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18.6

  • 电子电路基础-谢沅清、解月珍编-502页-18.6M.pdf

    专辑类-电子基础类专辑-153册-2.20G 电子电路基础-谢沅清、解月珍编-502页-18.6M.pdf

    标签: 18.6 502 电子

    上传时间: 2013-06-01

    上传用户:lizhen9880

  • 模拟电子技术重点难点及典型题精解-401页-6.3M-PDF版.pdf

    专辑类-电子基础类专辑-153册-2.20G 模拟电子技术重点难点及典型题精解-401页-6.3M-PDF版.pdf

    标签: M-PDF 401 6.3

    上传时间: 2013-06-18

    上传用户:uuuuuuu

  • 农村电工实用技术农用柴油机原理使用及维护-391页-6.5M.pdf

    专辑类-机械五金类专辑-84册-3.02G 农村电工实用技术农用柴油机原理使用及维护-391页-6.5M.pdf

    标签: 391 6.5 农村

    上传时间: 2013-06-17

    上传用户:sz_hjbf

  • 单片机模糊控制系统设计与应用实例-303页-6.4M.pdf

    专辑类-单片机专辑-258册-4.20G 单片机模糊控制系统设计与应用实例-303页-6.4M.pdf

    标签: 303 6.4 单片机

    上传时间: 2013-07-18

    上传用户:xiaoyunyun

  • 匠人手记-122页-6.3M.pdf

    专辑类-单片机专辑-258册-4.20G 匠人手记-122页-6.3M.pdf

    标签: 122 6.3

    上传时间: 2013-06-12

    上传用户:ayfeixiao

  • -单片机外围电路设计-251页-6.9M.pdf

    专辑类-单片机专辑-258册-4.20G -单片机外围电路设计-251页-6.9M.pdf

    标签: 251 6.9 单片机

    上传时间: 2013-06-14

    上传用户:wsx123

  • AT89S/C52,11.0592MHz,DS18B20和6位数码管

    通过AT89S/C52,11.0592MHz,DS18B20和6位数码管,采集温度并在数码管上实时显示。并有相应的不同颜色的led和蜂鸣器指示。同时包括完整的PROTEUS演示,内容完整,为初学者不可或缺的入门资料!2008年4月18号

    标签: 11.0592 MHz AT 89

    上传时间: 2013-09-30

    上传用户:qiao8960

  • Protel DXP2004详细教程

    目录 目录 1 快捷键 2 常用元件及封装 7 创建自己的集成库 12 板层介绍 14 过孔 15 生成BOM清单 16 顶层原理图: 16 生成PCB 17 包地 18 电路板设计规则 18 PCB设计注意事项 20 画板心得 22 DRC 规则英文对照 22 一、Error Reporting 中英文对照 22 A : Violations Associated with Buses 有关总线电气错误的各类型(共 12 项) 22 B :Violations Associated Components 有关元件符号电气错误(共 20 项) 22 C : violations associated with document 相关的文档电气错误(共 10 项) 23 D : violations associated with nets 有关网络电气错误(共 19 项) 23 E : Violations associated with others 有关原理图的各种类型的错误 (3 项 ) 24 二、 Comparator 规则比较 24 A : Differences associated with components 原理图和 PCB 上有关的不同 ( 共 16 项 ) 24 B : Differences associated with nets 原理图和 PCB 上有关网络不同(共 6 项) 25 C : Differences associated with parameters 原理图和 PCB 上有关的参数不同(共 3 项) 25 Violations  Associated withBuses栏 —总线电气错误类型 25 Violations Associated with Components栏 ——元件电气错误类型 26 Violations Associated  with documents栏 —文档电气连接错误类型 27 Violations Associated with Nets栏 ——网络电气连接错误类型 27 Violations Associated with Parameters栏 ——参数错误类型 28  

    标签: Protel 2004 DXP 教程

    上传时间: 2014-03-26

    上传用户:kytqcool

  • 高速PCB基础理论及内存仿真技术(经典推荐)

    第一部分 信号完整性知识基础.................................................................................5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...................................................................................1063.2 高速设计的问题.......................................................................................2093.3 SPECCTRAQuest SI Expert 的组件.......................................................2103.3.1 SPECCTRAQuest Model Integrity .................................................2103.3.2 SPECCTRAQuest Floorplanner/Editor .........................................2153.3.3 Constraint Manager .......................................................................2163.3.4 SigXplorer Expert Topology Development Environment .......2233.3.5 SigNoise 仿真子系统......................................................................2253.3.6 EMControl .........................................................................................2303.3.7 SPECCTRA Expert 自动布线器.......................................................2303.4 高速设计的大致流程...............................................................................2303.4.1 拓扑结构的探索...............................................................................2313.4.2 空间解决方案的探索.......................................................................2313.4.3 使用拓扑模板驱动设计...................................................................2313.4.4 时序驱动布局...................................................................................2323.4.5 以约束条件驱动设计.......................................................................2323.4.6 设计后分析.......................................................................................233第四章 SPECCTRAQUEST SIGNAL EXPLORER 的进阶运用..........................................2344.1 SPECCTRAQuest Signal Explorer 的功能包括:................................2344.2 图形化的拓扑结构探索...........................................................................2344.3 全面的信号完整性(Signal Integrity)分析.......................................2344.4 完全兼容 IBIS 模型...............................................................................2344.5 PCB 设计前和设计的拓扑结构提取.......................................................2354.6 仿真设置顾问...........................................................................................2354.7 改变设计的管理.......................................................................................2354.8 关键技术特点...........................................................................................2364.8.1 拓扑结构探索...................................................................................2364.8.2 SigWave 波形显示器........................................................................2364.8.3 集成化的在线分析(Integration and In-process Analysis) .236第五章 部分特殊的运用...............................................................................2375.1 Script 指令的使用..................................................................................2375.2 差分信号的仿真.......................................................................................2435.3 眼图模式的使用.......................................................................................249第四部分:HYPERLYNX 仿真工具使用指南............................................................251第一章 使用LINESIM 进行前仿真.......................................................................2511.1 用LineSim 进行仿真工作的基本方法...................................................2511.2 处理信号完整性原理图的具体问题.......................................................2591.3 在LineSim 中如何对传输线进行设置...................................................2601.4 在LineSim 中模拟IC 元件.....................................................................2631.5 在LineSim 中进行串扰仿真...................................................................268第二章 使用BOARDSIM 进行后仿真......................................................................2732.1 用BOARDSIM 进行后仿真工作的基本方法...................................................2732.2 BoardSim 的进一步介绍..........................................................................2922.3 BoardSim 中的串扰仿真..........................................................................309

    标签: PCB 内存 仿真技术

    上传时间: 2014-04-18

    上传用户:wpt

  • 【编程实用文档】C51指令表等6张编程实用图表

    【编程实用文档】C51指令表等6张编程实用图表

    标签: C51 编程 文档 指令表

    上传时间: 2013-11-18

    上传用户:fanxiaoqie