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TPA2011D1: Input pin configuration

Kei Kuwahara
Expert 5550 points
Part Number: TPA2011D1

Hello team,

My customer is trying to use TPA2011D1 with the configuration as Figure 31 on the datasheet.

However, the IN+ is connected instead of IN-. Is this configuration correct?

Shouldn't it be IN- connected to GND?

The EVM is configured with jumper option with IN- connection with GND as below.

Best Regards,

Kei Kuwahara

  • +1
    TI__Guru** 100965 points

    Hi Kei,

    In general, the inverting input configuration of any amplifier provides the best performance in terms of stability. So the general recommendation is to use inverting input as signal input and connect non-inverting input to GND. However, for most speaker loads and audio content use cases, TPA2011D1 performance would be pretty much similar regardless of inverting or non-inverting input.

    Best regards,
    -Ivan Salazar
    Applications Engineer

  • 0 in reply to Ivan Salazar
    TI__Expert 5550 points

    Hi Ivan-san,

    Thank you for your reply.

    The issue has fixed. The customer was making a bad solder connection.

    Best Regards,

    Kei Kuwahara