Latest Spectral Analysis Articles and Videos

This article gives you essential information on a mathematical technique that plays an absolutely fundamental role in…

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

This article examines an important aspect of the Nyquist–Shannon sampling theorem and explains its connection to the…

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.

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

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

Laptop or desktop PC designers know the woes of USB signal loss down a 12-inch PCB trace. The good news is there's a…

Laptop or desktop PC designers know the woes of USB signal loss down a 12-inch PCB trace. The good news is there's a device purpose-built to strengthen signals the whole way across.

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.

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.

In this article, we will see how we can determine the SFDR for an ADC used in a radio receiver. Also, we’ll examine the…

In this article, we will see how we can determine the SFDR for an ADC used in a radio receiver. Also, we’ll examine the ADC SNR requirement for this application.

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

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.

In this article, we’ll first examine an important feature of common noise sources: the relationship between the noise…

In this article, we’ll first examine an important feature of common noise sources: the relationship between the noise root mean square (RMS) and peak-to-peak value.

In this article, we’ll look at the relationship between the rise/fall time of a digital signal and its bandwidth.

In this article, we’ll look at the relationship between the rise/fall time of a digital signal and its bandwidth.

Working with a low noise voltage reference? Learn more about noise specifications and relevant voltage reference ICs.

Working with a low noise voltage reference? Learn more about noise specifications and relevant voltage reference ICs.

Learn the methods and applications of modeling the quantization error of an ADC using a noise source.

Learn the methods and applications of modeling the quantization error of an ADC using a noise source.

This article examines the quantization error of an analog-to-digital converter.

This article examines the quantization error of an analog-to-digital converter.

In part 12 of Resolving the Signal, we look at a power-supply noise design example to discuss which supplies are most…

In part 12 of Resolving the Signal, we look at a power-supply noise design example to discuss which supplies are most critical when trying to increase a system's PSR. From that example, we offer best practices to maintain low power-supply noise and debugging tips for a system's overall noise performance.

Part 10 of the Resolving the Signal series covers how clocks affect precision ADCs, touching on clock jitter, clock…

Part 10 of the Resolving the Signal series covers how clocks affect precision ADCs, touching on clock jitter, clock intermodulation and best PCB layout practices for clocking.

This article will explain some of the most important settings and design parameters for the Xilinx FFT IP core and…

This article will explain some of the most important settings and design parameters for the Xilinx FFT IP core and function as a basic walkthrough of the Fast Fourier Transform interface.

This article discusses a technique in which frequency-domain subtraction is used to selectively suppress the noise…

This article discusses a technique in which frequency-domain subtraction is used to selectively suppress the noise components in an audio signal.

Computing a discrete Fourier transform can help you to analyze the ways in which RF modulation affects the spectrum of a…

Computing a discrete Fourier transform can help you to analyze the ways in which RF modulation affects the spectrum of a carrier signal.

Scilab’s FFT functionality can help you understand the frequency-domain effects of RF modulation techniques.

Scilab’s FFT functionality can help you understand the frequency-domain effects of RF modulation techniques.

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.