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APPLICATION-layer

  • 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 noiserequirement has a signifi cant infl uence on the systemtopology, since the choice of topology strives to optimizethe overall signal-to-noise ratio, dynamic range andseveral other parameters. One problem in noise calculationsis translating between the various units used by thecomponents in the chain: namely the RF, IF/baseband,and digital (ADC) sections of the circuit.

    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

  • DA转换接口的射频IQ调制

      Linear Technology’s High Frequency Product lineupincludes a variety of RF I/Q modulators. The purpose ofthis application note is to illustrate the circuits requiredto interface these modulators with several popular D/Aconverters. Such circuits typically are required to maximizethe voltage transfer from the DAC to the baseband inputsof the modulator, as well as provide some reconstructionfi ltering.

    标签: DA转换 接口 射频 调制

    上传时间: 2013-10-19

    上传用户:FreeSky

  • 数据采集电路分析

      This application note features 8-, 10-, and 12-bit dataacquisition components in various circuit configurations.The circuits include battery monitoring, temperature sensing,isolated serial interfaces, and microprocessor andmicrocontroller serial and parallel interfaces. Also includedare voltage reference circuits (Application Note 42contains more voltage reference circuits).

    标签: 数据采集 电路分析

    上传时间: 2014-01-15

    上传用户:zq70996813

  • 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), and modern day op amps, including bipolar,JFET, and MOSFET amplifier technologies

    标签: LTC 运算放大器 模型

    上传时间: 2013-11-14

    上传用户:zhanditian

  • 高速放大器技术

      This publication represents the largest LTC commitmentto an application note to date. No other application noteabsorbed as much effort, took so long or cost so much.This level of activity is justified by our belief that high speedmonolithic amplifiers greatly interest users.

    标签: 高速放大器

    上传时间: 2014-01-07

    上传用户:wfl_yy

  • 行为模式和同步事件调度操作

    The Reactor design pattern handles service requests that are delivered concurrently to an application by one or more clients. Each service in an application may consist of serveral methods and is represented by a separate event handler that is responsible for dispatching service-specific requests.

    标签: 模式 操作 调度

    上传时间: 2013-10-15

    上传用户:libinxny

  • 独特的IC BUFFER增强运算放大器设计

    This note describes some of the unique IC design techniques incorporated into a fast, monolithic power buffer, the LT1010. Also, some application ideas are described such as capacitive load driving, boosting fast op amp output current and power supply circuits.

    标签: BUFFER 运算 放大器设计

    上传时间: 2013-11-12

    上传用户:671145514

  • LTC1099基于PC的数据采集板实现

    A complete design for a data acquisition card for the IBM PC is detailed in this application note. Additionally, C language code is provided to allow sampling of data at speed of more than 20kHz. The speed limitation is strictly based on the execution speed of the "C" data acquisition loop. A "Turbo" XT can acquire data at speeds greater than 20kHz. Machines with 80286 and 80386 processors can go faster than 20kHz. The computer that was used as a test bed in this application was an XT running at 4.77MHz and therefore all system timing and acquisition time measurements are based on a 4.77MHz clock speed.

    标签: 1099 LTC 数据 采集板

    上传时间: 2013-10-29

    上传用户:BOBOniu

  • LTC1099半闪速8位AD转换数字光电二极管阵列

    This application note describes a Linear Technology "Half-Flash" A/D converter, the LTC1099, being connected to a 256 element line scan photodiode array. This technology adapts itself to handheld (i.e., low power) bar code readers, as well as high resolution automated machine inspection applications..  

    标签: 1099 LTC 8位 AD转换

    上传时间: 2013-11-21

    上传用户:lchjng

  • 新型精密运算放大器应用

    Application considerations and circuits for the LT1001 and LT1002 single and dual precision amplifiers are illustrated in a number of circuits, including strain gauge signal conditioners, linearized platinum RTD circuits, an ultra precision dead zone circuit for motor servos and other examples.

    标签: 精密 运算放大器

    上传时间: 2013-10-18

    上传用户:dreamboy36