Latest Filters Technical Articles

This article explores the surprisingly complicated details associated with a word that we frequently use but perhaps…

This article explores the surprisingly complicated details associated with a word that we frequently use but perhaps don’t fully understand.

Noise on switch mode power supplies (SMPSs) sometimes gets a bum rap.

Noise on switch mode power supplies (SMPSs) sometimes gets a bum rap.

This two-article series presents an overview of circuit symbols and also provides some information on the components themselves.

This two-article series presents an overview of circuit symbols and also provides some information on the components themselves.

Learn what ground bounce is and how you can avoid it with design decisions from PCB layout to programming.

Learn what ground bounce is and how you can avoid it with design decisions from PCB layout to programming.

This article explores charge-amplifier design details, including ESD protection and frequency response.

This article explores charge-amplifier design details, including ESD protection and frequency response.

This article is an introduction to the complex topic of DSP-based reduction of noise in audio signals.

This article is an introduction to the complex topic of DSP-based reduction of noise in audio signals.

In this article we’ll work with sinusoidal signals in the frequency domain using Scilab’s fast Fourier transform…

In this article we’ll work with sinusoidal signals in the frequency domain using Scilab’s fast Fourier transform (FFT) functionality.

This article discusses basic signal-processing tasks that can be performed using a free and open source alternative to MATLAB.

This article discusses basic signal-processing tasks that can be performed using a free and open source alternative to MATLAB.

Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.

Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.

This article provides some tips on how to fine-tune the characteristics of a low-pass filter.

This article provides some tips on how to fine-tune the characteristics of a low-pass filter.

This article discusses some details—efficiency, noise, etc.—that influence the choice of operational frequencies for…

This article discusses some details—efficiency, noise, etc.—that influence the choice of operational frequencies for switch-mode power supplies.

This article will review considerations for efficient FPGA implementation of symmetric FIR filters.

This article will review considerations for efficient FPGA implementation of symmetric FIR filters.

This technical brief discusses the Early effect and how it influences the amplification characteristics of a bipolar…

This technical brief discusses the Early effect and how it influences the amplification characteristics of a bipolar junction transistor.

In this article we’ll explore the mathematical relationships that will help you to design a PLL that quickly and…

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.

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

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

This article, part of AAC’s Analog Circuit Collection, presents a circuit that is a good choice when you need to remove…

This article, part of AAC’s Analog Circuit Collection, presents a circuit that is a good choice when you need to remove high-frequency noise from a digital signal.

This article, part of AAC’s Analog Circuit Collection, discusses a filter circuit that allows you to choose between a…

This article, part of AAC’s Analog Circuit Collection, discusses a filter circuit that allows you to choose between a low-pass, a high-pass, and a band-pass response.

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

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

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

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