Phase-Locked Frequency Generation and Clocking

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Author :
Publisher : Institution of Engineering and Technology
ISBN 13 : 1785618857
Total Pages : 736 pages
Book Rating : 4.7/5 (856 download)

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Book Synopsis Phase-Locked Frequency Generation and Clocking by : Woogeun Rhee

Download or read book Phase-Locked Frequency Generation and Clocking written by Woogeun Rhee and published by Institution of Engineering and Technology. This book was released on 2020-06-09 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase-Locked Frequency Generation and Clocking covers essential topics and issues in current Phase-Locked Loop design, from a light touch of fundamentals to practical design aspects. Both wireless and wireline systems are considered in the design of low noise frequency generation and clocking systems. Topics covered include architecture and design, digital-intensive Phase-Locked Loops, low noise frequency generation and modulation, clock-and-data recovery, and advanced clocking and clock generation systems. The book not only discusses fundamental architectures, system design considerations, and key building blocks but also covers advanced design techniques and architectures in frequency generation and clocking systems. Readers can expect to gain insights into phase-locked clocking as well as system perspectives and circuit design aspects in modern Phase-Locked Loop design.

Phase-Locked Loops

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119909066
Total Pages : 389 pages
Book Rating : 4.1/5 (199 download)

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Book Synopsis Phase-Locked Loops by : Woogeun Rhee

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.

Phase-Locking in High-Performance Systems

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Author :
Publisher : Wiley-IEEE Press
ISBN 13 : 9780471447276
Total Pages : 736 pages
Book Rating : 4.4/5 (472 download)

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Book Synopsis Phase-Locking in High-Performance Systems by : Behzad Razavi

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.

Monolithic Phase-Locked Loops and Clock Recovery Circuits

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 9780780311497
Total Pages : 516 pages
Book Rating : 4.3/5 (114 download)

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Book Synopsis Monolithic Phase-Locked Loops and Clock Recovery Circuits by : Behzad Razavi

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.

Clock Generators for SOC Processors

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1402080808
Total Pages : 257 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Clock Generators for SOC Processors by : Amr Fahim

Download or read book Clock Generators for SOC Processors written by Amr Fahim and published by Springer Science & Business Media. This book was released on 2005-12-06 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the issue of design of fully integrated frequency synthesizers suitable for system-on-a-chip (SOC) processors. This book takes a more global design perspective in jointly examining the design space at the circuit level as well as at the architectural level. The coverage of the book is comprehensive and includes summary chapters on circuit theory as well as feedback control theory relevant to the operation of phase locked loops (PLLs). On the circuit level, the discussion includes low-voltage analog design in deep submicron digital CMOS processes, effects of supply noise, substrate noise, as well device noise. On the architectural level, the discussion includes PLL analysis using continuous-time as well as discre- time models, linear and nonlinear effects of PLL performance, and detailed analysis of locking behavior. The material then develops into detailed circuit and architectural analysis of specific clock generation blocks. This includes circuits and architectures of PLLs with high power supply noise immunity and digital PLL architectures where the loop filter is digitized. Methods of generating low-spurious sampling clocks for discrete-time analog blocks are then examined. This includes sigma-delta fractional-N PLLs, Direct Digital Synthesis (DDS) techniques and non-conventional uses of PLLs. Design for test (DFT) issues as they arise in PLLs are then discussed. This includes methods of accurately measuring jitter and built-in-self-test (BIST) techniques for PLLs.

Phase-Locked Loops

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Author :
Publisher : McGraw Hill Professional
ISBN 13 : 0071501231
Total Pages : 434 pages
Book Rating : 4.0/5 (715 download)

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Book Synopsis Phase-Locked Loops by : Roland Best

Download or read book Phase-Locked Loops written by Roland Best and published by McGraw Hill Professional. This book was released on 2003-07-11 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase Locked Loops (PLLs) are electronic circuits used for frequency control. Anything using radio waves, from simple radios and cell phones to sophisticated military communications gear uses PLLs.The communications industry’s big move into wireless in the past two years has made this mature topic red hot again. The fifth edition of this classic circuit reference comes complete with extremely valuable PLL design software written by Dr. Best. The software alone is worth many times the price of the book. The new edition also includes new chapters on frequency synthesis, CAD for PLLs, mixed-signal PLLs, and a completely new collection of sample communications applications.

Digital Phase-locked Loops for Multi-GHz Clock Generation

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Author :
Publisher :
ISBN 13 : 9781109862881
Total Pages : 90 pages
Book Rating : 4.8/5 (628 download)

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Book Synopsis Digital Phase-locked Loops for Multi-GHz Clock Generation by : Volodymyr Kratyuk

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.

From Frequency to Time-Average-Frequency

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119102286
Total Pages : 180 pages
Book Rating : 4.1/5 (191 download)

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Book Synopsis From Frequency to Time-Average-Frequency by : Liming Xiu

Download or read book From Frequency to Time-Average-Frequency written by Liming Xiu and published by John Wiley & Sons. This book was released on 2015-04-22 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written in a simple, easy to understand style, this book will teach PLL users how to use new clock technology in their work in order to create innovative applications. Investigates the clock frequency concept from a different perspective--at an application level Teaches engineers to use this new clocking technology to create innovations in chip/system level, through real examples extracted from commercial products

Nanometer Frequency Synthesis Beyond the Phase-Locked Loop

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 1118347943
Total Pages : 339 pages
Book Rating : 4.1/5 (183 download)

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Book Synopsis Nanometer Frequency Synthesis Beyond the Phase-Locked Loop by : Liming Xiu

Download or read book Nanometer Frequency Synthesis Beyond the Phase-Locked Loop written by Liming Xiu and published by John Wiley & Sons. This book was released on 2012-06-22 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introducing a new, pioneering approach to integrated circuit design Nanometer Frequency Synthesis Beyond Phase-Locked Loop introduces an innovative new way of looking at frequency that promises to open new frontiers in modern integrated circuit (IC) design. While most books on frequency synthesis deal with the phase-locked loop (PLL), this book focuses on the clock signal. It revisits the concept of frequency, solves longstanding problems in on-chip clock generation, and presents a new time-based information processing approach for future chip design. Beginning with the basics, the book explains how clock signal is used in electronic applications and outlines the shortcomings of conventional frequency synthesis techniques for dealing with clock generation problems. It introduces the breakthrough concept of Time-Average-Frequency, presents the Flying-Adder circuit architecture for the implementation of this approach, and reveals a new circuit device, the Digital-to-Frequency Converter (DFC). Lastly, it builds upon these three key components to explain the use of time rather than level to represent information in signal processing. Provocative, inspiring, and chock-full of ideas for future innovations, the book features: A new way of thinking about the fundamental concept of clock frequency A new circuit architecture for frequency synthesis: the Flying-Adder direct period synthesis A new electronic component: the Digital-to-Frequency Converter A new information processing approach: time-based vs. level-based Examples demonstrating the power of this technology to build better, cheaper, and faster systems Written with the intent of showing readers how to think outside the box, Nanometer Frequency Synthesis Beyond the Phase-Locked Loop is a must-have resource for IC design engineers and researchers as well as anyone who would like to be at the forefront of modern circuit design.

Frequency Acquisition Techniques for Phase Locked Loops

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 1118383303
Total Pages : 236 pages
Book Rating : 4.1/5 (183 download)

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Book Synopsis Frequency Acquisition Techniques for Phase Locked Loops by : Daniel B. Talbot

Download or read book Frequency Acquisition Techniques for Phase Locked Loops written by Daniel B. Talbot and published by John Wiley & Sons. This book was released on 2012-08-24 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: How to acquire the input frequency from an unlocked state A phase locked loop (PLL) by itself cannot become useful until it has acquired the applied signal's frequency. Often, a PLL will never reach frequency acquisition (capture) without explicit assistive circuits. Curiously, few books on PLLs treat the topic of frequency acquisition in any depth or detail. Frequency Acquisition Techniques for Phase Locked Loops offers a no-nonsense treatment that is equally useful for engineers, technicians, and managers. Since mathematical rigor for its own sake can degenerate into intellectual "rigor mortis," the author introduces readers to the basics and delivers useful information with clear language and minimal mathematics. With most of the approaches having been developed through years of experience, this completely practical guide explores methods for achieving the locked state in a variety of conditions as it examines: Performance limitations of phase/frequency detector–based phase locked loops The quadricorrelator method for both continuous and sampled modes Sawtooth ramp-and-sample phase detector and how its waveform contains frequency error information that can be extracted The benefits of a self-sweeping, self-extinguishing topology Sweep methods using quadrature mixer-based lock detection The use of digital implementations versus analog Frequency Acquisition Techniques for Phase Locked Loops is an important resource for RF/microwave engineers, in particular, circuit designers; practicing electronics engineers involved in frequency synthesis, phase locked loops, carrier or clock recovery loops, radio-frequency integrated circuit design, and aerospace electronics; and managers wanting to understand the technology of phase locked loops and frequency acquisition assistance techniques or jitter attenuating loops. Errata can be found by visiting the Book Support Site at: http://booksupport.wiley.com

Low-Noise Low-Power Design for Phase-Locked Loops

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Author :
Publisher : Springer
ISBN 13 : 3319122002
Total Pages : 106 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Low-Noise Low-Power Design for Phase-Locked Loops by : Feng Zhao

Download or read book Low-Noise Low-Power Design for Phase-Locked Loops written by Feng Zhao and published by Springer. This book was released on 2014-11-25 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces low-noise and low-power design techniques for phase-locked loops and their building blocks. It summarizes the noise reduction techniques for fractional-N PLL design and introduces a novel capacitive-quadrature coupling technique for multi-phase signal generation. The capacitive-coupling technique has been validated through silicon implementation and can provide low phase-noise and accurate I-Q phase matching, with low power consumption from a super low supply voltage. Readers will be enabled to pick one of the most suitable QVCO circuit structures for their own designs, without additional effort to look for the optimal circuit structure and device parameters.

Phase Locked Loop Design as a Frequency Multiplier

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Publisher :
ISBN 13 : 9783659249532
Total Pages : 0 pages
Book Rating : 4.2/5 (495 download)

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Book Synopsis Phase Locked Loop Design as a Frequency Multiplier by : George Tom Varghese

Download or read book Phase Locked Loop Design as a Frequency Multiplier written by George Tom Varghese and published by . This book was released on 2012-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-performance digital systems use clocks to sequence operations and synchronize between functional units and between ICs. Clock frequencies and data rates have been increasing with each generation of processing technology and processor architecture. Phase locked-loops (PLLs) are widely used to generate well-timed on-chip clocks in high-performance digital systems. A PLL is a closed loop frequency system that locks the phase of an output signal to an input reference signal. PLL's are widely used in computer, radio, and telecommunications systems where it is necessary to stabilize a generated signal or to detect signals. The term "lock" refers to a constant or zero phase difference between two signals. The signal from the feedback path is compared to the input reference signal, until the two signals are locked. If the phase is unmatched, this is called the unlocked state, and the signal is sent to each component in the loop to correct the phase difference. These components consist of the Phase Frequency Detector (PFD), the charge pump (CP), the low pass filter (LPF), the voltage controlled oscillator (VCO) and divide by counter. The PFD detects any phase differences in and and then generates an error signal. According to that error signal the CP either increases or decreases the amount of charge to the LPF. This amount of charge either speeds up or slows down the VCO. The loop continues in this process until the phase difference between and is zero or constant--this is the locked mode. After the loop has attained a locked status, the loop still continues in the process but the output of each component is constant. The output signal has the same phase and/or frequency as .A divider can be used in the feedback path to synthesize a frequency different than that of the reference signal. The application I chose in designing the PLL was a frequency synthesizer. A frequency synthesizer generates a frequency that can have a different frequency from the original reference si.

Phase-Locked Loops

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 111990904X
Total Pages : 389 pages
Book Rating : 4.1/5 (199 download)

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Book Synopsis Phase-Locked Loops by : Woogeun Rhee

Download or read book Phase-Locked Loops written by Woogeun Rhee and published by John Wiley & Sons. This book was released on 2024-01-11 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Design of CMOS Phase-Locked Loops

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Author :
Publisher : Cambridge University Press
ISBN 13 : 1108494544
Total Pages : 509 pages
Book Rating : 4.1/5 (84 download)

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Book Synopsis Design of CMOS Phase-Locked Loops by : Behzad Razavi

Download or read book Design of CMOS Phase-Locked Loops written by Behzad Razavi and published by Cambridge University Press. This book was released on 2020-01-30 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: This modern, pedagogic textbook from leading author Behzad Razavi provides a comprehensive and rigorous introduction to CMOS PLL design, featuring intuitive presentation of theoretical concepts, extensive circuit simulations, over 200 worked examples, and 250 end-of-chapter problems. The perfect text for senior undergraduate and graduate students.

Phase Locked Loops 6/e

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Author :
Publisher : McGraw Hill Professional
ISBN 13 : 007159521X
Total Pages : 506 pages
Book Rating : 4.0/5 (715 download)

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Book Synopsis Phase Locked Loops 6/e by : Roland E. Best

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

A Multi-loop Calibration-free Phase-locked Loop (PLL) for Wideband Clock Generation

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Author :
Publisher :
ISBN 13 :
Total Pages : 123 pages
Book Rating : 4.:/5 (19 download)

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Book Synopsis A Multi-loop Calibration-free Phase-locked Loop (PLL) for Wideband Clock Generation by : Dihang Yang

Download or read book A Multi-loop Calibration-free Phase-locked Loop (PLL) for Wideband Clock Generation written by Dihang Yang and published by . This book was released on 2019 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a wide-band RF system, the RF channel is located within 50 MHz to 9 GHz. A high-frequency resolution phase-locked loop (PLL) with 100$\%$ tuning range oscillator is the core to generate the RF carrier frequency which covers such a wide range. The phase noise and spurs of the PLL are required to be low to avoid degrading RF system performance. A PLL applies $\Sigma \Delta$ modulation to increases its resolution and is known as a fractional-N PLL, but $\Sigma \Delta$ modulation introduces considerable quantization noise into the loop. The nonlinearity of the PLL also converts part of the noise into fractional-N spurs. Noise cancellation is usually applied to eliminate this quantization noise. Calibration, often with long settling time, is necessary to maintain cancellation efficiency. Power intensive calibration is also required to notch spurious tones. In this thesis, we first investigate the delay-locked loop (DLL) and attempt to use DLL to replace PLL as an RF frequency synthesizer. An LTI model of DLL is established, which indicates the limitation of DLL as a high-performance synthesizer. Then, the thesis focuses on PLL again. A calibration-free triple-loop PLL is introduced. The merits of heterodyne PLL are rediscovered, which applies a mixer in the loop to translate the VCO frequency to a low-frequency feedback signal. By implementing the harmonic mixing concept, the designed prototype effectively reduces the pulling risk of a traditional heterodyne PLL, allowing it to be integrated on a single chip. This PLL provides higher-order noise filtering and can naturally reduce fractional-N PLL noise and spurs. An analytical model for this PLL is also presented, which allows us to fully appreciate this PLL and optimize the loop design. After this, a sub-sampling PLL-based low-noise frequency extender is introduced, which increases the tuning range of an oscillator from 30$\%$ to 100$\%$, and requires only a small chip area. By combining the triple-loop PLL and the frequency extender, a synthesizer which can support a wideband radio system is achieved.

A Digital Multiplying Delay Locked Loop for High Frequency Clock Generation

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Author :
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (761 download)

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Book Synopsis A Digital Multiplying Delay Locked Loop for High Frequency Clock Generation by : Tushar Uttarwar

Download or read book A Digital Multiplying Delay Locked Loop for High Frequency Clock Generation written by Tushar Uttarwar and published by . This book was released on 2011 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: As Moore's Law continues to give rise to ever shrinking channel lengths, circuits are becoming more digital and ever increasingly faster. Generating high frequency clocks in such scaled processes is becoming a tough challenge. Digital phase locked loops (DPLLs) are being explored as an alternative to conventional analog PLLs but suffer from issues such as low bandwidth and higher quantization noise. A digital multiplying delay locked loop (DMDLL) is proposed which aims at leveraging the benefit of high bandwidth of DLL while at the same time achieving the frequency multiplication property of PLL. It also offers the benefits of easier portability across process and occupies lesser area. The proposed DMDLL uses a simple flip-flop as 1-bit TDC (Time Digital Converter) for Phase Detector (PD). A digital accumulator acts as integrator for loop filter while a [delta-sigma] DAC in combination with a VCO acts like a DCO. A carefully designed select logic in conjunction with a MUX achieves frequency multiplication. The proposed digital MDLL is taped out in 130nm process and tested to obtain 1.4GHz output frequency with 1.6ps RMS jitter, 17ps peak-to-peak jitter and -50dbC/Hz reference spurs.