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requires

  • The script requires four fields, X, Y, label, and html. Currently these four fields are the only fi

    The script requires four fields, X, Y, label, and html. Currently these four fields are the only fields converted into XML

    標簽: fields four Currently requires

    上傳時間: 2013-11-30

    上傳用戶:iswlkje

  • Installation of PelcoNet NET300 requires support from your network administrator. Contact your admi

    Installation of PelcoNet NET300 requires support from your network administrator. Contact your administrator to assist with STEP 2A – Configuring PelcoNet Using HyperTerminal. Write down the following information from your network administrator:

    標簽: your administrator Installation PelcoNet

    上傳時間: 2014-01-02

    上傳用戶:釣鰲牧馬

  • DS18B20中文資料

    FEATURES  Unique 1-Wire interface requires only one port pin for communication  Multidrop capability simplifies distributed temperature sensing applications  requires no external components  Can be powered from data line. Power supply range is 3.0V to 5.5V  Zero standby power required  Measures temperatures from -55°C to +125°C. Fahrenheit equivalent is -67°F to +257°F  ±0.5°C accuracy from -10°C to +85°C  Thermometer resolution is programmable from 9 to 12 bits  Converts 12-bit temperature to digital word in 750 ms (max.)  User-definable, nonvolatile temperature alarm settings  Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition)  Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system

    標簽: 18B B20 DS 18

    上傳時間: 2013-08-04

    上傳用戶:CHENKAI

  • DN454 單端至差分放大器設計技巧

      A fully differential amplifi er is often used to converta single-ended signal to a differential signal, a designwhich requires three signifi cant considerations: theimpedance of the single-ended source must match thesingle-ended impedance of the differential amplifi er,the amplifi er’s inputs must remain within the commonmode voltage limits and the input signal must be levelshifted to a signal that is centered at the desired outputcommon mode voltage.

    標簽: 454 DN 單端 差分放大器

    上傳時間: 2013-11-09

    上傳用戶:wweqas

  • 用于信號調理的微電路

      Low power operation of electronic apparatus has becomeincreasingly desirable. Medical, remote data acquisition,power monitoring and other applications are good candidatesfor battery driven, low power operation. Micropoweranalog circuits for transducer-based signal conditioningpresent a special class of problems. Although micropowerICs are available, the interconnection of these devices toform a functioning micropower circuit requires care. (SeeBox Sections, “Some Guidelines for Micropower Designand an Example” and “Parasitic Effects of Test Equipmenton Micropower Circuits.”) In particular, trade-offs betweensignal levels and power dissipation become painful whenperformance in the 10-bit to 12-bit area is desirable.

    標簽: 信號調理 微電路

    上傳時間: 2013-10-22

    上傳用戶:rocketrevenge

  • 低電壓FPGA的高性能開關電源解決方案

      The core voltages for FPGAs are moving lower as a resultof advances in the fabrication process. The newest FPGAfamily from Altera, the Stratix® II, now requires a corevoltage of 1.2V and the Stratix, Stratix GX, HardCopy®Stratix and CycloneTM families require a core voltage of1.5V. This article discusses how to power the core and I/Oof low voltage FPGAs using the latest step-down switchmode controllers from Linear Technology Corporation.

    標簽: FPGA 低電壓 高性能開關 電源解決方案

    上傳時間: 2013-10-08

    上傳用戶:wangfei22

  • DN1011 簡單高效率隔離型反激式電源

      While simplicity and high effi ciency (for cool running) areno longer optional features in isolated power supplies, itis traditionally diffi cult to achieve both. Achieving higheffi ciency often requires the use of advanced topologiesand home-brewed secondary synchronous rectifi cationschemes once reserved only for higher power applications.This only adds to the parts count and to the designcomplexity associated with the reference and optocouplercircuits typically used to maintain isolation. Fortunately, abreakthrough IC makes it possible to achieve both high efficiency and simplicity in a synchronous fl yback topology.The LT®3825 simplifi es and improves the performance oflow voltage, high current fl yback supplies by providingprecise synchronous rectifi er timing and eliminating theneed for optocoupler feedback while maintaining excellentregulation and superior loop response.

    標簽: 1011 DN 高效率 隔離型

    上傳時間: 2013-10-16

    上傳用戶:wayne595

  • DN387 級聯(lián)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(lián) 負載

    上傳時間: 2013-10-18

    上傳用戶:avensy

  • DN442 I2C可控降壓緊湊型同步DC/DC穩(wěn)壓器

      The LTC®3562 quad output step-down regulator is designedfor multicore handheld microprocessor applications thatoperate from a single Li-Ion battery. Its four monolithic, higheffi ciency buck regulators support Intel’s mobile CPU P-Stateand C-State energy saving operating modes. The outputvoltages are independently controllable via I2C, and eachoutput can be independently started and shut down. Designerscan choose from power saving pulse-skipping mode orBurst Mode® operation, or select low noise LDO mode. Thespace-saving LTC3562 is available in a 3mm × 3mm QFNpackage and requires few external components.

    標簽: DC 442 I2C DN

    上傳時間: 2013-10-07

    上傳用戶:1583060504

  • 三降壓穩(wěn)壓器功能的1-Wire動態(tài)可編程輸出電壓

      The LTC®3569 is a compact power solution for handhelddevices. Its tiny 3mm × 3mm QFN package includesthree buck regulators with individually programmableoutput voltages. One regulator supports load currentsup to 1200mA, while the other two support currents to600mA. Two regulators can be paralleled for increasedload capability. Each current-mode regulator is internallycompensated with excellent load and line regulation. Acomplete 2- or 3-output solution requires a minimumof external passive components.

    標簽: Wire 降壓穩(wěn)壓器 動態(tài) 可編程

    上傳時間: 2013-10-11

    上傳用戶:yxgi5

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