I am trying to carry out crosstalk analysis on 3 sets of differential pairs, going between three different boards. I am currently using HSPICE models to simulate the connectors.
When I carry out a interactive simulation without the crosstalk option enabled, I seem to get the expected signals.
However, when I enable the crosstalk option, the results are not as expected
The top set of traces of the attached image are with crosstalk disabled & the bottom set with crosstalk enabled.
Any ideas as to why this is happening?