PADS LAYOUT 设计等长方法
上传时间： 2013-10-23
上传用户：jisujeke
PROTEL99中设计规范
标签： PCB
上传时间： 2013-12-15
上传用户：jjq719719
This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on both baseboard and add-in card PCB designs. This includes interconnects between PCI Express devices located on the same baseboard (chip-to-chip routing) and interconnects between a PCI Express device located “down” on the baseboard and a device located “up” on an add-in card attached through a connector. This document is intended to cover all major components of the physical interconnect including design guidelines for the PCB traces, vias and AC coupling capacitors, as well as add-in card edge-finger and connector considerations. The intent of the guidelines and examples is to help ensure that good high-speed signal design practices are used and that the timing/jitter and loss/attenuation budgets can also be met from end-to-end across the PCI Express interconnect. However, while general physical guidelines and suggestions are given, they may not necessarily guarantee adequate performance of the interconnect for all layouts and implementations. Therefore, designers should consider modeling and simulation of the interconnect in order to ensure compliance to all applicable specifications. The document is composed of two main sections. The first section provides an overview of general topology and interconnect guidelines. The second section concentrates on physical layout constraints where bulleted items at the beginning of a topic highlight important constraints, while the narrative that follows offers additional insight.
上传时间： 2014-01-24
上传用户：s363994250
硬件设计，PCB工艺设计规范，文章写得很好，供大家参考
标签： 硬件设计
上传时间： 2015-08-27
上传用户：pompey
sigmatel 设计方案的重要参考，里面有包含软件的设计规范的。
上传时间： 2015-11-23
上传用户：古谷仁美
您可能还不知道终端服务的潜力到底有多大？让我们看看如何设计在终端服务里平稳运行、功能先进的企业应用程序。首先，了解终端服务应用软件的设计规范；其次，研究如何使用终端服务的脚本接口、API与托管代码调用方法；最后，我要介绍一个可以实现灵活定制的库：虚拟通道。 适合听众：企业IT架构师、开发人员 预备知识：终端服务的概念与使用经验，Scripting，Windows开发技能和.NET开发技能
上传时间： 2014-06-25
上传用户：zhoujunzhen
主要介绍一种基于Philips公司的MF RC500的射频识别读写器的设计：首先介绍系统的组成以及MF RC500的特性，接着给出天线的设计规范，最后给出MCU 89C52与MF RC500的接口原理图、对Mifare卡操作流程以及及读卡的程序。
上传时间： 2016-09-24
上传用户：guanliya
华为编程规范，详细介绍了嵌入式软件的设计规范，建议参考！
上传时间： 2014-02-09
上传用户：pkkkkp
本设计对＋5V,+12V低压线性稳压电源的基本电路原理，各器件的参数计算选择，相关技术要求和实际使用中的有关问题进行了阐述。 本设计规范适用于电子设备用小功率低压线性稳压电源电路的设计
上传时间： 2017-01-15
上传用户：cjf0304
较详尽的描述了，PCB设计过程和相关生成过程中的工艺要求。
标签： PCB设计规范
上传时间： 2015-12-01
上传用户：13211893768
