News & Updates
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AC Coupling Capacitors in PCIe Routing
Coupling capacitors find plenty of uses in analog applications and on differential protocols, acting essentially as high pass filters that remove DC bias carried seen on a signal. In the case of PCIe, there are a few reasons to place AC coupling capacitors on differential pairs beyond the fact that AC coupling capacitors are listed in the standard. In this article, we’ll look briefly at where to place coupling capacitors on PCIe links, as well as the reasons these are placed on PCIe links.
Blog
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Altium Designer 22.7 Update
We are happy to announce that the Altium Designer 22.7 update is now available. Altium Designer 22.7 continues to focus on improving the user experience, as well as performance and stability of the software, based on feedback from our users. Check out the key new features in the What's New section on the left side of this window!
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The Positive Impact of Supply Chain Visibility on Design to Cost
Design to cost is a lofty idea that is only perfectly executed when supply and demand for components are in perfect harmony. Unfortunately, the current landscape for component sourcing makes design to cost more of a balancing act rather than an exercise in price reduction. To help designers in their efforts to balance cost, capabilities, and procurement, we created this ebook to help users understand how modern supply chain tools can help in these complex design problems.
On-Demand Webinar
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Getting Started With File Comparison
One major benefit of using a version control system is the ability to compare PCB design revisions against one another. If you are comparing PCB designs, you need a version control system that is electrically intelligent. It’s important to know who made a change, and when they made it. Altium Designer® and Altium 365® make file comparison easy.
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A Brief Study of Stubs on a PCIe Connector
Stubs are an important topic in high-speed PCB design, and there is a longstanding guideline that stubs should always be removed from all vias on high-speed digital interconnects. While stubs are bad for high-speed lines, they do not always need to be removed. What is more important is to predict the loss profile and frequencies, and to floorplan appropriately to try and prevent such losses.
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PCB Layout Cleanup Before Manufacturing
Once you finish your placement and routing in your PCB layout, it can be tempting to wrap up the layout and send everything in directly to manufacturing. The reality is that the board may still need some work before it is considered finished. The cleanup you perform at the final stage of PCB layout will help you catch any outstanding errors that can't be programmed into your DRC engine, and it gives you a chance to add any outstanding details to the surface layers.
Blog
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Insulated Metal Substrates: Building an LED Panel
In this project we’ll be building a moderate sized LED panel on insulated metal substrate (IMS). This light panel has three different white balance High CRI LED types on it, warm, neutral and cool. By changing the brightness of the different white balances, the light from the panel can be adjusted to match other lighting, making it perfect for film use - but also creating perfect lighting for electronics work. As with all my projects, this LED panel is open source, you can find the Altium project files over on my GitHub released under the permissive MIT License.
Blog
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DFM in PCB Material Selection
Every design should begin with selecting the materials that will appear in the PCB stackup, as well as arranging layers in the stackup to support layout and routing. This section of our PCB manufacturing andc DFM crash course focuses on selecting the right materials for your PCB design. Materials should be selected given the particular design requirements outlined in your specifications.
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How to Start an FPGA PCB Layout For Your Embedded System
FPGAs come in quad or BGA packages that can be difficult to floorplan, especially with the high number of I/Os often implemented in these components. FPGAs offer a lot of advantages in terms of their reconfigurability, but they can require a lot of effort to layout and route without headaches. If you’ve never worked with an FPGA in your PCB layout, we have some guidelines that can help you get started.
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How to Get 3-port S-parameters From a 2-port VNA Measurement
S-parameters are fundamental quantities in signal integrity, and an ability to understand them from measurement or analysis is very important. If you have a 3-port network, like a power divider or circulator, it may appear that you must use a 3-port VNA to measure these S-parameters. It is always acceptable to measure between two ports, but you need to know what exactly it is you are measuring. In this article, we’ll look at the relationship between the true 3-port S-parameters with a 2-port measurement.
Blog
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Crosstalk Reduction and Elimination Techniques in Altium Designer
Whether you're designing a digital board with a ton of traces, or an RF board operating at very high frequencies, any electronic device with propagating signals will experience crosstalk. Learn more about some sure-fire ways you can reduce crosstalk in your high-speed designs.
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Baxandall Volume Control for Audio
The Baxandall volume control is an especially useful, flexible, and simple-to-implement circuit for numerous audio designs. In this article, we will demonstrate how to design this type of equipment.
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Common Flex Design Mistakes and How to Fix Them
Designing flexible circuits involves managing numerous factors. Discover how to prevent mistakes in this process and how to rectify them post-implementation.
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How Much PCB Mask Expansion is Too Much?
In this article you will learn about finding the right balance between PCB mask expansion and potential problems.
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RF Power Amplifier Module PCB Design
RF power amplifiers can be found in many wireless products, often integrated into chipsets or modems. However, in certain specialized systems, you might require higher power output at a specific frequency. This necessitates a discrete amplifier circuit to deliver that power. In this article, we present an example project for a power amplifier that you can incorporate into your RF project.
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Avoid GIGO in Your PCB Simulation Tools
Simulation tools are extremely useful for understanding electromagnetic behavior in a design. Learn more about how to avoid obtaining inaccurate results during your PCB simulation process.
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Choosing a Converter or Regulator For Your Power Supply Design
When designing the power supply for your device, there are lots of different options. In this article, we will take a brief tour of the main choices in DC power supply design.
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The Benefits of Ultra HDI
Learn more about the combination of using both flexible materials and ultra-HDI feature sizes in this article.
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Understanding Power Supply Current Handling Issues: Causes and Solutions
Troubleshooting power supply current handling issues is crucial to achieving optimal performance of your electronic devices. In this article, we will explore the common reasons why a power supply fails to handle the defined output current and provide practical solutions to solving these issues.
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Concept Phase – Cooling and Airflow Part 1
Next step in our open-source laptop project is to explain how to design cooling and airflow. In this article, we can show you the first part of this process, such as airflow concept, fan measurement and clearance.
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Create Connections with Harness Design
Many modern electronics have multiple boards, and connecting those different boards and systems together are harnesses. Learn more about how Altium Designer can help you create harnesses for your own multi-board designs here.
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Do You Know How to Prevent Voltage Fluctuation?
We invite you to explore the causes of output voltage fluctuation. In this article we provide you insights on how to solve and prevent these issues.
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How to Build Your Own Laser Range Finder
In this article we will show you how to create step by step a digital laser range finder for your own. Everything is based on Raspberry Pi board.
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Nucleo Shields Multi-Board Design
Learn how easy it is to create multi-board projects. This practical project article covers the reasons for breaking larger boards into sub-assemblies and explores the various connection options available between sub-assembly boards.
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Analog Solar Tracker Project
In this article you can learn about light sensors while building an analog solar panel tracking system. This open-source project covers multi-channel design, window comparators, driving motors, and photosensors.
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Concept Phase – Initial CAD Design
We are continuing our journey through the open-source laptop project. This article explains an initialization of CAD design process from the early concept and brainstorming phase.
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