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電源設(shè)計(jì)應(yīng)用
Buffered Linear-Ramp Generator
Abstract: A precision ramp generator produces a 0 to 5V ramp while operating from a single 5V supply. Using standard circuits and no auxiliary voltage generators, such as charge pumps or inductive DC-DC converters, it is ...
2009-04-20 標(biāo)簽：Linear-Ram 2188
DS1090頻率計(jì)算器
摘要：本應(yīng)用筆記提供一個(gè)簡(jiǎn)單易用的頻率計(jì)算器，用于確定適當(dāng)?shù)男吞?hào)、偏置電阻以及DS1090低頻、電阻可編程、擴(kuò)頻EconOscillator™的輸入設(shè)置。DS1090可提供125kHz至8MHz的擴(kuò)頻、方...
2009-04-20 標(biāo)簽： 554
Analog Switches Operate With 3
Abstract: By adding a voltage doubler and voltage inverter, a single 3V or 5V power supply can produce the voltages necessary to improve the performance on a dual voltage analog switch. With the higher power supplies and wider range, the o...
2009-04-20 標(biāo)簽：Operate 1034
Minimizing Total Harmonic Dist
Abstract: Analog switches are commonly used in audio systems to switch low-level inputs or adjust audio filter characteristics. Selecting the proper analog switch can help optimize the total harmonic distortion (THD) of a system within the...
2009-04-20 標(biāo)簽：Systems 1337
Analog Switch Lowers Relay Pow
Abstract: Design idea outlining a method to use an analog switch and discrete components to reduce the power dissipated in relay actuation. Relays are often used as electrically controlled switches. Unlike transistors, th...
2009-04-20 標(biāo)簽：Power 1771
Selectable-Range Current Loop
Abstract: This article shows an example of implementing a 4-20mA or 0-20mA current-loop output using a voltage output digital-to-analog converter (DAC) and a V to I converter. Current-loop signals, as opposed to voltage s...
Fault Protection Saves Multipl
Abstract: Discrete components are available to protect against faults caused when a voltage applied to the input of a switch, mux, or signal-line circuit protector exceeds the voltage at the power supply pins. A more practical approach to ...
Selecting the Right CMOS Analo
Abstract: This tutorial outlines the basic construction, operation, and applications of analog switches. On-resistance, flatness, and charge-injection, each a performance-related specification, are defined. Application-specific features in...
2009-04-20 標(biāo)簽：CMOS 1337
Multiplexer Enables Pseudomult
Abstract: A circuit is described that allows four remote RS-232 transceivers to share a single UART. A dual four-to-one multiplexer permits transceiver IC1 to form a network with the four remote transceivers. RS-232 commu...
2009-04-20 標(biāo)簽：RS-232 1324
High-Speed Pulse Generator Has
Abstract: As integrated circuits (ICs) speed up, the rise/fall times of most pulse and function generators (5ns typical) become inadequate for measuring time intervals below 20ns. You can overcome this limitation with analog switches or ad...
2009-04-20 標(biāo)簽：High-Speed 1714
低電壓故障保護(hù)
摘要：本應(yīng)用筆記討論過壓保護(hù)在連接系統(tǒng)電路的開關(guān)和復(fù)用器中的必要性。MAX4711/MAX4712/MAX4713模擬開關(guān)工作在2.7V至11V，集成了故障保護(hù)功能。本文還介紹了其它幾種故障保護(hù)方案...
2009-04-20 標(biāo)簽：電壓 1175
Protecting Against Momentary P
Abstract: Impact or vibration can cause momentary interruptions when batteries lose contact. To ensure continuity of power in battery-powered systems, add this three-IC circuit. When you drop a battery-powered device, the...
2009-04-20 標(biāo)簽： 571
電池與PWM充電電源短路保護(hù)
摘要：本應(yīng)用筆記提供了一個(gè)簡(jiǎn)單的蜂窩電話電池充電系統(tǒng)的保護(hù)方案，避免在基帶處理器閉鎖時(shí)損壞電池。該電路通過監(jiān)視處理器和插接操作，避免電池與PWM充電電源短路。 ...
2009-04-20 標(biāo)簽：PWM 2069
Using DS4510/DS4520/DS4550 to
Abstract: Many high-reliability systems maintain a backup copy of their flash memory should a new software download become unusable for any reason. This application note describes how the DS4510, DS4520, and DS4550 non-volatile I/O expande...
2009-04-20 標(biāo)簽：Memory 1226
Driving White LEDs in Clamshel
Abstract: A switching-converter IC—designed as a white-LED driver—and an analog switch control three forms of LED illumination in a mobile (clamshell) phone. This circuit multiplexes the drive to three sets of LEDs fo...
2009-04-20 標(biāo)簽：led 713
DS33X162產(chǎn)品線的FAQ
摘要：本應(yīng)用筆記是DS33X162 EoPDH以太網(wǎng)映射器產(chǎn)品線的常見問題解答(FAQ)。DS33X162產(chǎn)品線可以應(yīng)用于運(yùn)營級(jí)以太網(wǎng)、以太分界設(shè)備、以太網(wǎng)接入、MSPP、DSLAM、ROADM、微波通信、WAN路由器...
2009-04-20 標(biāo)簽：DS33X162 1634
改善USB 2.0開關(guān)系統(tǒng)的響應(yīng)特性
摘要：本應(yīng)用筆記介紹如何利用MAX4906EF實(shí)現(xiàn)一個(gè)超低功耗、低成本的雙USB 2.0端口切換開關(guān)。這個(gè)電路在幾乎沒有增加電流消耗的情況下為USB設(shè)計(jì)增加了一個(gè)2:1開關(guān)，從而使幾個(gè)插座...
2009-04-20 標(biāo)簽：usb 1281
使用MAX4951 SATA雙向轉(zhuǎn)接器驅(qū)動(dòng)eSATA電纜
摘要：采用增強(qiáng)串行ATA (eSATA)，帶有外部驅(qū)動(dòng)的計(jì)算機(jī)系統(tǒng)在性能上實(shí)際與內(nèi)部驅(qū)動(dòng)計(jì)算機(jī)系統(tǒng)相當(dāng)，要比USB 2.0快得多。eSATA提供單獨(dú)的接收/發(fā)送通道，速率高達(dá)3.0Gbps，而USB 2.0只是...
2009-04-20 標(biāo)簽： 752
Robust Contact Monitor Simplif
Abstract: This application note demonstrates how the MAX13362 automotive switch monitor performs during ECU-level testing. The article describes the tests performed and the results obtained. IntroductionThe MAX...
2009-04-20 標(biāo)簽：design 781
Reference Design for Switching
Abstract: This application shows how the MAX4885E low-capacitance VGA switch can be used to perform the switching function in a laptop computer. The MAX4885E draws nearly zero current, fits into a 4mm x 4mm package, and incorporates most o...
2009-04-20 標(biāo)簽：VGA 900
Switching VGA Signals in a Not
Abstract: This application shows how the MAX4885E low-capacitance VGA switch can be used to perform the switching function between a notebook computer and a docking station. The MAX4885E draws nearly zero current, fits into a 4mm x 4mm pac...
2009-04-20 標(biāo)簽：VGA 871
8比特 800Msps高速采樣保持電路的設(shè)計(jì)
隨著數(shù)字技術(shù)的突飛猛進(jìn)，越來越多的電路系統(tǒng)將A／D轉(zhuǎn)換器作為一個(gè)子模塊集成到系統(tǒng)內(nèi)部。例如在便攜式數(shù)據(jù)傳輸、數(shù)字視頻和圖像處理等應(yīng)用系統(tǒng)中，8~12 bit分辨率的嵌入式A...
基于PWM AC—AC變換的電壓補(bǔ)償器設(shè)計(jì)
基于PWM AC—AC變換的電壓補(bǔ)償器設(shè)計(jì) 研究表明配電系統(tǒng)中90％以上的擾動(dòng)都是由電壓降低引起的，常用的低壓補(bǔ)償技術(shù)無論是變電站的集中補(bǔ)償、用戶的分散補(bǔ)償，還是桿上...
2009-04-20 標(biāo)簽： 1778
DC/DC輻照損傷與VDMOS器件1/f噪聲相關(guān)性研究
DC/DC輻照損傷與VDMOS器件1/f噪聲相關(guān)性研究 大量的研究表明，低頻噪聲除了與產(chǎn)品性能有關(guān)之外，還與產(chǎn)品質(zhì)量和可靠性密切相關(guān)。國內(nèi)外出現(xiàn)了一系列使用低頻噪聲特別是1...
2009-04-20 標(biāo)簽：DCDC 1141
OLED電源設(shè)計(jì)
OLED電源設(shè)計(jì) 有機(jī)發(fā)光二極管（OLED）的最大特色在于它是自發(fā)光體，不需要背光源和彩色濾光片，厚度比LCD薄; 此外，它還具有更寬的視角...
2009-04-19 標(biāo)簽：電源設(shè)計(jì)OLED 2270
利用DirectDrive技術(shù)從3.3V單電源產(chǎn)生2VRMS
利用DirectDrive 技術(shù)從3.3V 單電源產(chǎn)生2VRMS 的線驅(qū)動(dòng) 本應(yīng)用筆記將Maxim 的DirectDrive™技術(shù)與傳統(tǒng)的單電源供電音頻線驅(qū)動(dòng)器相比較，給出...
2009-04-19 標(biāo)簽：DirectDriv 963
DS318x中CLAD的配置
摘要：本應(yīng)用筆記介紹了如何配置DS3184中的時(shí)鐘速率適配器(CLAD)功能單元。同樣適用于其他Dallas Semiconductor的器件，例如DS3181, DS3182和DS3183。DS3181, DS3182, DS3183和DS3184 (DS318x)集成了ATM...
2009-04-18 標(biāo)簽：CLAD 1216
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