Latest Digital Filters Technical Articles

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.

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.

Tired of using your PC or mobile phone as a signal generator? It’s time to upgrade to a standalone one by making it yourself.

Tired of using your PC or mobile phone as a signal generator? It’s time to upgrade to a standalone one by making it yourself.

In this article, we’ll evaluate different firmware strategies in our pursuit of maximum-frequency analog signal generation.

In this article, we’ll evaluate different firmware strategies in our pursuit of maximum-frequency analog signal generation.

This article discusses an efficient implementation of the interpolation filters called the polyphase implementation.

This article discusses an efficient implementation of the interpolation filters called the polyphase implementation.

This article aims to explain the logarithmic laws of companding and the methods of implementation along with the effects…

This article aims to explain the logarithmic laws of companding and the methods of implementation along with the effects these methods bring into the PCM-based telephone systems.

The overlap-add method allows us to use the DFT-based method when calculating the convolution of very long sequences.

The overlap-add method allows us to use the DFT-based method when calculating the convolution of very long sequences.

The DFT provides an efficient way to calculate the time-domain convolution of two signals.

The DFT provides an efficient way to calculate the time-domain convolution of two signals.

This article will verify that a suitable structure can reduce the sensitivity of a digital filter response to the…

This article will verify that a suitable structure can reduce the sensitivity of a digital filter response to the coefficient quantization.

This article will review some basic structures to implement Finite Impulse Response (FIR) filters.

This article will review some basic structures to implement Finite Impulse Response (FIR) filters.

This article will review the basics of the frequency sampling method for designing FIR filters.

This article will review the basics of the frequency sampling method for designing FIR filters.

In this article, we’ll look at a fairly straightforward circuit that enables a robot or other device to detect sound.

In this article, we’ll look at a fairly straightforward circuit that enables a robot or other device to detect sound.

This project uses a C8051 microcontroller development kit, an accelerometer evaluation board, and Simplicity Studio…

This project uses a C8051 microcontroller development kit, an accelerometer evaluation board, and Simplicity Studio IDE—all from Silicon Labs—to rather quickly and easily build a motion-detecting alarm system.

This article will review the use of window functions to alleviate the DFT leakage.

This article will review the use of window functions to alleviate the DFT leakage.

This article presents an overview of various applications which exploit convolution, an advanced signal operation.

This article presents an overview of various applications which exploit convolution, an advanced signal operation.

Learn how to implement a moving average filter and optimize it with CIC architecture.

Learn how to implement a moving average filter and optimize it with CIC architecture.