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What Is the Difference between Conducted and Radiated EMI?

What Is the Difference between Conducted and Radiated EMI?

This technical brief explains two distinct types of electromagnetic interference.


PLL Frequency Multiplication: Transient Response and Frequency Synthesis

PLL Frequency Multiplication: Transient Response and Frequency Synthesis

Does the addition of a feedback divider affect PLL transient response? We’ll look at this question and other frequency-multiplication topics in this article.


The Gentleman Maker’s Auto-Apologizer: A Clever, Polite Device for the Everyday Brit

The Gentleman Maker’s Auto-Apologizer: A Clever, Polite Device for the Everyday Brit

One of the biggest fears many British people face is forgetting to say sorry. This project is designed to automatically apologize when the user bumps into an object.


Projects Mar 28, 2018 by Robin Mitchell
Understanding PLL Applications: Frequency Multiplication

Understanding PLL Applications: Frequency Multiplication

This article explains how a PLL can be used to produce a high-frequency clock from a low-frequency reference signal.


Designing and Simulating an Optimized Phase-Locked Loop

Designing and Simulating an Optimized Phase-Locked Loop

In this article we’ll explore PLL transient-response optimization using simulations and a design example.


How to Optimize the Transient Response of a Phase-Locked Loop

How to Optimize the Transient Response of a Phase-Locked Loop

In this article we’ll explore the mathematical relationships that will help you to design a PLL that quickly and smoothly locks onto the input frequency.


Understanding Phase-Locked Loop Transient Response

Understanding Phase-Locked Loop Transient Response

In this article we’ll use SPICE simulations to take a close look at how a phase-locked loop enters the locked state.


How to Simulate a Phase-Locked Loop

How to Simulate a Phase-Locked Loop

This article presents an LTspice circuit that can be used to explore the behavior of a phase-locked loop.


What Exactly Is a Phase-Locked Loop, Anyways?

What Exactly Is a Phase-Locked Loop, Anyways?

This article introduces a phase-based feedback system that plays an important role in many applications.


What Exactly Is a Quartz Crystal, Anyways? A Look at Quartz Crystal Oscillators

What Exactly Is a Quartz Crystal, Anyways? A Look at Quartz Crystal Oscillators

This article explains some theory behind an extremely common electronic component.


Design a Custom Microcontroller Programming and Testing Board

Design a Custom Microcontroller Programming and Testing Board

In this article we’ll discuss the design for a custom microcontroller programming/debug/extension PCB and we’ll look at an example project.


Projects Feb 25, 2018 by Robert Keim
How to Monitor Current with an Op-Amp, a BJT, and Three Resistors

How to Monitor Current with an Op-Amp, a BJT, and Three Resistors

This article, part of AAC’s Analog Circuit Collection, explains the functionality of a clever circuit that accurately measures supply current.


The Why and How of Pipelining in FPGAs

The Why and How of Pipelining in FPGAs

This article explains pipelining and its implications with respect to FPGAs, i.e., latency, throughput, change in operating frequency, and resource utilization.


When a Diode Simply Isn’t Good Enough: The Superdiode

When a Diode Simply Isn’t Good Enough: The Superdiode

This article, part of AAC’s Analog Circuit Collection, discusses an interesting circuit in which an op-amp and an ordinary diode work together to create a superdiode.


Capacitive Control Panel PCB Design Considerations for TI’s MSP430FR2633 Microcontroller

Capacitive Control Panel PCB Design Considerations for TI’s MSP430FR2633 Microcontroller

This article provides a closer look at the PCB design considerations and programming of a custom capacitive touch interface device.


Implementing Your Phase-Shift Oscillator: Frequency Response and Amplitude Stabilization

Implementing Your Phase-Shift Oscillator: Frequency Response and Amplitude Stabilization

This article, part of AAC’s Analog Circuit Collection, explores a handy circuit that can generate sustained sinusoidal oscillations.


Power over Ethernet (PoE) with Microchip’s EoE!

Power over Ethernet (PoE) with Microchip’s EoE!

Embrace the power of Power over Ethernet with Microchip's Ethernet of Everything!


Projects Jan 26, 2018 by Ryan Jones
How to Generate a Sine Wave: The Phase-Shift Oscillator

How to Generate a Sine Wave: The Phase-Shift Oscillator

This article, part of AAC’s Analog Circuit Collection, explains a fairly straightforward circuit that can be used as part of an analog oscillator.


Designing a Self-Biasing Class C Amplifier

Designing a Self-Biasing Class C Amplifier

This article, part of AAC’s Analog Circuit Collection, explores a self-biased class C stage that could be used in an RF power amplifier.


Building a Capacitive Touch Interface with the Texas Instruments MSP430FR2633

Building a Capacitive Touch Interface with the Texas Instruments MSP430FR2633

The MSP430FR2633 is a low-power microcontroller with multiple GPIOs and capacitive touch pins. This project creates a circuit that supports a custom capacitive touch panel with LED and haptic feedback.


Projects Jan 12, 2018 by Mark Hughes