stk tool for sunplus 82xx Boards
上传时间： 2017-03-17
上传用户：ayfeixiao
img3 for smb8634 Boards
上传时间： 2017-04-20
上传用户：edisonfather
This ebook talk about the technology of flexible circuits, this is a type of printed circuit Boards.
标签： technology circuits flexible circuit
上传时间： 2014-01-02
上传用户：lingzhichao
Leon on Altera Boarsds. This shows how to synthesis leon processor to altera Boards through the use of quartus 3.
标签： processor synthesis Boarsds through
上传时间： 2017-06-04
上传用户：changeboy
These Release Notes describe the functionality of the AudioCodes’ TrunkPack Series Boards and Digital Media Gateways supported by Software Release 4.8. Information contained in this document is believed to be accurate and reliable at the time of printing. However, due to ongoing product improvements and revisions, AudioCodes cannot guarantee the accuracy of printed material after the Date Published nor can it accept responsibility for errors or omissions.
标签： functionality AudioCodes TrunkPack the
上传时间： 2017-08-08
上传用户：wuyuying
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： 2013-10-15
上传用户：busterman
We provide complete power solutions with a full lineup of power managementproducts. This brochure provides an overview of our high performance DC/DC switching regulatorcontrollers for applications including datacom, telecom, industrial, automotive, medical, avionicsand control systems. We make power design easier with our industry-leading field applicationengineering support; a broad selection of demonstration Boards with schematics, layout filesand parts lists; SwitcherCAD® software for simulation, application notes and comprehensivetechnical documentation.
上传时间： 2013-10-15
上传用户：lz4v4
In general, a Hot Swap controller provides two importantfunctions to Boards that can be plugged and unpluggedfrom a live backplane:
上传时间： 2013-10-23
上传用户：行者Xin
为了提高PCB板制作的效率，改变传统的化学腐蚀制板工艺，使用机械仿形铣制作电路板的方法，设计了以ATMEGA16单片机为核心部件的PCB板雕刻机控制系统。其中包括PCB雕刻机的基本功能、主要硬件电路设计和软件的实现流程，并给出了相关设计电路。重点分析了雕刻机步进电机的驱动电路以及主轴电机的驱动电路，该雕刻机经实际运行，系统工作良好，可有效提高PCB板的制作效率。 Abstract: In order to improve the efficiency of production of PCB board and change the traditional chemical etching plates， using of mechanical copying milling method makes circuit Boards，this paper introduces the PCB engraving machine control system used ATMEGA16 microcomputer as the core components. It includes basic function， the hardware circuit design and software realization process， and gives the corresponding circuit design.It analyses the drive circuit of engrawing machine stepper motor and spindle motor in detail. This engraving machine by practical operation， the system works well， which can effectively improve the production efficiency of PCB board.
上传时间： 2013-10-17
上传用户：liangliang123
Designing Boards with Atmel AT89C51,AT89C52, AT89C1051, and AT89C2051 for Writing Flash at In-Circuit Test. Recent improvements in chips and testers have made it possible for the tester to begin taking over the role tradi-tionally assigned to the PROM program-mer. Instead of having a PROM pro- grammer write nonvolatile memories before assembling the board, the in-cir- cuit tester writes them during in-circuit testing operations. Many Teradyne Z18- series testers are now in use loading code into nonvolatile memories, micro- controllers and in-circuit programmable logic devices. The purpose of this note is to explain how the Z18 approaches the writing task for Atmel AT89C series IC’s, so that designers of Boards using these chips can get the best results.
上传时间： 2013-11-17
上传用户：xiaozhiqban
