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  • 提高在噪声环境下的磁卡读写器(MCR)系统

    Abstract: Most magnetic read head data sheets do not fully specify the frequency-dependent components andare often vague when specifying other key parameters. In some cases, the specifications of two very similarheads from two different manufacturers might Be quite different in terms of parameters specified and omitted.The limitations in the data sheets make designing an optimum card reading system unnecessarily difficult andtime consuming. This document outlines a strategy to overcome the above shortcomings and offers guidelinesto overcome the noise issues.

    标签: MCR 噪声环境 磁卡读写器

    上传时间: 2013-11-13

    上传用户:dysyase

  • MAX5713-MAX5715数据资料

    The MAX5713/MAX5714/MAX5715 4-channel, low-power,8-/10-/12-bit, voltage-output digital-to-analog converters(DACs) include output buffers and an internal referencethat is selectable to Be 2.048V, 2.500V, or 4.096V. TheMAX5713/MAX5714/MAX5715 accept a wide supplyvoltage range of 2.7V to 5.5V with extremely low power(3mW) consumption to accommodate most low-voltageapplications. A precision external reference input allowsrail-to-rail operation and presents a 100kI (typ) load toan external reference.

    标签: MAX 5713 5715 数据资料

    上传时间: 2013-12-23

    上传用户:ArmKing88

  • 为什么我的CMOS逻辑电路烧起来了

    Abstract: What can Be simpler than designing with CMOS and BiCMOS? These technologies are very easy to use butthey still require careful design. This tutorial discusses the odd case of circuits that seem to work but exhibit somepeculiar Behaviors—including burning the designer's fingers!

    标签: CMOS 逻辑电路

    上传时间: 2013-11-03

    上传用户:dick_sh

  • 什么时候校准是重要的

    Abstract: Perfection is relative and application specific. The perfect race car is not the car we use to commute to work. We need products for everyday use that are high quality, affordable, and solidly reliable. There will Be times when we must use components that are not perfect, and this is when calibration Becomes important. Calibration techniques reduce tolerances in imperfect manufacturing equipment while maintaining affordability.

    标签: 校准

    上传时间: 2013-10-09

    上传用户:哈哈hah

  • ISM射频产品的晶体频率计算

    Abstract: Many industrial/scientific/medical (ISM) band radio frequency (RF) products use crystal oscillators to generate areference for the phase-locked loop (PLL)-based local oscillator (LO). This tutorial provides a basic description of theISM-RF Crystal Calculator, which can Be used to calculate various impacts on crystal frequency accuracy and startupmargin for such an LO.  

    标签: ISM 射频 晶体频率 计算

    上传时间: 2013-11-15

    上传用户:JasonC

  • MEMS麦克风有助于提高系统设计效率

    A MEMS microphone IC is unique among Analog Devices, Inc., products in that its input is an acoustic pressure wave. For this reason, some specifications included in the data sheets for these parts may not Be familiar, or familiar specifications may Be applied in unfamiliar ways. This application note explains the specifica-tions and terms found in MEMS microphone data sheets so that the microphone can Be appropriately designed into a system.

    标签: MEMS 麦克风 系统设计 效率

    上传时间: 2013-10-31

    上传用户:masochism

  • 如何选择合适的Logger按钮

    Abstract: For many first-time users, finding the right logger that meets their needs can Be a challenging task. In simple

    标签: Logger 如何选择 按钮

    上传时间: 2014-01-19

    上传用户:缥缈

  • 基准电压的温度漂移研究应用笔记

    Abstract: A perfect voltage reference produces a stable voltage independent of any external factors. Real-world voltagereferences, of course, are subject to errors caused by many external factors. One causeof these major errors istemperature. Without care, it is easy to operate a voltage reference outside its operating temperature range. Thisapplication note descriBes how references respond to temperature changes, and how self-heating can cause a voltagereference to operate outside its recommended temperature range. Once understood, this knowledge can then Be used toavoid making this design error.

    标签: 基准电压 温度漂移 应用笔记

    上传时间: 2013-11-08

    上传用户:xianglee

  • MAX9930在有线电视中的功能应用

    Abstract: The MAX9930–MAX9933 family of RF controllers and detector can Be used in a wide variety of applications. Anideal application is cable television (CATV) over fiBer, where either a RF controller or a RF detector controls the gain of atransimpedance amplifier (TIA). This application note shows how the MAX9930 (RF controller) can Be used as either theRF controller or detector.

    标签: 9930 MAX 有线电视

    上传时间: 2013-10-11

    上传用户:Pzj

  • 应用笔记-校准激光驱动器POT和DAC

    Abstract: A laser module designer can use a fixed resistor, mechanical pot, digital pot, or a digital-to-analogconverter (DAC) to control the laser driver's modulation and bias currents. The advantages of a programmablemethod (POT or DAC) are that the manufacturing process can Be automated and digital control can Be applied(e.g., to compensate for temperature). Using POTs can Be a more simple approach than a DAC. There can Be aslight cost advantage to using a POT, but this is usually not significant relative to other pieces of the design.Using a DAC can offer advantages, including improved linearity (translating to ease of software implementationand ability to hit the required accuracy), increased board density, a wider range of resolutions, a Betteroptimization range, ease of use with a negative voltage laser driver, and unit-to-unit consistency

    标签: POT DAC 应用笔记 校准

    上传时间: 2013-11-13

    上传用户:ca05991270