A voltage-controlled oscillator or VCO is an electronic oscillator whose oscillation frequency is controlled by a voltage input. The applied input voltage determines the instantaneous oscillation frequency. Consequently, modulating signals applied to control input may cause frequency modulation (FM) or phase modulation (PM). A VCO may also be part of a phase-locked loop. VCOs (Voltage Controlled Oscillators) are in stock at Tenco Electronics. Tenco offers inventory, pricing, & datasheets for VCOs (Voltage Controlled Oscillators). To know more, please view our large section of VCOs (Voltage Controlled Oscillators) below.