Voltage Controlled Crystal Oscillators (VCXOs)
Voltage Controlled Crystal Oscillators (VCXOs) are used for fine adjustment of the operating frequency and are normally used in conjunction with a phase locked loop. The frequency of a VCXO can typically be varied by up to a 150 parts per million (ppm) because the high Q factor of the crystals allows 'pulling' over a small range of frequency.
VCXO applications include telecom, test and broadcast equipment as they enable users to adjust the frequency while the circuit is active and so match an incoming signal. IQD’s VCXO models are available with a wide range of different 'pulling' (sometimes referred to as the 'VCXO tuning range') and outputs. We also offer low jitter and low phase noise VCXOs and custom designs can be considered for specific applications. Our VCXO datasheets are available from the VCXO parametric search page.