A good PCB layout practice is to keep the analog and digital grounds separate, use a solid ground plane, and keep the high-frequency signals away from the analog signals. Additionally, use a shielded cable for the USB connection to reduce EMI.
Make sure to follow the power-up sequence specified in the datasheet, and ensure that the VCC and VDD pins are properly decoupled. Also, configure the device using the recommended register settings and ensure that the clock is stable before transmitting data.
Common pitfalls to avoid include not following the recommended PCB layout, not using a common mode filter, not decoupling the power pins properly, and not configuring the device correctly. Additionally, ensure that the device is not overclocked and that the signal integrity is maintained.
Use a logic analyzer or oscilloscope to capture the signal waveforms and check for signal integrity issues. Verify that the clock is stable and that the device is properly configured. Also, check the power supply and decoupling to ensure that the device is properly powered.
The MAX3740AETG+T has a maximum junction temperature of 150°C. Ensure good airflow around the device, and use a heat sink if necessary. Also, ensure that the device is not exposed to high temperatures during reflow soldering or other manufacturing processes.
MAX3740AETG+T datasheet
by Maxim Integrated Products
