Answered

• TPA3251EVM: Outout Inductors and the TPA3251EVM

  

  Jerry Gorman

  Resolved

  Part Number: TPA3251EVM Other Parts Discussed in Thread: TPA3251 While I work at TI I do not work in the Audio Amp group and my post here is to pose few questions. My comments are NOT TI recommendations and I’m not a TI expert on these amps. I’m…

  • Resolved

  • over 1 year ago
  • Audio
  • Audio forum
Answered

• TPA3251: TPA3251EVM Dimensions

  

  Jim Denison

  Resolved

  Part Number: TPA3251 Hello, The user’s guide for the TPA3251EVM shows the length and width (126mm? x 170mm), can you provide the height? Thank you!

  • Resolved

  • over 2 years ago
  • Audio
  • Audio forum

• TPA3251EVM: Clipping detection or overtemperature warning (CLIP_OTW) at very low output power

  

  Juan Romero

  TI Thinks Resolved

  Part Number: TPA3251EVM Hi, The warning LED CLIP_OTW goes ON at very low input and output power. I have run several tests with different loads and the results are the same. With a 4 Ohm load the clipping warning raises with an input signal of 900 mVpp…

  • over 2 years ago
  • Audio
  • Audio forum
Answered

• RE: TPA3255EVM: PFFB implementation using standart EVM board

  

  Sam(MPAA) Zhang

  Resolved

  Hi, TPA3255EVM doesn't have the full PFFB options on board, but you can still do some slightly change on the PCB to implement it. You may take a look at the TPA3251EVM. Thanks! Regards, Sam

  • 10 months ago
  • Audio
  • Audio forum
Answered

• TPA3255: SE to Diff Input Stage Star Ground

  

  Vasiliy Aleksandrovich

  Resolved

  Part Number: TPA3255 Other Parts Discussed in Thread: TPA3251EVM Hello. In this paper "Star" grounding configuration shows significant improvements for THD+N parameter.But as i see, TPA3255 PCB rev.A does not have this feature, however TPA3251EVM does…

  • Resolved

  • 10 months ago
  • Audio
  • Audio forum

• RE: TPA3251D2EVM: TPA3251D2EVM

  

  Robert Clifton56

  Hi Neil, Actually the TPA3251EVM has the AIB connector not the TPA3251D2EVM. We actually do have a few Audio Plug-In Boards, one of them being the SidGig Guitar EVM! Here's the Altium files for the TPA3251EVM. 8662.TPA3251EVM.zip The PMP11769 has…

  • over 1 year ago
  • Audio
  • Audio forum
Answered

• RE: TPA3255EVM: Reducing Noise

  

  Robert Clifton56

  Resolved

  Hi Jerry, Funny you say this. I changed out the NE5532 on the TPA3251EVM a couple of years ago with the OPA1678 device. There should be no problem switching out the op-amps. For the resistors, changing to a 2kohm resistor shouldn't cause any issues. As…

  • over 1 year ago
  • Audio
  • Audio forum
Answered

• RE: class D amplifie Guitar

  

  Robert Clifton56

  Resolved

  Hi Anatoliy, TPA3255EVM, TPA3251EVM, TPA3245EVM, TPA3244EVM, TPA3221EVM and TPA3220EVM are all compatible with the SideGig-Guitar Evaluation Module board! The power supply would have to be one that you have however. Hope this clarifies things. Best Regards…

  • over 1 year ago
  • Audio
  • Audio forum

• RE: TPA3251: TPA3251 output power

  

  Robert Clifton56

  Hi Darren, You can if you include a single-ended to differential op-amp configuration. I'd recommend looking at the TPA3251EVM to see how we do it. Regards, Robert Clifton

  • over 2 years ago
  • Audio
  • Audio forum

• TPA3251: THD vs. Frequency curve

  

  Wiky Liao

  TI Thinks Resolved

  Part Number: TPA3251 Hi Team, I use TPA3251EVM and test its THD vs. freqnency performance, but my test result is really higher than datasheet description, could you help to check if it is normal? thanks. PVDD=36V, SE input, BTL, 4ohm load, output power…

  • over 2 years ago
  • Audio
  • Audio forum

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