[SI-LIST] Re: PCI Express 2.0 diff. impedance

Eq

    ----- Original Message -----
    From: Arrigo Benedetti [arrigo@xxxxxxxxxxxxxxxxxxxxxxxxxx]
    Sent: 11/14/2008 04:01 PM PST
    To: si-list@xxxxxxxxxxxxx
    Subject: [SI-LIST] PCI Express 2.0 diff. impedance

I am told that PCI Express 2.0 signals at 5 Gb/s live in an 85 Ohm
differential impedance environment,
however I find no mention of this in the PCI Express Base Specification
Revision 2.0 from the PCI SIG.
Was this requirement dropped at some point?

Thanks

-Arrigo Benedetti

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