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  • SM320 PCB LAYOUT GUIDELINES

    Silicon Motion, Inc. has made best efforts to ensure that the information contained in this document is accurate andreliable. However, the information is subject to change without notice. No responsibility is assumed by SiliconMotion, Inc. for the use of this information, nor for infringements of patents or other rights of third parties.Copyright NoticeCopyright 2002, Silicon Motion, Inc. All rights reserved. No part of this publication may be reproduced, photocopied,or transmitted in any form, without the prior written consent of Silicon Motion, Inc. Silicon Motion, Inc. reserves theright to make changes to the product specification without reservation and without notice to our users

    標簽: GUIDELINES LAYOUT 320 PCB

    上傳時間: 2014-12-24

    上傳用戶:zhaistone

  • 零晶體管IC-IC設計一個新高度

    Abstract: We can apply a BiCMOS integrated circuit with only resistors and no transistors to solve adifficult design problem. The mythically perfect operational amplifier's gain and temperature coefficient aredependent on external resistor values. Maxim precision resistor arrays are manufactured together on asingle die and then automatically trimmed, to ensure close ratio matching. This guarantees that theoperational amplifier (op amp) gain and temperature coefficient are predictable and reliable, even withlarge production volumes.

    標簽: IC-IC 晶體管

    上傳時間: 2014-11-30

    上傳用戶:ynzfm

  • DN387 級聯7A點的負載單片降壓轉換器

      Easy-to-use and compact point-of-load power suppliesare necessary in systems with widely distributed, highcurrent, low voltage loads. The LTC®3415 provides acompact, simple and versatile solution. It includes a pairof integrated complementary power MOSFETs (32mΩtop and 25mΩ bottom) and requires no external senseresistor. A complete design requires an inductor andinput/output capacitors, and that’s it. The result is a fast,constant frequency, 7A current mode DC/DC switchingregulator.

    標簽: 387 DN 級聯 負載

    上傳時間: 2013-10-18

    上傳用戶:avensy

  • DN383 高電壓電流模式降壓轉換器

      Low power standby requirements are typically associatedwith battery-powered systems. Automotive systems,for example, commonly require power supplies tomaintain output voltage regulation even under no-loadconditions—while drawing minimal quiescent current topreserve battery life. Rising energy costs, however, haveextended the need for low current standby operation toline-powered systems, such as small plugged-in appliancesfor home and business.

    標簽: 383 DN 高電壓 電流模式

    上傳時間: 2013-11-20

    上傳用戶:xinyuzhiqiwuwu

  • DN465 超低功耗升壓轉換器

      Industrial remote monitoring systems and keep-alivecircuits spend most of their time in standby mode. Manyof these systems also depend on battery power, so powersupply effi ciency in standby state is very important tomaximize battery life. The LT®8410/-1 high effi ciencyboost converter is ideal for these systems, requiringonly 8.5μA of quiescent current in standby mode. Thedevice integrates high value (12.4M/0.4M) output feedbackresistors, signifi cantly reducing input current whenthe output is in regulation with no load. Other featuresinclude an integrated 40V switch and Schottky diode,output disconnect with current limit, built in soft-start,overvoltage protection and a wide input range, all in atiny 8-pin 2mm × 2mm DFN package.

    標簽: 465 DN 超低功耗 升壓轉換器

    上傳時間: 2013-11-23

    上傳用戶:新手無憂

  • GPON系統的APD偏置解決方案

      Avalanche photo diode (APD) receiver modules arewidely used in fi ber optic communication systems. AnAPD module contains the APD and a signal conditioningamplifi er, but is not completely self contained. It stillrequires signifi cant support circuitry including a highvoltage, low noise power supply and a precision currentmonitor to indicate the signal strength. The challenge issqueezing this support circuitry into applications withlimited board space. The LT®3482 addresses this challengeby integrating a monolithic DC/DC step-up converter andan accurate current monitor. The LT3482 can supportup to a 90V APD bias voltage, and the current monitorprovides better than 10% accuracy over four decades ofdynamic range (250nA to 2.5mA).

    標簽: GPON APD 方案

    上傳時間: 2014-01-18

    上傳用戶:wenyuoo

  • 超級電容器備用電源系統的手持設備數據保護

      Handheld electronic devices play a key role in our everydaylives. Because dependability is paramount, handhelds arecarefully engineered with lightweight power sources forreliable use under normal conditions. But no amount ofcareful engineering can prevent the mistreatment theywill undergo at the hands of humans. For example, whathappens when a factory worker drops a bar code scanner,causing the battery to pop out? Such events areelectronically unpredictable, and important data storedin volatile memory would be lost without some form ofsafety net—namely a short-term power holdup systemthat stores suffi cient energy to supply standby power untilthe battery can be replaced or the data can be stored inpermanent memory.

    標簽: 超級電容器 備用電源 手持設備

    上傳時間: 2013-11-05

    上傳用戶:coeus

  • 運用LT3092電流源以高線性度來實現溫度至電流轉換

      One of the fi rst lessons in a basic electronics coursecovers the symbols for resistors, capacitors, inductors,voltage sources and current sources. Althougheach symbol represents a functional component of areal-world circuit, only some of the symbols have directphysical counterparts. For instance, the three discretepassive devices—resistors, capacitors, inductors—canbe picked off a shelf and placed on a real board muchas their symbolic analogs appear in a basic schematic.Likewise, while voltage sources have no direct 2-terminalanalog, a voltage source can be easily built with an offthe-shelf linear regulator.

    標簽: 3092 LT 電流源 溫度

    上傳時間: 2013-11-24

    上傳用戶:simonpeng

  • 筆記本電腦的功率調節系統

      Notebook and palmtop systems need a multiplicity ofregulated voltages developed from a single battery. Smallsize, light weight, and high efficiency are mandatory forcompetitive solutions in this area. Small increases inefficiency extend battery life, making the final productmuch more usable with no increase in weight. Additionally,high efficiency minimizes the heat sinks needed onthe power regulating components, further reducing systemweight and size.

    標簽: 筆記本電腦 功率調節

    上傳時間: 2013-11-11

    上傳用戶:大三三

  • 信號調理電路和電源轉換

      Linear Technology has a sabbatical program. Every fiveyears employees are granted sabbatical leave, which maylast up to six weeks. You have 18 months from each fiveyear employment anniversary to take the leave. Sabbaticalis fully company paid and has no restrictions. The time isyours to do with as you please.

    標簽: 信號調理電路 電源轉換

    上傳時間: 2013-10-19

    上傳用戶:851197153

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