A good PCB layout practice is to keep the analog and digital grounds separate, use a solid ground plane, and keep the signal traces short and away from noise sources. Additionally, use a common mode choke or ferrite bead to filter the power supply lines.
Make sure to follow the power-up sequence specified in the datasheet, and ensure that the VCC and VDD pins are properly decoupled with capacitors. Also, configure the device according to the application note and datasheet recommendations.
The MAX3204EETT+T can achieve data transfer rates of up to 1 Mbps, depending on the specific application and configuration.
Use a logic analyzer or oscilloscope to monitor the signal lines and verify that the data is being transmitted correctly. Check the power supply and decoupling, and ensure that the device is properly configured and powered up.
The MAX3204EETT+T is rated for operation from -40°C to +85°C, and can withstand moderate vibration. However, for extreme environments, additional precautions such as conformal coating, potting, or using a ruggedized package may be necessary.