High-Speed Serial I/O Design Using Response Surface Modeling
Response surface modeling (RSM) enables engineers to consider all aspects of a design while only modeling a fraction of all unique possible design variations. Today’s high-speed digital channels, such as PCI Express® (PCIe), encompass so many design variables that solving for every unique combination is not feasible. Response surface modeling provides a statistically based solution to this problem. This application brief shows how a statistical fit is made to model the outputs of a particular design as a function of changes to input variables.