[SI-LIST] : USB differential lines.

Laurent BERNARD (l.s.bernard@usa.net)
Wed, 30 Sep 1998 14:22:03 +0200

Hello SI experts,

I am designing a PCB which should use differential lines for USB.

I am a little bit confused by Intel data on the USB. The Single Ended
impedance should be 45 Ohms, the Differential impedance should be
90 Ohms to match the cable impedance if I have well understund.