What are the PCB routing considerations for PI3L301D?
In order to reduce the return loss, the PI3L301D switch needs to be populated between the PHY transceiver and the termination resistors, as close to both the PHY transceiver and the termination resistors as possible, less than 3mm if feasible. The traces between the PHY transceiver, the switch, the magnetic and the RJ-45 need to be as short as possible, and are with 100-ohm differential impedance.
