[SI-LIST] Re: why eye crosspoint offset

How about asymtric drive and or slew between 
rise and fall.  You didn't provide the eye diagrams
but that would explain a cross point excursion.

Do you see this in simulations

MG

-----Original Message-----
From: qzheng [mailto:qzheng@xxxxxxxxxxxxxxxx]
Sent: Friday, August 30, 2002 2:35 AM
To: si-list
Subject: [SI-LIST] why eye crosspoint offset



Hello si-list,

     I have observed a eye diagram which crosspoint is about at 25%-30% ,

     which is a elvds interface running at 2.5g and we probe the P or N
separately .

     we have use tek800 and angilent86100 have see the similar result
     

     So what problems would cause the eye cross at %30 ?

     what result would be reduced ???


  thank for any advices


-- 
Best regards,
 qzheng                          mailto:qzheng@xxxxxxxxxxxxxxxx

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