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abstract

abstract修饰符可以用于类、方法、事件和索引指示器(indexer),表示其为抽象成员,抽象方法是没有方法体的方法。抽象成员,即抽象类、抽象方法、抽象事件。
  • 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: 2013-11-12

    上传用户:dysyase

  • 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

  • 双绞线和低通滤波器降低EMI_RFI

    abstract: Alexander Graham Bell patented twisted pair wires in 1881. We still use them today because they work so well. In addition we have the advantage ofincredible computer power within our world. Circuit simulators and filter design programs are available for little or no cost. We combine the twisted pair and lowpassfilters to produce spectacular rejection of radio frequency interference (RFI) and electromagnetic interference (EMI). We also illustrate use of a precision resistorarray to produce a customizable differential amplifier. The precision resistors set the gain and common mode rejection ratios, while we choose the frequencyresponse.

    标签: EMI_RFI 双绞线 低通滤波器

    上传时间: 2014-11-26

    上传用户:Vici

  • 如何提高模幂运算速度应用笔记

    abstract: This application note describes how to improve the speed of modular exponentiation by more than 50% whenusing MAXQ® microcontrollers that have a modular arithmetic accelerator (MAA).  

    标签: 如何提高 模幂运算 应用笔记 速度

    上传时间: 2013-11-17

    上传用户:s363994250

  • 消除电源旁路滤波噪声

    abstract: If sensitive analog systems are run from one supply without the sufficient bypassing to eliminate noise,

    标签: 电源旁路 滤波噪声

    上传时间: 2013-11-23

    上传用户:qiulin1010

  • 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: 2014-01-18

    上传用户:缥缈

  • LFRD003水表自动抄表(AMR)的参考设计

    abstract: This reference design provides a complete demonstration platform for using industrial/scientific/medical radio frequency

    标签: LFRD 003 AMR 水表

    上传时间: 2013-11-09

    上传用户:LP06

  • 8位模拟数字转换器(ADC)的设计实现

    abstract: This design idea explains how to implement an 8-bit analog-to-digital converter (ADC), using a microcontroller

    标签: ADC 8位 模拟数字转换器 设计实现

    上传时间: 2013-10-30

    上传用户:爱死爱死