What is the difference between a VCXO and a VCO?

A VCO or Voltage Controlled Oscillator is an electronic oscillator whose oscillating/output frequency can be controlled by a DC control voltage. The oscillating/output frequency of the VCO can be modified by changing the DC control voltage applied to it. This DC voltage is called the control voltage. The oscillation frequency of a VCO is generated using an electronic circuit.

A VCXO is a Voltage Controlled Crystal Oscillator i.e it consists of a crystal oscillator with a varactor diode and supporting circuitry. The oscillating/output frequency of a VCXO is determined by the properties of the crystal. When a DC control voltage is applied across the crystal, the oscillation frequency changes.

Use our parametric search tool to find Voltage Controlled Oscillators (VCOs) and VCXOs from the leading manufacturers.