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Clocking

  • 数字集成电路设计Digital Integrated Circuit Design

      This unique guide to designing digital VLSI circuits takes a top-down approach, reflecting the natureof the design process in industry. Starting with architecture design, the book explains the why andhow of digital design, using the physics that designers need to know, and no more.Covering system and component aspects, design verification, VHDL modelling, Clocking, signalintegrity, layout, electricaloverstress, field-programmable logic, economic issues, and more, thescope of the book is singularly comprehensive.

    标签: Integrated Digital Circuit Design

    上传时间: 2013-11-04

    上传用户:life840315

  • 逐次逼近式AD转换器研究

    A tutorial on SAR type A/D converters, this note contains detailed information on several 12-bit circuits. Comparator, Clocking, and preamplifier designs are discussed. A final circuit gives a 12-bit conversion in 1.8µs. Appended sections explain the basic SAR technique and explore D/A considerations.

    标签: 逐次逼近 AD转换器

    上传时间: 2014-01-21

    上传用户:钓鳌牧马

  • Clocking Options for Stellaris

    The main oscillator allows either a crystal or single-ended input clock signal. Cost-sensitiveapplications typically use an external crystal with the on-chip oscillator circuit since it is the mostcost-effective solution. It is also possible to use the internal oscillator to clock the device after theboot process has completed.

    标签: Stellaris Clocking Options for

    上传时间: 2013-10-14

    上传用户:pol123

  • 用单片机配置FPGA—PLD设计技巧

    用单片机配置FPGA—PLD设计技巧 Configuration/Program Method for Altera Device Configure the FLEX Device You can use any Micro-Controller to configure the FLEX device–the main idea is Clocking in ONE BITof configuration data per CLOCK–start from the BIT 0􀂄The total Configuration time–e.g. 10K10 need 15K byte configuration file•calculation equation–10K10* 1.5= 15Kbyte–configuration time for the file itself•15*1024*8*clock = 122,880Clock•assume the CLOCK is 4MHz•122,880*1/4Mhz=30.72msec

    标签: FPGA PLD 用单片机 设计技巧

    上传时间: 2013-10-09

    上传用户:a67818601

  • XAPP1065 - 利用Spartan-6 FPGA设计扩频时钟发生器

      Consumer display applications commonly use high-speed LVDS interfaces to transfer videodata. Spread-spectrum Clocking can be used to address electromagnetic compatibility (EMC)issues within these consumer devices. This application note uses Spartan®-6 FPGAs togenerate spread-spectrum clocks using the DCM_CLKGEN primitive.

    标签: Spartan XAPP 1065 FPGA

    上传时间: 2014-12-28

    上传用户:yan2267246

  • 带有SerDes接口的PLB千兆位级以太网MAC

    This application note describes a reference system which illustrates how to build an embeddedPowerPC® system using the Xilinx 1-Gigabit Ethernet Media Access Controller processor core.This system has the PLB_Gemac configured to use Scatter/Gather Direct Memory Access andthe Serializer/Deserializer (SerDes) interface. This application note describes how to set up thespecific Clocking structure required for the SerDes interface and the constraints to be added tothe UCF file. This reference system is complete with a standalone software application to testsome of the main features of this core, including access to registers, DMA capabilities, transmitand receive in loopback mode. This reference system is targeted for the ML300 evaluationboard.

    标签: SerDes PLB MAC 接口

    上传时间: 2013-11-01

    上传用户:truth12

  • XAPP1065 - 利用Spartan-6 FPGA设计扩频时钟发生器

      Consumer display applications commonly use high-speed LVDS interfaces to transfer videodata. Spread-spectrum Clocking can be used to address electromagnetic compatibility (EMC)issues within these consumer devices. This application note uses Spartan®-6 FPGAs togenerate spread-spectrum clocks using the DCM_CLKGEN primitive.

    标签: Spartan XAPP 1065 FPGA

    上传时间: 2013-11-01

    上传用户:hjkhjk

  • tas3204

    The TAS3204 is a highly-integrated audio system-on-chip (SOC) consisting of a fully-programmable, 48-bit digital audio processor, a 3:1 stereo analog input MUX, four ADCs, four DACs, and other analog functionality. The TAS3204 is programmable with the graphical PurePath Studio™ suite of DSP code development software. PurePath Studio is a highly intuitive, drag-and-drop environment that minimizes software development effort while allowing the end user to utilize the power and flexibility of the TAS3204’s digital audio processing core. TAS3204 processing capability includes speaker equalization and crossover, volume/bass/treble control, signal mixing/MUXing/splitting, delay compensation, dynamic range compression, and many other basic audio functions. Audio functions such as matrix decoding, stereo widening, surround sound virtualization and psychoacoustic bass boost are also available with either third-party or TI royalty-free algorithms. The TAS3204 contains a custom-designed, fully-programmable 135-MHz, 48-bit digital audio processor. A 76-bit accumulator ensures that the high precision necessary for quality digital audio is maintained during arithmetic operations. Four differential 102 dB DNR ADCs and four differential 105 dB DNR DACs ensure that high quality audio is maintained through the whole signal chain as well as increasing robustness against noise sources such as TDMA interference. The TAS3204 is composed of eight functional blocks: Clocking System Digital Audio Interface Analog Audio Interface Power supply Clocks, digital PLL I2C control interface 8051 MCUcontroller Audio DSP – digital audio processing 特性 Digital Audio Processor Fully Programmable With the Graphical, Drag-and-Drop PurePath Studio™ Software Development Environment 135-MHz Operation 48-Bit Data Path With 76-Bit Accumulator Hardware Single-Cycle Multiplier (28 × 48)

    标签: 3204 tas

    上传时间: 2016-05-06

    上传用户:fagong

  • Vivado时序约束

    Synopsys' widely-used design constraints format, known as SDC, describes the "design intent" and surrounding constraints for synthesis, Clocking, timing, power, test and environmental and operating conditions. SDC has been in use and evolving for more than 20 years, making it the most popular and proven format for describing design constraints. Essentially all synthesized designs use SDC and numerous EDA companies have translators that can read and process SDC.

    标签: Vivado 时序约束

    上传时间: 2018-07-13

    上传用户:yalsim

  • vivado集成开发环境时序约束介绍

    本文主要介绍如何在Wado设计套件中进行时序约束,原文出自 xilinx中文社区。1 Timing Constraints in Vivado-UCF to xdcVivado软件相比于sE的一大转变就是约束文件,5E软件支持的是UcF(User Constraints file,而 Vivado软件转换到了XDc(Xilinx Design Constraints)。XDC主要基于SDc(Synopsys Design Constraints)标准,另外集成了Xinx的一些约束标准可以说这一转变是xinx向业界标准的靠拢。Altera从 TimeQuest开始就一直使用SDc标准,这一改变,相信对于很多工程师来说是好事,两个平台之间的转换会更加容易些。首先看一下业界标准SDc的原文介绍:Synopsys widely-used design constraints format, known as sDc, describes the design intent"and surrounding constraints for synthesis, Clocking, timing, power, test and environmental and operating conditions. sDc has been in use and evolving for more than 20 years, making it the most popular and proven format for describing design constraints. Essentially all synthesized designs use SDc and numerous EDa companies have translators that can read and process sDc

    标签: vivado

    上传时间: 2022-03-26

    上传用户:kid1423