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  • 模拟IC性能的权衡 模拟到数字化设计的挑战

    Abstract: Many digital devices incorporate analog circuits. For instance, microprocessors, applicationspecificintegrated circuits (ASICs), and field-programmable gate arrays (FPGAs) may have internalvoltage references, analog-to-digital converters (ADCs) or digital-to-analog converters (DACs). However,there are challenges when you integrate more analog onto a digital design. As with all Things in life, inelectronics we must always trade one parameter for another, with the application dictating the propertrade-off of analog function. In this application note, we examine how the demand for economy of spaceand cost pushes analog circuits onto digital substrates, and what design challenges emerge.  

    标签: 模拟IC 性能 模拟 数字化设计

    上传时间: 2013-11-17

    上传用户:菁菁聆听

  • 为您的FPGA选择合适的电源

    Abstract: There are many Things to consider when designing a power supply for a field-programmablegate array (FPGA). These include (but are not limited to) the high number of voltage rails, and thediffering requirements for both sequencing/tracking and the voltage ripple limits. This application noteexplains these and other power-supply considerations that an engineer must think through whendesigning a power supply for an FPGA.

    标签: FPGA 电源

    上传时间: 2013-11-12

    上传用户:金苑科技

  • 电压基准的理解和应用

      Specifying the right reference and applying it correctly isa more difficult task than one might first surmise, consideringthat references are only 2- or 3-terminal devices.Although the word “accuracy” is most often spoken inreference to references, it is dangerous to use this wordtoo freely because it can mean different Things to differentpeople. Even more perplexing is the fact that a referenceclassified as a dog in one application is a panacea inanother. This application note will familiarize the readerwith the various aspects of reference “accuracy” andpresent some tips on extracting maximum performancefrom any reference.

    标签: 电压基准

    上传时间: 2013-10-15

    上传用户:liuwei6419

  • Switching Regulators for Poets

      The above title is not happenstance and was arrived at afterconsiderable deliberation. As a linear IC manufacturer, it isour goal to encourage users to design and build switchingregulators. A problem is that while everyone agrees thatworking switching regulators are a good thing, everyonealso agrees that they are difficult to get working. Switchingregulators, with their high efficiency and small size, areincreasingly desirable as overall package sizes shrink.Unfortunately, switching regulators are also one of themost difficult linear circuits to design. Mysterious modes,sudden, seemingly inexplicable failures, peculiar regulationcharacteristics and just plain explosions are commonoccurrences. Diodes conduct the wrong way. Things gethot that shouldn’t. Capacitors act like resistors, fusesdon’t blow and transistors do. The output is at ground, andthe ground terminal shows volts of noise.

    标签: Regulators Switching Poets for

    上传时间: 2013-12-19

    上传用户:奇奇奔奔

  • 为您的FPGA选择合适的电源

    Abstract: There are many Things to consider when designing a power supply for a field-programmablegate array (FPGA). These include (but are not limited to) the high number of voltage rails, and thediffering requirements for both sequencing/tracking and the voltage ripple limits. This application noteexplains these and other power-supply considerations that an engineer must think through whendesigning a power supply for an FPGA.

    标签: FPGA 电源

    上传时间: 2013-11-10

    上传用户:iswlkje

  • 物联网技术与研究

    作为新时期经济危机后的技术革命产物,IOT(Internet of Things,物联网)的研究风生水起。主要介绍了IOT的定义、概念和内涵特点,分析了IOT的原理、框架体系和相关技术,阐述了国内外关于IOT的研究和发展,描述和展望了IOT在人类社会生产生活中的应用,并且结合现实和实际,指出了若干存在的问题和不足,思考了下一步要解决的问题和研究的方向,为IOT技术的改进与发展提供参考。

    标签: 物联网技术

    上传时间: 2013-11-18

    上传用户:zhangjinzj

  • 射频基础知识

    Radio frequency (RF) can be a complex subject to navigate, but it does not have to be. If you are just getting started with radios or maybe you cannot find that old reference book about antenna aperture, this guide can help. It is intended to provide a basic understanding of RF technology, as well act as a quick reference for those who “know their stuff” but may be looking to brush up on that one niche term that they never quite understood. This document is also a useful reference for Maxim’s products and data sheets, an index to deeper analysis found in our application notes, and a general reference for all Things RF.

    标签: 射频 基础知识

    上传时间: 2013-10-23

    上传用户:685

  • 无线技术指南

    Radio frequency (RF) can be a complex subject to navigate, but it does not have to be. If you are just getting started with radios or maybe you cannot find that old reference book about antenna aperture, this guide can help. It is intended to provide a basic understanding of RF technology, as well act as a quick reference for those who “know their stuff” but may be looking to brush up on that one niche term that they never quite understood. This document is also a useful reference for Maxim’s products and data sheets, an index to deeper analysis found in our application notes, and a general reference for all Things RF.

    标签: 无线技术

    上传时间: 2013-10-08

    上传用户:kinochen

  • 物联网入门教程_英文版

    物联网是新一代信息技术的重要组成部分。其英文名称是“The Internet of Things”。物联网的定义是通过射频识别(RFID)、红外感应器、全球定位系统、激光扫描器等信息传感设备,按约定的协议,把任何物品与互联网相连接,进行信息交换和通信,以实现对物品的智能化识别、定位、跟踪、监控和管理的一种网络。

    标签: 物联网 入门教程 英文

    上传时间: 2013-10-09

    上传用户:nunnzhy

  • 最新的支持向量机工具箱

    最新的支持向量机工具箱,有了它会很方便 1. Find time to write a proper list of Things to do! 2. Documentation. 3. Support Vector Regression. 4. Automated model selection. REFERENCES ========== [1] V.N. Vapnik, "The Nature of Statistical Learning Theory", Springer-Verlag, New York, ISBN 0-387-94559-8, 1995. [2] J. C. Platt, "Fast training of support vector machines using sequential minimal optimization", in Advances in Kernel Methods - Support Vector Learning, (Eds) B. Scholkopf, C. Burges, and A. J. Smola, MIT Press, Cambridge, Massachusetts, chapter 12, pp 185-208, 1999. [3] T. Joachims, "Estimating the Generalization Performance of a SVM Efficiently", LS-8 Report 25, Universitat Dortmund, Fachbereich Informatik, 1999.

    标签: 支持向量机 工具箱

    上传时间: 2013-12-16

    上传用户:亚亚娟娟123