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Basics of Digital Down-Conversion in DSP

This article discusses digital down-conversion which is a digital-signal-processing technique widely used in digital radio receivers.

June 04, 2018 by Dr. Steve Arar

Resolving the Signal Part 5: Understanding Effective Noise Bandwidth in Precision Delta-Sigma ADCs

Part 5 of this 12-part series continues to explore effective noise bandwidth as it relates to delta-sigma ADCs and system-level design by stepping through a simple example using a two-stage filter to understand how to calculate the ENBW and how system changes affect the ENBW.

May 22, 2018 by Bryan Lizon, Texas Instruments

Resolving the Signal Part 4: Understanding Effective Noise Bandwidth in Precision Delta-Sigma ADCs

Part 4 of this “Resolving the Signal” article series covers noise in delta-sigma ADCs focuses on understanding basic effective noise bandwidth (ENBW) topics.

April 11, 2018 by Bryan Lizon, Texas Instruments

Comparing Optical Sensors: Understanding D-Star

This technical brief discusses a parameter that conveys the sensitivity of an optical detector.

April 05, 2018 by Robert Keim

PLL Frequency Multiplication: Transient Response and Frequency Synthesis

Does the addition of a feedback divider affect PLL transient response? We’ll look at this question and other frequency-multiplication topics in this article.

March 29, 2018 by Robert Keim

Understanding PLL Applications: Frequency Multiplication

This article explains how a PLL can be used to produce a high-frequency clock from a low-frequency reference signal.

March 26, 2018 by Robert Keim

Designing and Simulating an Optimized Phase-Locked Loop

In this article we’ll explore PLL transient-response optimization using simulations and a design example.

March 21, 2018 by Robert Keim

How to Optimize the Transient Response of a Phase-Locked Loop

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.

March 19, 2018 by Robert Keim

Understanding Phase-Locked Loop Transient Response

In this article we’ll use SPICE simulations to take a close look at how a phase-locked loop enters the locked state.

March 14, 2018 by Robert Keim

How to Simulate a Phase-Locked Loop

This article presents an LTspice circuit that can be used to explore the behavior of a phase-locked loop.

March 12, 2018 by Robert Keim

What Exactly Is a Phase-Locked Loop, Anyways?

This article introduces a phase-based feedback system that plays an important role in many applications.

March 09, 2018 by Robert Keim

How to Decode Manchester-Encoded Data Using Hardware

This article looks at some circuits that can help you extract the original data from a Manchester-encoded signal.

March 01, 2018 by Robert Keim

How to Generate Manchester-Encoded Data in Hardware and Firmware

This article discusses implementation details for a simple yet effective technique that can improve your digital communication.

February 26, 2018 by Robert Keim

Extending Bandwidth to Crush X-Band Frequencies Using a Track-and-Hold Sampling Amplifier and RF ADC

In this article, I show that designers can achieve 10 GHz bandwidth when using a THA in front of one of Analog Dialogue's RF market converters.

January 30, 2018 by Rob Reeder, Analog Devices

Intelligence at the Edge Part 3: Edge Node Communication

Connected industrial machines can sense a wide array of information used to make key decisions within the Industrial Internet of Things (IIoT). A sensor within an edge node can be spatially far removed from any data aggregation point. It must connect through a gateway that links edge data with a network.

January 09, 2018 by Ian Beavers, Analog Devices

GaN Breaks Barriers—RF Power Amplifiers Go Wide and High

This article describes the state of the semiconductor technology that is enabling new developments with shorter gate length GaAs and GaN transistors, circuit design considerations to achieve optimum performance, and examples of both GaAs and GaN wideband power amplifiers (PAs) that demonstrate today’s technology.

November 14, 2017 by Keith Benson, Analog Devices

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.

October 30, 2017 by Sneha H.L.

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.

October 24, 2017 by Patrick Pratt, Analog Devices

Wide-Area Wireless Platform Enables a New Wave of IoT systems

The next step of wide-area wireless connection is to bring the power of wireless to machine type communications (MTC). This will drive a revolution in services that will span sectors as diverse as manufacturing, city management, transportation, and energy.

October 17, 2017 by Emmanuel Gresset, CEVA

An Introduction to Companding: Compressing Speech for Transmission Across Telephone Systems

This article introduces the analog-to-digital conversion required to compress speech for transmission across telephone systems.

September 14, 2017 by Sneha H.L.