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Ground Pour, Impedance and Losses
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.

Altium Designer Interface
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. 

Choosing the Right Microphone for Embedded Applications
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.

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How to Work with Multichannel Schematic
Creating Schematic Channels

Altium Designer makes creating single and multichannel designs effective and quick. We’ll show you how to create and annotate output and input channels in your design. 

 Computer planet with circuit grid
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.

Impedance balancing power supply
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.

Embedded thumbnail for Using Snapping for Primitives and Components | Draftsman Documents
How to Work with Draftsman
Using Snapping for Primitives and Components | Draftsman Documents

Snapping using the grids and snapping tools in Altium Designer’s Draftsman Editor gives you a lot of control over how you create and annotate primitives and components. We’ll show you how easy it is to use snapping in the Draftsman Editor. 

Part 1: Why Your PCB Design Review Process Is Obsolete and What You Can Do About It
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.

Embedded thumbnail for Pin Package Delay | High-speed Design
How To Work with High-Speed Projects
Pin Package Delay | High-speed Design

There are a few things to consider when adding and tuning signal delay to your design. Altium Designer gives you the tools to address the fine tuning for signal delay so you can easily make it work, using pin package delay. 

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How to use Snapping
Introduction to Snapping Options

Introduction to snapping options: grids, guides, axes of objects, and snapping to objects.

Star ground PCB
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.

Silkscreen on PCB
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

Embedded thumbnail for Working with Tables | Draftsman Document
How to Work with Draftsman
Working with Tables | Draftsman Document

The Draftsman Document Editor allows you to add all your data for your design through tables. We’ll show you how to work with tables, and the various options to add and edit, such as Bill of Materials, Drill Tables, Transmission Line Tables, and custom tables. 

Embedded thumbnail for Pin Part Swapping | High-speed Design
How To Work with High-Speed Projects
Pin Part Swapping | High-speed Design

If you have a lot of traces intersecting on a single layer, but you need to minimize the amount of vias for your high speed design, you can utilize pin and part swapping. Altium Designer has tools to solve these issues, and we’ll show you how to solve them.

Gibbs ringing
Blog
What Causes Gibbs Ringing in High-speed Channel Simulations?

Designing high-speed channels on complex boards requires simulations, measurements on test boards, or both to ensure the design operates as you intend. Gibbs ringing is one of these effects that can occur when calculating a channel’s response using band-limited network parameters. Just as is the case in measurements, Gibbs ringing can occur in channel simulations due to the fact that network parameters are typically band-limited.

Heated component on PCB
Blog
Efficient Heat Dissipation with SMD Heat Sinks Keeps You From Dropping PCBs

In electronics, there is the possibility that your PCB can get pretty hot due to power dissipation in certain components. There are many things to consider when dealing with heat in your board, and it starts with determining power dissipation in your design during schematic capture. If you happen to be operating within safe limits in a high power device, you might need an SMD heat sink on certain components. Ultimately, this could save your components, your product, and even the operator.

Embedded thumbnail for How to Route High-Speed Designs | High-Speed Design
How To Work with High-Speed Projects
How to Route High-Speed Designs | High-Speed Design

Routing for your high-speed design can be really easy with just a little preparation. We’ll walk you through the best ways to set up your routing so you can easily route your high-speed signals. 

RF PCB
Blog
RF Power Supply Design and Layout Guide

One thing is certain: power supply designs can get much more complex than simply routing DC power lines to your components. RF power supply designs require special care to ensure they will function without transferring excessive noise between portions of the system, something that is made more difficult due to the high power levels involved. In addition to careful layout, circuitry needs to be designed such that the system provides highly efficient power conversion and delivery to each subsection of the system.

Prevent Overvoltage, Overcurrent and Heat logo
Blog
Methods to Protect your Circuit

Overvoltage, overcurrent, and heat are the three most likely events that can destroy our expensive silicon-based components or reduce our product’s life expectancy. The effects are often quite instant, but our product might survive several months of chronic overstress before giving up the ghost in some cases. Without adequate protection, our circuit can be vulnerable to damage, so what should we do? Or do we need to do anything?

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Sharing Settings in Altium 365
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

Use your DRCs
Blog
Design Rule Checking in the PCB Design Workflow

Any time you design a PCB, and you want to turn it into a real product, you will have to make sure the design obeys the constraints within the standard PCB manufacturing process. This imposes multiple rules on any design, and ECAD software will enforce design rules as you create the board to ensure you obey these important constraints. Make sure you enforce the right design rules at the beginning of the PCB design workflow 

How to select high frequency materials
Blog
Best Practices for High-Frequency PCB Material Selection

High frequency PCB design can seem esoteric, and I've heard many an engineer describe it as "black magic"! The subject is also a bit confusing, especially once someone asks which frequencies could be reasonably considered "high". Before you do anything inside the layout for a high-speed or RF PCB, you will need to pay attention to the materials being used in the board. If you're unsure which high frequency PCB materials you should use, then keep reading to learn more.

PCB Noise Reduction
Blog
PCB Noise Reduction: Do You Need Isolation, Shielding, or Filters?

Of all the noise and operational challenges designers face in their PCBs, there is one overarching problem that is arguably most popular: electronic noise. It could originate as an SI/PI problem, it could possibly arise from some external source, or it could be good old-fashioned crosstalk! These tend to fall into three categories: adding shielding, doing something to create isolation, or placing filters. Let's look at all of these as they tend to be the default solution set when confronted with many noise problems.

What’s New in Altium 365
Blog
What’s New in Altium 365: Version Control for Hardware, Layer Stackup in Web Viewer, and SOC 2 Type 1 Certification

In February, we hit a new record in the number of users on the platform. The Altium 365 user community is now 20,000 strong! You can now migrate from an external version control system to Altium 365 preserving the history of commits. We also received the SOC 2 Type 1 certification from KPMG, made layer stack available in the web viewer, and added the brand new capability to track tasks in the context of your design project. Keep reading to learn more!

Rigid-Flex in Altium Designer
Blog
Support for Rigid-Flex in Altium Designer

Rigid-flex in Altium Designer starts with designing a manufacturable PCB layer stack complete with via transitions and any calculated impedance requirements. Flex sections also need to be placed in the layer stack before moving into the PCB layout. Once inside the PCB editor, bending lines can be clearly defined in the PCB layout, and these can be visualized in Altium Designer's 3D PCB design tools. Keep reading to see how Altium Designer supports your flex and rigid-flex designs.

Specifying your stackup
Blog
Communicating PCB Layer Stackup Needs to Manufacturers

In the business of PCB design, communicating needs to manufacturers and vendors is a top priority. The context of our requests is sometimes lost either by not providing the correct information, not listing enough information, or not giving any information. Although the experienced PCB designer can take steps to specify everything they want to see in their PCB stackup, eventaully the manufacturer will handle that decision in an effort to balance available materials with processing capabilities and yield.

Risk Vs. Reward
Blog
Risk Vs. Reward

During the recent IPC APEX expo, there was a lot of discussion about SAP, or semi-additive PCB processes.  As with any new technology adoption there were people that are excited to jump right in and start designing with much finer feature sizes and work through the inevitable changes to the traditional thought process. Others are in a "let’s wait and see" mode and of course there are a few skeptics there as well, so keep reading to learn more.

Parasitic Extraction for your traces
Blog
Parasitic Extraction with an Electromagnetic Solver in PCB Routing

Parasitic extraction: the integrated circuit design community must grapple with this task on a daily basis, especially once gate features are reduced below ~350 nm and chips run at high switching speeds. The PCB community also has to deal with this idea in order to better design power delivery networks, interconnects with precise impedance, and properly quantify crosstalk and coupling mechanisms.

PCB
Blog
Ebook: PDN Simulation and Analysis Guide

Most designers don’t realize they need to worry about power integrity until they have a power integrity problem. Other designers might build boards that can’t handle the demands of modern digital and high frequency components, and they may not realize the problems that lurk in their power delivery network (PDN). Although the basic concepts involved in designing for power integrity are well-known, myths about power integrity abound, and designers need tools to help them evaluate and qualify power integrity in a PDN.

Ferrites in PDN Simulation
Blog
Ferrite Beads and Transfer Impedance in a PDN Simulation

The use of ferrites in a PDN is one design recommendation that is fraught with unclear guidance and over-generalized recommendations. If you see an application note or a reference design that recommends placing a ferrite in a PDN, should you follow this in your specific design, or should you ignore this and focus on adding capacitance? 

PCB Design Outputs
Blog
Overview of PCB Design Output Files

Before your board can be put into production and prepared for assembly, you have to generate a set of files that assist your manufacturer. These are your PCB design output files, also known as manufacturing files, fabrication data, assembly files, and a host of other names. Before you send your design file off to a manufacturer in an email, make sure to get a list of their required fabrication and assembly files first. If you’re a new designer, take some time to read over the basic PCB manufacturing file extensions below.

How transformers work
Blog
Transformer Theory Made Simple

Transformers can provide very effective signal isolation and are used to manipulate AC voltage and current levels. They can achieve all this with a greater than 95% power efficiency, which is why we commonly see them used in bench power supplies, audio gear, computers, kitchen appliances, and wall-warts. However, transformer theory can be unintuitive and in this article we answer on questions about them

Take advantage of the VCS-based workflow in Altium 365
Blog
Using Altium 365 Over Your Vanilla Version Control System

There are all sorts of version control systems (VCS) out there that people have been using with their PCB design software. As discussed in Why Use a Version Control System, we looked at different options ranging for local hard drive storage to sophisticated online revisioning systems. In this article we will be reviewing the differences between a standard VCS and Altium 365.

Recovering Copper Losses
Blog
Recover Conductor Losses By Clearing Your PCB Ground Layer

Controlled impedance routing at high frequencies is difficult enough, and it's important to make sure that you stay within your loss budget on long routes or in lossy media. When you have to route a long trace or a long differential pair to a connector or another component, what can you do if you're reaching the end of your loss budget? In this article, we’ll take a look at the skip reference routing method and explain how it can help recover some loss budget in a lossy interconnect.

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Embedded thumbnail for Types of Component Variations
How to work with Variants
Types of Component Variations

Altium Designer allows you to implement several different types of component variations. We’ll show you the differences between fitted, modified parameters, not fitted, and alternate Part variations, as well as how to add and manage these variations for your design.

Embedded thumbnail for Query Language: Basic Concept Part III
Query Language
Query Language: Basic Concept Part III

Often the criterion for searching certain objects in Altium Designer is matching parameters to some string (text) values. Learn from this video how to use substitution symbols in queries and increase your productivity when working on projects

Embedded thumbnail for Solder Mask Expansion and Minimum Sliver
DFM and Fabrication Cost/Time Constraints
Solder Mask Expansion and Minimum Sliver

Using the solder mask expansion and the minimum solder mask sliver rules, you can make sure your solder mask layer doesn’t interfere with any of your exposed copper and is manufacturable.

Embedded thumbnail for Query Language: Basic Concept Part II
Query Language
Query Language: Basic Concept Part II

Do you want to learn how to make more complex queries consisting of several commands? This video is about auxiliary operators that exist in the Altium Designer query language, and how to combine and use them together.

Embedded thumbnail for Teardrops for DFM
DFM and Fabrication Cost/Time Constraints
Teardrops for DFM

If you need to increase the width to any primitive, but need to maintain manufacturability, you can use teardrops. We’ll show you how to create a teardrop and specify the shape and size.

Embedded thumbnail for Creating a New Design Variant
How to work with Variants
Creating a New Design Variant

You can create variants and allow various changes to your design while maintaining all other versions in Altium Designer. We’ll show you how to create new variants using the variant manager and what you need to know to configure your variants correctly.

Embedded thumbnail for Query Language: Basic Concept Part I
Query Language
Query Language: Basic Concept Part I

In this video you will learn types of query language commands and what they can be used for.

Embedded thumbnail for Configuring the Vias Annular Ring
DFM and Fabrication Cost/Time Constraints
Configuring the Vias Annular Ring

The minimum dimension from the wall of the aperture to the edge of the pad is called an annular ring, and we can configure it with Altium Designer. We’ll show you how to get started and manage the annular ring in your design rules.

Embedded thumbnail for Design RF PCB: RF Materials for PCB
RF PCB Design
Design RF PCB: RF Materials for PCB

Unlike an ideal environment, PCB materials introduce losses into the propagated signal. In this, we tried to figure out what materials to choose for RF printed circuit boards.

Embedded thumbnail for Design for Manufacturing (DFM) Overview
DFM and Fabrication Cost/Time Constraints
Design for Manufacturing (DFM) Overview

During your design process, there are simple steps you can take to focus on Design for Manufacturing, or DFM. Altium Designer has a unique set of tools you can use to make the DFM process efficient ensuring manufacturability. In this overview video, we’ll talk about some of topics covered in upcoming videos about the DFM tools Altium Designer offers you.

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Working with MCAD CoDesigner extension
Fixing Broken Component Models

If you have a broken component model that won’t transfer properly from ECAD to MCAD, Altium Designer will help. We’ll show you how to use the Make PCB Library tool, the Extract 3D models tool, and your MCAD tool to correct broken components and make them usable.

Embedded thumbnail for Query Language: What is It For?
Query Language
Query Language: What is It For?

A PCB project contains many different objects. How to manage them? How to find the right ones quickly and efficiently? This video starts the series about query language. Learn the language commands and how to use them and expand your possibilities!

Embedded thumbnail for Maintaining MCAD Constraints During Exchange
Working with MCAD CoDesigner extension
Maintaining MCAD Constraints During Exchange

The Altium Designer MCAD Co-designer panel and extension give you a few tools to create a model that is unified during the ECAD MCAD Exchange. We'll show you how to make sure your models are transferred correctly across the ECAD MCAD exchange.

Embedded thumbnail for Design RF PCB: Plane Connect -direct
RF PCB Design
Design RF PCB: Plane Connect -direct

It is bad practice to use thermal reliefs to connect pads in RF path circuits. We'll show you how to quickly and easily change pad-to-polygon connection style to direct connection.

Embedded thumbnail for Precise Selection with PCB Filter
How to work with Selection
Precise Selection with PCB Filter

Narrowing down a precise and accurate selection of objects can be difficult on a crowded board. Learn about the PCB Filter panel, how to use it to create queries to select objects on the PCB, and how to create design rules from these queries.

Embedded thumbnail for Rigid-Flex Board Shape Design in MCAD
Working with MCAD CoDesigner extension
Rigid-Flex Board Shape Design in MCAD

The MCAD Codesigner allows you to design or edit your board shape in the MCAD environment and have it pushed back to Altium Designer. We’ll show you how to configure the board shape, rigid and flex regions, and mounting holes.

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