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 common-mode choke or a ferrite bead to filter the power supply lines.
The MAX1487ECSA+T requires a power-up sequence of VCC first, followed by VDD. During power-down, VDD should be turned off first, followed by VCC. This ensures that the internal voltage regulators are properly shut down to prevent damage.
The MAX1487ECSA+T supports cable lengths up to 100 meters, depending on the specific application and cable characteristics. However, it's recommended to consult the datasheet and application notes for specific guidance on cable length and signal integrity.
To troubleshoot issues with the MAX1487ECSA+T, first check the power supply voltages and ensure they are within the recommended range. Then, verify that the input signals are correct and within the specified range. Use an oscilloscope to check the output signals and verify that they are correct. If the issue persists, consult the datasheet and application notes for specific troubleshooting guidance.
The MAX1487ECSA+T is rated for operation up to 85°C. However, it's recommended to consult the datasheet and application notes for specific guidance on thermal management and derating the device for high-temperature operation.
MAX1487ECSA+T datasheet
by Maxim Integrated Products
