All About Circuits

Latest Telecom Articles and Videos

Categories

The Legacy of Switzerland’s First Female Engineering Professor

The Legacy of Switzerland’s First Female Engineering Professor

To celebrate Women's History Month, we spotlight Erna Hamburger, an engineer who graduated top of her class at EPFL in 1933 and spent decades breaking institutional barriers in electrical engineering and measurement science.


News Mar 19, 2026 by Luke James
R&S and Realtek Validate First Test Setup for BLE High Data Throughput

R&S and Realtek Validate First Test Setup for BLE High Data Throughput

Rohde & Schwarz and Realtek have demonstrated a test solution for the upcoming Bluetooth LE High Data Throughput (HDT) feature that can enable verification of data rates up to 7.5 Mbps.


News Mar 18, 2026 by Joshua Tidwell
NXP Launches Tiny Applications Processor Blending AI NPU and Tri-Radio

NXP Launches Tiny Applications Processor Blending AI NPU and Tri-Radio

NXP claims that this device represents the first time an applications processor has combined a dedicated AI NPU with tri-radio wireless connectivity.


News Mar 17, 2026 by Jake Hertz
AI-RAN: The Technology Pushing Mobile Networks Toward AI-Native 6G

AI-RAN: The Technology Pushing Mobile Networks Toward AI-Native 6G

AI-RAN integrates AI workloads directly into cellular network infrastructure. Industry leaders, including Nvidia, Nokia, Ericsson, Intel, Keysight, and Samsung, are now collaborating to move the concept from research toward real-world deployment.


News Mar 16, 2026 by Austin Futrell
Understanding the Exclusive-OR Phase Detector

Understanding the Exclusive-OR Phase Detector

This article explores the operation of the simplest digital phase detector: the exclusive-OR (XOR) gate.


Diode-Based Phase Detectors: Key Principles and Example Circuits

Diode-Based Phase Detectors: Key Principles and Example Circuits

We examine phase detectors that leverage either the nonlinear characteristics or switching capabilities of diodes to perform multiplication.


Omron Electronics P6K Relay Sockets & G6K Low Signal Relays | Digital Datasheet

Omron Electronics P6K Relay Sockets & G6K Low Signal Relays | Digital Datasheet

Omron Electronics P6K Relay Sockets & G6K Low Signal Relays, enabling easy relay replacement to reduce downtime, labor, and overall maintenance costs. Watch and learn all about their features, specs, applications, and more!


 Advancing RF Performance with TE Connectivity’s NanoRF Series Connectors | Tech Guide

Advancing RF Performance with TE Connectivity’s NanoRF Series Connectors | Tech Guide

In this Tech Guide, explore TE Connectivity’s NanoRF Series Connectors — delivering high-frequency RF performance with compact RF/optical integration, precise 50-ohm impedance, up to 85 GHz support, and floating alignment for durability. Watch now to get started!


Google Moonshot Company Taara Debuts ‘Radical’ Silicon Photonics Platform

Google Moonshot Company Taara Debuts ‘Radical’ Silicon Photonics Platform

Taara Photonics integrates 1,000+ light emitters in a finger-sized module, enabling electronic beam steering without mechanical parts.


News Mar 02, 2026 by Luke James
Using Gilbert Multipliers as Phase Detectors in PLLs

Using Gilbert Multipliers as Phase Detectors in PLLs

This article explores the operation of the Gilbert-cell phase detector for both small and large signals.


Introduction to the Gilbert Multiplier

Introduction to the Gilbert Multiplier

This article explores the Gilbert cell, a widely used analog multiplier circuit.


Mini-Circuits ZX60 Low Noise Amplifiers | New Product Brief

Mini-Circuits ZX60 Low Noise Amplifiers | New Product Brief

Mini-Circuits ZX60 Low Noise Amplifiers (LNAs) are engineered to amplify weak RF signals with high gain and a low noise figure, ensuring exceptional signal integrity across a wide frequency range. Watch and learn all about their features, specs, applications, and more!


Second-Order Type-2 PLLs: Bode Diagrams, Bandwidth, and Overshoot

Second-Order Type-2 PLLs: Bode Diagrams, Bandwidth, and Overshoot

Learn how to select the zero frequency, damping factor, and loop bandwidth for one of the most popular PLL configurations.


Introduction to Second-Order Type-2 PLLs

Introduction to Second-Order Type-2 PLLs

This article explains how Type-2 PLLs with an integrator loop filter outperform Type-1 systems. To do so, we'll examine the PLL behavior for frequency step and frequency ramp inputs.


Understanding the Time-Domain Response of PLLs With Lag-Lead Filters

Understanding the Time-Domain Response of PLLs With Lag-Lead Filters

In this article, we examine how adding a zero to the PLL loop filter affects the transient behavior and steady-state errors.


Exploring the Bode Plots of PLLs With a Lag-Lead Loop Filter

Exploring the Bode Plots of PLLs With a Lag-Lead Loop Filter

In this article, we derive design equations for a second-order PLL with a lag-lead filter by examining its Bode plots.


Introducing the Lag-Lead Filter

Introducing the Lag-Lead Filter

Learn how using a pole-zero loop filter improves PLL performance and design flexibility over the simpler lag filter.


Analyzing the Lag Filter’s Effect on PLL Performance

Analyzing the Lag Filter’s Effect on PLL Performance

In this article, we evaluate the designs of two simple frequency synthesizers to learn how a second-order PLL with a lag filter can provide a faster rise time than a first-order PLL.


Knowledge and Nostalgia: 2025’s Top Educational Articles

Knowledge and Nostalgia: 2025’s Top Educational Articles

Ring in the new year with this roundup of All About Circuits' most popular educational content, both technical and historical.


News Dec 31, 2025 by Abby Garfinkle
Roger Harrington: The Man With the Key to Unlock Maxwell’s Equations

Roger Harrington: The Man With the Key to Unlock Maxwell’s Equations

Today, we celebrate Roger F. Harrington as he turns 100 years old. His method of moments became the key for engineers in the modern world to put Maxwell's equations into action.


News Dec 24, 2025 by Lianne Frith