High-speed Serial Backplane Design Based On PXIe Bus

Today, IT industry crackles with the dynamics of change and develops veryquickly. Big data and large storage will become the mainstream of data communicationin the future, creating a fast, large-capacity data transmission channel becomes the keyof the electronic system. The integration technology and interconnection technologydevelop rapidly in recent years, new serial technology, chip technologies are emerging,which provides a premise for the realization of high-speed circuit and reliableinterconnection to meet the high-speed data transmission. For constant pursuit ofhigh-speed, lots of signal integrity problems are unavoidable when high-speed signal ispropagated on the circuit board. So how to deal with these high-speed interconnectsignal integrity problems, is a major challenge for designers today during thehigh-speed circuit interconnect design, and is also the major dilemma encountered bythe high-speed circuit design.This project researched the characteristics of the PXIe high-speed backplane, andits signal integrity problems. This article begins with an overview of the high-speedcircuit theory and signal integrity knowledge, then introduced common signal integrityproblems in high-speed circuit design, and analyzed their formation mechanism. Afterthat we described the design and simulation of high-speed PXIe backplane, and havedone a detailed analysis of the simulation results.The focus of this article is the design and simulation of high-speed PXIebackplane. Signal integrity problems in high-speed circuit were discussed. In thedesign section, we used the Cadence which is the industry-leading EDA tools to makeschematic drawing and PCB layout. The simulation part we made use of the industryadvanced series of Ansoft simulation tools, at the same time，Simulation results andanalysis are given. Through the principle of the backplane design, simulation andanalysis results, this paper summarizes the high-speed backplane signal integrityproblems encountered in the design process and solutions or measures.