Frequency-Domain Modeling

Some operations that are very complicated in the time domain (like linear filtering, also called convolution ) become simple in the frequency domain. That's one good reason for learning about frequency-domain analysis.

The other reason to use frequency-domain simulation is because it gives you incredible control over the exact form of frequency-dependent losses, like the skin effect and dielectric-loss effect. Because the frequency-domain method may be easily programmed in any software spreadsheet application (like MatLab, Mathematica, or MathCad), you can control any aspect of the simulation, including searching for optimum and worst-case parameter values. For the analysis of a single, long, serial high-speed digital interconnection, especially if the link is terminated at both ends so it adheres to the properties of linearity and superposition, the frequency-domain method may be your best alternative.


Transmission Line Parameters

Performance Regions

Frequency-Domain Modeling

Pcb (printed-circuit board) Traces

Differential Signaling

Generic Building-Cabling Standards

100-Ohm Balanced Twisted-Pair Cabling

150-Ohm STP-A Cabling

Coaxial Cabling

Fiber-Optic Cabling

Clock Distribution

Time-Domain Simulation Tools and Methods

Points to Remember

Appendix A. Building a Signal Integrity Department

Appendix B. Calculation of Loss Slope

Appendix C. Two-Port Analysis

Appendix D. Accuracy of Pi Model

Appendix E. erf( )


High-Speed Signal Propagation[c] Advanced Black Magic
High-Speed Signal Propagation[c] Advanced Black Magic
ISBN: 013084408X
Year: 2005
Pages: 163 © 2008-2017.
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