Download or read book The Designer s Guide to Jitter in Ring Oscillators written by John A. McNeill and published by Springer Science & Business Media. This book was released on 2009-04-09 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide emphasizes jitter for time domain applications so that there is not a need to translate from frequency domain. This provides a more direct path to the results for designing in an application area where performance is specified in the time domain. The book includes classification of oscillator types and an exhaustive guide to existing research literature. It also includes classification of measurement techniques to help designers understand how the eventual performance of circuit design is verified.
Download or read book Jitter in Ring Oscillators written by John Arthur McNeill and published by . This book was released on 1994 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Designer s Guide to Jitter in Ring Oscillators written by John A. McNeill and published by Springer. This book was released on 2008-11-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide emphasizes jitter for time domain applications so that there is not a need to translate from frequency domain. This provides a more direct path to the results for designing in an application area where performance is specified in the time domain. The book includes classification of oscillator types and an exhaustive guide to existing research literature. It also includes classification of measurement techniques to help designers understand how the eventual performance of circuit design is verified.
Download or read book Low Jitter Ring Oscillator Using a Modified Inverter Delay Cell written by Sammi Beidalah and published by . This book was released on 2014 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A ring oscillator is a device whose output oscillates between two voltage levels, which is used for timing and sequencing of logic circuitry. The inverters are attached in a chain with the output of the last inverter fed into the first one. Ring oscillators only require power supplies to operate; oscillation begins spontaneously. The output of every inverter in a ring oscillator changes a finite amount of time after the input has changed. From here, it can be easily seen that adding more inverters to the chain increases the total gate delay, reducing the frequency of oscillation. The period of an actual integrated circuit ring oscillator varies slightly in a random manner due to noise. This variation in oscillator period is called jitter. The primary cause of jitter in high-speed digital systems is usually noise on the power supplies and in the silicon substrate. Thermal noise can also be a source of jitter, but jitter due to thermal noise is typically negligible. This design will specifically aim at reducing jitter due to supply and substrate noise through the use of modified inverter delay cells.
Download or read book Prediction of Phase Noise and Jitter in Ring Oscillators written by Nathen Barton and published by . This book was released on 2002 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Understanding Jitter and Phase Noise written by Nicola Da Dalt and published by Cambridge University Press. This book was released on 2018-02-22 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gain an intuitive understanding of jitter and phase noise with this authoritative guide. Leading researchers provide expert insights on a wide range of topics, from general theory and the effects of jitter on circuits and systems, to key statistical properties and numerical techniques. Using the tools provided in this book, you will learn how and when jitter and phase noise occur, their relationship with one another, how they can degrade circuit performance, and how to mitigate their effects - all in the context of the most recent research in the field. Examine the impact of jitter in key application areas, including digital circuits and systems, data converters, wirelines, and wireless systems, and learn how to simulate it using the accompanying Matlab code. Supported by additional examples and exercises online, this is a one-stop guide for graduate students and practicing engineers interested in improving the performance of modern electronic circuits and systems.
Download or read book Jitter in Single Ended CMOS Ring Oscillators written by David B. Bowler and published by . This book was released on 2000 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Design of Low Noise Oscillators written by Ali Hajimiri and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Effect of Channel Width on Jitter in CMOS Ring Oscillators written by Yuping Toh and published by . This book was released on 2002 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison and Analysis of Jitter in CMOS Ring Oscillators written by Peroly Natesan and published by . This book was released on 2003 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comparison and analysis of jitter for five different architectures of ring oscillators using a novel simulation technique developed by Professor Forbes' group is presented. Ring oscillators have become an essential building block in many digital and synchronous communications system due to their integrated nature and are widely used in phase-locked loops (PLL) for clock and data recovery, frequency synthesis and on-chip clock distribution and generation. The five different architecture circuits were injected with white noise and flicker noise according to our simulation technique and their jitter performance has been analyzed.
Download or read book Understanding Jitter and Phase Noise written by Nicola Da Dalt and published by Cambridge University Press. This book was released on 2018-02-22 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: An intuitive yet rigorous guide to jitter and phase noise, covering theory, circuits and systems, statistics, and numerical techniques.
Download or read book Timing Jitter and Phase Noise in Electronic Oscillators written by Chengwei Zhang and published by . This book was released on 2003 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the first part of this dissertation, low frequency l/f or flicker noise in the frequency range of Hz to kHz has been identified and demonstrated to be described by temperature fluctuations in heat conduction in bipolar transistors operated at higher power densities. This noise phenomenon is not described by current SPICE programs used in circuit simulations. This noise in the kHz range can modulate LC oscillators and can be the determining factor in causing phase noise in modern wireless communication systems. At lower frequencies or lower power densities flicker noise may still result from number fluctuations or mobility fluctuations but this is not as important in determining the phase noise at kHz offsets from the carrier frequencies. In the second part of this dissertation work, we have developed a large signal nonlinear transient simulation technique to simulate phase noise due to device noise in electronic oscillators. Simulation results are consistent with Leeson's theory and the magnitude of the sidebands directly scales with the magnitude of injected noise. Simulation also shows phase noise at 4.7 MHz frequency offset is white noise dominated and in good agreement with the experimental data reported in the literature. In the third part of this dissertation work, we have developed a large signal nonlinear transient simulation technique to simulate timing jitter in electronic oscillators. Simulation results are consistent with the accepted theory, analytical formula and A. Hajimiri's analytical model for white noise. Two important parameters cycle jitter, and cycle to cycle jitter used to describe jitter performance can be obtained from simulation. Simulation results are also compared with measurement and close agreement was observed between them. We have employed this methodology and investigated the timing jitter in silicon BJT /or SiGe HBT ECL ring oscillators, and we have shown silicon BJT /or SiGe HBT ring oscillators have lower jitter compared to their CMOS counterparts. As such silicon BJT and/or SiGe HBT ring oscillators are a potential choice for low jitter applications.
Download or read book Design and Performance Analysis of CMOS Ring Oscillator written by Sushil Kumar and published by LAP Lambert Academic Publishing. This book was released on 2014-09-16 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the tremendous growth of wireless handheld devices, low power consumption becomes a major consideration in radio frequency integrated circuit (RFIC) designs. This book introduces a multistage voltage controlled ring oscillator. The proposed structure uses 45 nm CMOS Technology in cadence. PSS analyses are performed in order to determine the frequency of oscillation and the influence of parameters such as supply voltage, temperature or load capacitance over the oscillation frequency. A transient analysis is performed to illustrate the effects of the parasitic parameters over the oscillation frequency. Ring oscillators with different number of stages like 7, 9 and 11 were designed successfully and their performance parameters are discussed in great detail and compared to reach to solutions to the challenges faced by the current Ring Oscillator technology. The challenges are phase noise, frequency jitter, period jitter, delay, jitter, total harmonic distortion (THD), transfer function etc. and are dealt appropriately in the system designs proposed for different number of stages. For example, a certain signal may have a phase noise of -80 dBc/Hz at an offset of 10 KHz.
Download or read book Timing Jitter in Symmetric Load Ring Oscillators and the Estimation of Aperture Uncertainty in A D Converters written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Timing jitter in clock signals presents a limitation to the performance of a variety of applications and systems. The criticality of the issue is discussed with the A-D converter as the backdrop. Timing errors in the sampling clock, the analog input signal and the aperture uncertainty of the A-D converter degrade the signal-to-noise ratio performance. In this thesis, a method to estimate the aperture uncertainty of the converter has been developed. The model accounts for the converter's quantization noise and differential non-linearity errors and thereby improves the accuracy of the estimation. The technique was applied to a 10-Bit converter and the results are presented. For clock generation using PLLs, ring oscillators are attractive from an integration and cost point of view for use as a VCO. Their timing jitter can be improved by increasing the output voltage swing, the gate overdrive of the transistors of the differential pair and the power dissipation while maintaining just a minimum required small signal gain for the delay stage. In this thesis, it is shown that the maximum possible output voltage swing is dependent entirely on technology parameters. The proposed oscillator topology uses an n-MOS differential pair with a class of load elements called the 'symmetric loads' and is designed for the maximum possible output voltage swing. Frequency variation is achieved by driving the body of the symmetric loads in order to keep the swing and hence phase noise constant across frequencies. Also, the frequency vs. body voltage characteristics has been derived and found to be linear. Finally, the proposed theoretical predictions have been validated with simulation results.
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.
Download or read book High Frequency Oscillator Design for Integrated Transceivers written by J. van der Tang and published by Springer Science & Business Media. This book was released on 2006-01-14 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text covers the analysis and design of all high-frequency oscillators required to realize integrated transceivers for wireless and wired applications. Starting with an in-depth review of basic oscillator theory, the authors provide a detailed analysis of many oscillator types and circuit topologies.
Download or read book Jitter Performance in High Speed Oscillators written by Yiqin Chen and published by . This book was released on 1998 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: These time-domain noise sources are then reinserted into the SPICE netlist and a second simulation is used to determine the jitter. A comparison is made of the effects of device noise on the jitter of three different high-speed ring oscillators. The comparison shows that the oscillator architecture plays a significant role in jitter performance. Also, the deterministic jitter caused by process variation which is expressed in width, length and threshold voltage of transistor is simulated and analyzed. Simulation result demonstrated the improvement in the jitter performance of oscillators with device scaling. Although the simulation environment focuses on CMOS ring oscillators, the approach is readily extendible to other applications that require a time-domain noise analysis.
