From: Smith, Norm W ([email protected])
Date: Wed May 17 2000 - 14:31:07 PDT
Tony,
I would recommend you visit http://www.t11.org <http://www.t11.org> and go
to the home page <http://www.schelto.com> of the T11.2 Chair, Schelto Van
Doorn <mailto:[email protected]> of INFINEON TECHNOLOGIES. In
Schelto Van Doorn <mailto:[email protected]> 's, home page you
will find a Math Cad file under the MJS working group. The file contains a
mathematical model for BER prediction based on RJ and DJ variables. When I
played with the model, it showed that the BER is very sensitive to RJ. For
example, increasing the RJ from 10ps to 20ps will dramatically increase your
BER.
Norm Smith
NCR Corp
San Diego
The question is: Given we cannot simulate Random Jitter, how much
margin
do you need to garuntee a very low BER? Can you mathmatically
predict
BER based on a deterministic Jitter Budget?
If you have very small margin let's say 10ps with your deterministic
budget, does that mean you will have a high BER?
--
Anthony C. Sweeney
Field Applications Engineer
LSI Logic Corporation
7585 Ronson Road
San Diego, CA 92111
Ph: 858-467-6980
Fax: 858-496-0548
Pager: 888-961-7562
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