Articles by Joseph Andrews, RFVCO

This is the second of a two part series that discusses certain fundamentals in Voltage-Controlled Oscillator design. A voltage controlled oscillator or VCO is an oscillator that can be frequency controlled by an external voltage. The external voltage is called a tuning voltage and it is typically connected to...

A voltage controlled oscillator or VCO is an oscillator that can be frequency controlled by an external voltage. The external voltage is called a tuning voltage and it is typically connected to a voltage variable capacitor (varactor) within the resonant oscillator circuit. As the voltage changes, the capacitance of...

Introduction A voltage controlled oscillator or VCO is an oscillator that can be frequency controlled by an external voltage. The external voltage is called a tuning voltage and it is typically connected to a voltage variable capacitor (varactor) within the resonant oscillator circuit. As the voltage changes, the capacitance...