-
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.
標(biāo)簽：
模擬IC
性能
模擬
數(shù)字化設(shè)計(jì)
上傳時(shí)間：
2013-11-17
上傳用戶(hù)：菁菁聆聽(tīng)
-
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.
標(biāo)簽：
FPGA
電源
上傳時(shí)間：
2013-11-12
上傳用戶(hù)：金苑科技
-
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.
標(biāo)簽：
電壓基準(zhǔn)
上傳時(shí)間：
2013-10-15
上傳用戶(hù)：liuwei6419
-
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.
標(biāo)簽：
Regulators
Switching
Poets
for
上傳時(shí)間：
2013-12-19
上傳用戶(hù)：奇奇奔奔
-
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.
標(biāo)簽：
FPGA
電源
上傳時(shí)間：
2013-11-10
上傳用戶(hù)：iswlkje
-
作為新時(shí)期經(jīng)濟(jì)危機(jī)后的技術(shù)革命產(chǎn)物，IOT（Internet of Things，物聯(lián)網(wǎng)）的研究風(fēng)生水起。主要介紹了IOT的定義、概念和內(nèi)涵特點(diǎn)，分析了IOT的原理、框架體系和相關(guān)技術(shù)，闡述了國(guó)內(nèi)外關(guān)于IOT的研究和發(fā)展，描述和展望了IOT在人類(lèi)社會(huì)生產(chǎn)生活中的應(yīng)用，并且結(jié)合現(xiàn)實(shí)和實(shí)際，指出了若干存在的問(wèn)題和不足，思考了下一步要解決的問(wèn)題和研究的方向，為IOT技術(shù)的改進(jìn)與發(fā)展提供參考。
標(biāo)簽：
物聯(lián)網(wǎng)技術(shù)
上傳時(shí)間：
2013-11-18
上傳用戶(hù)：zhangjinzj
-
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.
標(biāo)簽：
射頻
基礎(chǔ)知識(shí)
上傳時(shí)間：
2013-10-23
上傳用戶(hù)：685
-
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.
標(biāo)簽：
無(wú)線技術(shù)
上傳時(shí)間：
2013-10-08
上傳用戶(hù)：kinochen
-
物聯(lián)網(wǎng)是新一代信息技術(shù)的重要組成部分。其英文名稱(chēng)是“The Internet of Things”。物聯(lián)網(wǎng)的定義是通過(guò)射頻識(shí)別（RFID）、紅外感應(yīng)器、全球定位系統(tǒng)、激光掃描器等信息傳感設(shè)備，按約定的協(xié)議，把任何物品與互聯(lián)網(wǎng)相連接，進(jìn)行信息交換和通信，以實(shí)現(xiàn)對(duì)物品的智能化識(shí)別、定位、跟蹤、監(jiān)控和管理的一種網(wǎng)絡(luò)。
標(biāo)簽：
物聯(lián)網(wǎng)
入門(mén)教程
英文
上傳時(shí)間：
2013-10-09
上傳用戶(hù)：nunnzhy
-
最新的支持向量機(jī)工具箱，有了它會(huì)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.
標(biāo)簽：
支持向量機(jī)
工具箱
上傳時(shí)間：
2013-12-16
上傳用戶(hù)：亞亞娟娟123
