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TAS5431Q1EVM: Some questions about the socket

Roy Chou1
Genius 16445 points
Part Number: TAS5431Q1EVM


Hi Team,

This is my first time using the socket. I have some questions below. 

1. What kind of waveform should we input into IN_P and IN_N? I see the application note "SLOA119B".

I'm not sure the relationship between below figure and IN_P and IN_N.

2. In the datasheet, may you let me know why we show the IN_P and IN_N waveform in the chart? Or we don't need to care about it?

Regards,

Roy

  • 0
    TI__Intellectual 1490 points

    Hi Roy,

    1. We only need the differential signal between IN_P and IN_N to be the desired audio analog signal.

    2. IN_P and IN_N are not shown on this chart. We don't need to care about them on this chart.

    Best regards,

    Donny

  • 0 in reply to Donny Peng
    TI__Genius 16445 points

    Hi Donny,

    Thank you. 

    1. May you let me know what kind of part will produce the audio analog signal?

    2. Why we don't need to care about IN_P/IN_N? I consider that OUTP and OUTN result is based on IN_P and IN_N.

    Regards,

    Roy

  • 0 in reply to Roy Chou1
    TI__Intellectual 1490 points

    Hi Roy,

    For example, if you want to play music through computer and TAS5431Q1EVM, you can insert the 3.5 mm headphone jack into jack, then connect the Left/Right and GND on the other end to TAS5431Q1EVM.And when you play music on your computer, the correct audio signals will be added to IN_P/IN_N. The audio signals corresponding to different sounds are different, so we don't need to care about IN_P/IN_N.

    Best regards,

    Donny