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TPA6111A2: Connecting mono input to TPA6111A2 stereo amplifier

Part Number: TPA6111A2

Hi,

I'm using TPA6111A2 in the following way, with mono input(Single bulk capacitor) and cascade amplifier configuration. Is this good way to increase the loudness? What is your view point on this?

Regards,

Divya

  • Hi Divya,

    Welcome to e2e.
    A couple things I would comment on the suggested connection:
    - You would still need the feedback resistor from Vo2 to IN2-
    - I would not recommend to drive both headphone speakers by a single output, this would reduce the output drive and the result would probably be the same as not using the device in cascade

    You would still need to evaluate the performance of the device with this connection, since this is out of the specs in the data sheet.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators