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  • 用fpga实现的DA转换器

    用fpga实现的DA转换器,有说明和源码,VDHL文件。\\r\\nA PLD Based Delta-Sigma DAC\\r\\nDelta-Sigma modulation is the simple, yet powerful,\\r\\ntechnique responsible for the extraordinary\\r\\nperformance and low cost of today s audio CD\\r\\nplayers. The simplest Delta-Sigm

    /dl/18209.html

    标签: fpga DA转换器

    上传时间: 2013-08-22

    上传用户:dudu1210004

  • 24位ADC在心电图中的应用笔记

    Abstract: This application note describes the essential workings of an electrocardiogram (ECG). It discussesfactors that disrupt the ECG signals and make reliable, highly-accurate electrical characterization difficult. Theindustry-standard solution for ECG electrical characterization, which uses a ...

    /dl/20641.html

    标签: ADC 24位 心电图 中的应用

    上传时间: 2013-12-23

    上传用户:sssl

  • 音频数模转换器DAC抖动的灵敏度分析

    Abstract: This application note describes how sampling clock jitter (time interval error or "TIE jitter") affectsthe performance of delta-sigma digital-to-analog converters (DACs). New insights explain the importanceof separately specifying low-frequency (< 2x passband frequency) and high-frequenc ...

    /dl/20671.html

    标签: DAC 音频 数模转换器 抖动

    上传时间: 2013-10-25

    上传用户:banyou

  • 了解模数转换器的噪声、ENOB

    Abstract: Specifications such as noise, effective number of bits (ENOB), effective resolution, and noise-free resolution inlarge part define how accurate an ADC really is. Consequently, understanding the performance metrics related to noise isone of the most difficult aspects of transitioning from ...

    /dl/21053.html

    标签: ENOB 模数转换器

    上传时间: 2013-10-16

    上传用户:x18010875091

  • 过采样∑—△ADC的原理及实现

    论述了过采样&Sigma;一AADC的基本原理及结构,分析了&Sigma;一△调制器的频域传输特性和系统的信噪比,给出了实现不同的A/D转换精度必须满足的条件和用单片机实现&Sigma;一AADC的具体方法和电路.实际使用表明,该方法测量结果可靠,具有实用价值. ...

    /dl/21174.html

    标签: ADC 过采样

    上传时间: 2013-11-17

    上传用户:gaome

  • 揭开∑—△ADC的神秘面纱

    越柬越多的应用 例如过程控制、称重等 都需要高分辨率、高集成度和低价格的ADC。 新型&Sigma; .△转换技术恰好可以满足这些要求 然而, 很多设计者对于这种转换技术并不 分了解, 因而更愿意选用传统的逐次比较ADC &Sigma;.A转换器中的模拟部分非常简单(类似j 个Ibit ADC), 而数字部分要复杂得多, 按照功能町划分为数字 ...

    /dl/21176.html

    标签: ADC

    上传时间: 2013-10-24

    上传用户:han_zh

  • 简化精密测量的高输入阻抗ADC

    &nbsp; High input impedance and a wide input range are twohighly desirable features in a precision analog-to-digitalconverter, and the LTC&reg;2449 delta-sigma ADC has both.With just a few external components, the LTC2449 formsan exceptional measurement system with very high inputimpedance and a ...

    /dl/21318.html

    标签: ADC 精密测量 高输入阻抗

    上传时间: 2013-11-02

    上传用户:ywcftc277

  • Delta Sigma的ADC桥测量技术

    &nbsp; Sensors for pressure, load, temperature, acceleration andmany other physical quantities often take the form of aWheatstone bridge. These sensors can be extremely linearand stable over time and temperature. However, mostthings in nature are only linear if you don&rsquo;t bend them toomuch. ...

    /dl/21360.html

    标签: Delta Sigma ADC 测量技术

    上传时间: 2013-11-13

    上传用户:墙角有棵树

  • 基于单片机控制的智能微波信号源发生器

    介绍了一种用单片机控制的智能微波信号源发生器,以美国国家半导体公司的低功率,高性能的&delta;-&Sigma;小数分频数字锁相环电路LMX2485和YTO为核心构成.微波信号源的工作频率范围为8~14GHz,频率分辨率为40GHz.分析了设计方案及实现过程中的关键技术,给出了部分实验结果. &nbsp; ...

    /dl/29148.html

    标签: 单片机控制 微波信号 源发生器

    上传时间: 2013-10-20

    上传用户:banlangen

  • 如何选择补偿的硅压力传感器

    Abstract: This reference design provides design ideas for a cost-effective, low-power liquid-level measurement dataacquisition system (DAS) using a compensated silicon pressure sensor and a high-precision delta-sigma ADC. Thisdocument discusses how to select the compensated silicon pressure sensor ...

    /dl/34314.html

    标签: 如何选择 补偿 硅压力传感器

    上传时间: 2013-10-08

    上传用户:sjy1991