This book is intended for the graduate or advanced undergraduate engineer. The primary motivation for developing the text was to present a complete tutorial of phase-Locked loops with a consistent notation. I believe this is critical for the practicing engineer who uses the text as a self-study guide.
標簽: Communications Phase-Locked Wireless Loops for
上傳時間: 2020-05-31
上傳用戶:shancjb
Phase–Locked loop (PLL) frequency synthesizers are commonlyfound in communication gear today. Th
上傳時間: 2013-04-24
上傳用戶:yxgi5
The MAX2870 ultra-wideband phase-Locked loop (PLL) and voltagecontrol oscillator (VCO) can operate in both integer-N and fractional-Nmodes, similar to the Analog Devices ADF4350 wideband synthesizer.This application note compares the MAX2870 and ADF4350 registers andloop filter design in detail. Users who already familiar with ADF4350 canuse this application note as a quick design reference.
上傳時間: 2014-12-23
上傳用戶:變形金剛
Abstract: Many industrial/scientific/medical (ISM) band radio frequency (RF) products use crystal oscillators to generate areference for the phase-Locked loop (PLL)-based local oscillator (LO). This tutorial provides a basic description of theISM-RF Crystal Calculator, which can be used to calculate various impacts on crystal frequency accuracy and startupmargin for such an LO.
上傳時間: 2013-11-15
上傳用戶:JasonC
Many applications require a clock signal to be synchronous, phase-Locked, or derived fromanother signal, such as a data signal or another clock. This type of clock circuit is important in
上傳時間: 2014-12-23
上傳用戶:qq21508895
模擬集成電路的設計與其說是一門技術,還不如說是一門藝術。它比數字集成電路設計需要更嚴格的分析和更豐富的直覺。嚴謹堅實的理論無疑是嚴格分析能力的基石,而設計者的實踐經驗無疑是誕生豐富直覺的源泉。這也正足初學者對學習模擬集成電路設計感到困惑并難以駕馭的根本原因。.美國加州大學洛杉機分校(UCLA)Razavi教授憑借著他在美國多所著名大學執教多年的豐富教學經驗和在世界知名頂級公司(AT&T,Bell Lab,HP)卓著的研究經歷為我們提供了這本優秀的教材。本書自2000午出版以來得到了國內外讀者的好評和青睞,被許多國際知名大學選為教科書。同時,由于原著者在世界知名頂級公司的豐富研究經歷,使本書也非常適合作為CMOS模擬集成電路設計或相關領域的研究人員和工程技術人員的參考書。... 本書介紹模擬CMOS集成電路的分析與設計。從直觀和嚴密的角度闡述了各種模擬電路的基本原理和概念,同時還闡述了在SOC中模擬電路設計遇到的新問題及電路技術的新發展。本書由淺入深,理論與實際結合,提供了大量現代工業中的設計實例。全書共18章。前10章介紹各種基本模塊和運放及其頻率響應和噪聲。第11章至第13章介紹帶隙基準、開關電容電路以及電路的非線性和失配的影響,第14、15章介紹振蕩器和鎖相環。第16章至18章介紹MOS器件的高階效應及其模型、CMOS制造工藝和混合信號電路的版圖與封裝。 1 Introduction to Analog Design 2 Basic MOS Device Physics 3 Single-Stage Amplifiers 4 Differential Amplifiers 5 Passive and Active Current Mirrors 6 Frequency Response of Amplifiers 7 Noise 8 Feedback 9 Operational Amplifiers 10 Stability and Frequency Compensation 11 Bandgap References 12 Introduction to Switched-Capacitor Circuits 13 Nonlinearity and Mismatch 14 Oscillators 15 Phase-Locked Loops 16 Short-Channel Effects and Device Models 17 CMOS Processing Technology 18 Layout and Packaging
上傳時間: 2014-12-23
上傳用戶:杜瑩12345
Telecommunication, satellite links and set-top boxes allrequire tuning a high frequency oscillator. The actualtuning element is a varactor diode, a 2-terminal device thatchanges capacitance as a function of reverse bias voltage.1 The oscillator is part of a frequency synthesizingloop, as detailed in Figure 1. A phase Locked loop (PLL)compares a divided down representation of the oscillatorwith a frequency reference. The PLL’s output is levelshifted to provide the high voltage necessary to bias thevaractor, which closes a feedback loop by voltage tuningthe oscillator. This loop forces the voltage controlledoscillator (VCO) to operate at a frequency determined bythe frequency reference and the divider’s division ratio.
上傳時間: 2013-12-20
上傳用戶:ABCDE
常用的嵌入式處理器有ARM、MIPS、PowerPC、X86、68K/Cold fire等,MIPS是Microprocessor without Inter-Locked Pipeline Stages的縮寫,是由MIPS技術公司開發的一種處理器內核標準。目前有32位和64位MIPS芯片。PowerPC是早期Motorola公司和IBM公司聯合為Apple公司的MAC機開發的CPU芯片,商標權同時屬于IBM和Motorola兩家公司,并一度成為他們的主導產品。X86系列處理器起源于Intel架構的8080,然后發展出286、386、486直到現在的奔騰處理器乃至雙核處理器等。從嵌入式市場來看,486DX也應該是和ARM、68K、MIPS和SuperH齊名的5大嵌入式處理器之一。Motorola 68K是出現比較早的一款嵌入式處理器,采用的是CISC結構。
上傳時間: 2013-10-22
上傳用戶:dddddd55
禁止在TextBox中輸入 作者:土人 方法一:(有光標閃爍,輸入、刪除等操作無效) Text1.Locked = True 方法二:(無光標閃爍,不能輸入、刪除,界面變色、文字反白) Text1.Enabled = False 方法三:(有光標閃爍,可刪除,不能輸入) 此法用兩個API函數,略為復雜些。請在標準工程添加兩個按鈕和一個文本框:
上傳時間: 2013-11-30
上傳用戶:royzhangsz
DDR SDRAM控制器的VHDL源代碼,含詳細設計文檔。 The DDR, DCM, and SelectI/O™ features in the Virtex™ -II architecture make it the perfect choice for implementing a controller of a Double Data Rate (DDR) SDRAM. The Digital Clock Manager (DCM) provides the required Delay Locked Loop (DLL), Digital Phase Shift (DPS), and Digital Frequency Synthesis (DFS) functions. This application note describes a controller design for a 16-bit DDR SDRAM. The application note and reference design are enhanced versions of XAPP200 targeted to the Virtex-II series of FPGAs. At a clock rate of 133 MHz, 16-bit data changes at both clock edges. The reference design is fully synthesizable and achieves 133 MHz performance with automatic place and route tools.
上傳時間: 2014-11-01
上傳用戶:l254587896