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Difference between Mixed mode, standard mode, and differential mode

Question asked by kae on Nov 17, 2017
Latest reply on Nov 17, 2017 by weston_beal



What is the difference between mixed mode, standard mode, and differential mode defined in the HyperLynx Touchstone and Fitted-Poles Viewer. I understand that when looking to insertion loss of certain S-parameter model, I need to convert the S-parameter from standard to mixed mode for evaluating the insertion loss of a SerDes lane, but I don't understand why. Also, for TDR test in time-domain of Touchstone Viewer, only the model in standard mode can be tested. Why is that?