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High-Speed PCB Design
Simple solutions to high-speed design challenges
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High-Speed PCB Design
High-Speed Design Techniques: Trace Tuning for Routing Length Matching
The first time I heard someone talking about “tuning” their high speed design techniques, the memory of my middle school band came to mind. Back in those days, “tuning” meant taking kids who lacked experience and who used tired old instruments and trying to turn it all into something that blended together. As you would expect, our first attempts at being in tune were not very successful. After some work learning about signal integrity, the ground
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Introduction to High Speed PCB Designing: Techniques for Avoiding Crosstalk
Wondering how to reduce crosstalk? Crosstalk is the unintentional electromagnetic coupling between traces on a PCB. Let’s take a look at what crosstalk is and how to reduce crosstalk in high-speed PCB design.
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PCB Design Software Features To Consider
Before making a decision on buying a home, you would probably ask a lot of questions. Is it close to the facilities and services that are important to you? Is it in a good and safe neighborhood? Will the layout of the house satisfy your needs? These are all important questions that need to be answered before you commit to living there. In the same way, buying new PCB design software deserves the same level of scrutiny. You will want to find out
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Omer Mahgoub from Square Kilometer Array (SKA) Africa and PCB Design for Astronomy
Judy Warner: Omer, will you please share what the SKA is, what countries are involved, and what purpose it serves? Omer Mahgoub: The SKA (Square Kilometre Array) is an international effort to build the world's largest radio telescope, with a total collecting area of 1 square kilometer and located on two continents (Africa and Australia). Organizations from 10 countries are members of the SKA: Australia, Canada, China, India, Italy, New Zealand
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High Speed PCB Design Considerations: Bypass Capacitor Place and Route Tips
Many years ago, the majority of the board designs that I was involved with were simple digital designs. Placing and routing bypass capacitors in those designs was very easy, and often the circuitry was slow enough that ceramic capacitors were not needed. Most of the time we considered bypass capacitor placement and routing as more of an afterthought than as a primary design consideration. I remember how some of the engineers even instructed me to
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Engineering a Layer Stack Up for High Speed Design
Most of your board's simpler EMI/EMC problems, signal integrity problems, and power integrity problems can be solved or reduced with the right layer stackup. In high-speed PCB design and in RF PCB design, the layer stackup is the first place to start engineering the board to ensure it will operate within the intended operational parameters. But like any engineered component, a high-speed layer stackup must balance many functional goals, as well
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High Speed PCB Layout Guidelines: Placement Tips and Strategies
In real estate, the buzzword is; “location, location, location”. Interestingly enough, the same can be said of high-speed PCB layout. Although all aspects of the high-speed PCB design process are important, component placement is especially important for ensuring easy routing, minimizing EMI, and possibly eliminating the need for some extra layers. Location placement methods that work without a problem in a standard PCB design may not satisfy the
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High Speed PCB Design Considerations: Component Shapes Considerations
When starting a high speed PCB design, there’s a lot that must be considered before the design ever gets into layout. Schematic organization, board materials & layer configuration, critical component placement, and how high speed signals are to be routed are all aspects of high speed design that need to be planned for. Often there is one area that doesn’t get as much consideration as everything else, and that is the component footprint shapes
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Stripline vs Microstrip: PCB Routing Differences and Guidelines
Traces in a PCB are given two possible names based on their location in a PCB stackup: striplines and microstrips. In a PCB, a stripline and microstrip are two different transmission line structures used in a PCB layout. Microstrips and striplines also come in the coplanar and differential varieties, and all of these have certain advantages when used for high-speed or high-frequency signals. If you're looking for a thorough comparison of
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Introduction to High Speed PCB Designing: Is FR-4 the Best High Speed Material Choice for High Speed PCB Design?
We’ve all been there at one time or another when we’re tasked with a project that lies outside our comfort zone. For me, that day came when my boss asked me to design a high speed board. While I considered myself to be a somewhat experienced PCB designer, I knew that high speed PCB design has many restrictions that you do not normally encounter when you’re designing an average circuit. Initially I invested time into making my schematics
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Using Grounding to Protect Your PCB from ESD Damage: PCB Design Tips & Tricks - Altium Audio Bites
Altium Audio Bites, giving you bite-sized information that's easy to digest and apply to your everyday design tasks. From our PCB Design Tips & Tricks audio series here is: Using Grounding to Protect Your PCB From ESD Damage. All our audio series are from real PCB designers in the field, detailing their day to day problems and experiences. We hope you can learn from this as much as we have. Give it a listen and let us know what you think in the
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High Speed PCB Design Guidelines: An Overview for Getting Started: PCB Design Tips & Tricks - Altium Audio Bites
Altium Audio Bites, giving you bite-sized information that's easy to digest and apply to your everyday design tasks. From our PCB Design Tips & Tricks audio series here is: How Speed PCB Design Guidelines: An Overview for Getting Started. All our audio series are from real PCB designers in the field, detailing their day to day problems and experiences. We hope you can learn from this as much as we have. Give it a listen and let us know what you
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Machine to Machine Communication and Internet of Things Can Benefit from Wireless Connectors
Have you ever bought a new gizmo or gadget and wondered how you lived a life before it? For me, smartphones obviously come to mind. When I was a kid I was content to play with sticks and rocks. Now my kids play with virtual sticks and rocks on their iPhones. High-speed wireless M2M connectors will be like that for the Internet of Things. Keyssa has developed a new short-range chip that operates in the 60 GHz band that they say will replace all
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High Speed PCB Design Guidelines: An Overview for Getting Started
One of the most common questions I receive from new designers and new hardware developers relates to the differences between high-speed digital designs and any other circuit board. Everyone naturally assumes the clock frequency defines the limit where we consider a design to be operating at high speed, but this is not the whole story. High speed designs can be identified by the presence of two common characteristics: The presence of standardized
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Semiconductor Fibers: What Will Replace Fiber Optic Cable Transmission Lines?
The Internet is a strange and wonderful place. I grew up at the end of the age of dial-up Internet when chat rooms were all the rage. Now, I occasionally enjoy using the Internet to play some online games, which was impossible back then. My telephone router and its copper network could barely support enough bandwidth to load an image. Now our networks have been upgraded with blazing fast fiber optics. While these communication systems are
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The Correct PCB Routing and PCB Layout to Help Protect Your Board From ESD
When I started running, I went with a friend who had finished several ultramarathons. She would run miles from her house, do a short loop with me, and then carry on without me. When I got faster, instead of getting to go home sooner, she made our loop longer. She was tricky about it, too. She always planned a route where it would be boring for me to turn around early, or on new trails so I’d get lost trying to take a “shortcut” back. As an urban
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PCB Design Guidelines for High-Frequency Circuits in Car Radar & 5G Applications
One of the latest evolutions in next generation of 5G PCB design guidelines is being driven by two emerging technologies, 5G networks and advanced driver assistance system (ADAS) enabled cars. Both of these technologies use something long feared by PCB designers, the extremely high-frequency (EHF) band. Read on and prepare your boards for a high-frequency future. This morning I saw a very strange sight while walking down my street. A long
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