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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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Altium 365 SOC 2 Type 1 Certified
Blog
Announcing SOC 2 Type 1 Certification for Altium 365

We are pleased to announce that Altium 365 is officially SOC 2 Type 1 certified. System and Organization Controls (SOC) 2 is a widely recognized attestation of security compliance defined by the AICPA and is considered the standard for ensuring data security and operational maturity. A SOC 2 certification provides valuable information for companies to assess the quality of the security provided by a service such as Altium 365.

Three ways to manage your BOM costs
Blog
Improving Supply Chain Success with BOM Management

It’s no secret that component shortages have become more frequent this year. Companies will continue to grapple with supply chain challenges into 2022 and beyond. The impact of manufacturing delays can be substantial if a part is not available. Delays occur and sales plans get put on hold. It can also be very expensive and risky to replace parts from multiple sources. Fortunately, many shortages can be avoided by introducing proactive supply chain practices.

Reliability and failure analysis
Blog
Overview of PCB/PCBA Reliability and Failure Analysis

Reliability testing and failure analysis of a PCB/PCBA go hand-in-hand; when designs are stressed to the limit, their failure modes need to be determined through thorough inspection and analysis. To get started on this topic, it’s important to understand the qualification aspects that will govern your bare board design and the PCBA. We’ll look at the various dimensions of PCB/PCBA reliability, as well as some of the standard failure analysis techniques used to identify potential design change requirements.

Plane and Cavity Resonances
Blog
When Do PCB Power Plane Resonances Occur?

By now, designers should be aware of some important behavior involved in power delivery to components in a PCB, particularly for digital components. All digital components produce and manipulate wideband signals, where the frequency content theoretically extends up to infinite frequency. As such, some radiation may propagate through your PCB, leading to resonant behavior that is not observed on the power rail.

Selecting a plating material
Blog
How to Choose PCB Plating for Your Finished Board

Once your board passes through the standard PCB fabrication process, the bare copper in your PCB will be ready for the application of a surface finish. PCB plating is applied to protect any copper in your PCB that would be exposed through the solder mask, whether it’s a pad, via, or other conductive element. In this article, I’ll run over the different PCB plating material options and their advantages in your PCB. 

What is the PCB Supply Chain?
Blog
What is the PCB Supply Chain?

The PCB supply chain encompasses multiple components, raw materials, and the PCB itself. PCBs and PCB assemblies are often the most technically complex components that are purchased for electronic assemblies and products. The complexity of modern PCBs leads to several challenges for a supply chain management team that may be significantly different when compared with other commodities the team manages. In this brief guide, we'll look in-depth at the PCB supply chain, and specifically what falls within the purview of a procurement and supply chain management team.

What is mode conversion
Blog
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.

Pad and via sizing
Blog
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.

Differential Microstrip Impedance
Blog
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.

PCB DFM Check
Blog
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.

Spreading Inductance
Blog
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.

PCB Design Basics for New Designers
Blog
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.

Selecting Materials for High Voltage PCB Design and Layout
Blog
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.

Via tenting in PCB Layout
Blog
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?

Capacitive load termination
Blog
How to Impedance Match and Terminate Capacitive Loads

The idea of a purely capacitive load is something of a fallacy. Yes, capacitors exist, but all capacitors are non-ideal, and it is this deviation from a theoretical capacitance that determines how to impedance match a load that exhibits capacitive behavior. Let’s take a look at this important aspect of interconnect design and see what it really means to terminate a capacitive load.

Using Altium 365 Over Your Vanilla Version Control System
Blog
Using Altium 365 Over Your Vanilla Version Control System

There are all sorts of version control systems 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.

Tag
Embedded thumbnail for Using the ActiveBOM
How-To's
Using the ActiveBOM

Using the ActiveBOM: The Bill of Materials (BOM) contains a list of all the components with their designators, part numbers, values, and other parameters. An ActiveBOM manages the mapping from the design component (part) to the part that is purchased. This video describes how to use the ActiveBOM document to create an up-to-date list of components needed for your project.

Embedded thumbnail for Using Back Drills in your Stackup
How to work with Layer Stack Manager
Using Back Drills in your Stackup

In this video, we will learn about Back Drilling technology, how to set up back drilling using the layer stack manager, and how to set up the Stub Length sizes for back drilling by specifying applicable nets using the Design Rules Editor.

Embedded thumbnail for How to Customize The Properties Panel
How-To's
How to Customize The Properties Panel

How to Customize The Properties Panel: This video will go over how to customize the look and feel of the properties panel in Altium Designer. By being able to personalize your workspace you can greatly improve your efficiency

Embedded thumbnail for How to Create and Use Impedance Profiles
How to work with Layer Stack Manager
How to Create and Use Impedance Profiles

Using the Altium Designer Layer Stack Manager, we will show how to create impedance profiles for transmission lines and how to apply them to the circuit board using the PCB Rules and Constraints Editor.

Embedded thumbnail for Creating a PCB Footprint Courtyard
How to create a PCB Footprint
Creating a PCB Footprint Courtyard

The courtyard is an essential piece when you want to create a PCB Footprint in Altium Designer. We’ll talk about what a courtyard is, how to create a courtyard, and how to format a courtyard correctly for your PCB footprint.

Embedded thumbnail for How to Edit Existing Tracks in Altium Designer
How-To's
How to Edit Existing Tracks in Altium Designer

This new design rule flags a violation when the creepage distance across non-conductive surface and edge regions of the board, between the targeted signals, is equal to or less than the specified Creepage distance.

Embedded thumbnail for Creating a PCB Footprint Silkscreen Overlay
How to create a PCB Footprint
Creating a PCB Footprint Silkscreen Overlay

When creating a PCB footprint in Altium Designer creating a silkscreen overlay is an important requirement. We’ll go over the standards for creating a silkscreen overlay for a footprint and the steps to creating one, such as constructing lines and measuring distance of objects and primitives.

Tuning
What's New in 22.7
Ability to Change Tuning Object Layer Properties

Design of high-speed PCBs becomes easier with this latest release. Now, when you need to quickly move tuning elements to a different layer, you can do so from the Properties panel with a single click.

Tuning
What's New in 22.7
更改调节对象层属性功能

本次发布后,即可更加轻松地进行高速PCB设计。现在,当您需要将调节元件快速移动到其他层时,仅需单击一次即可从Properties面板中执行此操作。

Simulation models
What's New in 22.7
Auto-assign Simulation Models for Components without Models

This latest version of Altium Designer makes schematic simulation even easier. System intelligence automatically recognizes SPICE models and assigns them to components from available sources.

Simulation models
What's New in 22.7
自动分配不含模型的元件仿真模型

最新版Altium Designer将确保您能够更加轻松地进行原理图仿真。系统智能自动识别 SPICE 模型并将其分配给可用来源的元件。

Paste
What's New in 22.7
Control of Paste Mask Output for Variants

Output data needs to be as accurate as possible. For multi-variant designs you can now ensure that the paste mask is only displayed where it is really needed.

Paste
What's New in 22.7
变量助焊层输出控件

输出数据需要尽量准确。对于多变量设计,您现在可以确保将助焊层仅显示在真正需要的位置。

Embedded thumbnail for Adding Designators for Assembly Drawings
How-To's
Adding Designators for Assembly Drawings

Designators for assembly drawings are added on the assembly layer. This video shows how to add the designators.

Embedded thumbnail for Stackup Material Library
How to work with Layer Stack Manager
Stackup Material Library

In this video we will learn more about the Altium designers Layer Stack Mangers built-in materials library, and how to add new material and use it in our board stack. We will also look at how we can save the user materials to an xml format.

Embedded thumbnail for Placing Footprint Pads
How to create a PCB Footprint
Placing Footprint Pads

Every footprints needs proper pad placement to ensure trace connectivity. Placing pads is the first step towards footprint creation.

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