Effective equalization of a high speed differential channel with re-driver - screening and RSM DOE method applied to a real system

The effective equalization settings for a high speed differential channel with re-driver is a complex task, given the large number of silicon variables that can be tuned. Parameter sweep is prohibitive due to the multiple cases that imply a very long execution time. The screening and response surface design of experiments modeling are proposed in this paper as methods to keep the number of test cases to a practical minimum. The successful implementation in two different channels of a real system is shown in this paper. Low execution time and high accuracy of the prediction model are demonstrated.