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Signal Integrity
Browse our library of resources to learn more about pcb design and signal integrity.
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Ebook: Guide to Using Ferrite Beads in a PCB
Ferrite beads in a PCB are the stuff of myth, but there are legitimate uses for ferrite beads and other ferrite components. In this e-book, we’ll examine some uses of ferrite beads in a PCB, as well as other magnetics.
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How Much Copper Roughness in Your PCB is Too Much?
When we talk about copper roughness, we always bring it up as if it were a universally bad thing. The fact is, some circuits will always function just fine even if the copper is rough. As long as your traces are fabricated to spec in every other area, the roughness of the traces might not matter as long as your operating frequency or bandwidth are low enough. Just what constitutes “low enough” and when is the effect of roughness so small that we
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Types of PCB Copper Foil for High-Frequency Design
Does your design need smooth PCB copper foil? It all depends on the frequency range you’re working in. Learn more in this article.
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PCB Transmission Line Impedance Calculators
We’ve compiled a set of transmission line impedance calculators for use in high speed PCB design and RF design.
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Harness mmWave Routing with a Mode-Selective Transmission Line
High frequency and data rate channels can be routed as a mode-selective transmission line. Here’s when you should consider this routing technique.
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Parasitic Extraction with an Electromagnetic Solver in PCB Routing
Parasitic extraction: the integrated circuit design community must grapple with this task on a daily basis, especially once gate features are reduced below ~350 nm and chips run at high switching speeds. The PCB community also has to deal with this idea in order to better design power delivery networks, interconnects with precise impedance, and properly quantify crosstalk and coupling mechanisms. There are many 3rd party applications that can be
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Stripline Impedance Calculator
Learn more about using and interpreting results from a microstrip impedance calculator.
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Microstrip Impedance Calculator
Learn more about using and interpreting results from a microstrip impedance calculator.
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Altium Live Question: Digital Signals in a Grounded Coplanar Waveguide?
Have you considered the effects of a GPCW structure on digital signals? Here’s a hint: look at the S-parameters!
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A Guide to Mode Conversion, Its Causes, and Solutions
Differential pairs are most often discussed in terms of their impedance and length matching tolerance, both with the goal of ensuring proper termination at the receiver and suppression of common mode noise. On interconnects, such as board-to-board connections or cascaded transmission line arrangements, you have an important EMC compliance metric that is sometimes overlooked. This is mode conversion, which can be visualized in an S-parameter
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Differential Stripline Impedance Calculator
Try our differential stripline impedance calculator, built based on Wadell’s equations.
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Differential Microstrip Impedance Calculator
Learn more about using and interpreting results from a differential microstrip impedance calculator.
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How to Impedance Match and Terminate Capacitive Loads
Impedance matching and capacitive load termination are examined in this article.
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How the Gibbs Phenomenon Produces Measurement Artifacts
The Gibbs phenomenon is a measurement artifact that can be mistaken for real signal integrity problems like ground bounce, ringing from reflections, or resonance on short lines.
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Pathological Design Features
Our podcast all-time favorite podcast guest is back to help PCB designers recognize bad PCB design guidelines. Tune in and listen on the go now.
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Know the Impedance
Is understanding impedance really complicated? Expert Tuomas Heikkila will walk us through the basics of impedance. In this article, you will learn where impedance originated which will help you when designing your PCB or electronic projects.
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How Important is your Microcontroller Clock Source
The type of clock signal you need to use for your microcontroller will depend mainly on the nature of the device it’s embedded in and its operating environment.
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