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 common ground point for the analog and digital grounds. Use short, direct traces for the high-frequency signals, and avoid vias and right-angle bends.
Use a high-quality, low-ESR capacitor (e.g., 10uF ceramic) for decoupling, placed as close as possible to the device's power pins. Ensure the power supply is stable and well-regulated, with minimal noise and ripple. Use a separate power plane for the device, and avoid sharing it with other components.
Use a 100Ω differential termination resistor (e.g., 0402 or 0603 package) connected between the differential output pins (e.g., OUT+ and OUT-). This ensures proper signal integrity and minimizes reflections.
Consult the datasheet and application notes for guidance on optimizing the device's performance for your specific application. Consider factors such as input signal amplitude, frequency, and impedance, as well as output load and termination. Use simulation tools and/or prototyping to fine-tune the design.
The MAX9374AEKA+T has a maximum junction temperature (TJ) of 150°C. Ensure good airflow and thermal conduction in the system design. Use a thermal pad or heat sink if necessary, and avoid blocking airflow around the device. Monitor the device's temperature and adjust the system design accordingly.
MAX9374AEKA+T datasheet
by Maxim Integrated Products
