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  • 小型化数字测频接收机

    本文介绍了AD公司的RF/IF相位和幅度测量芯片AD8302,并以此芯片为核心,组合功分器、延迟线和FPGA芯片设计了瞬时测频接收机,改进了传统的设计方案。依照设计制作了测频系统,并对系统整体性能进行了测试,测试结果表明本系统可以准确测量1.4~2.0 GHz范围内的信号,测频精度为10 MHz。 ...

    /dl/20378.html

    标签: 数字测频 接收机

    上传时间: 2013-10-26

    上传用户:zsjzc

  • ADI处理器实用丛书-高速设计技术

    本书内容包括三大部分:第1 部分从运算放大器的基本概念和理论出发,重点介绍了运算放大器的原理与设计,以及在各种电子系统中的应用,包括视频应用、RF/IF 子系统(乘法器、调制器和混频器)等;第2 部分主要介绍了高速采样和高速ADC 及其应用、高速DAC 及其应用、以及DDS 系统与接收机子系统等;第3 部分介绍了有关高速硬件 ...

    /dl/21005.html

    标签: ADI 处理器 高速设计

    上传时间: 2013-11-16

    上传用户:qitiand

  • 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,

    /dl/21021.html

    标签: 电源旁路 滤波噪声

    上传时间: 2013-11-23

    上传用户:qiulin1010

  • 简单的多输出范围16位DAC设计

      Precision 16-bit analog outputs with softwareconfigurableoutput ranges are often needed in industrialprocess control equipment, analytical and scientificinstruments and automatic test equipment. In the past,designing a universal output module was a daunting taskand the cost and PCB real e ...

    /dl/21293.html

    标签: DAC 输出范围

    上传时间: 2014-12-23

    上传用户:如果你也听说

  • RF至数字接收器的信号链噪声分析

      Designers of signal receiver systems often need to performcascaded chain analysis of system performancefrom the antenna all the way to the ADC. Noise is a criticalparameter in the chain analysis because it limits theoverall sensitivity of the receiver. An application’s noiserequirem ...

    /dl/21323.html

    标签: 数字接收器 信号链 噪声分析

    上传时间: 2014-12-05

    上传用户:cylnpy

  • 使用LTC运算放大器宏模型

      This application note is an overview discussion of theLinear Technology SPICE macromodel library. It assumeslittle if any prior knowledge of this software library or itshistory. However, it does assume familiarity with both theanalog simulation program SPICE (or one of its manyderivatives ...

    /dl/21339.html

    标签: LTC 运算放大器 模型

    上传时间: 2013-11-14

    上传用户:zhanditian

  • Delta Sigma的ADC桥测量技术

      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’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

  • Creating Safe State Machines(Mentor)

      Finite state machines are widely used in digital circuit designs. Generally, when designing a state machine using an HDL, the synthesis tools will optimize away all states that cannot be reached and generate a highly optimized circuit. Sometimes, however, the optimization is not acceptabl ...

    /dl/21526.html

    标签: Creating Machines Mentor State

    上传时间: 2013-10-08

    上传用户:wangzhen1990

  • DAC34H84 HD2 性能优化与PCB布局建议

    DAC34H84 是一款由德州仪器(TI)推出的四通道、16 比特、采样1.25GSPS、功耗1.4W 高性能的数模转换器。支持625MSPS 的数据率,可用于宽带与多通道系统的基站收发信机。由于无线通信技术的高速发展与各设备商基站射频拉远单元(RRU/RRH)多种制式平台化的要求,目前收发信机单板支持的发射信号频谱越来越宽,而中频频率一 ...

    /dl/21653.html

    标签: DAC 34H H84 HD2

    上传时间: 2013-10-23

    上传用户:lalalal

  • Solutions for LED Driver Overvoltage Protection

    Boost LED drivers are often used to drive LEDs in series. If an LED fails while open,overvoltage protection (OVP) is necessary to avoid the damage to a boost integrated circuit (IC) or output capacitor. This application report presents the solutions to increase the TPS61043 LED driver OVP threshold.

    /dl/22641.html

    标签: Overvoltage Protection Solutions Driver

    上传时间: 2013-10-14

    上传用户:jiangfire