News & Updates
SPICE simulation saves you critical time in the prototyping phase. Understanding your simulation interface makes it simple to analyze how your circuits work in different scenarios. Altium Designer provides an intuitive, dedicated interface to support your simulation verification, setup, and analysis directly in your schematic environment. You also benefit from growing support for popular model formats, as well as generic models, simplifying circuit definition and simulation.
A combination of good printed circuit board design and good shielding mitigates EMI. Good PCB design for EMI shielding revolves around the layout, the placement of filters, and ground planes. A well-designed PCB minimizes parasitic capacitance and ground loops. Keep reading to learn more about PCB shielding.
Any project can get very complex, and the PCB design team needs to track revisions throughout a project. Why worry about tracking revisions? In the event you ever receive changes to product functional requirements, major changes are made to your product’s architecture, or you’re ready to finalize the design and prepare for fabrication, it’s best to clone a project at its current state and begin working on a new version. Keeping track of all these design changes in a PCB design project takes the type of hardware version control tools you’ll find in Altium 365™.
To pour or not to pour, to stitch or not to stitch… Over many years, some common “rules of thumb” have become very popular and, ultimately, taken a bit out of context. Rules of thumb are not always wrong, but taking PCB design recommendations out of context helps justify bad design practices, and it can even affect the producibility of your board. Like many aspects of a physical PCB layout, via stitching and copper pour can be like acid: quite useful if implemented properly, but also dangerous if used indiscriminately.
The primary source of high-speed problems is not due to high clock frequency but rather the fast rise and fall times of component signals. With fast edge rates, reflections may occur at the receiver side, and when the board routing is dense, crosstalk may become a problem. During this webinar, you'll sharpen your knowledge and develop new skills that you can use to design High-Speed PCB's more efficiently and effectively.
Power MOSFETs enable a huge range of electronic systems, specifically in situations where BJTs are not useful or efficient. MOSFETs can be used in high current systems in parallel arrangements, but what about their use in series? Both arrangements of MOSFETs have their pitfalls that designers should consider. Let’s look at MOSFETs in series as they are quite useful in certain systems, but be careful to design your circuits and your PCB for reliability.
I can’t think of a single product I’ve built that doesn’t require capacitors. We often talk a lot about effective series inductance (ESL) in capacitors and its effects on power integrity. What about effective series resistance (ESR)? Is there a technique you can use to determine the appropriate level of resistance, and can you use ESR to your advantage?
If your goal is to hit a target impedance, and you’re worried about how nearby pour might affect impedance, you can get closer than the limits set by the 3W rule. But what are the effects on losses? If the reason for this question isn’t obvious, or if you’re not up-to-date on the finer points of transmission line design, then keep reading to see how nearby ground pour can affect losses in impedance-controlled interconnects.
The primary source of high-speed problems is not due to high clock frequency but rather the fast rise and fall times of component signals. With fast edge rates, reflections may occur at the receiver side, and when the board routing is dense, crosstalk may become a problem. During this webinar, you'll sharpen your knowledge and develop new skills that you can use to design High-Speed PCB's more efficiently and effectively.
If you need to capture sound waves for your electrical device to process, you'll need a microphone. However, microphones these days have become very advanced, and there are so many options to choose from. They range from the relatively simple and popular condenser type microphones to state-of-the-art sound conversion solutions incorporating internal amplifiers and other electronic processing functionality. In this article, we'll take a look at some of the options available.
Involving the whole team that will bring a product to completion early on in the development cycle is vital to efficient development. Design reviews with all the relevant parties are critical at each step of the design process, starting with high-level component selection, then through the schematic capture and PCB layout stages.
Ergonomics and convenience are important issues when designing a printed circuit board and the device as a whole. A lot of Altium Designer tools are aimed at solving them. These include Countersink and Counterbore holes, which allow the use of various types of screws in the mounting holes of the board.
The development of electronic devices always involves the release of many different types of files. And these files are not static - they change as the project progresses. When filling a project with data, a user creates new files, modifies outdated files that have become irrelevant. Managing project data is a separate task, especially for large developments where several participants with different specializations are involved in the process.
High-speed PCBs often require tuning groups of tracks, both single and differential. Altium Designer includes powerful tools that allow you to solve such tasks quickly and with high quality. Study this document and achieve the desired result even faster.
There is one confusion related to impedance matching that comes up again and again, and it appears to be a fundamental confusion between reflection and power delivery. This leads to an apparent contradiction that arises when we try to generalize power delivery to wave reflection, despite the fact that the two were not meant to be related.
Routing is one of the most time-consuming stages of PCB design. Altium Designer has a large set of tools that allow you to do it as accurately and quickly as possible. This document will help you to learn how to manage your routing effectively and use it to its fullest extent.
RF systems operate with specific impedance values across entire interconnects, including on PCBs. Not all RF components are packaged in integrated circuits with defined impedances, so impedance matching circuits and line sections are needed to ensure signal transmission between different sections of an interconnect. One of these impedance matching techniques is the quarter-wave impedance transformer, which can be implemented as a printed trace with specific impedance.
We are happy to announce that the Altium Designer 22.10 update is now available. Altium Designer 22.10 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!
A staff member at a PCB manufacturer once explained to me that they thought we were having an issue with a package warping. Unfortunately, component warping can occur both in a PCB and in components. In this article, we'll give an overview of warpage in a PCB, specifically in the circuit board and in the components.
If you're designing a wireless IoT device, and you know how to calculate the link budget, you can reasonably estimate whether your signal will reach its destination and be read by the receiver. To calculate the link budget, the designer needs to know something about all other sources of gain and loss in the system. Once link budget is determined, the designer can judge whether some modification is needed in their RF signal chain.
SMD components require precisely sized pads for soldering during assembly. The designer is responsible for ensuring pad sizes are correct, either by calculating them and comparing with footprint data, looking through datasheets, or by memorizing SMD pad size standards. If you have a component and you don't have access to the footprint, and you decide to biuld the footprint yourself, what resources are available to ensure you have the correct pad size?
Before we get too deep into this article, I’ll give you the simple answer. You probably can’t fix warping in your PCB after it’s already been fabricated. You can prevent an unwarped board from becoming warped during assembly, but only as long as materials were selected properly and the board is put into reflow correctly. We’ll run over some of these points in this article, and I’ll examine some points that might help you recover a warped board.
The eye diagram is a useful measurement or simulation as part of channel compliance. The measurement shows many different factors that can affect signal behavior simultaneously, ultimately allowing for qualification of errors and losses in a channel. In this article, I’ll run over some of the fundamental measurements that you could manually extract from an eye diagram and how they reveal some strategies for improving channel designs.
To readers who have been working in the PCB industry for most of your career, you have probably seen a very diverse group of professionals with varied skill sets and backgrounds. Designers might get started as engineers or as technicians, and some designers learn how to create beautiful PCB layouts in university. No matter how you got into PCB design, there are some important skills to know that will take you a long way towards advancing your career.
When starting out with PCB design, it’s common to treat the process as simply ‘connecting the dots’: as long as connections are made, it’s not particularly important how these connections are made. Having reviewed quite a number of PCBs of other PCB design engineers over the last few years, there are common, unfortunately erroneous, occurrences between a lot of them. This article aims to illustrate the top five beginner PCB design mistakes and what we can do to avoid making them. Let’s get started!
As the PCB design community embraces the benefits of this new printed circuit board fabrication technique, there are of course many questions to be answered. Today’s blog will address some of the most commonly asked questions related to circuit layer stack up as people are introduced to this new technology.