View Larger Image. Synopsis: The book Signal Integrity for PCB Designers helps you understand the effects of the layout and interconnect on the integrity of the signal. When the speed of the signal increases, a designer must be aware of the high speed issues of ringing, power supply noise, crosstalk, electromagnetic inteference. The Signal Integrity topics covered in the book includes differential signaling, crosstalk, transmission line, impedance calculation, layer stack up, design for EMI. After reading the book you should also be able to run simple simulation.
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Tutorials Products Services Contact Us. Other Tutorials. Timing Relationship Between Signals 2. PCB designers, more often than not, depend upon the signal integrity experts to guide them in the form of design rules for the PCB layout. This book is expected to form a bridge between the signal integrity experts and the PCB designers.
More importantly, they do not know what happens to the integrity of the signal if certain rules are relaxed for the reason of cost or for the reason of reducing the routing complexity.
After reading the book they should be able to pose reasonable questions to the signal integrity experts whenever they feel that certain compromise can lead to simplified routing, better performance or reduced cost. PCB designers must develop an intuitive approach while observing the design rules. I have tried to write the book in such a way as to help them develop a feel for the subject and generate awareness.
This book attempts to answer some of the common questions raised in a high speed PCB design. What is characteristic impedance? What is the role of the bypass capacitor? How critical is the placement of the bypass and bulk capacitor? What is differential bus and what is the basic design rule for routing differential traces? What is the role of power and ground planes in a PCB design?
What is length matching and how much tolerance is allowed in a typical PCB design traces? This book will not make you a signal Integrity expert. It will however, prepare you to become one. If you are willing, you may like to cover other books and use some of the simulation tools to graduate to become signal integrity expert. With the background of this book you should be able to apply your own thought process in new problems of signal integrity and high speed PCB designs.
You should be able to create a simulation environment and play with, what if scenarios and derive your own conclusions. I have tried to avoid use of advanced mathematics as much as possible. Final results have been presented and real life examples have been given to make better understanding of the facts. The PCB designer should be able to design a reasonably good high speed PCB for existing technologies if he follows this book.
After following this book, I expect the PCB designers to be able to follow the design rules for their particular application. The PCB designers will have to be curious to learn one thing at a time to understand the reason behind the design rules presented to them. They must not hesitate to try to arrive at their own rules which can result in better or simpler implementation, reduced cost They should be able to ask the question - why not this rule?
This book should help them in their adventures. They need to depend entirely upon an experienced Signal Integrity expert for successful completion of a high speed PCB board. This may lead to cost escalation for smaller projects with very limited budgets, but which still come under the preview of high speed design.
An alternative approach under this scenario will be to have the PCB designer get some in depth knowledge of the high speed design. The PCB designer should get enough expertise to know which area needs an expert advice. Simpler areas, e. PCB designer can even run simple simulation to preview signal quality under a given PCB trace geometry and a driver and a receiver model. He can run simulation to estimate cross talk. This will leave only few areas where expert advice can be sought.
The expert advice and in-depth analysis will be required when designing a new circuit or topology or a complex multiple circuit interconnected topology. However, the PCB designer should be ready to devote a lot of time to understand the nuances of the signal integrity, which they may be unwilling to do, as most of them are often pressed to meet a deadline to finish the design. But it will be rewarding if they do spend a little amount of time understanding one thing at a time.
Most PCB designers already do a number of signal integrity tasks in the form of following design rules. Because of their practical exposure, it should be easy for them to extend their understanding of the signal integrity knowledge. Future requirements of design engineer will show greater demand for persons with integral knowledge and an integral experience.
In PCB and electronic circuit design area, we may witness greater demand for person experienced in architecture design, schematic capture, PCB design and signal integrity.
The more domains you know, the less is time wasted in communication between two persons or group of persons in communicating the design needs and checking the implementation. It reduces the design cost and ultimately reduces the product cost, especially for lower volume products.
While knowing everything may seem a lot, it is actually a matter of taking keen interest in the fields surrounding your job. I will conclude that my efforts are rewarding if I am successful in elevating the PCB designers even a little bit.
Signal Integrity For Pcb Designers
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Signal integrity for PCB designers
Signal Integrity for PCB Designers
Signal Integrity for PCB Designers by Vikas Shukla