[SI-LIST] Query on Eye-Diagram of RX ADC

  • From: chundi srikanth <chundis@xxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Fri, 6 Nov 2009 18:13:00 +0530

Hi Techies,
I have a question on Eye-diagram. We are having an interface between ADC and
Virtex-5 FPGA. this interface is High-Speed differential interface. Iam
simulating the interface with Hyper Lynx BoardSim. I want to know What are
the things i need to look up in the simulation so that i can say my layout
is fine?

I have generated an eye-diagram using HyperLynx but what exactly it will
tell. As far as my knowledge is concerned an eye-diagram can't tell us that
our impedance matching and our layout is correct. Correct me if iam wrong.

Can you just share me your thoughts on what to observe. Iam new to SI tool
and analysis so please help me in this. Iam also attaching my simulation
results with this mail. Please let me know how to add files as this group is
not allowing pictures to be shared.

Thanks & Regards
Srikanth Chundi



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