This article describes the procedure to configure and program EXAR Corporation’s PowerXR Digital Power devicesvia I2C interface. Details shown here apply to XRP7704/08/40 and XRP7713/14 devices and PowerArchitectsoftware version 3.00.
上傳時間： 2013-10-20
上傳用戶：tianyi223
Abstract: Field-programmable gate arrays (FPGAs) are used in a wide variety of applications and end markets, including digital signalprocessing, medical imaging, and high-performance computing. This application note outlines the issues related to powering FPGAs.It also discusses Maxim's solutions for powering Xilinx® FPGAs.
上傳時間： 2013-12-16
上傳用戶：haohaoxuexi
The C8051F020/1/2/3 devices are fully integrated mixed-signal System-on-a-Chip MCUs with 64 digital I/O pins (C8051F020/2) or 32 digital I/O pins (C8051F021/3). Highlighted features are listed below; refer to Table 1.1 for specific product feature selection.
上傳時間： 2013-11-08
上傳用戶：lwq11
Vishay新型功率MOSFET采用反向導引TO-252DPAK封裝
上傳時間： 2013-11-09
上傳用戶：immanuel2006
With the Altera Nios II embedded processor, you as the system designercan accelerate time-critical software algorithms by adding custominstructions to the Nios II processor instruction set. Using custominstructions, you can reduce a complex sequence of standard instructionsto a single instruction implemented in hardware. You can use this featurefor a variety of applications, for example, to optimize software innerloops for digital signal processing (DSP), packet header processing, andcomputation-intensive applications. The Nios II configuration wizard,part of the Quartus® II software’s SOPC Builder, provides a graphicaluser interface (GUI) used to add up to 256 custom instructions to theNios II processor
上傳時間： 2013-11-07
上傳用戶：swing
第一章 虛擬儀器及labview入門 １．１ 虛擬儀器概述 １．２ labview是什么？ １．３ labview的運行機制 １．３．１ labview應用程序的構成 １．３．２ labview的操作模板 １．４ labview的初步操作 １．４．１ 創建VI和調用子VI １．４．２ 程序調試技術 １．４．３ 子VI的建立 １．５ 圖表（Chart）入門 第二章 程序結構 ２．１ 循環結構 ２．１．１ While 循環 ２．１．２ 移位寄存器 ２．１．３ For循環 ２．２ 分支結構：Case ２．３ 順序結構和公式節點 ２．３．１ 順序結構 ２．３．２ 公式節點 第三章 數據類型：數組、簇和波形（Waveform） ３．１ 數組和簇 ３．２ 數組的創建及自動索引 ３．２．１ 創建數組 ３．２．２ 數組控制對象、常數對象和顯示對象 ３．２．３ 自動索引 ３．３ 數組功能函數 ３．４ 什么是多態化（Polymorphism）? ３．５ 簇 ３．５．１ 創建簇控制和顯示 ３．５．２ 使用簇與子VI傳遞數據 ３．５．３ 用名稱捆綁與分解簇 ３．５．４ 數組和簇的互換 ３．６ 波形（Waveform）類型 第四章 圖形顯示 ４．１ 概述 ４．２ Graph控件 ４．３ Chart的獨有控件 ４．４ XY圖形控件（XY Graph） ４．５ 強度圖形控件（Intensity Graph） ４．６ 數字波形圖控件（Digital Waveform Graph） ４．７ 3D圖形顯示控件（3D Graph） 第五章 字符串和文件I/ ５．１ 字符串 ５．２ 文件的輸入/輸出（I/O） ５．２．１ 文件 I/O 功能函數 ５．２．２ 將數據寫入電子表格文 ５．３ 數據記錄文件（datalog file） 第六章 數據采集 ６．１ 概述 ６．１．１ 采樣定理與抗混疊濾波器 ６．１．２ 數據采集系統的構成 ６．１．３ 模入信號類型與連接方式 ６．１．４ 信號調理 ６．１．５ 數據采集問題的復雜程度評估 ６．２ 緩沖與觸發 ６．２．１ 緩沖（Buffers） ６．２．２ 觸發（Triggering） ６．３ 模擬I/O（Analog I/O） ６．３．１ 基本概念 ６．３．２ 簡單 Analog I/O ６．３．３ 中級Analog I/O ６．４ 數字I/O（Digital I/O） ６．５ 采樣注意事項 ６．５．１ 采樣頻率的選擇 ６．５．２ ６．５．３ 多任務環境 ６．６ 附：PCI-MIO-16E-4數據采集卡簡介 第七章 信號分析與處理 ７．１ 概述 ７．２ 信號的產生 ７．３ 標準頻率 ７．４ 數字信號處理 ７．４．１ FFT變換 ７．４．２ 窗函數 ７．４．３ 頻譜分析 ７．４．４ 數字濾波 ７．４．５ 曲線擬合 第八章 labview程序設計技巧 ８．１ 局部變量和全局變量 ８．２ 屬性節點 ８．３ VI選項設置 第九章 測量專題 ９．１ 概述 ９．１．１ 模入信號類型與連接方式 ９．１．２ 信號調理 ９．２ 電壓測量 ９．３ 頻率測量 ９．４ 相位測量 ９．５ 功率測量 ９．６ 阻抗測量 ９．７ 示波器 ９．８ 波形記錄與回放 ９．９ 元件伏安特性的自動測試 ９．１０ 掃頻儀 ９．１１ 函數發生器 ９．１２ 實驗數據處理 ９．１３ 頻域分析 ９．１４ 時域分析 第十章 網絡與通訊 第十一章 儀器控制
上傳時間： 2013-11-06
上傳用戶：15070202241
ADS to MDK 轉換例程由西安畢博制作的MDK指導視頻，下載后打開Realview mdk1.htm頁面即可播放，內容包括：模擬仿真、開發環境的建立、啟動代碼概述等，是您盡快上手MDK的好工具
上傳時間： 2013-12-21
上傳用戶：dalidala
Abstract: This application note helps system designers choose the correct external components for use with the MAX16948 dualremote antenna LDO/switch, thus ensuring that automobile-regulated phantom antenna supply and output-current-monitoring circuitrymeet performance objectives. An electronic calculator is provided that helps specify the critical external components for theMAX16948, thus reducing design time. The calculator also determines the device's analog output voltage, output current-limitthreshold, and output current-sensing accuracies. The calculator includes new automatic Step By Step feature that assists designerswith component choice. To use the new automatic feature, click on the Step By Step button relative to the desired section.
上傳時間： 2013-11-04
上傳用戶：lhll918
通過比較各種隔離數字通信的特點和應用范圍，指出塑料光纖在隔離數字通信中的優勢。使用已經標準化的TOSLINK接口，有利于節省硬件開發成本和簡化設計難度。給出了塑料光纖的硬件驅動電路，說明設計過程中的注意事項，對光收發模塊的電壓特性和頻率特性進行全面試驗，并給出SPI口使用塑料光纖隔離通信的典型應用電路圖。試驗結果表明，該設計可為電力現場、電力電子及儀器儀表的設計提供參考。 Abstract: y comparing characteristics and applications area of various isolated digital communications， this article indicates advantages of plastic optical fiber in isolated digital communications. Using the standardized TOSLINK interface， it helps to control costs and difficulty in hardware development and design. Then it gives the hardware driver circuit of plastic optical fiber module， explains the noticed details in design process， gives results on the basis of the optical transceiver module voltage characteristics and frequency characteristics tests. Finally，it gives typical application circuit of the SPI communication port by using plastic optical fiber isolation .The results show that this design can be referenced for the power field， power electronics and instrumentation design.
上傳時間： 2014-01-10
上傳用戶：gundan
Single-Ended and Differential S-Parameters Differential circuits have been important incommunication systems for many years. In the past,differential communication circuits operated at lowfrequencies, where they could be designed andanalyzed using lumped-element models andtechniques. With the frequency of operationincreasing beyond 1GHz, and above 1Gbps fordigital communications, this lumped-elementapproach is no longer valid, because the physicalsize of the circuit approaches the size of awavelength.Distributed models and analysis techniques are nowused instead of lumped-element techniques.Scattering parameters, or S-parameters, have beendeveloped for this purpose [1]. These S-parametersare defined for single-ended networks. S-parameterscan be used to describe differential networks, but astrict definition was not developed until Bockelmanand others addressed this issue [2]. Bockelman’swork also included a study on how to adapt single-ended S-parameters for use with differential circuits[2]. This adaptation, called “mixed-mode S-parameters,” addresses differential and common-mode operation, as well as the conversion betweenthe two modes of operation.This application note will explain the use of single-ended and mixed-mode S-parameters, and the basicconcepts of microwave measurement calibration.
上傳時間： 2014-03-25
上傳用戶：yyyyyyyyyy
