use two TPA2011D1.

    Best Regards
    José Luis Figueroa
    Audio Applications Engineer
  • 0 in reply to José Luis
    Guru 29720 points

    Thank you Jose-san, I understand!

    Best Regards,
    Yaita