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  • TPA3251: TAS3251 vs TPA3251 + DSD1794 for best noise performance

    TI Thinks Resolved
    Part Number: TPA3251 Other Parts Discussed in Thread: TAS3251 , , NE5534 Hello, I have a device streaming 24 bits audio data from an USB source (async mode, USB audio class 2). The amp will be around 100W power, it must be as good as possible (THD…
    • Answered

  • TPA3251: TPA3251 PFFB Question

    Resolved
    Part Number: TPA3251 Tool/software: Hi, I'd like to design a PCB for TPA3251 based on TPA3251 EVM board and apply PFFB. However I have some questions about the PFFB application; - In both SLAA788a and SLAA702 application notes, the opamp input stages…
    • Resolved
    • Answered

  • TPA3251: Current draw - gate drives

    Resolved
    Part Number: TPA3251 Tool/software: HI, The datasheet says that I_Vdd is 40 mA and the gate drive current is 25 mA per full-bridge at 50% duty cycle, therefore 90 mA total for the device. From a power budget standpoint, do I have to account for…
    • Resolved

  • TPA3251: TPA3251 schematic

    TI Thinks Resolved
    Part Number: TPA3251 Hi ti team， Please help check TPA3251 schematic, Thanks! tpa3251低音炮原理图.pdf
    • Answered

  • TPA3251: Overvoltage protection for main audio input pins?

    Resolved
    Part Number: TPA3251 Other Parts Discussed in Thread: PGA2320 , TLV1871 , OPA1656 Tool/software: The datasheet for TPA3251 lists an absolute max for INPUT_X to GND of 7V. I am working to integrate TPA3251 in a solution that will accept line level audio…
    • Resolved
    • Answered

  • TPA3251: TPA3251: TPA3251 has a noise during powering up and down

    Resolved
    Part Number: TPA3251 There is a pop noise during powering up and down, the waveform as below: Yellow: Speaker Green: AMP_NRST Output SE configuration. Noise happens at all output channels. Increase C-start capacitor with 0.82uF in parallel…
    • Resolved

  • TPA3251: TPA3251

    TI Thinks Resolved
    Part Number: TPA3251 TPA3251D2 cannot reduce output noise in SE 2.1 mode. Please listen to the audio file recorded in the attachment. PIN15 C_ We made a lot of adjustments to START, but it was useless. Is there any way to reduce the noise of this…

  • TPA3251: Inconsistency between datasheet and EVM - use of 3.3 ohm resistor

    TI Thinks Resolved
    Part Number: TPA3251 Tool/software: HI, In the datasheet application section (Fig. 25). there is a 3.3 ohm resistor in series with the GVdd pin but in the EVM schematics, the resistor is on the Vdd pin instead. Which is correct? Thanks!
    • Answered

  • TPA3251: TPA3251 on 2 Ohm load

    Resolved
    Part Number: TPA3251 Other Parts Discussed in Thread: TPA3221 Hello, in an audio amplifier we would like to use the TPA3251 in BTL configuration in order to have 2x120W on two 2 Ohm loads. We read on the datasheet that with the specific resistor value…
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    • Answered

  • TPA3251: MLCC capacitors for DC blocking

    Resolved
    Part Number: TPA3251 Tool/software: Hi, The EVM uses 10uf, XR7 capacitors for DC blocking in the signal path on the input side. A few questions come to mind: Are these detrimental to signal fidelity? Can one do better? Why are they in a 1206 package…
    • Resolved

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