OCXO

BENEFITS OF AN OCXO

A high stability ovenized oscillator is the most stable of all crystal oscillators, providing 10 to 100 times better stability than a TCXO. The crystal and its associated circuitry are held to a specific temperature within a very tight tolerance through the use of a proportional oven and control circuit. A proportional oven is an electronic servo system which continuously supplies power to the oven. It continuously compensates for ambient temperature changes by varying the amount of oven power. In addition to providing improved temperature stability, ovenized oscillators arc also used in applications where phase noise is critical. The phase noise performance of OCXOs are superior to what can be achieved with a TCXO.

OCXO DESIGN

Here you can find a wide variety of customized Oven Controlled Crystal Oscillator designs to ±0.001 ppm over an extended temperature range, with a frequency range of I Hz to 10 MHz. We offer the lowest profile, high stability OCXO available in the industry. Our OCXO's employ the SC cut crystals for much greater stability, better phase noise, and superior aging. The SC cut, a member of the doubly rotated family of crystal (quartz crystals cut on an angle relative to two of the three crystallographic axis), reduces the sensitivity to external stresses. This allows fast warm-up and improvement in the gravitational sensitivity.

TEMPERATURE STABILITY

Temperature controlled servo technology is utilized to keep the high stability "SC" cut crystal at its optimum temperature. A double oven system may be utilized if the required stability exceeds that which can be achieved with a standard proportionally controlled oven. The double oven system houses the standard oven within a second oven. The inner oven, which houses the oscillator circuit, allows its ambient temperature changes to be buffered by the outer oven.

LOW PHASE NOISE

We offers custom OCXO designs with spectral purity that generate extremely low phase noise. This is extremely critical in systems such as communications and radar applications. When called out. We employs a phase lock servo loop frequency stability test measurement system to ensure low phase noise specifications are met.