基于信号完整性的万兆通信系统的优化设计  

Optimized Design of 10 Gigabit Communication System Based on Signal Integrity

作　　者：李宇飞 马秀碧 冉万宁 LI Yufei;MA Xiubi;RAN Wanning(China Key System&Integrated Circuit Co.,Ltd.,Wuxi 214072,China)

机构地区：[1]中科芯集成电路有限公司,江苏无锡214072

出　　处：《电子与封装》2023年第10期87-91,共5页Electronics & Packaging

摘　　要：随着信息技术的快速发展,万兆以太网在大数据网络传输中扮演着重要的角色,然而其超高的速度使其在设计改进时就必须考虑信号完整性问题。针对万兆以太网卡高速链路的改进设计问题,分析了改进前后高速串行链路的传输特点,并建立了该链路的仿真模型,通过实测眼图对仿真模型进行了验证。对于改进方案的仿真结果,从信号完整性方面进行了分析优化,并投板测试。测试结果表明,改进后万兆以太网卡信号质量与改进前相当,改进方案一次成功,网卡运行稳定,能为用户带来高效、便捷的使用体验。With the rapid development of information technology,10 Gigabit Ethernet plays an important role in the transmission of big data networks.However,its ultra-high speed necessitates signal integrity considerations in the improving design.Aiming at the problem of improving design of high-speed link of 10 Gigabit Ethernet card,the transmission characteristics of high-speed serial link before and after the improvement are analyzed,the simulation model of the link is established,and the simulation model is verified by actual measurement of eye diagrams.For the simulation results of the improved scheme,it is analyzed and optimized in terms of signal integrity,and finally put on board for testing.The testing results show that the signal quality of the improved 10 Gigabit Ethernet card is comparable to that before the improvement.The improvement scheme is successful on the first attempt and runs stably,providing users with an efficient and convenient experience.

关 键 词：信号完整性 高速串行链路 万兆以太网 

分 类 号：TN405.97[电子电信—微电子学与固体电子学]