A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a common-mode filter and a ferrite bead to reduce EMI.
Use a high-quality, low-ESR capacitor (e.g., 10uF ceramic) for power decoupling, and place it as close to the device as possible. Ensure the power supply is clean and regulated, and use a voltage regulator if necessary.
The MAX3272AETP+T supports cable lengths up to 100 meters (328 feet) at a data rate of 100 Mbps. However, the actual cable length may vary depending on the specific application and cable quality.
Use a logic analyzer or oscilloscope to monitor the signal lines and check for errors. Verify the power supply and decoupling. Check the PCB layout and ensure it meets the recommended layout guidelines. Consult the datasheet and application notes for troubleshooting guides.
The MAX3272AETP+T is a IEEE 802.3u-compliant 10/100 Mbps Ethernet transceiver, making it compatible with other IEEE 802.3u-compliant devices. However, compatibility with specific transceivers or PHYs should be verified through testing or consultation with the manufacturer.
MAX3272AETP+T datasheet
by Maxim Integrated Products
