Reproduced by permission of pearson education, inc. Jitter noise and signal integrity at high speed by mike peng li free ebook download as pdf file. Pdf an analysis of power supply induced jitter for a. Jitter, noise, and signal integrity at highspeed no part of any chapter or book may be reproduced or transmitted in. Appreciable noise on the clock will manifest itself as jitter. High speed circuit board signal integrity download ebook.
Jitter caused by external factors such as thermal noise. Highspeed digital design overview signal integrity. Jitter frequency, the more commonly quoted figure, is its inverse. Signal integrity engineering for highspeed links christian schuster. Li provides powerful new tools for solving these problemsquickly, efficiently, and reliably. Realtime oscilloscopes are preferred for ample debugtroubleshooting and to capture intermittent. However, certain signal integrity signatures such as overshoot, undershoot, and ringing see figure 1. It is so called because, for several types of coding, the pattern looks like a series of eyes between a pair of rails. Signal integrity analysis of 28 gbits highspeed digital signal. Pdf jitter, noise, and signal integrity at highspeed semantic.
Jitter, noise, and signal integrity at high speed isbn. Over short distances and at low bit rates, a simple conductor can transmit. Highspeed links which employ source synchronous clocking architectures have the ability to track correlated jitter between clock and data channels up to high frequencies. A synergistic approach to signal integrity for highspeed digital design. Source, mechanism, and math model for jitter and noise 75. Altera highspeed programmable logic devices provide features to help support highspeed design. Written by the foremost experts on the subject, it leverages concepts and techniques from nonrelated fields such as applied physics. The variance of the noise due to jitter as a function of received subcarrier index when bandedge subcarriers are unused. Jitter is fluctuation in the timeaxis direction of a digital signal. Jitter, noise, and signal integrity at highspeed isbn. Introduction to signal integrity for students and young engineers by abhijit mahajan. Mike peng li, jitter, noise and signal integrity at high. This book is designed to provide contemporary readers with an understanding of the emerging highspeed signal integrity issues that are creating roadblocks in digital design. Examples include serdes for highspeed io signal transmission as well as generalized differential measurements found in highspeed interfaces such as usb 3.
Advanced signal integrity for highspeed digital designs. This can be achieved by following some simple analog design rules and using careful pcb layout techniques. Edn jitter, noise, and signal integrity at highspeed. A synergistic approach to signal integrity for highspeed digital design this book is designed to provide contemporary readers with an understanding of the emerging highspeed signal integrity issues that are creating roadblocks in digital design. A sinusoid signal of a clock signal with phase noise can be written as.
The circuit transmits the clock signal to the gate driver where it clocks a. Preface xv acknowledgements xxi about the author xxiii chapter 1. It also discusses the joint pdfs, with both jitter and noise. It provides many benefits in measuring optical signals with low noisejitter and various measurement features optimized to characterize the optical signals. Jitter, noise, ber jnb, and interrelationships 109 chapter 5. Jitter analysis methods for the design and test of highspeed serial links distribution tail fitting based on gaussian quantile normalization dipl. Statistical signal and linear theory for jitter, noise, and signal integrity 27 chapter 3. However, system timing margins are degraded by channel skew between clock and data signals and highfrequency loss. In a cycle less than 10 hz, this fluctuation is called wander, while fluctuation above 10 hz is called jitter. Stefan erb submitted as thesis to attain the academic degree dr. Jitter, noise, and signal integrity at highspeed no part of any chapter or book may be reproduced or transmitted in any form by any means without the prior written. Noise, and signal integrity at highspeed, prentice hall, 2007. Figure 31 shows an ideal signal and a signal that has jitter with a.
Li provides powerful new tools for solving these problemsquickly. Authors biography hai lan is a senior member of technical staff at rambus inc. Jitter and noise separation and analysis in statistical domain 1. Jitter, noise and eyediagram analysis solution tektronix. Download the ppt file to see teacherspresenters notes i.
Jitter analysis methods for the design and test of high. The resulting waveform resembles an eye, hence the name eye diagram. Signal integrity generally is defined as any deviation from ideal waveform. The higher the ratio, the better the system immunity to noise. Mathcad modelling scripts includes appendix c coded for mathcad v. Cadence sigrity systemsi signal integrity solutions datasheet. Download pdf highspeeddigitaldesign free online new.
Relation between rms period jitter and phase noise using the fourier series expansion, it can be shown that a squarewave clock signal has the same jitter behavior as its base harmonic sinusoid signal. Welldesigned systems have sufficient noise margins, called signal to noise ratio. Jitter period is the interval between two times of maximum effect or minimum effect of a signal characteristic that varies regularly with time. Prediction and measurement of supply noise induced jitter. The terms noise and jitter can mistakenly be confused, even more so as data rates and signal amplitudes have changed over time. Consequently, the jitter on the lowspeed signal can be measured easily using conventional jitter measurement techniques and mapped back to its corresponding value relative to. Receiver jitter tracking characteristics in highspeed. Why skewmatched coaxial cables matter to signalintegrity. As a common transmission line, the microstrip line plays an important role in highspeed circuits. With an unbounded pattern, it typically follows a gaussian distribution.
By using tools that help you rapidly characterize and discover sources of jitter and signal integrity concerns, you can bring new designs to market faster, with more confidence that they operate reliably in todays ultra highspeed environment. In jitter, noise, and signal integrity at highspeed, dr. Written by the foremost experts on the subject, it leverages concepts and techniques from nonrelated fields such as. This paper describes how these key channel effects impact the jitter performance and. Jitter analysis methods for the design and test of highspeed serial. Appendix c includes all the equations from the back of the book, with examples. An analysis of power supply induced jitter for a voltage mode driver in high speed serial links. Traditionally, sampling oscilloscope is the tool of choice for viewing and measuring optical signals.
To examine the lowfrequency jitter components, the spectrum can be zoomed and measured with cursors. With todays highspeed serial buses, there is often significant energy at the 5th. Eye diagram and its relationship to jitter pdfs and noise pdfs. Jitter, noise, and signal integrity at highspeed mike. Jitter, noise, and signal integrity at highspeed book. Declaration of originality i, linson thomas, roll number 214ec2185 hereby declare that this thesis entitled power integrity analysis for jitter characterization presents my original work. The challenges of highspeed design require some additional effort to ensure signal integrity. Statistical signal and linear theory for jitter, noise, and signal integrity 27. The graph is shown below for the fractional oversampling how to reduce the timing jitter. However, digital signals are fundamentally analog in nature, and all signals are subject to effects such as noise, distortion, and loss. New systemlevel techniques for optimizing signalpower integrity in highspeed interfacesfrom pioneering innovators at rambus, stanford, berkeley, and mit as data communication rates. Jitter, noise, ber jnb, and interrelationships 109.
In digital electronics, a stream of binary values is represented by a voltage or current waveform. A guide to making rf measurements for signal integrity. Jitter noise and signal integrity at high speed by mike peng li. It then discusses the noise total pdf and its relationship with the pdfs of its component. Jitter noise and signal integrity at high speed by mike. Introduction reproduced by permission of pearson education, inc. Jitter, noise, and signal integrity at highspeed paperback. Onchip jitterspectrumanalyzer for highspeed digital.
Source, mechanism, and math model for jitter and noise 75 chapter 4. Reducing the jitter noise power by oversampling in high. Power integrity analysis for jitter characterization. Jitter, noise, and signal integrity at highspeed by mike. This property makes the jitter analysis of a clock signal much easier. Introduction to jitter, noise, and signal integrity at.
Jitter noise and signal integrity at high speed issuu. Speed noise and grounding seminar signal integrity. By default, the spectral plot shows the entire jitter content of the signal. Reducing the jitter noise power by oversampling in high speed ofdm system. Using a highspeed scope for digital jitter measurements the following questions and answers were created from the live eseminar broadcast of october 22, 2003. Understanding signal integrity terms and measurements eye diagrams an eye diagram is the result of superimposing the 1s, 0s and corresponding transitions of a high speed digital signal onto a single amplitude, versus time display. In telecommunication, an eye pattern, also known as an eye diagram, is an oscilloscope display in which a digital signal from a receiver is repetitively sampled and applied to the vertical input, while the data rate is used to trigger the horizontal sweep. The pdf of the sum of 2 independent random variable is. Jitter, noise, and signal integrity at highspeed a tutorialpart i. The predicted supply noise induced jitter is shown to correlate well with the measurement data for a high speed io interface operating at 6. As a digital signal becomes attenuated and approaches noise level, the trigger point becomes unstable. Please select some articleschapters to export citations.
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