高速PCB板的信号完整性设计

随着集成电路开关速度的提高以及PCB板密度的增加，信号完整性问题已成为高速PCB设计必须关注的问题之一。如何在高速PCB设计过程中充分考虑信号完整性因素，并采取有效的控制措施，已经成为当今系统设计能否成功的关键。此文在充分考虑SI的基础上，利用Cadence的Allegro完成了基于DSP和FPGA的某信号处理机的硬件设计，并使用Mentor公司的Hyperlynx进行仿真分析优化PCB设计，避免了信号完整性的潜在影响。

Signal Integrity Designs of High-Speed PCB

With the increase of integrated circuit switch rate and PCB density, signal integrity has become one of the problems must be concerned in high-speed PCB design. How to fully consider SI and take effective measures has been a key factor of a system design. Based on the consideration of SI, I finished a PCB design of a signal processor with the help of Allegro tools, and used the simulator of Hyperlynx to optimize the PCB design, successful escaped the influence of SI.