Author Topic: USB trace impedance  (Read 360 times)

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Offline mandorTopic starter

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USB trace impedance
« on: January 06, 2025, 10:18:36 am »
Hello.
Working on a keyboard and want to have usb hub and ports on each side of the keyboard so want to run usb signals on 2-layer board.

trying to get traces right for usb 2.0 and I've read it should be 90ohm differential impedance.

Kicad
2477039-0
allaboutcircuits
2477035-1
digikey
2477031-2
jlcpcb
2477027-3
Either I'm doing something wrong or they are all giving a different result?
 

Offline Terry Bites

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