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A High Speed Integrated Voltage Controlled Oscillator In Commercial Cmos Technology
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Book Synopsis A High Speed Integrated Voltage Controlled Oscillator in Commercial CMOS Technology by : Sameer Vasantlal Vora
Download or read book A High Speed Integrated Voltage Controlled Oscillator in Commercial CMOS Technology written by Sameer Vasantlal Vora and published by . This book was released on 1998 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design of High-Performance CMOS Voltage-Controlled Oscillators by : Liang Dai
Download or read book Design of High-Performance CMOS Voltage-Controlled Oscillators written by Liang Dai and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design of High-Performance CMOS Voltage-Controlled Oscillators presents a phase noise modeling framework for CMOS ring oscillators. The analysis considers both linear and nonlinear operation. It indicates that fast rail-to-rail switching has to be achieved to minimize phase noise. Additionally, in conventional design the flicker noise in the bias circuit can potentially dominate the phase noise at low offset frequencies. Therefore, for narrow bandwidth PLLs, noise up conversion for the bias circuits should be minimized. We define the effective Q factor (Qeff) for ring oscillators and predict its increase for CMOS processes with smaller feature sizes. Our phase noise analysis is validated via simulation and measurement results. The digital switching noise coupled through the power supply and substrate is usually the dominant source of clock jitter. Improving the supply and substrate noise immunity of a PLL is a challenging job in hostile environments such as a microprocessor chip where millions of digital gates are present.
Book Synopsis A New Architecture for Low-voltage Low-phase-noise High-frequency CMOS LC Voltage-controlled Oscillator by : Anthony Dac Lieu
Download or read book A New Architecture for Low-voltage Low-phase-noise High-frequency CMOS LC Voltage-controlled Oscillator written by Anthony Dac Lieu and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented in this work is a novel design technique for a low-phase-noise high-frequency CMOS voltage-controlled oscillator. Phase noise is generated from electrical noise near DC, the oscillation frequency, and its harmonics. In CMOS technology, low-frequency flicker noise dominates the close-in phase noise of the VCO. The proposed technique minimizes the VCO phase noise by seeking to eliminate the effect of flicker noise on the phase n6se. This is accomplished by canceling out the DC component of the impulse sensitivity function (ISF) corresponding to each flicker-noise source, thus preventing the up-conversion of low-frequency noise into phase noise. The proposed circuit topology is a modified version of the complementary cross-coupled transconductance VCO, where additional feedback paths are introduced such that a designer can choose the feedback ratios, transistor sizes, and bias voltages to achieve the previously mentioned design objectives. A step-by-step design algorithm is presented along with a MATLAB script to aid in the computation of the ISFs and the phase noise of the VCO. Using this algorithm, a 5-GHz VCO was designed and fabricated in a 0.18m︡ CMOS process, and then tested for comparison with simulated results.
Book Synopsis High Frequency CMOS Voltage-controlled Oscillator by : Randy Ping Leong Tsang
Download or read book High Frequency CMOS Voltage-controlled Oscillator written by Randy Ping Leong Tsang and published by . This book was released on 1984 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CMOS PLL Synthesizers: Analysis and Design by : Keliu Shu
Download or read book CMOS PLL Synthesizers: Analysis and Design written by Keliu Shu and published by Springer Science & Business Media. This book was released on 2006-01-20 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thanks to the advance of semiconductor and communication technology, the wireless communication market has been booming in the last two decades. It evolved from simple pagers to emerging third-generation (3G) cellular phones. In the meanwhile, broadband communication market has also gained a rapid growth. As the market always demands hi- performance and low-cost products, circuit designers are seeking hi- integration communication devices in cheap CMOS technology. The phase-locked loop frequency synthesizer is a critical component in communication devices. It works as a local oscillator for frequency translation and channel selection in wireless transceivers and broadband cable tuners. It also plays an important role as the clock synthesizer for data converters in the analog-and-digital signal interface. This book covers the design and analysis of PLL synthesizers. It includes both fundamentals and a review of the state-of-the-art techniques. The transient analysis of the third-order charge-pump PLL reveals its locking behavior accurately. The behavioral-level simulation of PLL further clarifies its stability limit. Design examples are given to clearly illustrate the design procedure of PLL synthesizers. A complete derivation of reference spurs in the charge-pump PLL is also presented in this book. The in-depth investigation of the digital CA modulator for fractional-N synthesizers provides insightful design guidelines for this important block.
Book Synopsis Transformer-Based Design Techniques for Oscillators and Frequency Dividers by : Howard Cam Luong
Download or read book Transformer-Based Design Techniques for Oscillators and Frequency Dividers written by Howard Cam Luong and published by Springer. This book was released on 2015-10-07 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides in-depth coverage of transformer-based design techniques that enable CMOS oscillators and frequency dividers to achieve state-of-the-art performance. Design, optimization, and measured performance of oscillators and frequency dividers for different applications are discussed in detail, focusing on not only ultra-low supply voltage but also ultra-wide frequency tuning range and locking range. This book will be an invaluable reference for anyone working or interested in CMOS radio-frequency or mm-Wave integrated circuits and systems.
Book Synopsis Time-encoding VCO-ADCs for Integrated Systems-on-Chip by : Georges Gielen
Download or read book Time-encoding VCO-ADCs for Integrated Systems-on-Chip written by Georges Gielen and published by Springer Nature. This book was released on 2022-03-01 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book demonstrates why highly-digital CMOS time-encoding analog-to-digital converters incorporating voltage-controlled oscillators (VCOs) and time-to-digital converters (TDCs) are a good alternative to traditional switched-capacitor S-D modulators for power-efficient sensor, biomedical and communications applications. The authors describe the theoretical foundations and design methodology of such time-based ADCs from the basics to the latest developments. While most analog designers might notice some resemblance to PLL design, the book clearly highlights the differences to standard PLL circuit design and illustrates the design methodology with practical circuit design examples. Describes in detail the design methodology for CMOS time-encoding analog-to-digital converters that can be integrated along with digital logic in a nanometer System on Chip; Assists analog designers with the necessary change in design paradigm, highlighting differences between designing time-based ADCs and traditional analog circuits like switched-capacitor converters and PLLs; Uses a highly-visual, tutorial approach to the topic, including many practical examples of techniques introduced.
Book Synopsis Design Of High-speed Communication Circuits by : Ramesh Harjani
Download or read book Design Of High-speed Communication Circuits written by Ramesh Harjani and published by World Scientific. This book was released on 2006-01-17 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: MOS technology has rapidly become the de facto standard for mixed-signal integrated circuit design due to the high levels of integration possible as device geometries shrink to nanometer scales. The reduction in feature size means that the number of transistor and clock speeds have increased significantly. In fact, current day microprocessors contain hundreds of millions of transistors operating at multiple gigahertz. Furthermore, this reduction in feature size also has a significant impact on mixed-signal circuits. Due to the higher levels of integration, the majority of ASICs possesses some analog components. It has now become nearly mandatory to integrate both analog and digital circuits on the same substrate due to cost and power constraints. This book presents some of the newer problems and opportunities offered by the small device geometries and the high levels of integration that is now possible.The aim of this book is to summarize some of the most critical aspects of high-speed analog/RF communications circuits. Attention is focused on the impact of scaling, substrate noise, data converters, RF and wireless communication circuits and wireline communication circuits, including high-speed I/O.
Book Synopsis A 1.8 GHz LC-Voltage Controlled Oscillator Using On-chip Inductors and Body Driven Varactors in CMOS 0.35 [mu]m Process by :
Download or read book A 1.8 GHz LC-Voltage Controlled Oscillator Using On-chip Inductors and Body Driven Varactors in CMOS 0.35 [mu]m Process written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In an era dominated by the highly demanding wireless communication system, there is a great need for developing small, cheap, and low power RF sub-systems. This demand has lead to significant research on completely integrated transceiver systems. One of the great challenges in an integrated transceiver system is the frequency synthesizer. Frequency synthesizers are usually implemented using a phase locked loop (PLL) and low frequency highly stable crystal oscillator. The spectral purity of a synthesized carrier signal depends on the kind of Voltage Controlled Oscillator (VCO) used. Hence successful implementation of a low phase noise, completely integrated VCO in standard CMOS process is a major step towards implementing a completely integrated transceiver. The best VCO architecture in terms of noise performance is LC-VCO. The aim of the current research is to design a completely integrated 1.8 GHz LC-VCO for a GSM or DCS-1800 receiver in standard CMOS 0.35 [mu]m technology. The major challenge in a completely integrated LC-VCO is to develop an fully integrated inductor. In this research various means of implementing an integrated inductor have been scrutinized and the best feasible among them the on-chip spiral inductor has been analyzed elaborately. The complete design cycle from describing the specification of an inductor to the final layout in Cadence has been described. Also a new symmetrical, highly balanced on-chip inductor has been used in the current design. Another important and the most critical challenge is to implement a very high tuning range, high Q-factor on-chip varactor in standard CMOS process. In this research a new body driven varactor, which is forced to operate in accumulation mode has been developed and analyzed elaborately. The tuning range specification for the design was chosen to be 200 MHz accounting for component tolerance. Various means of measuring phase noise has been elaborately analyzed. Also detailed study on improving the noise performance of the LC-VCO has been studied.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microelectronics, Electromagnetics and Telecommunications by : Ganapati Panda
Download or read book Microelectronics, Electromagnetics and Telecommunications written by Ganapati Panda and published by Springer. This book was released on 2018-11-02 with total page 823 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book discusses the latest developments and outlines future trends in the fields of microelectronics, electromagnetics and telecommunication. It contains original research works presented at the International Conference on Microelectronics, Electromagnetics and Telecommunication (ICMEET 2018), organised by GVP College of Engineering (A), Andhra Pradesh, India. The respective papers were written by scientists, research scholars and practitioners from leading universities, engineering colleges and R&D institutes from all over the world, and share the latest breakthroughs in and promising solutions to the most important issues facing today’s society.
Book Synopsis A Dual-Mode Wide-Band Cmos Oscillator by : Shatam Agarwal
Download or read book A Dual-Mode Wide-Band Cmos Oscillator written by Shatam Agarwal and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Broadband voltage-controlled oscillators are critical to the design of millimeter-wave (mm-wave) frequency synthesizers. This thesis proposes a design technique that can be used to significantly extend the achievable frequency span of an oscillator. A dual-band oscillator topology is described that can be configured to operate in one of two modes, by an electrical reconfiguration of the negative resistance core around the resonant tank, without switching passive elements within the tank itself. The configuration helps to minimize the difference in phase noise performance between the two modes, while achieving a wide tuning range. To verify the concept, an mm-wave VCO that operates at 30 GHz is designed in a commercial 0.18-um CMOS technology, with an approximate simulated tuning range of 20%. A dual-mode oscillator is also designed in 0.13-um CMOS technology at 60 GHz.
Book Synopsis Wireless CMOS Frequency Synthesizer Design by : J. Craninckx
Download or read book Wireless CMOS Frequency Synthesizer Design written by J. Craninckx and published by Springer Science & Business Media. This book was released on 1998-04-30 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent boom in the mobile telecommunication market has trapped the interest of almost all electronic and communication companies worldwide. New applications arise every day, more and more countries are covered by digital cellular systems and the competition between the several providers has caused prices to drop rapidly. The creation of this essentially new market would not have been possible without the ap pearance of smalI, low-power, high-performant and certainly low-cost mobile termi nals. The evolution in microelectronics has played a dominant role in this by creating digital signal processing (DSP) chips with more and more computing power and com bining the discrete components of the RF front-end on a few ICs. This work is situated in this last area, i. e. the study of the full integration of the RF transceiver on a single die. Furthermore, in order to be compatible with the digital processing technology, a standard CMOS process without tuning, trimming or post-processing steps must be used. This should flatten the road towards the ultimate goal: the single chip mobile phone. The local oscillator (LO) frequency synthesizer poses some major problems for integration and is the subject of this work. The first, and also the largest, part of this text discusses the design of the Voltage Controlled Oscillator (VCO). The general phase noise theory of LC-oscillators is pre sented, and the concept of effective resistance and capacitance is introduced to char acterize and compare the performance of different LC-tanks.
Book Synopsis A High Speed Tunable 1.2 [micron] CMOS by : Anish M. Shah
Download or read book A High Speed Tunable 1.2 [micron] CMOS written by Anish M. Shah and published by . This book was released on 1994 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Data Rate Transmitter Circuits by : C.J. de Ranter
Download or read book High Data Rate Transmitter Circuits written by C.J. de Ranter and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide and introduction to the design of key RF building blocks used in high data rate transmitters emphasizes CMOS circuit techniques applicable to oscillators and upconvertors. The book is written in an easily accessible manner, without losing detail on the technical side.
Book Synopsis Low-voltage high-frequency CMOS transformer-feedback voltage-controlled oscillators by :
Download or read book Low-voltage high-frequency CMOS transformer-feedback voltage-controlled oscillators written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Xv, 115 leaves : ill. ; 30 cm.
Book Synopsis CMOS Continuous-Time Adaptive Equalizers for High-Speed Serial Links by : Cecilia Gimeno Gasca
Download or read book CMOS Continuous-Time Adaptive Equalizers for High-Speed Serial Links written by Cecilia Gimeno Gasca and published by Springer. This book was released on 2014-09-22 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to the design of adaptive equalization solutions integrated in standard CMOS technology for high-speed serial links. Since continuous-time equalizers offer various advantages as an alternative to discrete-time equalizers at multi-gigabit rates, this book provides a detailed description of continuous-time adaptive equalizers design - both at transistor and system levels-, their main characteristics and performances. The authors begin with a complete review and analysis of the state of the art of equalizers for wireline applications, describing why they are necessary, their types, and their main applications. Next, theoretical fundamentals of continuous-time adaptive equalizers are explored. Then, new structures are proposed to implement the different building blocks of the adaptive equalizer: line equalizer, loop-filters, power comparator, etc. The authors demonstrate the design of a complete low-power, low-voltage, high-speed, continuous-time adaptive equalizer. Finally, a cost-effective CMOS receiver which includes the proposed continuous-time adaptive equalizer is designed for 1.25 Gb/s optical communications through 50-m length, 1-mm diameter plastic optical fiber (POF).
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