ZHCSJA2A January 2019 – March 2019 TPA3255-Q1
PRODUCTION DATA.
The output stage of the amplifier drives the load using the PVDD supply. This is the power supply which provides the drive current to the load during playback. Proper connection, routing, and decoupling techniques are highlighted in the TPA3255 device EVM User's Guide (SLOU441) (as well as the Application Information section and Layout Examples section) and must be followed as closely as possible for proper operation and performance. Due the high-voltage switching of the output stage, it is particularly important to properly decouple the output power stages in the manner described in the TPA3255 device EVM User's Guide (SLOU441). The lack of proper decoupling, like that shown in the EVM User's Guide (SLOU441), can results in voltage spikes which can damage the device, or cause poor audio performance and device shutdown faults.