A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital sections separate, and use a ferrite bead or a 10uF capacitor to filter the power supply.
Use a reliable clock source, ensure proper termination of the transmission lines, and implement error detection and correction mechanisms, such as CRC or checksum, to ensure data integrity.
The maximum cable length depends on the specific application and environment. As a general guideline, keep the cable length below 10 meters for reliable communication. Use repeaters or active cables for longer distances.
Use proper shielding, grounding, and filtering techniques to minimize EMI. Ensure that the system meets the relevant EMC standards, such as EN 55022 and EN 55024.
Ensure good airflow around the device, and use a heat sink or thermal pad if necessary. Keep the junction temperature below 125°C to ensure reliable operation.