Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general high-frequency PCB design guidelines, such as keeping the audio signal traces short and away from noise sources, and using a solid ground plane.
The gain setting depends on the input signal level and the desired output power. The TPA6130A2YZHR has a fixed gain of 20dB, but you can adjust the gain by adding external resistors. Consult the datasheet and application notes for guidance on selecting the right gain setting for your specific use case.
The maximum power dissipation of the TPA6130A2YZHR is dependent on the ambient temperature and the thermal resistance of the PCB. According to the datasheet, the maximum power dissipation is 2.5W at 25°C ambient temperature. However, it's essential to perform thermal calculations and consider the specific use case to ensure the device operates within safe limits.
No, the TPA6130A2YZHR is not designed for bridged operation. It's a stereo audio amplifier, and bridging would require a different amplifier configuration. If you need higher power output, consider using a different amplifier or consulting with a Texas Instruments application engineer.
To minimize noise and EMI, use proper PCB layout techniques, such as separating analog and digital signal traces, and using shielding and filtering components. Additionally, consider adding external filters, such as RC filters or ferrite beads, to the audio signal path. Consult the datasheet and application notes for more information on noise reduction techniques.