<li id="mqymg"></li> 電子發(fā)燒友網(wǎng)為大家提供了新一代高速定位模塊QD75M詳解，希望看完之后你對(duì)高速定位模塊QD75M有一個(gè)全面的認(rèn)識(shí)。
上傳時(shí)間： 2013-10-22
上傳用戶(hù)：stvnash
訊號(hào)路徑設(shè)計(jì)講座(9)針對(duì)高速應(yīng)用的電流回授運(yùn)算放大器電流回授運(yùn)算放大器架構(gòu)已成為各類(lèi)應(yīng)用的主要解決方案。該放大器架構(gòu)具有很多優(yōu)勢(shì)，并且?guī)缀蹩蓪?shí)施于任何需要運(yùn)算放大器的應(yīng)用當(dāng)中。電流回授放大器沒(méi)有基本的增益頻寬產(chǎn)品的局限，隨著訊號(hào)振幅的增加，而頻寬損耗依然很小就證明了這一點(diǎn)。由于大訊號(hào)具有極小的失真，所以在很高的頻率情況下這些放大器都具有極佳的線(xiàn)性度。電流回授放大器在很寬的增益范圍內(nèi)的頻寬損耗很低，而電壓回授放大器的頻寬損耗卻隨著增益的增加而增加。準(zhǔn)確地說(shuō)就是電流回授放大器沒(méi)有增益頻寬產(chǎn)品的限制。當(dāng)然，電流回授放大器也不是無(wú)限快的。變動(dòng)率受制于晶體管本身的速度限制（而非內(nèi)部偏置(壓)電流）。這可以在給定的偏壓電流下實(shí)現(xiàn)更大的變動(dòng)率，而無(wú)需使用正回授和其它可能影響穩(wěn)定性的轉(zhuǎn)換增強(qiáng)技術(shù)。那么，我們?nèi)绾蝸?lái)建立這樣一個(gè)奇妙的電路呢？電流回授運(yùn)算放大器具有一個(gè)與差動(dòng)對(duì)相對(duì)的輸入緩沖器。輸入緩沖器通常是一個(gè)射極追隨器或類(lèi)似的器件。非反向輸入是高阻抗的，而緩沖器的輸出（即放大器的反向輸入）是低阻抗的。相反，電壓回授放大器的2個(gè)輸入均是高阻抗的。電流回授運(yùn)算放大器輸出的是電壓，而且與透過(guò)稱(chēng)為互阻抗Z(s)的復(fù)變函數(shù)流出或流入運(yùn)算放大器的反向輸入端的電流有關(guān)。在直流電情況下，互阻抗很高（與電壓回授放大器類(lèi)似），并且隨著頻率的增加而單極滾降。
標(biāo)簽： 電流 運(yùn)算放大器
上傳時(shí)間： 2013-10-19
上傳用戶(hù)：黃蛋的蛋黃
高速數(shù)字系統(tǒng)設(shè)計(jì)下載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.
標(biāo)簽： 高速數(shù)字 系統(tǒng)設(shè)計(jì)
上傳時(shí)間： 2013-10-26
上傳用戶(hù)：縹緲
ICL8038 單片函數(shù)發(fā)生器
標(biāo)簽： 8038 ICL 函數(shù)發(fā)生器
上傳時(shí)間： 2014-12-23
上傳用戶(hù)：wushengwu
運(yùn)行典型高速ADC評(píng)估板設(shè)置
標(biāo)簽： ADC 運(yùn)行 典型 評(píng)估板
上傳時(shí)間： 2013-10-22
上傳用戶(hù)：ly1994
采用高輸入頻率、高速模數(shù)轉(zhuǎn)換器(ADC)的系統(tǒng)設(shè)計(jì)是一項(xiàng)具挑戰(zhàn)性的任務(wù)。ADC輸入接口設(shè)計(jì)有6個(gè)主要條件：輸入阻抗、輸入驅(qū)動(dòng)、帶寬、通帶平坦度、噪聲和失真。
上傳時(shí)間： 2013-10-21
上傳用戶(hù)：chukeey
高速數(shù)據(jù)轉(zhuǎn)換器評(píng)估平臺(tái)(HSDCEP)是基于PC的平臺(tái)，提供評(píng)估Maxim RF數(shù)/模轉(zhuǎn)換器(RF-DAC，支持更新速率≥ 1.5Gsps)和Maxim數(shù)字上變頻器(DUC)的齊全工具。HSDCEP可以在每對(duì)數(shù)據(jù)引腳產(chǎn)生速率高達(dá)1.25Gbps的測(cè)試碼型，支持多達(dá)4條并行16位LVDS總線(xiàn)。通過(guò)USB 2.0端口將最長(zhǎng)64兆字(Mw)、每字16位寬的數(shù)據(jù)碼型裝載至HSDCEP存儲(chǔ)器
標(biāo)簽： HSDCEP 高速數(shù)據(jù) 轉(zhuǎn)換器 評(píng)估平臺(tái)
上傳時(shí)間： 2013-10-25
上傳用戶(hù)：zycidjl
PADS-2007高速電路板設(shè)計(jì)
上傳時(shí)間： 2013-10-09
上傳用戶(hù)：hanli8870
高速高頻PCB走線(xiàn)精品設(shè)計(jì)指南 八套連發(fā)
標(biāo)簽： PCB 設(shè)計(jì)指南
上傳時(shí)間： 2013-11-05
上傳用戶(hù)：teddysha
高速高頻PCB走線(xiàn)精品設(shè)計(jì)指南 八套連發(fā)
標(biāo)簽： PCB 設(shè)計(jì)指南
上傳時(shí)間： 2013-11-17
上傳用戶(hù)：change0329
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