A good thermal design should be used to ensure the device operates within the recommended temperature range. A minimum of 2oz copper thickness is recommended, and thermal vias should be placed under the device to dissipate heat efficiently.
To ensure EMC, follow proper PCB design guidelines, use a shielded enclosure, and ensure proper grounding and decoupling of the device. Additionally, use a common-mode choke and ferrite beads to filter out electromagnetic interference.
The recommended power-up sequence is to first apply the analog supply voltage (VCC) and then the digital supply voltage (VDD). This ensures that the analog circuitry is powered up before the digital circuitry.
Use a logic analyzer or oscilloscope to monitor the device's signals and verify that the input signals are correct. Check the power supply voltages and ensure that they are within the recommended range. Also, verify that the device is properly configured and that the correct firmware is loaded.
The maximum allowed power dissipation for the TDA8922CTH/N1,112 is 2.5W. Exceeding this limit can cause the device to overheat and potentially fail.