Saturday, September 14, 2024

Ethernet PHY - Length Matching

Ethernet PHY PCB Design Layout Checklist

The total length of each MDI trace should be less than 2 inches, or 2000 mils

The traces should be lengthmatched within 20 mils for 1G transmissions and within 50 mils for 100M or 10M transmissions. 

The number of vias and stubs on the MDI traces should be kept to a minimum.

The traces should be length- matched within  . . . 

20 mils for 1G transmissions

50 mils for 100M or 10M transmissions.

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