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PROVIDED 215

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  • 扩频通信芯片STEL-2000A的FPGA实现

    针对传统集成电路(ASIC)功能固定、升级困难等缺点,利用FPGA实现了扩频通信芯片STEL-2000A的核心功能。使用ISE提供的DDS IP核实现NCO模块,在下变频模块调用了硬核乘法器并引入CIC滤波器进行低通滤波,给出了DQPSK解调的原理和实现方法,推导出一种简便的引入?仔/4固定相移的实现方法。采用模块化的设计方法使用VHDL语言 ...

    /dl/32653.html

    标签: STEL 2000 FPGA 扩频通信

    上传时间: 2013-11-06

    上传用户:liu123

  • MAX16948双遥控天线LDO开关

      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 elec ...

    /dl/36479.html

    标签: 16948 MAX LDO 遥控天线

    上传时间: 2013-11-04

    上传用户:lhll918

  • ZigBee无线传感网络的路由协议研究

     为满足无线网络技术具有低功耗、节点体积小、网络容量大、网络传输可靠等技术要求,设计了一种以MSP430单片机和CC2420射频收发器组成的无线传感节点。通过分析其节点组成,提出了ZigBee技术中的几种网络拓扑形式,并研究了ZigBee路由算法。针对不同的传输要求形式选用不同的网络拓扑形式可以尽大可能地减少系统成本。 ...

    /dl/36488.html

    标签: ZigBee 无线传感网络 协议研究 路由

    上传时间: 2013-10-09

    上传用户:robter

  • MAX20021,MAX20022示例PCB布局指南

    Abstract: This application note explains how to layout the MAX20021/MAX20022 automotive quad powermanagementICs (PMICs) to maximize performance and minimize emissions. Example images of a fourlayerlayout are provided.

    /dl/38886.html

    标签: MAX 20021 20022 PCB

    上传时间: 2013-10-10

    上传用户:dljwq

  • XAPP098 - Spartan FPGA低成本、高效率串行配置

    This application note shows how to achieve low-cost, efficient serial configuration for Spartan FPGA designs. The approachrecommended here takes advantage of unused resources in a design, thereby reducing the cost, part count, memory size,and board space associated with the serial configuration ci ...

    /dl/40059.html

    标签: Spartan XAPP FPGA 098

    上传时间: 2013-11-01

    上传用户:wojiaohs

  • XAPP143-利用Verilog来创建CPLD设计

    This Application Note covers the basics of how to use Verilog as applied to ComplexProgrammable Logic Devices. Various combinational logic circuit examples, such asmultiplexers, decoders, encoders, comparators and adders are provided. Synchronous logiccircuit examples, such as counters and state m ...

    /dl/40069.html

    标签: Verilog XAPP CPLD 143

    上传时间: 2013-11-11

    上传用户:y13567890

  • Virtex-6 FPGA PCB设计手册

    Xilinx is disclosing this user guide, manual, release note, and/or specification (the "Documentation") to you solely for use in the developmentof designs to operate with Xilinx hardware devices. You may not reproduce, distribute, republish, download, display, post, or transmit theDocumentation in ...

    /dl/40076.html

    标签: Virtex FPGA PCB 设计手册

    上传时间: 2013-11-11

    上传用户:zwei41

  • CPLD库指南

    Xilinx is disclosing this user guide, manual, release note, and/or specification (the “Documentation”) to you solely for use in the development of designs to operate with Xilinx hardware devices. You may not reproduce, distribute, republish, download, display, post, or transmit the D ...

    /dl/40193.html

    标签: CPLD

    上传时间: 2014-12-05

    上传用户:qazxsw

  • 扩频通信芯片STEL-2000A的FPGA实现

    针对传统集成电路(ASIC)功能固定、升级困难等缺点,利用FPGA实现了扩频通信芯片STEL-2000A的核心功能。使用ISE提供的DDS IP核实现NCO模块,在下变频模块调用了硬核乘法器并引入CIC滤波器进行低通滤波,给出了DQPSK解调的原理和实现方法,推导出一种简便的引入?仔/4固定相移的实现方法。采用模块化的设计方法使用VHDL语言 ...

    /dl/40234.html

    标签: STEL 2000 FPGA 扩频通信

    上传时间: 2013-11-19

    上传用户:neu_liyan

  • 智能照明控制器测量环境光线

    Abstract: This application note explains how to design an intelligent lighting controller that senses and measures the ambient lightlevel with an ambient light sensor (ALS). Equipped with a real-time clock (RTC), the controller also knows when to turn lighting on oroff at specified times. The syst ...

    /dl/41783.html

    标签: 智能照明控制器 测量 环境光线

    上传时间: 2013-11-18

    上传用户:AbuGe