News & Updates
Blog
•
Controlled ESR Capacitors: Should You Use Them for Power Integrity?
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?
Blog
•
Microstrip Ground Clearance Part 2: How Clearance Affects Losses
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.
On-Demand Webinar
•
What is High-Speed Design?
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.
Blog
•
Choosing the Right Microphone for Embedded Applications
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.
Blog
•
Composite Amplifiers and How They Give the Best of Both Worlds
There are many times where you need an amplifier with high gain, low noise, high slew rate, and broad bandwidth simultaneously. However, not all of these design goals are possible with all off-the-shelf components. Here are some points to consider when working with a composite amplifier design and how to evaluate your design with the right set of circuit simulation tools.
Blog
•
Reduce Common-Mode Noise in Your Power Supply with Impedance Balancing
Simple switching regulator circuits that operate in compact spaces, like on a small PCB, can usually be deployed in noisy environments without superimposing significant noise on the output power level. As long as you lay out the board properly, you’ll probably only need a simple filter circuit to remove EMI on the inputs and outputs. As the regulator becomes larger, both physically and electrically, noise problems can become much more apparent, namely radiated EMI and conducted EMI in the PCB layout.
Blog
•
Part 1: Why Your PCB Design Review Process Is Obsolete and What You Can Do About It
A PCB design review is a practice to review the design of a board for possible errors and issues at various stages of product development. It can range from a formal checklist with official sign-offs to a more free-form inspection of schematic drawings and PCB layouts. For this article, we will not delve into what to check during a design review process but rather look at how a review process itself usually unfolds and how to optimize it to get the most out of your time.
Blog
•
Part 2: Why Your PCB Design Review Process Is Obsolete and What You Can Do About It
As we established in Part 1, the PCB design review and collaboration practices have room for improvement in many organizations. To address this, we developed Altium 365. Let's examine how running a PCB project through Altium 365 compares to other methods.
Blog
•
What is PCB Star Grounding and Why Would Anyone Use It?
If you look on the internet, you'll find some interesting grounding recommendations, and sometimes terminology gets thrown around and applied to a PCB without the proper context or understanding of real electrical behavior. DC recommendations get applied to AC, low current gets applied to high current, and vice versa... the list goes on. One of the more interesting grounding techniques you'll see as a recommendation, including on some popular engineering blogs within the industry, is the use of PCB star grounding.
Blog
•
Your Guide to PCB Silkscreen
Every PCB has silkscreen on the surface layer, and you’ll see a range of alphanumeric codes, numbers, markings, and logos on PCB silkscreen. What exactly does it all mean, and what specifically should you include in your silkscreen layer? All designs are different, but there are some common pieces of information that will appear in any silkscreen in order to aid assembly, testing, debug, and traceability
Blog
•
Pin-Package Delay and Via Delay in High Speed Length Tuning
Take a look at the inside of some integrated circuit packages, and you’ll find a number of wires bonded to the semiconductor die and the pads at the edge of the component's package. As a signal traverses makes its way along an interconnect and into a destination circuit, signals need to travel across these bond wires and pads before they are interpreted as a logic state. As you look around the edge of an IC, these bond wires can have different lengths, and they incur different levels of delay and contribute to total jitter.
Blog
•
6-Layer PCB Design Guidelines
Once you’ve run out of room on your 4-layer PCB, it’s time to graduate to a 6-layer board. The additional layer can give you room for more signals, an additional plane pair, or a mix of conductors. How you use these extra layers is less important than how you arrange them in the PCB stackup, as well as how you route on a 6-layer PCB. If you’ve never used a 6-layer board before, or you’ve had EMI troubles with this stackup that are difficult to solve, keep reading to see some 6-layer PCB design guidelines and best practices.
Blog
•
Altium Designer 22.5 Update
We are happy to announce that the Altium Designer 22.5 update is now available. Altium Designer 22.5 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!
Blog
•
How Reliable is Your Hybrid PCB Stackup?
PCB stackups often incorporate slightly dissimilar materials that could pose a reliability problem. Hybrid PCBs are one case where the PCB stackup will include different materials, typically a standard FR4 laminate and a PTFE laminate for RF PCBs. Designers who want to take the lead on material selection when designing their hybrid stackups should consider these factors that affect reliability. As with any PCB stackup, make sure you get your fabricator involved in the manufacturing process early to ensure reliability problems do not arise during production.
Blog
•
Monte Carlo Simulation vs. Sensitivity Analysis: What’s the Difference?
In a previous article about circuit simulation and reliability, I looked at how Monte Carlo analysis is commonly used to evaluate circuits that are subject to random variations in component values. Sensitivity analysis is a bit different and it tells you how the operating characteristics of your circuit change in a specific direction. Compared to a Monte Carlo simulation, sensitivity analysis gives you a convenient way to predict exactly how the operating characteristics will change if you were to deliberately increase or decrease the value of a component.
Blog
•
Creating Continuous Integration Pipelines for FPGAs
Field Programmable Gate Arrays, or FPGAs, have become ubiquitous amongst high-speed, real-time digital systems. The speed at which FPGAs operate continues to increase at a dizzying pace but their adoption into Continuous Integration pipelines seems not to trail as closely. In this article we will review the concept of CI pipelines, their application to FPGAs, and look at examples on how to set this up.
Blog
•
Soft Locks [Conflict Prevention] in Altium 365
Conflicts can occur when multiple people work on the same project simultaneously. The user might not realize that they are not looking at the latest version of the documentation, leading to problems later. To address this issue, Altium features an intuitive graphical user interface that allows you to examine conflicts quickly and carefully
Blog
•
The Basics of Monte Carlo in SPICE: Theory and Demo
Anytime you place a component in your PCB, it’s almost like you’re gambling. All components have tolerances, and some of these are very precise, but others components can have very wide tolerances on their nominal values. In the event the tolerances on these components become too large, how can you predict how these tolerances will affect your circuits?
Blog
•
What's In Your BGA Land Pattern and Footprint
If you look in datasheets for most components, you’ll often find a recommended land pattern, usually alongside some mechanical package information and assembly information. This is not always the case with BGA components, especially components with high ball count. There are a few reasons for this that we can speculate: those ball counts might just be too big to put into a single page, or the manufacturer just expects you to know how to create that land pattern.
Blog
•
MIDs Make a Comeback as Vertical SMD Modules for Your PCB
Molded interconnect devices are essentially plastic molded substrates with traces running along any surface, including at right angles and running vertically. Altium users can use the new 3D Routing extension to design their own component carriers, which can be mounted vertically in a standard assembly process. If you’ve always wanted to vertically mount components or entire circuits, but without the expense of adding a flex section to your design, the new 3D Routing extension with HARTING’s component carrier designs provides a unique solution.
Blog
•
MCAD CoDesigner 2.9.0 is Out
Altium has released version 2.9.0 of the MCAD CoDesigner. This version has the option to exclude small components when transferring from ECAD to MCAD. The arc behavior was improved, and the support for splines in board shape and cutouts was added. With this release, you can now select a specific SOLIDWORKS configuration of a part to use on the board and view the improvements made for Siemens NX.
Blog
•
Support for Rigid-Flex in Altium Designer
Altium Designer's world-class PCB design features help users quickly get started with new rigid-flex designs and prepare them for manufacturing. Rigid-flex in Altium Designer starts with designing a manufacturable PCB layer stack complete with via transitions and any calculated impedance requirements. Keep reading to see how Altium Designer supports your flex and rigid-flex designs.
Blog
•
2+N+2 PCB Stackup Design for HDI Boards
Like any other advanced PCB, success in HDI design comes from designing the right stackup. One common HDI stackup used to support routing into moderate pin count, high-density BGA components is the 2+N+2 PCB layer stack for HDI boards. We’ll explore this stackup more in this article, as well as how it is related to other advanced stackups used in HDI PCBs.
Blog
•
PDF in Altium 365 Web Viewer
Altium 365 Web Viewer now includes a built-in PDF viewer that allows you to view PDF files in releases without an external PDF viewer application. Keep reading to learn about new key features that make your work easier
Blog
•
Flex and Rigid-Flex PCB Applications
There are two basic reasons for designing a flex circuit into your product: to build a compact and efficiently assembled device, or to make the circuit dynamically integrated with the mechanical function of the product. You may, of course, lean on both of these reasons for justifying the use of flex circuits. On this note, let’s look at some rigid-flex PCB applications and design examples to see the issues that spring to mind when designing flex circuits
Blog
•
Granular Sharing — Role and Group Management
With Altium 365, you can grant permission to teams or users based on the specific needs of a project. We have expanded Altium 365’s file-sharing setting, giving you more granular control over who can download source files and reshare projects with others
Your search returns no results.
