[SI-LIST] Eye Diagram Question
- From: "Morse, Jeff" <jmorse@xxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Wed, 23 Sep 2009 15:13:45 -0400
Hi,
What would cause an eye digaram to be asymmetric between the left and
right hand sides? I am looking at an eye that has a left hand side that
has a very shallow rise/fall to the respective zero and one levels. The
right hand side has much sharper rise/fall. I understand there are
frequency dependent losses, but I would *think* that would affect both
sides of the eye in the same way. I played with preemphasis in the
driver - but didn't see much effect.
Any ideas what this might be / not be? ISI, reflection, etc?
Thanks,
Jeff
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