基于SI分析的高速数字接口拓扑结构设计基于SI分析的高速数字接口拓扑结构设计.pdf

Hans Journal of Wireless Communications 无线通信, 2014, 4, 99-106 Published Online December 2014 in Hans. /journal/hjwc /10.12677/hjwc.2014.46016 The Topology Structure Design of High Speed Digital Interface Based on Signal Integrity Analysis Jinfu Lou, Fuhong Zhang, Rong Zeng School of Communication Engineering, Hangzhou Dianzi University, Hangzhou Email: tclj163.com th th st Received: Oct. 20 , 2014; revised: Nov. 15 , 2014; accepted: Nov. 21 , 2014 Copyright © 2014 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract In order to further improve the signal integrity in high speed digital interface, this paper firstly introduces several common high speed interconnect topologies and analyzes their advantages and disadvantages briefly. Then this paper also analyzes the signal integrity of high speed interconnect topology between TMS320C0455 and DDR2 (MT47H64M16) using SigXplorer PCB SI and Allegro and explains the design process of pre-simulation by tools of simulation in high speed circuit de- sign. It will be helpful for designers to such high speed interface. Keywords High Speed Interconnect, Topology Structure, Simulation, Signal Integrity 基于SI分析的高速数字接口拓扑结构设计 楼津甫，张褔洪，曾 榕 杭州电子科技大学通信工程学院，杭州 Email: tclj163.com 收稿日期：2014年10月20 日；修回日期：2014年11月15 日；录用日期：2014年11月21 日 99 基于SI 分析的高速数字接口拓扑结构设计 摘 要 为了进一步提高高速数字接口的信号完整性，文章首先介绍了几种常见的高速互连拓扑结构，并对其优 劣进行简要的分析，之后利用Cadence SigXplorer PCB SI 和Allegro 对TMS320C0455 和DDR2 (MT47H64M16)之间的高速接口电路拓扑结构进行信号完整性设计，阐述了高速电路设计过程中利用仿 真工具对PCB进行前仿真的设计流程，以便于开发