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Simulators >> Circuit Simulators >> Measurement of ground bounce and impedance of RLC network
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Message started by ValarMorghulis on Dec 19^th, 2017, 3:38pm

Title: Measurement of ground bounce and impedance of RLC network
Post by ValarMorghulis on Dec 19^th, 2017, 3:38pm

Hi all,

I am trying to measure the effect of power gating on the substrate noise. In other words, I want to measure the amount of ground bounce through SPICE simulation. Initially, I am planning to use lumped RLC model (attached picture) to mimic the ground network.

Now I have two questions:

1) Is that the correct approach to measure the ground bounce? If not what are the methods I should use?

2) I also want to measure the impedance of the power distribution network using this lumped RLC model for different switching activity of load circuits. I am not quite sure how to achieve this. For example: how can I get impedance vs frequency characteristics using the lumped RLC model I am using?

Please let me know if you have any question.

Thank you for your time and help.