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2013年
5期
52-54,96
,共4页
IBIS%反射%串扰%仿真%PCB
IBIS%反射%串擾%倣真%PCB
IBIS%반사%천우%방진%PCB
IBIS%reflection%crosstalk%simulation%PCB
随着高速电路快速发展，板级信号完整性问题越来越突出。针对高速数字电路反射与串扰问题，本文分析产生问题原因，并提出相应改善措施。最后，借助Cadence工具及IBIS模型对核电数字化保护系统控制卡关键通信网络进行仿真分析，验证方法的合理性。结果表明：合理的并联端接匹配能有效解决反射问题，恰当的地线隔离和线间距调整能有效降低串扰影响，对指导PCB设计具有积极的现实意义。
隨著高速電路快速髮展，闆級信號完整性問題越來越突齣。針對高速數字電路反射與串擾問題，本文分析產生問題原因，併提齣相應改善措施。最後，藉助Cadence工具及IBIS模型對覈電數字化保護繫統控製卡關鍵通信網絡進行倣真分析，驗證方法的閤理性。結果錶明：閤理的併聯耑接匹配能有效解決反射問題，恰噹的地線隔離和線間距調整能有效降低串擾影響，對指導PCB設計具有積極的現實意義。
수착고속전로쾌속발전，판급신호완정성문제월래월돌출。침대고속수자전로반사여천우문제，본문분석산생문제원인，병제출상응개선조시。최후，차조Cadence공구급IBIS모형대핵전수자화보호계통공제잡관건통신망락진행방진분석，험증방법적합이성。결과표명：합리적병련단접필배능유효해결반사문제，흡당적지선격리화선간거조정능유효강저천우영향，대지도PCB설계구유적겁적현실의의。
With the rapid development of high-speed digital circuit,signal integrity of board-level interconnect has become increasingly vital.Aiming at resolving reflection and crosstalk in high-speed digital circuits,the paper analyzes the causes of problems,and gives related solutions to improve signal integrity for systems.This paper also finishes reflection and crosstalk simulations for key interconnect network of nuclear power digital protection system control er by Cadence tool and IBIS models,and verifies the effectiveness of the method.The results show that proper termination,ground isolation and line spacing can improve SI.
