News & Updates
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A Guide to Mode Conversion, Its Causes, and Solutions
On interconnects, such as board-to-board connections or cascaded transmission line arrangements, you have an important EMC compliance metric that is sometimes overlooked. This is mode conversion, which can be visualized in an S-parameter measurement for differential and common-mode signal transmission. In this article, we’ll look at a short overview of mode conversion in high-speed design with some examples from common differential standards.
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PCB Via Size and Pad Size Guidelines
There are some aspects of PCB design and layout that seem deceptively simple, and yet they have a complex answer that is related to many important aspects of manufacturing. One of these design aspects is the match between PCB via size and pad size. Obviously, these two points are related; all vias have a landing pad that supports the via and provides a place to route traces into a via pad. However, there are some important sizing guidelines to follow when the matching pad and via sizes, and this match is an important element of DFM and reliability.
On-Demand Webinar
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Preparing your files for Fabrication Release
When you’re done creating a new board, it’s time to send your design data to the manufacturer. Before releasing your designs, you’ll want to make sure that everything is ready and works as intended. In this informative video, we’ll review some of the must-have checks before sending your output data for fabrication.
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Differential Microstrip Impedance Calculator
Are you looking for a free tool that you can use to calculate the impedance of differential microstrips? We created a simple tool you can use to calculate differential microstrip impedance for a given geometry and dielectric constant. If you’ve been looking for an accurate differential microstrip impedance calculator, then the calculator below is certainly one of the best free tools you’ll find on the internet before you start using field solvers to determine differential pair impedance.
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Getting Through a PCB DFM Check
In this article, we’ll discuss the key design features to implement, and steps to take prior to fabrication that will help prevent some common DFM problems. I’ll also provide examples of where I commonly see these PCB DFM problems in signal integrity circuits.
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What is Spreading Inductance?
If you’re working with a high-speed digital component, there are some simple power integrity rules that should be followed. However, there is one quantity that is sometimes ignored when building a PDN impedance simulation: the spreading inductance of your plane pair. Here are some points designers should know about the spreading inductance of a plane pair.
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PCB Design Basics for New Designers
In this article, I’ll present some design basics that every new designer should follow to help ensure their design process is successful. Some of these points may challenge the conventional view of how circuit boards are constructed, but they are intended to help balance low noise signaling, manufacturability, and ease of solving a layout.
On-Demand Webinar
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Efficient PCB Routing Using Gloss and Retrace Tools
The primary goal of your traces is to carry signals throughout your board without losses. To do this properly, you must familiarize yourself with the requirements for signals on the printed circuit board and how to optimize the topology of the board in terms of signal integrity. We will analyze the most popular routing cases applicable for using the Gloss and Retrace tools in Altium Designer to optimize your signal integrity.
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Selecting Materials for High Voltage PCB Design and Layout
High voltage PCBs are subject to certain safety and reliability concerns that you won’t find in most other boards. If your fabrication house specializes in high voltage PCBs and keeps materials in stock, they can likely recommend a material set, as well as a standard stackup you might use for certain voltage ranges and frequencies. If you need to choose your own materials, follow the tips below to help you narrow down to the right material set.
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When to Use Tented Vias in Your PCB Layout
There are some guidelines I see many designers implement as a standard practice, often without thinking about it. Some of these practices are misunderstood or implemented without best practices. Others are implemented without thinking about the potential problems. One of these is the use of tented vias, which is sometimes implemented in a PCB layout by default. Is this always the right practice?
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What Makes a PCB Enclosure Rugged?
Whether you purchase products off-the-shelf or online, they all come housed within an enclosure. In some cases, these enclosures are intentionally ruggedized to withstand harsh environments or mechanical shocks. You can learn more about enclosures in this new and interesting article.
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Concept Phase – Lid Assembly Design Part 2
We are continuing our journey through the lid assembly design phase of our Open Source Laptop project. In this section, we will discuss the layout of the test adapter and provide a demonstration of the first test for the display panel, along with the initial steps involved in assembling the boards.
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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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