All About Circuits

Latest Digital Filters Articles and Videos

Categories

What Is the Fourier Transform?

What Is the Fourier Transform?

This article gives you essential information on a mathematical technique that plays an absolutely fundamental role in system design and signal processing.


What Is a Linear System?

What Is a Linear System?

This article explains the essential aspects of linear systems, which play a fundamental role in electrical engineering and signal processing.


Understanding Types of Lock-In Amplifiers and Related Noise Sources

Understanding Types of Lock-In Amplifiers and Related Noise Sources

This article is a general guideline on the main aspects of commercially-available amplifiers.


Wi-Fi Is a Power Guzzler. New Multi-Protocol Modules May Change the Game of Battery-Based IoT

Wi-Fi Is a Power Guzzler. New Multi-Protocol Modules May Change the Game of Battery-Based IoT

Wi-Fi's high power consumption represents a serious challenge to battery-powered IoT products. But this may no longer be a problem with the digitally-dominant advanced radio architecture of two new modules from Innophase.


News Jun 09, 2020 by Dr. Steve Arar
How Is the Laplace Transform Used in Circuit Design?

How Is the Laplace Transform Used in Circuit Design?

In this article, we briefly review how the Laplace transform can help us solve circuits involving damped and steady-state sinusoidal signals.


What Is Dynamic Range?

What Is Dynamic Range?

The concept of dynamic range appears frequently in engineering discussions. But what exactly does this term mean? And how does it apply to electronic circuits and systems?


JESD204B vs. JESD204C: What Designers Need to Know

JESD204B vs. JESD204C: What Designers Need to Know

Learn how the updated serial standard, JESD204C, addresses lane speed as well as inefficient 8B/10B coding and the impact those changes have when working on high-speed data converter board designs.


Determining Dynamic Range of CCD Image Sensors

Determining Dynamic Range of CCD Image Sensors

This article explains how CCD construction, operating parameters, and external signal-processing circuitry contribute to the maximum variation in luminance that CCD imaging hardware can capture.


Anti-Aliasing Filters: Applying Sampling Theory to ADC Design

Anti-Aliasing Filters: Applying Sampling Theory to ADC Design

This article examines an important aspect of the Nyquist–Shannon sampling theorem and explains its connection to the need for anti-aliasing filters in analog-to-digital conversion.


The Pitfalls of Contact Tracing are Addressed in New Wireless Ranging Tech and a BLE Chip

The Pitfalls of Contact Tracing are Addressed in New Wireless Ranging Tech and a BLE Chip

Radio Signal Strength Indicators, a common method of contact tracing, often yield inaccurate positioning results. Dialog Semiconductor says they have a better solution.


News May 19, 2020 by Robin Mitchell
The Nyquist–Shannon Sampling Theorem: Exceeding the Nyquist Rate

The Nyquist–Shannon Sampling Theorem: Exceeding the Nyquist Rate

This article continues our series on sampling theory by explaining the importance of oversampling in real-life mixed-signal systems.


The Nyquist–Shannon Theorem in the Frequency Domain

The Nyquist–Shannon Theorem in the Frequency Domain

This article continues our discussion of sampling theory and introduces the concept of aliasing.


The Nyquist–Shannon Theorem: Understanding Sampled Systems

The Nyquist–Shannon Theorem: Understanding Sampled Systems

The Nyquist sampling theorem, or more accurately the Nyquist-Shannon theorem, is a fundamental theoretical principle that governs the design of mixed-signal electronic systems.


Understanding Digital Oscilloscope Sample Rate and Analog Bandwidth Specs

Understanding Digital Oscilloscope Sample Rate and Analog Bandwidth Specs

In this article, we’ll examine two important specifications of a digital oscilloscope: analog bandwidth and sampling rate.


Analog Discovery 2 vs. Other PC-Based Oscilloscopes. Is AD2 Worth the Hype?

Analog Discovery 2 vs. Other PC-Based Oscilloscopes. Is AD2 Worth the Hype?

Analog Discovery 2 is called the "one tool with many functions." But how does it hold up against analogous T&M devices in the industry?


News Mar 12, 2020 by Dr. Steve Arar
How Do You Design an LC Low-Pass Filter for a Class D Amp?

How Do You Design an LC Low-Pass Filter for a Class D Amp?

What's the role of low-pass filters in class D amplification? We'll use ST's new class D amp to discuss this question.


News Mar 09, 2020 by Robert Keim
Kumu Networks Reveals First Analog Finite Impulse Response Filter on a Chip

Kumu Networks Reveals First Analog Finite Impulse Response Filter on a Chip

The KU1500 is designed to allow radios to send and receive signals at the same time on the same or adjacent channels.


News Dec 31, 2019 by Gary Elinoff
Understanding Different Definitions of the Spurious Free Dynamic Range (SFDR) Specification

Understanding Different Definitions of the Spurious Free Dynamic Range (SFDR) Specification

In this article, we’ll look at the spurious free dynamic range (SFDR) which is a popular specification for quantifying the linearity of a circuit.


TI Rolls Out New ADC for Improved Voice Capture in Noisy, Far-field Environments

TI Rolls Out New ADC for Improved Voice Capture in Noisy, Far-field Environments

TI designed the new ADC to capture low-distortion audio recordings from far distances or in noisy environments.


News Nov 05, 2019 by Lisa Boneta.
Learn About SAR ADCs: Architecture, Applications, and Support Circuitry

Learn About SAR ADCs: Architecture, Applications, and Support Circuitry

In this article, we’ll first review the basic architecture of a SAR ADC and then take a look at one of its common applications.