Abstract:

PDA algorithm proposed by Casper introduces an accurate method of modeling the performance of high-speed chip-to-chip signaling systems.In this paper,in order to solve the problem of eye diagram simulation with long pseudo-random bit stream,this algorithm is used to model the system and calculate worst-case bit patterns and eye diagram quickly,thus realizing the worst-case bit patterns and eye diagram of DQ data.

Key words: pseudo-random data;PDA;eye-diagram;DQ;bit patterns