- Hardcover: 384 pages
- Publisher: Prentice Hall; 1 edition (8 April 1993)
- Language: English
- ISBN-10: 0133957241
- ISBN-13: 978-0133957242
- Product Dimensions: 18.5 x 2.8 x 23.6 cm
- Average Customer Review: 5.0 out of 5 stars See all reviews (3 customer reviews)
Amazon Bestsellers Rank:
277,612 in Books (See Top 100 in Books)
- #131 in Books > Science & Nature > Engineering & Technology > Engineering Skills & Design > Industrial Design
- #136 in Books > Science & Nature > Engineering & Technology > Electronics & Communications Engineering > Electronics Engineering > Circuits
- #282 in Books > Computers & Internet > Computer Science > Architecture & Microprocessors
- See Complete Table of Contents
High Speed Digital Design (Prentice Hall Modern Semiconductor Design) Hardcover – 8 Apr 1993
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More About the Author
From the Back Cover
Focusing on a combination of digital and analog circuit theory, this comprehensive volume will help engineers who work with digital systems, shorten their product development cycles, and fix their latest high-speed design problems.
- Covers signal reflection, crosstalk, and noise problems that occur in high-speed digtal machines (above 10 megahertz).
- lncludes checklists that ask the questions an experienced designer would about a new system.
- Offers useful formulas for inductance, capacitance, resistance, rise time, and Q.
- Explains the trade-offs between signal cross talk, mechanical fabrication of tolerances, and trace routing density.
- Presents a methodology for determining how many layrs will be required to route a printed circuit board.
About the Author
Howard W. Johnson is president of Olympic Technology Group, Inc., of Redmond, Washington, a digital electronic design and consulting organization. Before founding the firm, he was Manager of Technology and Advanced Development at Ultra Network Technologies, a manufacturer of gigabit-per-second local area networks for supercomputers. Since obtaining his Ph.D. in 1982 from Rice University, he has specialized in the design of high-speed digital communications and digital signal processing systems.
Martin Graham has been a Professor of Electrical Engineering and Computer Sciences at the University of California at Berkeley since 1966, where he teaches the design of reliable and manufacturable electronic systems.
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Top Customer Reviews
Lot of the material covered in this book has been handed down by word of mouth for many years. This book covers many important aspects of board design - transmission lines, grounding, cross talk, reflections, termination & vias. In the high speed world if proper design principles are not applied, signals can behave in an unusual manner. Signal integrity is of utmost importance. None of these are dealt with such a practical approach in school, and hence this subject matter came to be known as "black magic" among practicing engineers.
This book covers analog & digital design principles in depth, and gives you real world examples. At the end of every section, the authors summarize the key points that were learnt from that discussion. It is a very useful feature. You can just refer to these if you have to find out what kind of termination your signal needs or how long you can run a clock line without signal interference. In addition to these essential topics, this book also covers other useful topics such as clock distribution, cables & connectors.
It is needless to say that this book in the right instructor's hands would be an explosive combination.
If you are in any way involved in design, layout or analysis of digital designs which operate at 20+ MHz, then this book will become your standard reference. Having got it, I don't know how I survived without it.
Most Helpful Customer Reviews on Amazon.com (beta)
Second, I should caution young engineers that the authors of this book enumerate several stratagems in high-speed design; some good, some bad. That is, not all of the tricks in later sections are sound engineering practices. Experienced engineers will be able to differentiate between sound engineering practices and hacks, and when compromises should be made. Young engineers may be lead astray too easily.
Lastly, this book is a good book if you already know something of the subject. If you had only to buy one book, I'd recommend "High-Speed Digital System Design: A Handbook of Interconnect Theory and Design Practices" ISBN: 0471360902.
After reading that book, I'd purchase this book, as this book has some practical information, for example, on choosing capacitor dielectrics, oscillators, etc., not contained in the first.
To take one example (page 134,) Johnson purports to describe problems associated with a wire-wrapped prototype processor board containing TTL devices operating at high edge rates ( 2 ns.) According to Johnson, the design engineers failed to realize that the circuits would ring excessively, making the board unusable. To "prove" this he posits a model consisting of a 30 ohm TTL driver, with a 2 ns rise time, a 4" length of wire with 89 nH of self inductance, and a 15pf load - a series LRC circuit. Yes, this circuit will ring wildly, but the model is totally incorrect. The TTL input is not considered, which has a relatively low input impedance in the low state since it is current operated. This circuit -effectively a parallel LRC - does not ring nearly as much, as any experienced engineer knows. As a reality check, remember that wire wrap was successfully used for years by thousand of engineers. To listen to Johnson, though, this technology is almost unusable. Wire wrap circuits do ring, but under his example, the real amount of overshoot/undershoot is well within the limits of TTL. Further, no real circuit produces textbook looking traces, so the role of experience is to learn what worst-case design means, and what is acceptable for good manufacturing yield. Lesson: real experience teaches you how to produce correct, functional models. An incorrect model will cause you grief.
Much could have been done here, to be useful, by way of analysis and of recommendation. The wire should have been modeled as part of a transmission line, not as a lumped element, which any high speed digital design engineer would know, and the idea of terminating a transmission line should have been introduced. This is standard fare. Even with the series LRC, instead of deriving the formula for critical damping, he instead says: "This approximation (reduce Q to .5) is derived from the solution to a second order linear differential equation describing an RLC low pass filter. First find the point at which the derivative of the solution passes through zero (a maximum point) and then evaluate the solution at that point."
Got that? Take the derivative of a solution you want to find? Any book on circuits will reduce this to the solution of a quadratic equation. Obfuscating something that's really elementary does not help produce genuine insight. But this is what Johnson does throughout the book.
Isn't it simpler to say that if you have fast rise time signals, treat most connections as transmission lines, and add termination resistors? As for a series RLC, use the formula for critical damping: R = 1/2 (sqrt(L/C))
Considering how specialized and complex the book's subject matter is, it's surprising how well the authors manage to avoid hard math; they obviously made a conscious effort to use the most intuitive formulas possible whenever they could. There are maybe a handful of differential equations in the book, but most of the math requires no calculus, just basic algebra. The moderately math-phobic should be able to handle this book if you can understand what derivatives and integrals are.
A bit of a rant: Everybody gets so hung up on the title! Did any of the people who complain that HSDD isn't really "black magic" actually bother to even open the book? Right in the preface, the authors explain that HSDD is regarded as something of a "black magic" by engineers because it isn't taught in most college programs, but "The authors would like to dispel the popular myth that anything unusual or unexplained happens at high speeds. It's simply a matter of knowing which principles apply, and how." The title is meant to be humorous, people; lighten up! A lack of a sense of humor is a sign of an ineffective engineer.
This book really is just an introduction. You're not going to go out and design a gigahertz-level PC motherboard when you've read it through, but it'll prepare you for more advanced material like the "Advanced Black Magic" sequel, and tons of similar advanced books on the market. The book's strength is in its easy writing style and broad, concise scope. Recommended for anyone who knows basic electronics but wants to become a professional signal electronics engineer.
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