[SI-LIST] : USB differential lines.

Laurent BERNARD ([email protected])
Wed, 30 Sep 1998 14:22:03 +0200

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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.

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