637V4475C3T

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Oscillators are an important category of electronic circuits that generate a periodic signal with a determined frequency. These are used in a multitude of applications such as frequency synthesizers, clock and data recovery in telecommunication, and in signal conditioning for sensing. 637V4475C3T is an oscillator useful in such purposes.

This small, surface-mount transistor is a voltage-controlled crystal oscillator (VCXO) used to generate a stable frequency signal. It has a nominal frequency of 637MHz, which makes it suitable for a wide range of applications from HF receivers up to a cell phone\'s signal base station. The VCXO uses an quartz crystal resonator to create a stable frequency output.

The advantage of using a VCXO is that the output frequency can be adjusted within its specified tuning range. This is done by applying an external DC voltage which is then translated into frequency change by the oscillator. This makes the device ideal for applications where a precise frequency is required or when there is a need for frequency agility.

The 637V4475C3T oscillator is designed to be used in a broad range of applications, including point-to-point radio links, HF transmitters and receivers, cellular base stations, and satellite communications equipment. It is also used in test and measurement equipment, medical imaging, and digital TV broadcasting.

The device has two contacts – a DC power supply and a signal output. An external DC voltage applied to the power supply terminal helps adjust the frequency of the output signal to the desired value. The output signal from the device is available through the signal output contact, and is intended to be connected to an RF signal processing circuit.

In terms of performance, the 637V4475C3T oscillator is extremely stable, with a low phase noise output. It produces an ultra-low phase jitter of typically 2.5ps. Additionally, it has a wide operating temperature range of -40 to +85° C, and an output power level of +10.5dBm.

This high-accuracy VCXO is suitable for many demanding applications, ensuring that the system performance is unaffected by external environmental factors. The 637V4475C3T oscillator offers both high reliability and cost-effective manufacturing. It is a reliable, compact, and cost-effective solution for many applications requiring an oscillator.

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