News & Updates
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Why Most Via Impedance Calculators Are Inaccurate
The problem with every via impedance calculator that I have seen is simple: they are incomplete or totally wrong. The “incomplete” part refers to a lack of context; these calculators can roughly reproduce a well-known estimate from a legend like Howard Johnson in his Digital Design textbooks. However, these calculators never provide insight into what they are actually calculating, or where the calculated via impedance is accurate. Keep reading to see why these calculators get it so wrong, as well as the context surrounding via impedance.
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Buck Converter Simulation in Altium Designer
When designing high power circuits (usually very high voltage and/or current), you’ll need to create a regulator from scratch and place it in your PCB layout. It's also the case that you may want to model a real component using discretes in a simulation in order to qualify the system's expected operating regime. As part of buck converter design, you can easily run a buck converter simulation directly in Altium Designer’s schematic editor. Here’s how you can access these features in the newest version of Altium Designer.
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Overview of the PCIe 6.0 Standard
Just as you get used to PCIe 5.0, they decide to release another standard! The newest iteration of PCIe is Gen6, or PCIe 6.0. PCIe 6.0 brings a doubling of channel bandwidth through introduction of PAM-4 as the signaling method in high-speed differential channels. This signaling method is a first for PCIe, and it’s an important enabler of the doubled data rate we see in the current standard. In this article, I’ll run over the important points in the standard and what PCB designers can expect when designing these channels.
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SPI vs. I2C: How to Choose the Best Protocol for Your Memory Chips
One of the common implementations of SPI and I2C in a PCB layout is as a protocol for reading and writing to an external Flash memory. Flash chips are a very common component in embedded systems and can offer high capacities of non-volatile memory up to Gb values. When choosing a memory chip, you'll want to match the application requirements and functionality with the bus speed you need for read and write operations in your memory chip. There is also the matter of the type of Flash memory you'll need to access (NOR vs. NAND).
On-Demand Webinar
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Tips & Tricks: Board Shape Creation
Being able to design a board in your ECAD environment doesn’t mean that it is manufacturable in real life. You have to make sure your CAD representation won’t have any problems in the real world by taking some precautions. For example, there are certain areas that need to be free of components and have specified clearances like your board edge. This webinar will help you get acquainted with the creation and modification of your board shape so that you can ensure manufacturability.
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Is There an SPI Trace Impedance Requirement?
There is no SPI trace impedance requirement? The reality is that SPI lines only start to need impedance control when the length of the interconnect becomes very long. And because there is no specific impedance requirement in the bus, you have some freedom in channel design and termination. So what exactly qualifies as “very long” and when is some termination method needed? We’ll break it down in this article.
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The Skin Effect, Current Density, and the Electromagnetic Field
During this year's AltiumLive CONNECT event, I recall receiving an interesting question about the skin effect and the distribution of current due to the presence of ground in coplanar transmission lines. In this article, we'll look at the electric field around a transmission line carrying a signal, and how this might be impacted by the skin effect.
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What You Need for PCB Packaging and Shipping
When you get your PCBA back from an assembler, you’ll notice the packaging materials used to pack and ship the PCBA. Those materials are specific to electronics, and if you build products on behalf of clients, it’s important to know the packaging materials used for packing and shipping electronics. In this article I’ll show the main set of materials and equipment used to package electronics assemblies.
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How to Make PCB Gerber Files in Altium Designer Step-by-Step
Once you've got your PCB layout finished and you're ready to start preparing for manufacturing, one of the critical steps is to create PCB Gerber files. When you're ready to create your Gerber files, you need the right set of CAM processor tools that can take data from your PCB layout. In this article, we'll guide you through this process of how to make PCB Gerber files and show some example tasks you might need to perform to generate them.
On-Demand Webinar
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Help Ensure The Best Designs With Component Management
There are many aspects to designing a PCB. One of the larger aspects has to do with managing your components. We all need components for our designs, but are those components in our library and designs up-to-date or even purchasable? These questions need to be answered before we can safely use them. Altium Designer® has several tools to help you manage the components in your libraries and designs.
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Concept Phase – Lid Assembly Design Part 1
In the exciting next phase of the open-source laptop project we're (finally) diving into design, and getting hands-on with the display panel. Discover how we're selecting the right panel, integrating it seamlessly, and creating a custom DisplayPort adapter to illuminate the screen. Plus, learn how our choices impact features like microphones, webcams, and touch sensors, and how Altium can help bring it all to life. It’s not too late to join as we continue on this innovative journey!
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Unleashing the Power of Concurrent PCB Design
Concurrent PCB Design is essential to unlocking the full potential of engineering teams and delivering innovative products that meet the demands of the modern world. Learn more about the main capabilities and the numerous benefits of this upcoming feature in Altium Designer.
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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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