[SI-LIST] Re: SPECCTRAQuest: DC level shift with series caps
- From: "Sanchez, Louis" <louis.sanchez@xxxxxxxxx>
- To: "'hassan@xxxxxxxx'" <hassan@xxxxxxxx>, si-list@xxxxxxxxxxxxx
- Date: Wed, 13 Mar 2002 08:54:53 -0800
Hello Hassan............
It will take several pulses before you see the expected results in an AC
coupled network. I believe that you are dealing with the initial condition
of time it takes for all storage elements (capacitors) to reach equilibrium.
I suggest that you lengthen the period of your analysis in the Preferences
section of SigXplorer.
Lou A. Sanchez
-----Original Message-----
From: Hassan O. Ali [mailto:hassan@xxxxxxxx]
Sent: Wednesday, March 13, 2002 6:49 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] SPECCTRAQuest: DC level shift with series caps
Hi All,
I'm trying to use SigXplorer to simulate a link with a differential
driver and series DC-blocking caps. Contrary to expectations,
single-ended P and N outputs measured at the load are not centered
around 0V DC, instead each one is given a separate DC shift. When I
remove the series caps, the output is as expected - centered around 0V
DC.
Does anybody know what I can do to have the correct single-ended outputs
with the series caps?
Thanks.
Hassan.
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