[ICC] How should Ethernet Trans Center tab design circuits!

Project description

Hello! I'm Alan. I made a topic because there was a circuit I wanted to study briefly while designing and debugging an Ethernet chip. This is the circuit. W5300-ToE-Shield was designed, debugged, and discovered. It can be seen that the CT of the Trans is fitted with a damping resistor (R31). This is a simple circuit used for many other companies' chips, not just for Wiznet's Ethernet chip. It is usually short to 0 ohms or equipped with a 10-ohm resistor. In this design, it is equipped with 10 ohms for damping resistance. At first, I was very embarrassed because the link LED blinked every 1.5…