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Original question:

TPA2016D2: Mono Application TPA2016D2

TPA2016D2: Audio forum

Ronald Kabler
Prodigy 10 points
Part Number: TPA2016D2

I'm working with a third party that has already completed PCB layout for a mono application.  This layout has single-ended input with INL- and INR- grounded through capacitors and INL+ and INR+ connected through capacitors in parallel to the audio source.  On the output, OUTL+ and OUTR+ are connected together and also connected to one side of the speaker (parallel).  OUT- and OUTR- are both grounded, as is the other side of the speaker.  Will this work?  Will this potentially damage the TPA2016?  I note from an earlier question that it is recommended to connect a speaker directly across one of the outputs without grounded for the mono application.

  • 0
    TI__Guru** 103725 points

    Hi Ronald,

    The speaker connection described suggest a PBTL output (Parallel Bridge Tied Load), which this device does not support.
    As you mentioned, it is recommended to drive the speaker using only one of the outputs. Shorting the output from both channels may not damage the device, but it'll neither have the desired increased output drive.

    Best regards,
    -Ivan Salazar
    Applications Engineer