How to get IBIS model for differential LVPECL IO when the generated model from ispLEVER is a single ended model?
The low voltage positive emitter couple logic (LVPECL) interface uses two separate single ended buffers, plus on-board resistors to emulate a differential pair. The input output buffer information standard (IBIS) requires that the models be interconnected in this manner to properly model the interface, so you will need to setup two LVPECL models. One of them should be setup as an inverted model for the complement pin. Also the external resistors should be added to the simulation setup.