High input impedance and a wide input range are twohighly desirable features in a precision Analog-TO-DIGITALconverter, and the LTC®2449 delta-sigma ADC has both.With just a few external components, the LTC2449 formsan exceptional measurement system with very high inputimpedance and an input range that extends 300mV beyondthe supply rails.
上传时间： 2013-11-02
上传用户：ywcftc277
高速数字系统设计下载pdf:High-Speed Digital SystemDesign—A Handbook ofInterconnect Theory and DesignPracticesStephen H. HallGarrett W. HallJames A. McCallA Wiley-Interscience Publication JOHN WILEY & SONS, INC.New York • Chichester • Weinheim • Brisbane • Singapore • TorontoCopyright © 2000 by John Wiley & Sons, Inc.speeddigital systems at the platform level. The book walks the reader through everyrequired concept, from basic transmission line theory to digital timing analysis, high-speedmeasurement techniques, as well as many other topics. In doing so, a unique balancebetween theory and practical applications is achieved that will allow the reader not only tounderstand the nature of the problem, but also provide practical guidance to the solution.The level of theoretical understanding is such that the reader will be equipped to see beyondthe immediate practical application and solve problems not contained within these pages.Much of the information in this book has not been needed in past digital designs but isabsolutely necessary today. Most of the information covered here is not covered in standardcollege curricula, at least not in its focus on digital design, which is arguably one of the mostsignificant industries in electrical engineering.The focus of this book is on the design of robust high-volume, high-speed digital productssuch as computer systems, with particular attention paid to computer busses. However, thetheory presented is applicable to any high-speed digital system. All of the techniquescovered in this book have been applied in industry to actual digital products that have beensuccessfully produced and sold in high volume.Practicing engineers and graduate and undergraduate students who have completed basicelectromagnetic or microwave design classes are equipped to fully comprehend the theorypresented in this book. At a practical level, however, basic circuit theory is all thebackground required to apply the formulas in this book.
上传时间： 2013-10-26
上传用户：缥缈
利用单片机具有的智能程序控制的特点，设计了基于STC89C52单片机的"二极管特性测试器"，可对二极管一般特性进行快速测试。通过稳定线性电流源给二极管加载恒定电流，然后由高精度模数转换器测试其压降，以此为基础可判断二极管好坏、检测二极管极性和测试二极管伏安特性等，避免了用万用表测试只能测得极性而不知其特性这一缺点。可用于电子设计制作过程中对二极管进行快速测试，以确定被测二极管是否满足电路的设计要求。 Abstract: By making good use of the intelligent control function of the Micro Controller Unit (MCU)， the diode trait tester was designed based on the STC89C52，which could be used to test the trait of a diode rapidly. By loading constant current to diode through the stable linear current source， and measuring the voltage drop of the diode by high-precision analogue-to-digital converter (ADC)， it can judge whether the diode is good or not， distinguish the polarity of the diode， and test the trait that the diode， which can avoid the fault of using a multimeter can only measure the polarity but not the trait. This device can be used to test the trait of a diode quickly，and to make sure that whether a diode can be used in the electronic design or not.
上传时间： 2013-11-13
上传用户：assef
msp430The LDC1312 and LDC1314 are 2- and 4-channel, 1• Easy-to-use – minimal configuration required 12-bit inductance to digital converters (LDCs) for • Measure up to 4 sensors with one IC inductive sensing solutions. With multiple channels • Multiple channels support environmental and and support for remote sensing, the LDC1312 and aging compensation LDC1314 enable the performance and reliability benefits of inductive sensing to be realized at minimal• Multi-channel remote sensing provides lowest cost and power. The products are easy to use, onlysystem cost requiring that the sensor frequency be within 1 kHz • Pin-compatible medium and high-resolution and 10 MHz to begin sensing. The wide 1 kHz to 10 options MHz sensor frequency range also enables use of very small PCB coils, further reducing sensing– LDC1312/4: 2/4-ch 12-bit LDC solution cost and size.– LDC1612/4: 2/4-ch 28
上传时间： 2016-07-22
上传用户：tongmoonsky
T his book covers basic communications theory and practical imple- mentation of transmitters and receivers. In so doing, I focus on dig- ital modulation, demodulation methods, probabilities, detection of digital signals, and spread spectrum system design and analysis. This book was written for those who want a good understanding of the basic prin- ciples of digital wireless communication systems, including spread spec- trum techniques. This book also provides a good intuitive and practical approach to digital communications. Therefore it is a valuable resource for anyoneinvolvedinwirelesscommunicationsandtransceiverdesignfordig- ital communications. The reader will gain a broad understanding of basic communication principles for transceiver design, digital communications, and spread spectrum, along with examples of many types of commercial and military data link systems.
标签： Transceiver System Design
上传时间： 2020-06-01
上传用户：shancjb
科学家与工程师数字信号处理指南The Scientist and Engineer Guide to Digital Signal Processing.pdf
标签： 数字信号处理
上传时间： 2021-11-11
上传用户：
VIP专区-嵌入式/单片机编程源码精选合集系列（112）资源包含以下内容：1. 总结了常用的主要c算法.2. 太阳能热水器智能控制,它以89C52单片机为核心.3. 本系统由单片机系统、矩阵键盘、LED显示和报警系统组成。系统能完成开锁、超时报警、超次锁定、管理员解密、修改用户密码基本的密码锁的功能。除上述基本的密码锁功能外.4. ID读卡器原理图,分立元件的,挺经典的,值得收藏.5. 嵌入式的驱动结构.6. 实现汉字液晶显示子程序 液晶屏分为4行*12列汉字.7. 一个简单的用单片机控制唱歌---“祝你平安”.8. modbus的ascii模式源代码.9. modbus的rtu源代码.10. ocm4x8c液晶显示器的显示c语言程序,供开发使用.11. 基于lpc2106和OV6620的源代码.12. ９３Ｃ４６是一个具有ＳＰＩ接口的存储芯片.13. A Guide To Digital Design And Synthesis.14. ndis 中间层截获后转发的例子,通过修改IP 地址和MAC地址转发..15. ads下2410的测试程序.16. 主要是关于GUI的一本很好的书籍。对于初学习者有很大的帮组作用.17. 这是一本关于嵌入式系统应用软件开发案例,介绍了ARM处理器和UC/OS-II操作系统的嵌入式编程的基础知识和独有特点,本书的每一个综合实验都分别用实验报告书、实验指导书和源码详解3个部分给予介绍..18. 液晶驱动1621B的驱动程序.19. LZ9FC22_FV_LCD,LCD driver ic for embeded application..20. 《电路板设计与制作Protel99 高级应用》随书光盘.21. TI的2812的SCI的调试程序.22. TI的2812的TIMER的调试程序.23. ADS设计开发基础.24. 很好的proteus应用实例.25. hipGenius是一款USB设备芯片型号查询工具.26. #include <reg52.h> #include <stdio.h> #include <string.h> #define uchar unsigne.27. 如何把PCB图加入到WORD中是很多人所苦恼的问题..很多网站上都有提供这类问题的答案.但我觉得这个最可行..截图时要尽量放大,要不会出现像素不足的问题.28. prolog语言教程.29. 数控机床刀具半径补偿圆弧接圆弧C程序代码.30. 数控机床刀具半径补偿 直线接直线 C程序源码.31. 语音芯片1420P。可录音20秒。自己编的程序。.32. c/c++嵌入式开发的重要资料.33. wince 5.0下 实现PCI8串口卡驱动.34. 电机矢量控制程序.35. ＳＰＩ总线与ＣＰＬＤ之间的通信程序.36. 第一章 在Allegro 中准备好进行SI 仿真的PCB 板图.37. 实施交通灯的控制.38. usb器件的电源测试.39. zr36966与eeprom连线.40. 介绍了各种cpld的配置和下载方法.
标签： 光电检测技术
上传时间： 2013-06-14
上传用户：eeworm
The MAX504/MAX515 are low-power, voltage-output, 10-bit digital-to-analog converters (DACs) specified for single +5V power-supply operation.用于DA转换芯片选型
标签： digital-to-analog voltage-output converters MAX
上传时间： 2015-11-26
上传用户：541657925
This document describes how to switch to and program the unisersal serial bus (USB) analog phase-locked loop (APLL) on the C5506/C5507/C5509A devices. Example assembly programs for programming and switching to and from the APLL are also provided in the attached zip file. It is assumed that the reader is familiar with the use and operation of the C5506/C5507/C5509A USB digital phase-locked loop (DPLL) and C55x™ Digital Signal Processor (DSP) IDLE procedures.
标签： describes unisersal document phase-lo
上传时间： 2014-01-13
上传用户：hustfanenze
Commercially available active noise control headphones rely on fixed analog controllers to drive "anti-noise" loudspeakers. Our design uses an adaptive controller to optimally cancel unwanted acoustic noise. This headphone would be particularly useful for workers who operate or work near heavy machinery and engines because the noise is selectively eliminated. Desired sounds, such as speech and warning signals, are left to be heard clearly. The adaptive control algorithm is implemented on a Texas Instruments (TI™ ) 1 TMS320C30GEL digital signal processor (DSP), which drives a Sony CD550 headphone/microphone system. Our experiments indicate that adaptive noise control results in a dramatic improvement in performance over fixed noise control. This improvement is due to the availability of high-performance programmable DSPs and the self-optimizing and tracking capabilities of the adaptive controller in response to the surrounding noise.
标签： Commercially controllers headphones available
上传时间： 2013-12-04
上传用户：dyctj
