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TPA2028D1: how can I check output 1kHz sinewave???

taehwan lee
Prodigy 80 points
Part Number: TPA2028D1

Hello I am Luis

Let me ask a question.

I wanna to show TPA2028D1 1kHz sinewave

first input 1kHz sinewave to IN+, IN- and attach RC filter(R-1kohm,  -4.7nF) to OUT+, OUT - but I cannot output 1kHz sinewave ? what's wrong??

how can I fix it??

  • +1
    TI__Guru** 102045 points

    Hi Luis,

    Can you share a scope capture of the resulting signal? Are you still seeing a square wave like signal?
    The cutoff frequency of the RC filter should be OK. If you can share a schematic and show where you're measuring it would help as well.

    Best regards,
    -Ivan Salazar
    Applications Engineer