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可编程逻辑 pci e PCB设计规范
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 b ...
工控技术 PXI任意波形发生器卡
本卡是一种基于PXI 总线的任意波形发生器，可直接插在IBM-PC/AT 或与之兼容的计算机内的任一PXI插槽中，构成实验室、产品质量检测中心等各种领域的数据采集、波形分析和处理系统。也可构成工业生产过程监控系统。它的主要应用场合为： ◆ 电子产品质量检测 ◆ 信号采集 ◆ 过程控制 ◆ 伺服控制 ...
工控技术 工业系统安全问题和解决办法
Abstract: As industrial control systems (ICSs) have become increasingly connected and use more off-the-shelfcomponents, new vulnerabilities to cyber attacks have emerged. This tutorial looks at three types of ICSs:programmable logic controllers (PLCs), supervisory control and data acquisition (SCA ...
测试测量 产品检测中裕度和校准的乐趣
Abstract: This application note presents an overview of electronic margining and its value in detectingpotential system failures before a product ships from the factory. It is a calibration method that effectivelypredicts and allows adjustments to improve product quality. Margining also can be use ...
测试测量 智能照明控制器测量环境光线
Abstract: This application note explains how to design an intelligent lighting controller that senses and measures the ambient lightlevel with an ambient light sensor (ALS). Equipped with a real-time clock (RTC), the controller also knows when to turn lighting on oroff at specified times. The syst ...
测试测量 LT5528 WCDMA ACPR和AltCPR测量
 
ACPR (adjacent channel power ratio), AltCPR (alternatechannel power ratio), and noise are important performancemetrics for digital communication systems thatuse, for example, WCDMA (wideband code division multipleaccess) modulation. ACPR and AltCPR are bothmeasures of spectral regrowth. T ...
测试测量 低噪声电压基准的噪声测量
 
Frequently, voltage reference stability and noise defi nemeasurement limits in instrumentation systems. In particular,reference noise often sets stable resolution limits.Reference voltages have decreased with the continuingdrop in system power supply voltages, making referencenoise increa ...
接口技术 ISA(PC104)总线规范
ISA总线概述 ISA总线: (Industry Standard Architecture:工业标准体系结构）是IBM公司为PC/AT电脑而制定的总线标准，为16位体系结构，只能支持16位的I/O设备，数据传输率大约是16MB/S。也称为AT标准。开始时PC机面向个人及办公室，定义了8位的ISA总线结构，对外公开，成为标准（ISO ISA标准）。第三方开发出许多ISA扩充 ...
接口技术 SL811开发资料_包含源程序_电路图_芯片资料
SL811开发资料_包含源程序_电路图_芯片资料:SL811HS Embedded USB Host/Slave Controller.The SL811HS is an Embedded USB Host/Slave Controller capable of communicate with either full-speed or low-speed USB peripherals. The SL811HS can interface to devices such as microprocessors, microcontrollers, DSPs, o ...
通讯/手机编程 Synapse串口同步库。功能有：它不是控件
Synapse串口同步库。功能有：它不是控件，而只是代码库。适合编写控制台应用服务或其它应用；不需要安装；读写数据的方法和Synapse提供的TTCPBlockSocket一样；支持MODEM的AT指令；支持RTS驱动的通讯（例如：RS-485适配器）。功能无限制。源代码：包含。适用语言：CB3 CB4 CB5 D2 D3 D4 D5 ...