501JCA25M0000CAFR

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Oscillators

The 501JCA25M0000CAFR oscillator is a highly reliable, low phase noise voltage controlled and temperature compensated voltage controlled crystal oscillator (VCXO). It has a wide range of features and has been used in various applications with military and aerospace industries.

Application Field

As with other VCXOs, the 501JCA25M0000CAFR oscillator has been applied in many demanding applications requiring stability of a crystal oscillator and flexibility of a frequency control. Due to its stability and frequency range, it has been widely used in satellite communications, medical imaging systems, frequency synthesisers and embedded systems.

The 501JCA25M0000CAFR oscillator has also been used in modems, GPS systems, base stations and other radio applications for frequency stabilisation. It offers excellent phase noise performance, frequency stability and low current consumption when operating on 3.3V and 5V supplies. Furthermore, it has been implemented in telecom infrastructure, particularly TD-LTE systems for digitisation.

Working Principle

The 501JCA25M0000CAFR works on the principle of voltage-controlled crystal oscillators (VCXOs). It contains a variable voltage source and an oscillator crystal tuned by a voltage-controlled capacitor (VCXO). By varying the common-mode voltage, the capacitance of the crystal changes, resulting in a change in the resonant frequency of the crystal.

In order to create a stable oscillation, the VCXO also contains a temperature compensation circuit. This compensates for any change in the temperature of the crystal that might otherwise affect the resonant frequency of the crystal. The temperature compensation circuit works by adjusting the gain of the oscillator stages according to the temperature, thus keeping the resonant frequency of the crystal stable.

The 501JCA25M0000CAFR oscillator employs a frequency-tripling circuit, which allows for a maximum frequency of approximately 12.8 GHz. This frequency is extremely stable and is adjustable with a resolution of 0.25 MHz. The oscillator is also robust enough to withstand mechanical shocks and vibration.

The 501JCA25M0000CAFR is designed for operation over a wide temperature range (-40°C to 85°C). It is designed to operate over a wide range of input voltage (1.8V to 5.5V). It offers high stability over temperature and includes various package sizes and output levels.

The 501JCA25M0000CAFR is a reliable, low-noise oscillator solution that can be used in a wide range of applications. It is ideal for those looking for precision frequency control in systems where stability and reliability are required.

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