A 4-layer PCB with a solid ground plane and a separate analog ground plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a star topology for the power supply connections and keep the power traces as short as possible.
Use a low-pass filter on the input signals, and consider adding a ferrite bead or a common-mode choke to the power supply lines to reduce noise. Also, ensure that the device is properly decoupled with capacitors and that the PCB layout is optimized for noise reduction.
The maximum power dissipation of the MAX98500EWE+T is 1.4W. To ensure it doesn't overheat, ensure good airflow around the device, use a heat sink if necessary, and keep the device away from other heat sources. Also, ensure that the PCB is designed to dissipate heat efficiently.
Yes, the MAX98500EWE+T can be used in battery-powered devices. To minimize power consumption, use the device's power-down mode, reduce the clock frequency, and optimize the power supply voltage. Also, consider using a low-dropout regulator to minimize power loss.
Use an oscilloscope to measure the output voltages and waveforms. Check the input signals, power supply voltages, and PCB layout for any issues. Consult the datasheet and application notes for troubleshooting guides and common pitfalls to avoid.