Calculation of the Worst-Case Data Patterns and Eye Diagram for Nonlinear High-Speed Links

In this letter, a detailed estimation scheme for determining the worst-case patterns and the worst-case eye diagram based on the multiple-edge responses (MER) is presented. A matrix is built to track the worst accumulated intersymbol interference voltage. The detailed calculation process is derived using a second-order MER example. The accuracy and efficiency of the method are verified by simulations and measurement for nonlinear high-speed links. The presented method provides an efficient and accurate estimation of the worst-case eye diagram for nonlinear links.