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Author: Han-xiong Lian
Publisher: iUniverse
ISBN: 1491748656
Category : Technology & Engineering
Languages : en
Pages : 418
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Book Description
Nowaday, the supper low noise PLL oscillator and the supper low jitter synthesizer have been used in the worldwide communications system. Where, the former is used for the satellite communications and the latter is used for the cellular phone. The main idea to obtain a supper low noise PLL oscillator is to use a high Q resonator, such as the dielectric resonator, with a suitable phase-locked loop. To design a supper low jitter synthesizer, the best way is to set up a solid background about the synthesizer, which includes: The analogy PLL oscillator (linear analysis and nonlinear analysis), The digital PLL oscillator, using the symbol analysis and the analog PLL analysis, The synthesizer, using the symbol analysis and the sample PLL analysis. Mean while, the digital-hybrid PLL can be used for the 10 Gbit/s data recovery in the 10 Gbit/s optical fiber transponder. This book will provide you all of those information. Meanwhile, provider you the design formulas, design examples and the final schematics. The author have been involved in the design and development of all of those projects above for almost 30 years. Therefore, this book is very clear not only in theoretical analysis but also in experimental.
Author: Han-xiong Lian
Publisher: iUniverse
ISBN: 1491748656
Category : Technology & Engineering
Languages : en
Pages : 418
Get Book Here
Book Description
Nowaday, the supper low noise PLL oscillator and the supper low jitter synthesizer have been used in the worldwide communications system. Where, the former is used for the satellite communications and the latter is used for the cellular phone. The main idea to obtain a supper low noise PLL oscillator is to use a high Q resonator, such as the dielectric resonator, with a suitable phase-locked loop. To design a supper low jitter synthesizer, the best way is to set up a solid background about the synthesizer, which includes: The analogy PLL oscillator (linear analysis and nonlinear analysis), The digital PLL oscillator, using the symbol analysis and the analog PLL analysis, The synthesizer, using the symbol analysis and the sample PLL analysis. Mean while, the digital-hybrid PLL can be used for the 10 Gbit/s data recovery in the 10 Gbit/s optical fiber transponder. This book will provide you all of those information. Meanwhile, provider you the design formulas, design examples and the final schematics. The author have been involved in the design and development of all of those projects above for almost 30 years. Therefore, this book is very clear not only in theoretical analysis but also in experimental.
Author: Ulrich L. Rohde
Publisher: John Wiley & Sons
ISBN: 9780471520191
Category : Technology & Engineering
Languages : en
Pages : 664
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Book Description
Over the past decade, great strides have been made in the technology of microwave oscillators and synthesizers, with digital frequency synthesizers in particular attracting much attention. These synthesizers are now being used in virtually all modern signal generators and radio communication equipment. Until now, however, detailed information about their design has been hard to come by-much of it scattered through journal articles-and most books on the subject have taken a primarily theoretical approach. Enter Microwave and Wireless Synthesizers-the first book to emphasize both practical circuit information from RF to millimeter-wave frequencies and up-to-date theory. Based on course material taught by author Ulrich L. Rohde at George Washington University and recent work done by the author at Compact Software, Inc. and Synergy Microwave Corporation, this volume is a complete revision and update of Rohde's landmark text, Digital PLL Frequency Synthesizers: Theory and Design. While it provides all the necessary theory and formulas, it also offers an in-depth look at the practical side of the phase-lock loop (PLL) in synthesizers-including special loops, loop components, and practical circuits-material that is not available in any other book. Rohde explains loop fundamentals, demonstrates the linear approach to oscillator phase noise, discusses the digital direct synthesizer technique, addresses low noise oscillator design, and provides insight into the role and design of crystal oscillators, mixers, phase/frequency discriminators, wideband high-gain amplifiers, programmable dividers, and loop filters. He goes on to cover conventional multiloop synthesizers and survey existing state-of-the-art microwave synthesizer applications. Extensive appendices review the mathematics of useful functions and various applications, including even the complex nonlinear theory of noise in large signal systems such as mixers and oscillators. Microwave and Wireless Synthesizers allows anyone with a PC running either Windows 3.11 or Windows NT to explore real-world design. It uses programs for the solution of digital phase-lock loop systems, tabulates the results, and shows how Bode diagrams are determined by the computer's graphic capabilities. It also includes examples using commercially available linear and nonlinear CAD programs to provide accurate evaluation and optimization of oscillators and other useful circuits and many practical charts. For companies involved in test and communication equipment, this book reduces design and research costs by providing a large number of proven circuits and expediting the design process. It is also an outstanding senior/graduate level textbook for electrical engineering students and an invaluable resource for practicing engineers, senior engineers, and managers who would like to be able to evaluate new trends and techniques in the field.
Author: Chih-Wei Yao
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
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Book Description
This dissertation contains three parts. In the first part, the analysis and circuits of a jittercleaning fractional-N frequency synthesizer is presented. In the second part, a low phase noise and low I/Q mismatch quadrature VCO is presented. In the third part, a low phase noise digital PLL is presented. For the first part, the design utilizes a dual-loop architecture, which is suitable for integration in an SoC environment. The primary loop is a digital PLL with a second-order noise shaping phase-error ADC. The secondary loop is a fractional-N PLL implementing the digitally controlled oscillator inside the primary loop, and it locks to an external clean reference clock to reduce the phase noise and to improve the frequency stability of the on-chip oscillator. For the second part, a tail-tank coupling technique that combines two complementary differential LC-VCOs to form a quadrature LC-VCO is presented. This technique reduces phase noise by providing additional energy storages for noise redistribution and by canceling out most of the noise injected by transistors when they operate in the triode region. The resulting noise factor is close to the theoretical minimum value. For the third part, a 2.8 to 3.2 GHz fractional-N digital PLL is presented. A divider with two-stage retiming improves linearity to reduce fractional spurs without increasing the in-band noise floor. An ADC is employed to boost TDC resolution by five times to achieve 2 ps effective resolution. A dither-less DCO with an inductively coupled fine-tune varactor bank improves tuning step-size to 20 kHz. With a 52 MHz reference clock and a loop-bandwidth of 950 kHz, this prototype achieves 230 fs rms jitter integrated from 1 kHz to 40 MHz offset while drawing 17 mW from a 1.8V supply. A FOM of -240.4 dB is achieved.
Author: Ali Hajimiri
Publisher: Springer Science & Business Media
ISBN: 0306481995
Category : Technology & Engineering
Languages : en
Pages : 214
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Book Description
It is hardly a revelation to note that wireless and mobile communications have grown tremendously during the last few years. This growth has placed stringent requi- ments on channel spacing and, by implication, on the phase noise of oscillators. C- pounding the challenge has been a recent drive toward implementations of transceivers in CMOS, whose inferior 1/f noise performance has usually been thought to disqualify it from use in all but the lowest-performance oscillators. Low noise oscillators are also highly desired in the digital world, of course. The c- tinued drive toward higher clock frequencies translates into a demand for ev- decreasing jitter. Clearly, there is a need for a deep understanding of the fundamental mechanisms g- erning the process by which device, substrate, and supply noise turn into jitter and phase noise. Existing models generally offer only qualitative insights, however, and it has not always been clear why they are not quantitatively correct.
Author: Feng Zhao
Publisher: Springer
ISBN: 3319122002
Category : Technology & Engineering
Languages : en
Pages : 106
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Book Description
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.
Author: Andrea Leonardo Lacaita
Publisher: Cambridge University Press
ISBN: 1139466097
Category : Technology & Engineering
Languages : en
Pages : 9
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Book Description
The increasingly demanding performance requirements of communications systems, as well as problems posed by the continued scaling of silicon technology, present numerous challenges for the design of frequency synthesizers in modern transceivers. This book contains everything you need to know for the efficient design of frequency synthesizers for today's communications applications. If you need to optimize performance and minimize design time, you will find this book invaluable. Using an intuitive yet rigorous approach, the authors describe simple analytical methods for the design of phase locked loop (PLL) frequency synthesizers using scaled silicon CMOS and bipolar technologies. The entire design process, from system-level specification to layout, is covered comprehensively. Practical design examples are included, and implementation issues are addressed. A key problem-solving resource for practitioners in IC design, the book will also be of interest to researchers and graduate students in electrical engineering.
Author: Krzysztof Iniewski
Publisher: CRC Press
ISBN: 0849379970
Category : Technology & Engineering
Languages : en
Pages : 696
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Book Description
Advanced concepts for wireless technologies present a vision of technology that is embedded in our surroundings and practically invisible. From established radio techniques like GSM, 802.11 or Bluetooth to more emerging technologies, such as Ultra Wide Band and smart dust motes, a common denominator for future progress is the underlying integrated circuit technology. Wireless Technologies responds to the explosive growth of standard cellular radios and radically different wireless applications by presenting new architectural and circuit solutions engineers can use to solve modern design problems. This reference addresses state-of-the art CMOS design in the context of emerging wireless applications, including 3G/4G cellular telephony, wireless sensor networks, and wireless medical application. Written by top international experts specializing in both the IC industry and academia, this carefully edited work uncovers new design opportunities in body area networks, medical implants, satellite communications, automobile radar detection, and wearable electronics. The book is divided into three sections: wireless system perspectives, chip architecture and implementation issues, and devices and technologies used to fabricate wireless integrated circuits. Contributors address key issues in the development of future silicon-based systems, such as scale of integration, ultra-low power dissipation, and the integration of heterogeneous circuit design style and processes onto one substrate. Wireless sensor network systems are now being applied in critical applications in commerce, healthcare, and security. This reference, which contains 25 practical and scientifically rigorous articles, provides the knowledge communications engineers need to design innovative methodologies at the circuit and system level.
Author: Ulrich L. Rohde
Publisher: Prentice Hall
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 518
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Book Description
Author: Institute of Electrical and Electronics Engineers
Publisher:
ISBN:
Category : Electric engineering
Languages : en
Pages : 1234
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Book Description
Issues for 1973- cover the entire IEEE technical literature.
Author: Xinhua He
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
