somisetty wrote on Jan 25th, 2010, 2:04am:pls find the file... "prbs.tr0" in prbs.rar
As I expected, there is no issue related to design in your post at all.
Your question is no more than easy usage of very specific vendor's tool.
Please post such questions to Simulator's Board not to Design's Board.
I verified your data("prbs.tr0") by Agilent ADS Post Processing Environment.
I found that a bit rate of your PRBS is 1/83nsec=
12.0482Mbps not 12.0Mbps.
Attached figure is conventional plot from your data("prbs.tr0").