IBIS模型的信号完整性研究与仿真应用  

Research and simulation of IBIS model in signal integrity

作　　者：徐文波[1] 保长先 王健[1,2] 

机构地区：[1]杭州电子科技大学电子信息学院,浙江杭州310018 [2]聚光科技(杭州)股份有限公司,浙江杭州310052

出　　处：《机电工程》2011年第1期123-126,共4页Journal of Mechanical & Electrical Engineering

摘　　要：针对IBIS模型的正确应用,提出了快速验证IBIS模型的准确性以及IBIS模型在信号完整性分析中的仿真方案。首先介绍了模型中数据之间的一种隐含联系,能快速检验所获取IBIS模型的正确性;其次对光纤测温系统进行了基于IBIS模型的信号完整性仿真分析,从IBIS模型中提取引脚的输出阻抗进行反射仿真,然后,在相同线宽的条件下,对不同信号间距的两条平行走线进行串扰仿真,确定安全走线间距。实践结果表明,由IBIS模型中提取的信息和仿真得出的结果能够满足高速数字电路设计对信号质量的要求。Aiming at proper application of IBIS model,quickly verifying the accuracy of IBIS model and the simulation program of IBIS model in signal integrity analysis were presented.Firstly,an implicit connection between the data of model was introduced,in order to quickly verify the accuracy of IBIS model;secondly,based on IBIS model,signal integrity simulation and analysis of optic fiber temperature measure system were discussed.After extracting output impedance from IBIS model,the reflection simulation was carried out,and then,under the same line width,the crosstalk simulation was executed at different signal distances,in order to ensure the safety of signal distance.The results indicate that the information extracted from the IBIS model and the result of simulation can satisfy signal quality requirements in high-speed digital circuit design.

关 键 词：高速数字设计 IBIS模型 信号完整性 仿真分析 

分 类 号：TN401[电子电信—微电子学与固体电子学]