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39

  • ProE-2000i-工业造型设计教程-289页-39.5M.pdf

    专辑类-Pro-E教程及相关资料专辑-134册-38.9G ProE-2000i-工业造型设计教程-289页-39.5M.pdf

    标签: ProE 2000 39.5 289

    上传时间: 2013-07-16

    上传用户:88mao

  • Illustrator.CS.从入门到精通-419页-39.8M.pdf

    专辑类-多媒体相关专辑-48个-11.7G Illustrator.CS.从入门到精通-419页-39.8M.pdf

    标签: Illustrator 39.8 419

    上传时间: 2013-07-16

    上传用户:思琦琦

  • 传感器与执行器大全-2003-2004年卷-806页-39.2M.pdf

    专辑类-传感器专辑-87册-901M 传感器与执行器大全-2003-2004年卷-806页-39.2M.pdf

    标签: 2003 2004 39.2 806

    上传时间: 2013-07-13

    上传用户:wanqunsheng

  • 第1卷-现代机械设计方法 1019页 39.6M.pdf

    资料->【F】机械结构->【F1】机械丛书->中国机械设计大典 (共6卷)->第1卷-现代机械设计方法 1019页 39.6M.pdf

    标签: 1019 39.6 机械

    上传时间: 2013-07-16

    上传用户:llandlu

  • 39种电子元件检验要求

    基础电路设计必备,39种电子元件检验要求 。

    标签: 电子元件

    上传时间: 2013-11-04

    上传用户:脚趾头

  • 信号完整性知识基础(pdf)

    现代的电子设计和芯片制造技术正在飞速发展,电子产品的复杂度、时钟和总线频率等等都呈快速上升趋势,但系统的电压却不断在减小,所有的这一切加上产品投放市场的时间要求给设计师带来了前所未有的巨大压力。要想保证产品的一次性成功就必须能预见设计中可能出现的各种问题,并及时给出合理的解决方案,对于高速的数字电路来说,最令人头大的莫过于如何确保瞬时跳变的数字信号通过较长的一段传输线,还能完整地被接收,并保证良好的电磁兼容性,这就是目前颇受关注的信号完整性(SI)问题。本章就是围绕信号完整性的问题,让大家对高速电路有个基本的认识,并介绍一些相关的基本概念。 第一章 高速数字电路概述.....................................................................................51.1 何为高速电路...............................................................................................51.2 高速带来的问题及设计流程剖析...............................................................61.3 相关的一些基本概念...................................................................................8第二章 传输线理论...............................................................................................122.1 分布式系统和集总电路.............................................................................122.2 传输线的RLCG 模型和电报方程...............................................................132.3 传输线的特征阻抗.....................................................................................142.3.1 特性阻抗的本质.................................................................................142.3.2 特征阻抗相关计算.............................................................................152.3.3 特性阻抗对信号完整性的影响.........................................................172.4 传输线电报方程及推导.............................................................................182.5 趋肤效应和集束效应.................................................................................232.6 信号的反射.................................................................................................252.6.1 反射机理和电报方程.........................................................................252.6.2 反射导致信号的失真问题.................................................................302.6.2.1 过冲和下冲.....................................................................................302.6.2.2 振荡:.............................................................................................312.6.3 反射的抑制和匹配.............................................................................342.6.3.1 串行匹配.........................................................................................352.6.3.1 并行匹配.........................................................................................362.6.3.3 差分线的匹配.................................................................................392.6.3.4 多负载的匹配.................................................................................41第三章 串扰的分析...............................................................................................423.1 串扰的基本概念.........................................................................................423.2 前向串扰和后向串扰.................................................................................433.3 后向串扰的反射.........................................................................................463.4 后向串扰的饱和.........................................................................................463.5 共模和差模电流对串扰的影响.................................................................483.6 连接器的串扰问题.....................................................................................513.7 串扰的具体计算.........................................................................................543.8 避免串扰的措施.........................................................................................57第四章 EMI 抑制....................................................................................................604.1 EMI/EMC 的基本概念..................................................................................604.2 EMI 的产生..................................................................................................614.2.1 电压瞬变.............................................................................................614.2.2 信号的回流.........................................................................................624.2.3 共模和差摸EMI ..................................................................................634.3 EMI 的控制..................................................................................................654.3.1 屏蔽.....................................................................................................654.3.1.1 电场屏蔽.........................................................................................654.3.1.2 磁场屏蔽.........................................................................................674.3.1.3 电磁场屏蔽.....................................................................................674.3.1.4 电磁屏蔽体和屏蔽效率.................................................................684.3.2 滤波.....................................................................................................714.3.2.1 去耦电容.........................................................................................714.3.2.3 磁性元件.........................................................................................734.3.3 接地.....................................................................................................744.4 PCB 设计中的EMI.......................................................................................754.4.1 传输线RLC 参数和EMI ........................................................................764.4.2 叠层设计抑制EMI ..............................................................................774.4.3 电容和接地过孔对回流的作用.........................................................784.4.4 布局和走线规则.................................................................................79第五章 电源完整性理论基础...............................................................................825.1 电源噪声的起因及危害.............................................................................825.2 电源阻抗设计.............................................................................................855.3 同步开关噪声分析.....................................................................................875.3.1 芯片内部开关噪声.............................................................................885.3.2 芯片外部开关噪声.............................................................................895.3.3 等效电感衡量SSN ..............................................................................905.4 旁路电容的特性和应用.............................................................................925.4.1 电容的频率特性.................................................................................935.4.3 电容的介质和封装影响.....................................................................955.4.3 电容并联特性及反谐振.....................................................................955.4.4 如何选择电容.....................................................................................975.4.5 电容的摆放及Layout ........................................................................99第六章 系统时序.................................................................................................1006.1 普通时序系统...........................................................................................1006.1.1 时序参数的确定...............................................................................1016.1.2 时序约束条件...................................................................................1066.2 源同步时序系统.......................................................................................1086.2.1 源同步系统的基本结构...................................................................1096.2.2 源同步时序要求...............................................................................110第七章 IBIS 模型................................................................................................1137.1 IBIS 模型的由来...................................................................................... 1137.2 IBIS 与SPICE 的比较.............................................................................. 1137.3 IBIS 模型的构成...................................................................................... 1157.4 建立IBIS 模型......................................................................................... 1187.4 使用IBIS 模型......................................................................................... 1197.5 IBIS 相关工具及链接..............................................................................120第八章 高速设计理论在实际中的运用.............................................................1228.1 叠层设计方案...........................................................................................1228.2 过孔对信号传输的影响...........................................................................1278.3 一般布局规则...........................................................................................1298.4 接地技术...................................................................................................1308.5 PCB 走线策略............................................................................................134

    标签: 信号完整性

    上传时间: 2014-05-15

    上传用户:dudu1210004

  • Medwin v2.39,51单片机开发利器

    Medwin v2.39,51单片机开发利器

    标签: Medwin 2.39 51 单片机开发

    上传时间: 2015-02-10

    上传用户:youmo81

  • VC知识库在线杂志39

    VC知识库在线杂志39

    标签: 知识库

    上传时间: 2013-11-29

    上传用户:牧羊人8920

  • 一个条码生成程序及源程序 带算法 39条码 EAN13条码- A bar code production procedure and source program belt algorithm 39

    一个条码生成程序及源程序 带算法 39条码 EAN13条码- A bar code production procedure and source program belt algorithm 39 bar codes EAN13 bar code ,Delphi,GDI/

    标签: production algorithm procedure program

    上传时间: 2013-12-30

    上传用户:xiaohuanhuan

  • 《SoC单片机实验、实践与应用设计》书中的实验39

    《SoC单片机实验、实践与应用设计》书中的实验39,即RTL8019A+8051实现TCP/IP的源代码。

    标签: SoC 单片机实验 实践 应用设计

    上传时间: 2015-10-05

    上传用户:huql11633