Latest Digital Filters Articles and Videos

This article presents Scilab code that allows you to generate I/Q, noise, and chirp signals from your PC’s headphone jack.

This article presents Scilab code that allows you to generate I/Q, noise, and chirp signals from your PC’s headphone jack.

In this article, we’ll use Scilab to generate numerical signals that can be converted into analog waveforms by a…

In this article, we’ll use Scilab to generate numerical signals that can be converted into analog waveforms by a computer’s audio hardware.

This article discusses the mathematical significance of I/Q signals and presents the final steps in the DSP algorithm for…

This article discusses the mathematical significance of I/Q signals and presents the final steps in the DSP algorithm for decoding frequency-shift-keying baseband signals.

An improved algorithm, in conjunction with quadrature modulation, can achieve FSK decoding that is not affected by phase…

An improved algorithm, in conjunction with quadrature modulation, can achieve FSK decoding that is not affected by phase misalignment.

In this article we’ll use Scilab to explore the effect of unpredictable phase variations in a demodulated…

In this article we’ll use Scilab to explore the effect of unpredictable phase variations in a demodulated frequency-shift-keying baseband signal.

This article will review the common FPGA resources that allow us to efficiently generate and distribute clock signals…

This article will review the common FPGA resources that allow us to efficiently generate and distribute clock signals throughout a system.

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.

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.

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.

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.

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.

Part 8 of the Resolving the Signal series dives further into how different noise sources impact precision delta-sigma…

Part 8 of the Resolving the Signal series dives further into how different noise sources impact precision delta-sigma ADCs by focusing on reference noise and ADC noise, and how gain affects reference noise.

The BMP388 is a digital MEMS barometer and thermometer in a 2mm x 2mm x 0.8mm package.

The BMP388 is a digital MEMS barometer and thermometer in a 2mm x 2mm x 0.8mm package.

This article will look at some of the most important features of the AD7768-1, a new ADC from Analog Devices that is…

This article will look at some of the most important features of the AD7768-1, a new ADC from Analog Devices that is intended for low-power data acquisition (DAQ) designs.

This article takes a look at the IIS3DHHC three-axis accelerometer from STMicroelectronics.

This article takes a look at the IIS3DHHC three-axis accelerometer from STMicroelectronics.

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 will look at some of the most important features of TLV320ADC3100 which is TI’s newly-released ADC for…

This article will look at some of the most important features of TLV320ADC3100 which is TI’s newly-released ADC for voice-activated systems.

This article will discuss phase truncation in direct digital synthesizers.

This article will discuss phase truncation in direct digital synthesizers.

This article will discuss the dynamic range specification of an ADC.

This article will discuss the dynamic range specification of an ADC.