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The Polyphase Implementation of Interpolation Filters in Digital Signal Processing

The Polyphase Implementation of Interpolation Filters in Digital Signal Processing

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


How to Generate a High-Precision Waveform Using a DAC and a Custom PCB

How to Generate a High-Precision Waveform Using a DAC and a Custom PCB

In this article, we’ll develop firmware that will serve as the basis for high-precision, high-speed signal generation.


Projects Dec 01, 2017 by Robert Keim
Fixed-Point Representation: The Q Format and Addition Examples

Fixed-Point Representation: The Q Format and Addition Examples

Fixed-point representation allows us to use fractional numbers on low-cost integer hardware.


Optimizing Smart Water Meters: A New Ultrasonic-Sensing Microcontroller from TI

Optimizing Smart Water Meters: A New Ultrasonic-Sensing Microcontroller from TI

In this article, we look at TI's new integrated ultrasonic-sensing MCU—the MSP430FR6047—that can deliver more accurate measurement for smart water meters.


News Nov 30, 2017 by Nick Davis
Power Supply Management of GaN MMIC Power Amplifiers for Pulsed Radar

Power Supply Management of GaN MMIC Power Amplifiers for Pulsed Radar

Systems that incorporate highly integrated and highly sophisticated, high power radio frequency (RF) GaN power amplifiers (PAs), such as pulsed radar applications, are a constant challenge for today’s digital control and management systems to keep up with these ever-increasing levels of sophistication.


PCB Layout for an Arbitrary Waveform Generator

PCB Layout for an Arbitrary Waveform Generator

In this article we’ll discuss the PCB layout for a custom-designed arbitrary waveform generator board.


Circular Buffer: A Critical Element of Digital Signal Processors

Circular Buffer: A Critical Element of Digital Signal Processors

This article discusses circular buffering, which allows us to significantly accelerate the data transfer in a real-time system.


High Definition, Low Delay, SDR-Based Video Transmission in UAV Applications

High Definition, Low Delay, SDR-Based Video Transmission in UAV Applications

Integrated RF agile transceivers are not only widely employed in software-defined radio (SDR) architectures in cellular telephone base stations, such as multiservice distributed access system (MDAS) and small cell, but also for wireless HD video transmission for industrial, commercial, and military applications, such as unmanned aerial vehicles (UAVs).


Implementing an Electronic Leveling Tool

Implementing an Electronic Leveling Tool

While it can be challenging to design electronic versions of precision tools, in this Industry Article we design an electronic level that matches the features of a conventional tool.


Companding: Logarithmic Laws, Implementation, and Consequences

Companding: Logarithmic Laws, Implementation, and Consequences

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.


Learn about the Overlap-Add Method: Linear Filtering Based on the Discrete Fourier Transform

Learn about the Overlap-Add Method: Linear Filtering Based on the Discrete Fourier Transform

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


Ultrawideband DPD: The Rewards and Challenges of Implementation in Cable Distribution Systems

Ultrawideband DPD: The Rewards and Challenges of Implementation in Cable Distribution Systems

This article looks at new technologies regarding the existing cable network, in particular, power amplifier digital predistortion.


DAC Output Circuitry for an Arbitrary Waveform Generator

DAC Output Circuitry for an Arbitrary Waveform Generator

How do you convert DAC output currents into a normal voltage signal? Let’s take a look.


Linear Filtering Based on the Discrete Fourier Transform

Linear Filtering Based on the Discrete Fourier Transform

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


Dialog Semiconductor to Acquire Silego for $306 Million in Bid for the IoT

Dialog Semiconductor to Acquire Silego for $306 Million in Bid for the IoT

Dialog Semiconductor is set to acquire Silego for a reported $306 million. How will this affect their product lines?


News Oct 14, 2017 by Tim Youngblood
DAC Schematic Design for an Arbitrary Waveform Generator

DAC Schematic Design for an Arbitrary Waveform Generator

This article presents a custom digital-to-analog-conversion design built around a high-speed DAC from Analog Devices.


New Design Contest Challenges Designers to Create Configurable Mixed-Signal ICs

New Design Contest Challenges Designers to Create Configurable Mixed-Signal ICs

A new design competition has presented a series of challenges over roughly two months to use GreenPAK technology to make configurable mixed-signal ICs (CMICs).


The Effect of Coefficient Quantization on the Performance of a Digital Filter

The Effect of Coefficient Quantization on the Performance of a Digital Filter

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


Don’t Get Left Behind with Your Voice-Enabled Home Saying “I’m Sorry, I Didn’t Get That”

Don’t Get Left Behind with Your Voice-Enabled Home Saying “I’m Sorry, I Didn’t Get That”

There is a trend beginning for a whole new network of smart devices to listen and respond to requests for all rooms of your smart home so you don't have to hear "I'm sorry, I didn't get that" anymore.


Microcontroller Design for an Arbitrary Waveform Generator

Microcontroller Design for an Arbitrary Waveform Generator

In this article, we’ll look at general concepts and some design details for a circuit board that can output a wide variety of analog signals.