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TPA3125D2 and mono input?

Prodigy 20 points

Replies: 2

Views: 978

Hi,

i would to use a TPA3125D2 as a output power guitar amp, but i have mono signal from the preamp, and i would to know if it's possible to drive the TPA3125D2 without audio balanced signal. I know that some chip (TPA3106D1 or TPA3112D1) are mono input, but dip package is easier to solder, and i have not the footprints for TPA3106D1 and TPA3112D1 in ExpressPCB.

I will precise that i won't use a chip as DRV134, i would a "simple" guitar amp.

Thanks for answers

Théophile

PS : sorry for langage, i'm a french with a bad level...

  • Theophile,

    You have two options:

    Build figure 30 and add an op amp to invert your signal to obtain a fully-differential input signal (which is required), OR build figure 29 and just use one channel. The benefit of figure 30 is it will provide 4x the output power!

    -d2

    Best regards,

    Don Dapkus

    Gate Driver Applications

    Dallas, TX USA

     

    We have an excellent training series that can help answer all your questions about our gate drivers. It is indexed so you can jump right to the section you want! You can find it here. A second series focused 100% on Isolated Gate drivers may be found here.

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  • In reply to Don Dapkus:

    Thank you for this answer!

    I gonna use Fig 30 for my amp, and send an other message when it will be finished

    Théophile

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