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PCB Design
Series Termination Resistor Calculation
With transmission lines, some things never seem to be simple. Determining the termination technique and the values of components in a termination network shouldn’t be a difficult task. Most PCB design programs force you to look online for calculators, or you’ll have to run the calculations by hand. Instead, your design software should make it easy to test a range of component values in your termination network. Some components, traces
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Standard PCB Thickness and Your Layer Stack
I’ll confess that I love 1990’s sitcoms. If Jerry Seinfeld were a PCB designer, he would probably ask “what’s the deal with the 1.57 mm board thickness?” It’s a fair question after all, and it makes you wonder why some standard values (e.g., 50 Ohms impedance in RF systems ) are used in PCB design and other areas of engineering. There are good reasons why these and other design values have become in standardized in PCB design, even if they aren't
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The Essential Tools You Need for PCB Design
Whether you’re building a house or building a PCB, you need the right tools in your toolbox. Every designer needs to have CAD tools for component placement, but even command line-based CAD software can be used for accurate component placement. With modern electronic devices becoming more complex at all levels, designers need tools that help expedite essential design tasks. Choosing the right set of PCB design tools requires weighing a number of
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LVDS PCB Layout Guidelines for Ensuring Signal Integrity
When you first get started in high-speed PCB design, you'll spend a lot of time encountering and understanding an alphabet soup of acronyms. MIPI, USB, PCIe interface, SATA PCB layout... the list of acronyms used to name high-speed digital interfaces is long. Low-voltage differential signaling (LVDS) is an older interface that was standardized for differential data transfer at high speeds, but it remains in use today for a variety of imaging and
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Routing Topology Configuration in PCB Design for Power, Data, and Peripherals
Which PCB routing topology matches with which technologies? Take a look at this article to learn more.
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Weekly Digest: Projects and Teams
We’re doing our best to provide the most in-depth information to help designers with productivity, project management and everything PCB design related. Get the latest information here from Industry Experts and catch up on everything published this week, all in one place. Let us know your burning questions or tag us in social media to share one of your projects! Octopart On The OnTrack Podcast with Judy Warner This week Chris Calvi came on the
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Weekly Digest: Optimize Your Documentation and Workflow
Get the latest information from Industry Experts, Altium webinars, videos and more to help you maximize your productivity. We know it takes a lot to go from design to assembly and fabrication so we’re working on providing the most in-depth information to help designers with the most challenging questions. Let us know what questions keep you up at night or consider joining our expert team of writers. New Articles on the PCB Design Blog Check out
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Selecting FR4 Alternatives of PCB Substrate Materials for Multilayer Boards
You don’t have to settle for FR4 for your next multilayer PCB. Read more on selecting other PCB substrate materials.
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All About CMOS, ECL, and TTL Propagation Delay in High Speed PCBs
I still remember the 386 hand-me-down computer my parents gave me as a kid. It was useful for writing simple QBasic programs and spending hours playing computer games, but the computers of today leave my old 386 PC in the dust. With further development of computer architecture and the demands of more modern devices, the propagation delay in logic circuits becomes an important design parameter in a number of systems. In particular, TTL propagation
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Flexible Circuit Stiffener Options
It is common for a flexible circuit stack-up to include a stiffener, read about the different options here.
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Surfing 3D PCB CAD from Inside the Grey Tsunami
APEX San Diego – Riding my long skateboard through the streets of the Gaslamp I must have been quite a sight in my suit and tie. Fresh off the IPC APEX show floor, I was carving turns through traffic, heading back to my hotel after spending several hours discussing the positive wave of 3D PCB CAD with some industry colleagues. Suddenly, I heard two guys laugh and shout at me from the crowded street corner: “Hey, you’re too old to be ridin’ a
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Project Management Tools
My first opportunity to use a project management technique was the Gantt Chart as part of my Engineering Senior Project while in college. At that time, it was all manual. Today, numerous software packages offer it along with other project visibility techniques (Figure 1): Gantt Chart Pert Chart Critical Path Analysis Affinity Diagrams Gap Analysis TimeLine Figure 1. Some of the visualization tools used for project management [1]. No matter what
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Team Development for PCB Designers
There Are Lots of I’s in The Word Team The old adage is there is no “i” in the word team. But, in reality, there are a lot of “I’s”—interface, interaction, intercommunication and integration to name a few. In today’s global supply chain (I use the acronym GSC) economy, product development rarely, if ever, rests with just a handful of individuals or even a handful of companies. In the highly competitive electronics market sector, there are
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Rigid Outer-Layers to Reduce Cost
Why is a 4-layer Rigid Flex Less Expensive than 3-layer Rigid Flex? Designing flex and rigid-flex can be tricky. Not only do you need to design for a product that will bend, fold and flex, you are working with different materials and fabrication processes. Plusm it is difficult to clearly communicate how the part should flex in final application. Typically, the goal is to use the most cost-effective stack up that meets both your electrical and
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Flattening Your Workflow: A Guide to “Flat” Style Project Management
As flat organizations become more popular so do the methods and processes that come along with them. This blog discusses not the flat organizational structure itself but how a flat organization functions within the project management arena. The principles of project management learned from a flat organization can be adopted in the flattest companies to the most hierarchically structured organizations. Being “flat” is hip but why should I do it
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Weekly Digest: Dan Beeker Podcast and more
This week we have a new podcast and a special promotion going on as well. Read on for details. The OnTrack Podcast with Judy Warner What does it mean, it’s all about the space? Tune in to hear AltiumLive speaker Dan Beeker talk about his keynote topic, “ It’s all about the space” . A student of Rick Hartley and Ralph Morrison, Dan is eager to share the behaviors and nuances of the electromagnetic field. Listen in to learn. You can also listen to
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