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Signal Integrity
Browse our library of resources to learn more about pcb design and signal integrity.
xSignals in Altium Designer
Signal Integrity Stimulus Design Rules
Basics of Signal Integrity Analysis
Which Types of Opto-Isolators Are Right For Your Signal?
An opto-isolator is an electronic device that can be used to pass information between a diode without passing an electrical current. Because there is no need to directly pass voltage or current between the inputs and outputs in an opto-isolator circuit, these components can be used to provide electrical isolation two regions in a PCB. Opto-isolators act as a protection mechanism, ensuring that harmful electrical currents cannot flow across the
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The Serial Communications Protocols Comparison
At the end of this series, we summarize the advantages and disadvantages of each type of Serial Communication Protocol available to transfer information between microcontrollers, data-producing, and data-processing peripherals, and other intelligent devices.
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Serial Communications Protocols - CAN and LIN
In this article, Part 8 in our series of articles looking at different Serial Communication Protocols, we discuss the popular CAN and LIN protocols combined.
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Bogatin’s “Practical Guide to” Book Series
Eric Bogatin, the Dean of Signal Integrity Academy, is here to talk about empowering PCB designers to become their own experts. Eric also shares the inspiration behind his new book.
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Microstrip Ground Plane Clearance: How Close is Too Close?
Make sure to account for microstrip ground clearance when using copper pour on the surface layer. We’ll examine what happens with microstrips, striplines, and coplanar waveguides.
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Wideband Signal Processing and Analysis in Ultra-high Speed PCB Design
Wideband signal analysis may seem like black magic, but it does more than create pretty graphs. Read our introduction to wideband signal analysis to learn more.
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Troubleshooting EMC from Your Workbench
EMC expert Ken Wyatt joins us in this episode to answer frequently asked EMC questions—a sneak peak to his EMC Book Series.
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The Mysterious 50 Ohm Impedance: Where It Came From and Why We Use It
50 Ohm impedance became the standard impedance used in RF transmission lines long ago, but it is still useful today and is a standard reference impedance used in test equipment.
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FR4 Dielectric Constant and Material Properties
Wondering what is FR4? FR4 is by far the most popular set of PCB substrate materials. Here is how FR4 dielectric constant and your material properties will affect your next PCB.
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S-Parameter Measurements and Errors in Power Integrity
No matter where you look, it seems S-parameters never go away! They are mandatory tools for understanding some systems, such as an interconnect or antenna, while other network parameters can sometimes give a better conceptual understanding of electrical behavior. These parameters are normally reserved for signal integrity among electronics engineers, but if you look hard enough, you’ll find that S-parameters are also used for power integrity
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Controlling Crosstalk In Connector Pinouts
This article will describe this type of crosstalk, the types of disruptions it causes, wherein the design cycle it needs to be factored in and how it can be successfully controlled.
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Interference Amplitude Distortion
I’ve talked about COM and channel analysis in previous blogs, and I’d like to continue the discussion with more visual aids and some example code to enable readers to do some analysis themselves. To start, let’s review what COM is and a high level overview of how COM is calculated. COM is a signal-to-noise ratio of voltage at a point in time. The point in time is the sampling point, and the available signal is the voltage of the pulse response at
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PDS Impedance: The Traditional Approach To PDS Design vs. Energy Flow
Take a look at traditional PDS impedance versus the “energy flow” view of PDS design. We’ll debunk misleading information that could cause your designs to fail.
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How to Analyze Phase Distortion in a Transmission Line
Pay attention to your transfer function if you want to spot phase distortion in a transmission line.
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Huge Vu-meter with RGB LEDs Project
A laboratory journal to guide you through the steps to develop a successful product that value-conscious customers are sure to love.
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Expert Analysis of Measured S-Parameters in dB
Read to learn an introduction about S-parameter analysis. This article covers how to identify port maps, what insertion loss and return loss looks like, how the various S-parameters look in the time-domain, and some additional analysis techniques to use when data mining S-parameters.
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How to do PCB Trace Length Matching vs. Frequency
Keeping high speed signals properly timed and synchronized requires PCB trace length matching vs frequency. Here’s how length matching in PCB design works.
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