Hackaday

Logic Noise: 4046 Voltage-Controlled Oscillator, Part One

In this session of Logic Noise, we’ll be playing around with the voltage-controlled oscillator from a 4046 phase-locked loop chip, and using it to make “musical” pitches. It’s a lot of bang for the ...
Nature

Voltage-Controlled Oscillator-Based Analog-to-Digital Converters

Voltage-controlled oscillator-based analog-to-digital converters (VCO-based ADCs) represent an emerging class of digitisation circuits that harness the frequency-modulating properties of VCOs to ...
EDN

Ku-band RF PLLs have integrated VCO for low phase-noise local oscillator circuits

The TFF100xHN family of Ku-band RF PLLs has integrated VCO intended for low phase-noise local oscillator (LO) circuits in Ku-band VSAT transmitters and transceivers. Manufactured in a high-performance ...
Electronic Design

Simple Quadrature VCO Covers Two Frequency Decades With Ultra-Low Distortion

Fig 1. Two analog multipliers form a VCO with quadrature outputs, while a third multiplier provides AGC to stabilize output voltages without adding distortion. Fig 2. The oscilloscope trace of the VCO ...