TAS5828M datasheet(82/97 Pages) TI

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properly decouple the output power stages in the manner described in the TAS5828M device Application and

Implementation. Lack of proper decoupling, like that shown in the Application and Implementation, results in

voltage spikes which can damage the device.

A separate power supply is required to drive the gates of the MOSFETs used in the output stage of the speaker

amplifier. This power supply is derived from the PVDD supply via an integrated linear regulator. A GVDD pin is

provided for the attachment of decoupling capacitor for the gate drive voltage regulator. It is important to note

that the linear regulator integrated in the device has only been designed to support the current requirements of

the internal circuitry, and should not be used to power any additional external circuitry. Additional loading on this

pin could cause the voltage to sag, negatively affecting the performance and operation of the device.

Another separate power supply is derived from the PVDD supply via an integrated linear regulator is AVDD.

AVDD pin is provided for the attachment of decoupling capacitor for the TAS5828M internal circuitry. It is

important to note that the linear regulator integrated in the device has only been designed to support the current

requirements of the internal circuitry, and should not be used to power any additional external circuitry. Additional

loading on this pin could cause the voltage to sag, negatively affecting the performance and operation of the

device.

TAS5828M

SLASEX7A – JUNE 2021 – REVISED DECEMBER 2021

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TAS5828M Datasheet(PDF) 82 Page - Texas Instruments