Latest Optical Networking Technical Articles

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Digital Design with Pass-Transistor Logic

This article presents efficient, pass-transistor-based implementations of important digital functionality.

December 26, 2018 by Robert Keim

Introduction to Pass-Transistor Logic

This article explores an alternative, and in some cases advantageous, approach to MOSFET-based implementation of digital logic functions.

December 17, 2018 by Robert Keim

Clock Signals in FPGA Design: Data Path Maximal Clock Rates and the Xilinx PERIOD Timing Constraint

This article will discuss the Xilinx Period timing constraint that allows us to describe the characteristics of the clock signal that will be used with an FPGA design.

December 05, 2018 by Steve Arar

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

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

How to Use a Robot to Record and Transfer Audio Signals

This article provides detailed information on sampling audio signals and transferring the data to a PC for analysis.

September 15, 2017 by Robert Keim

Radio Meets Fiber Optics: RF Over Fiber

Radio Over Fiber (ROF) combines RF and optics, providing optical links to replace strategic portions of cellular, satellite, and copper based systems.

June 14, 2017 by Marie Christiano

Communication Processors March on But 5G Demands Much More

Development is well underway on Gigabit LTE cellular communications systems that promise an order of magnitude increase in data transfer rates and 5G is close behind. Small cell access nodes will form an essential part of both systems but new communications processors are needed to make these a reality.

June 08, 2017 by Emmanuel Gresset, CEVA

Robust, High-Speed Serial Communication: A New RS-422/485 Transceiver from Maxim

The MAX14775E offers high-performance capabilities that make it especially suitable for data transfer in harsh environments.

March 09, 2017 by Robert Keim

Build Your Own LED Photography Ring Light

LED ring flashes and lights can be a valuable tool for photographers. In this tutorial, we are going to build our own ring light out of LEDs!

January 26, 2017 by Alex Udanis

Quark D2000 I2C Interfacing: Add a Light Sensor and an LCD

Get acquainted with using I2C with the Quark D2000 development board by interfacing an ambient light sensor and an LCD.

January 12, 2017 by Raymond Genovese

The Packet Concept: High-Level Synchronization for Data Links

Learn about (for lack of a better term) packetization, a technique that facilitates robust data transfer in optical, RF, and long-distance-digital communication systems.

December 30, 2016 by Robert Keim

Manchester Encoding: What Is It, and Why Use It?

Learn about Manchester encoding, a simple and effective way to improve high-speed or wireless digital communication.

December 23, 2016 by Robert Keim

The Cyclic Redundancy Check (CRC): Finding—and Even Correcting—Errors in Digital Data

This technical brief explains what a CRC is and how you can use it to make your digital communication more robust.

December 22, 2016 by Robert Keim

Light Bar “Relative Comfort” Thermometer with NodeMCU

Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266 modules running NodeMCU using MQTT.

September 28, 2015 by Patrick Lloyd

How to Use the Digital I/O on a BeagleBone

Beaglebone Black is the most recent incarnation of the Beaglebone open source hardware platform. For less than $50, the board includes Ethernet, graphics processing, 4Gb of nonvolatile storage, and ports supporting USB, HDMI, and Beaglebone's custom I/O add-ons, called "capes". Here's how to run some simple commands to toggle digital I/O on the board!

August 17, 2015 by Nash Reilly

Ambient Light Monitor: Zero-Cross Detection

Part 4 in the “How to Make an Ambient Light Monitor” series

August 16, 2015 by Robert Keim