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TAS2563: Loop stability test in TAS2563 boost

Part Number: TAS2563

Hi,

As you know, TAS2563 has a integrated boost. I want to know whether TAS2563 boost has loop stability test in your side? If yes, how to do the test? I don't see the feedback pin.

  • Hi Amber,

    The only purpose of the boost in our amplifier is to supply the power stage, and it must not be used to power other external circuits. All boost control happens internally.
    TAS2563 supports different boost modes:

    • Always On: In this case the boost is always boosting the VBAT voltage to the specified "Max Boost Voltage"
    • Class-G or Two-Level Boost: In this mode the boost is off while input signal is low amplitude, once the input signal goes over a specific threshold the boost is enabled and is set to the configured level.
    • Class-H or Multi-Level Boost: In this mode the boost is off while input signal is low amplitude, once the input signal goes over a specific threshold the boost gradually increases the output voltage, depending on how the input signal changes.
    • Always Off: Boots is disabled.

    In addition, our amplifiers feature high PSRR which allows the amplifier to operate at low distortion levels even if boost shows ripple at higher output power levels as long as proper decoupling is implemented. There are design guidelines available in our product folder:

    Best regards,
    -Ivan Salazar
    Applications Engineer