Download or read book Improved Phase Detection for Digital Phase locked Loops written by Amer Samarah and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital PLLs (DPLLs) have emerged as reliable alternatives to analog PLLs since they are more robust in the presence of process variations and mismatch and do not need a large on-chip capacitor to realize a loop filter. However, a DPLL employs a time to-digital converter (TDC) to resolve the phase error in quantized steps which shows up as deterministic jitter in the output clock. Similarly, a DPLL tunes a digitally controlled-oscillator (DCO) in discrete frequency steps which adds an extra source of jitter. Furthermore, the quantized response of the DPLL may cause chaotic limit cycles in some configurations. This thesis presents innovations to make DPLLs suitable for a wide range of applications. First, a novel low-power TDC with 4 ps resolution, approximately an order of magnitude better than an inverter delay in the 0.13 μm CMOS technology, is enabled by employing a highly digital coarse-fine TDC with a calibrated coarse stage followed by a fine stochastic stage. On power-up, on-chip calibration algorithm based on a balanced mean code density test is used to minimize nonlinearities in the coarse TDC, reducing worst-case spurs from -54.4 dBc to -70.55 dBc at 1.995 GHz operation. The thesis also investigates dead-zone behavior in DPLLs caused by the quantization effect of the TDC. It results in chaotic limit cycle behavior; producing higher than expected in-band phase noise and strong spurious tones. To alleviate this problem, a noise-shaped offset is added to the phase error to keep the TDC active and away from the dead-zone. The proposed solution is demonstrated in a 0.13 μm CMOS prototype achieving consistent low in-band noise. A binary bang-bang phase detector (BBPD) is a commonly used alternative to the power hungry TDC. However, BBPD based DPLLs have limited frequency pull-in and capture range that are traded off for steady-state jitter performance. The thesis proposes an alternative to BBPD by using a multi-phase bang-bang detector (MPBBD). Also, the thesis presents a rigorous mathematical analysis of the cycle slipping behavior to quantify the pull-in and capture range as well as the locking time for DPLL with either BBPD or MPBBD. The final formula gives a useful insight into the effect of various loop parameters on the cycle slipping behavior. A DPLL architecture with a MPBBD is presented and implemented in 28 nm CMOS technology to improve the pull-in and capture range while not affecting the steady-state jitter performance.

Download or read book Phase Locked Loops for Wireless Communications written by Donald R. Stephens and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase-Locked Loops for Wireless Communications: Digitial, Analog and Optical Implementations, Second Edition presents a complete tutorial of phase-locked loops from analog implementations to digital and optical designs. The text establishes a thorough foundation of continuous-time analysis techniques and maintains a consistent notation as discrete-time and non-uniform sampling are presented. New to this edition is a complete treatment of charge pumps and the complementary sequential phase detector. Another important change is the increased use of MATLAB®, implemented to provide more familiar graphics and reader-derived phase-locked loop simulation. Frequency synthesizers and digital divider analysis/techniques have been added to this second edition. Perhaps most distinctive is the chapter on optical phase-locked loops that begins with sections discussing components such as lasers and photodetectors and finishing with homodyne and heterodyne loops. Starting with a historical overview, presenting analog, digital, and optical PLLs, discussing phase noise analysis, and including circuits/algorithms for data synchronization, this volume contains new techniques being used in this field. Highlights of the Second Edition: Development of phase-locked loops from analog to digital and optical, with consistent notation throughout; Expanded coverage of the loop filters used to design second and third order PLLs; Design examples on delay-locked loops used to synchronize circuits on CPUs and ASICS; New material on digital dividers that dominate a frequency synthesizer's noise floor. Techniques to analytically estimate the phase noise of a divider; Presentation of optical phase-locked loops with primers on the optical components and fundamentals of optical mixing; Section on automatic frequency control to provide frequency-locking of the lasers instead of phase-locking; Presentation of charge pumps, counters, and delay-locked loops. The Second Edition includes the essential topics needed by wireless, optics, and the traditional phase-locked loop specialists to design circuits and software algorithms. All of the material has been updated throughout the book.

Download or read book Monolithic Phase Locked Loops and Clock Recovery Circuits written by Behzad Razavi and published by John Wiley & Sons. This book was released on 1996-04-18 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring an extensive 40 page tutorial introduction, this carefully compiled anthology of 65 of the most important papers on phase-locked loops and clock recovery circuits brings you comprehensive coverage of the field-all in one self-contained volume. You'll gain an understanding of the analysis, design, simulation, and implementation of phase-locked loops and clock recovery circuits in CMOS and bipolar technologies along with valuable insights into the issues and trade-offs associated with phase locked systems for high speed, low power, and low noise.

Download or read book A Digital Phase Locked Loop Based Signal and Symbol Recovery System for Wireless Channel written by Basab Bijoy Purkayastha and published by . This book was released on 2015-02-28 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Digital Phase Lock Loops written by Saleh R. Al-Araji and published by Springer Science & Business Media. This book was released on 2007-04-29 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This exciting new book covers various types of digital phase lock loops. It presents a comprehensive coverage of a new class of digital phase lock loops called the time delay tanlock loop (TDTL). It also details a number of architectures that improve the performance of the TDTL through adaptive techniques that overcome the conflicting requirements of the locking rage and speed of acquisition.

Download or read book Digital Phase locked loop Speed Sensor for Accuracy Improvement in Analog Speed Controls written by Arthur G. Birchenough and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Digital Phase Locked Loop based Signal and Symbol Recovery System for Wireless Channel written by Basab Bijoy Purkayastha and published by Springer. This book was released on 2015-01-29 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book reports two approaches of implementation of the essential components of a Digital Phase Locked Loop based system for dealing with wireless channels showing Nakagami-m fading. It is mostly observed in mobile communication. In the first approach, the structure of a Digital phase locked loop (DPLL) based on Zero Crossing (ZC) algorithm is proposed. In a modified form, the structure of a DPLL based systems for dealing with Nakagami-m fading based on Least Square Polynomial Fitting Filter is proposed, which operates at moderate sampling frequencies. A sixth order Least Square Polynomial Fitting (LSPF) block and Roots Approximator (RA) for better phase-frequency detection has been implemented as a replacement of Phase Frequency Detector (PFD) and Loop Filter (LF) of a traditional DPLL, which has helped to attain optimum performance of DPLL. The results of simulation of the proposed DPLL with Nakagami-m fading and QPSK modulation is discussed in detail which shows that the proposed method provides better performance than existing systems of similar type.

Download or read book Phase Locked Loops written by John L. Stensby and published by CRC Press. This book was released on 1997-06-19 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of phase-locked loops play an increasingly important role in modern electronic systems, and the last 25 years have seen new developments in the underlying theories as well. Phase-Locked Loops presents the latest information on the basic theory and applications of PLLs. Organized in a logical format, it first introduces the subject in a qualitative manner and discusses key applications. Next, it develops basic models for components of a PLL, and these are used to develop a basic PLL model. The text then discusses both linear and nonlinear methods that are used to analyze the basic PLL model. This book includes extensive coverage of the nonlinear behavior of phase-locked loops, an important area of this field and one where exciting new research is being performed. No other book available covers this critical area in such careful detail. Improvements brought about by the advent of the personal computer, especially in the use of numerical results, are integrated into the text. This book also focuses on PLL component technologies used in system implementation.

Download or read book Phase Locking in High Performance Systems written by Behzad Razavi and published by Wiley-IEEE Press. This book was released on 2003-02-27 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive coverage of recent developments in phase-locked loop technology The rapid growth of high-speed semiconductor and communication technologies has helped make phase-locked loops (PLLs) an essential part of memories, microprocessors, radio-frequency (RF) transceivers, broadband data communication systems, and other burgeoning fields. Complementing his 1996 Monolithic Phase-Locked Loops and Clock Recovery Circuits (Wiley-IEEE Press), Behzad Razavi now has collected the most important recent writing on PLL into a comprehensive, self-contained look at PLL devices, circuits, and architectures. Phase-Locking in High-Performance Systems: From Devices to Architectures' five original tutorials and eighty-three key papers provide an eminently readable foundation in phase-locked systems. Analog and digital circuit designers will glean a wide range of practical information from the book's . . . * Tutorials dealing with devices, delay-locked loops (DLLs), fractional-N synthesizers, bang-bang PLLs, and simulation of phase noise and jitter * In-depth discussions of passive devices such as inductors, transformers, and varactors * Papers on the analysis of phase noise and jitter in various types of oscillators * Concentrated examinations of building blocks, including the design of oscillators, frequency dividers, and phase/frequency detectors * Articles addressing the problem of clock generation by phase-locking for timing and digital applications, RF synthesis, and the application of phase-locking to clock and data recovery circuits In tandem with its companion volume, Phase-Locking in High-Performance Systems: From Devices to Architectures is a superb reference for anyone working on, or seeking to better understand, this rapidly-developing and increasingly central technology.

Download or read book Digital Phase locked Loops for Multi GHz Clock Generation written by Volodymyr Kratyuk and published by . This book was released on 2007 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic design procedure for a second-order digital phase-locked loop with a linear phase detector is proposed. The design procedure is based on the analogy between a type-II second-order analog PLL and a digital PLL. A new digital PLL architecture featuring a linear phase detector which eliminates the noise-bandwidth tradeoff is presented. It employs a stochastic time-to-digital converter (STDC) and a high frequency delta-sigma dithering to achieve a wide PLL bandwidth and a low jitter. The measured results obtained from the prototype chip demonstrate a significant jitter improvement with the STDC.

Download or read book Phaselock Techniques written by Floyd M. Gardner and published by John Wiley & Sons. This book was released on 2005-08-08 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: A greatly revised and expanded account of phaselock technology The Third Edition of this landmark book presents new developments in the field of phaselock loops, some of which have never been published until now. Established concepts are reviewed critically and recommendations are offered for improved formulations. The work reflects the author's own research and many years of hands-on experience with phaselock loops. Reflecting the myriad of phaselock loops that are now found in electronic devices such as televisions, computers, radios, and cell phones, the book offers readers much new material, including: * Revised and expanded coverage of transfer functions * Two chapters on phase noise * Two chapters examining digital phaselock loops * A chapter on charge-pump phaselock loops * Expanded discussion of phase detectors and of oscillators * A chapter on anomalous phaselocking * A chapter on graphical aids, including Bode plots, root locus plots, and Nichols charts As in the previous editions, the focus of the book is on underlying principles, which remain valid despite technological advances. Extensive references guide readers to additional information to help them explore particular topics in greater depth. Phaselock Techniques, Third Edition is intended for practicing engineers, researchers, and graduate students. This critically acclaimed book has been thoroughly updated with new information and expanded for greater depth.

Download or read book Design and Fabrication of a Controller for a Digital Phase Locked Loop written by Donald Troha and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A controller for an all digital phase locked loop which operates by pulse addition and removal is investigated. Being a first order system, the digital phase locked loop is more limited in regard to parameter controls than its second order analog counterpart. A loop with a fast lock time generally has poor phase/frequency accuracy, while a loop programmed for high accuracy will have slow lock time. Given that the digital phase locked loop is digitally programmable, a set of parameters may be selected which will minimize the lock time of the loop. Once the loop is locked, the parameters may be changed to alter the loop bandwidth and increase the loop accuracy. A controller circuit has been designed to adjust loop parameters in such a manner thereby optimizing loop performance. The exclusive-OR phase detector which is commonly used with the pulse addition/removal type digital phase locked loop has a phase lock range of plus or minus a quarter of a cycle. This work investigates the loop response to an incoming signal which is outside of the phase lock range of phase detector and inside the frequency lock range of the loop. A sub-circuit is proposed to improve the lock time of the loop when it encounters an incoming signal with these characteristics. The proposed circuits were designed using integrated circuit layout tools and submitted to a semiconductor manufacturer for fabrication. The controller concept and results of simulations and prototype experiments are presented.

Download or read book Phase Locked Loops 6 e written by Roland E. Best and published by McGraw Hill Professional. This book was released on 2007-08-13 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Definitive Introduction to Phase-Locked Loops, Complete with Software for Designing Wireless Circuits! The Sixth Edition of Roland Best's classic Phase-Locked Loops has been updated to equip you with today's definitive introduction to PLL design, complete with powerful PLL design and simulation software written by the author. Filled with all the latest PLL advances, this celebrated sourcebook now includes new chapters on frequency synthesis...CAD for PLLs...mixed-signal PLLs...all-digital PLLs...and software PLLs_plus a new collection of sample communications applications. An essential tool for achieving cutting-edge PLL design, the Sixth Edition of Phase-Locked Loops features: A wealth of easy-to-use methods for designing phase-locked loops Over 200 detailed illustrations New to this edition: new chapters on frequency synthesis, including fractional-N PLL frequency synthesizers using sigma-delta modulators; CAD for PLLs, mixed-signal PLLs, all-digital PLLs, and software PLLs; new PLL communications applications, including an overview on digital modulation techniques Inside this Updated PLL Design Guide • Introduction to PLLs • Mixed-Signal PLL Components • Mixed-Signal PLL Analysis • PLL Performance in the Presence of Noise • Design Procedure for Mixed-Signal PLLs • Mixed-Signal PLL Applications • Higher Order Loops • CAD and Simulation of Mixed-Signal PLLs • All-Digital PLLs (ADPLLs) • CAD and Simulation of ADPLLs • The Software PLL (SPLL) • The PLL in Communications • State-of-the-Art Commercial PLL Integrated Circuits • Appendices: The Pull-In Process • The Laplace Transform • Digital Filter Basics • Measuring PLL Parameters

Download or read book Official Gazette of the United States Patent and Trademark Office written by United States. Patent and Trademark Office and published by . This book was released on 2001 with total page 1412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design of Phase locked Loop Circuits with Experiments written by H. M. Berlin and published by . This book was released on 1985 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: The basic phase-locked loop principle. Performing the experiments. The phase detector. The voltage-controled oscillator. The loop filter and loop response. Digital frequency synthesizers. Monolithic integrated circuits and applications. Derivations. Datasheets. Breadbording aids. Symbols used.

Download or read book Phase locked Loops written by Roland E. Best and published by McGraw-Hill Companies. This book was released on 1993 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unique book/disk set that makes PLL circuit design easier than ever. Table of Contents: PLL Fundamentals; Classification of PLL Types; The Linear PLL (LPLL); The Classical Digital PLL (DPLL); The All-Digital PLL (ADPLL); The Software PLL (SPLL); State Of The Art of Commercial PLL Integrated Circuits; Appendices; Index. Includes a 5 1/4" disk. 100 illustrations.

Download or read book Phase Locked Loops written by Woogeun Rhee and published by John Wiley & Sons. This book was released on 2023-12-19 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase-Locked Loops Discover the essential materials for phase-locked loop circuit design, from fundamentals to practical design aspects A phase-locked loop (PLL) is a type of circuit with a range of important applications in telecommunications and computing. It generates an output signal with a controlled relationship to an input signal, such as an oscillator which matches the phases of input and output signals. This is a critical function in coherent communication systems, with the result that the theory and design of these circuits are essential to electronic communications of all kinds. Phase-Locked Loops: System Perspectives and Circuit Design Aspects provides a concise, accessible introduction to PLL design. It introduces readers to the role of PLLs in modern communication systems, the fundamental techniques of phase-lock circuitry, and the possible applications of PLLs in a wide variety of electronic communications contexts. The first book of its kind to incorporate modern architectures and to balance theoretical fundamentals with detailed design insights, this promises to be a must-own text for students and industry professionals. The book also features: Coverage of PLL basics with insightful analysis and examples tailored for circuit designers Applications of PLLs for both wireless and wireline systems Practical circuit design aspects for modern frequency generation, frequency modulation, and clock recovery systems Phase-Locked Loops is essential for graduate students and advanced undergraduates in integrated circuit design, as well researchers and engineers in electrical and computing subjects.