This document is a Design Guide for WIZnet Chip to be used for PCB. It contains reference for PCB design using W5100, W5300, W5500, W7100A, W7500, and W7500P. Contents of MDI (Medium-dependent interface) signal, power supply, parts placement, MII (Media Independent Interface), etc. are included and you must follow the instructions below. If you do not follow the instructions, you are likely to experience degraded Ethernet performance.
|D||6mil||-||12mil||TX+/- and RX+/- Trace thickness, ex) 8mil|
|L||-||-||10mil||Distance between +/- Differential signal, ex) 4mil|
|W||20mil||-||-||Distance between TX+/- and RX+/- signals, ex) 30mil|
|K||20mil||-||-||Distance between TX+/- and RX+/- signals and others & power, ex) 30mil, separate by GND.|