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Hi Ivan. I'm moving your question to the HyperLynx SI/PI community where it should get a quicker response. Best regards, Cathy
Thanks Cathy, I'm using GTH tranceivers on to Virtex FPGA and I'm afraid that a dirty ground due to CMOS bus switching may affect them, Ivan
The common error in this situation is to look at the net called ground, and not consider it together with the net called power. The current delivery net and the current return nets work together and should be analyzed together. You can do this easily in HyperLynx PI Plane Noise simulation. If you have not used this feature before, here is a good getting-started tutorial.
I did not well understood that the reference of the GND are the underlying power planes.
I use the current spikes produced by the SI analysis as noise model and now all is clear.
Consider the case closed,
Inviato: mercoledì 20 dicembre 2017 18:19
A: Pessina Ivan
Oggetto: Re: - Re: Ground Bounce
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Re: Ground Bounce
reply from weston_beal<https://communities.mentor.com/people/weston_beal?et=watches.email.thread> in HyperLynx SI, PI, Thermal, and EMI/EMC - View the full discussion<https://communities.mentor.com/message/71275?et=watches.email.thread#comment-71275>