[SI-LIST] PCIe Impedance
- From: <npatel@xxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Wed, 17 Mar 2010 15:56:49 -0600
Hi all,
PCIe base spec specifies differential impedance to be in the range of
80-120 (100ohms nominal). PCIe Electromechanical spec calls out 68 to
105 (~86ohms).
Does anyone know which is correct? I have heard the general practice is
to use 85ohms.
Thanks,
Nikhil
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