637V14836C3T

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Oscillators

Oscillators are devices used to produce a signal at a specific frequency, defined by its application field. Oscillators can be used in a wide range of applications, from the entertainment, automotive, medical, and security industries, among many others. Some oscillators create a signal in the form of a sine wave, while others generate noise or other types of signals. The components and characteristics of oscillators vary depending on their purpose, but all contain some type of active device, such as a transistor, as well as a tank circuit – a combination of capacitors and inductors – and a power source.

637V14836C3T is one type of oscillator commonly used in a wide range of applications. It is a voltage controlled crystal oscillator (VCXO) designed to provide a low jitter clock signal for digital applications, such as navigation, broadcast, and communications. The device has a frequency range of 11.0592 to 37.125 MHz and offers a low phase noise of -132dBc/Hz at 10 kHz offset, enabling precise clock signal generation. 637V14836C3T is also very small in size and features a maximum frequency stability of +/-100 ppm over an operating temperature range from -20°C to +70°C.

Application Field

637V14836C3T oscillators are primarily used in applications that need a reliable and precise clock signal with low jitter and low phase noise. Such applications include digital radios, amateur radio, test and measurement equipment, satellite navigation, cellular phones, base stations, broadband and long haul digital communication systems, and other equipment where accuracy of timing is essential.

Working Principle

Like all types of oscillators, 637V14836C3T uses a combination of an active device, such as a transistor, a tank circuit (which is composed of inductors and capacitors) and a power supply. The active device is the source of the signal and its frequency is determined by the tank circuit. The power supply provides the energy required to generate the signal. In a VCXO, the frequency of the signal can be adjusted by controlling the voltage applied to the active device. This allows for precise control of the oscillator\'s output frequency over a wide range.

637V14836C3T oscillators have a quartz crystal as the resonator in their tank circuit to guarantee a stable output. The quartz crystal has a very low thermal expansion coefficient and a high level of frequency stability to ensure precise output frequency. The VCXO is designed to ensure very low jitter and phase noise and the quartz crystal also contributes to this, providing the required frequency stability even at temperatures up to 70°C.

In summary, 637V14836C3T oscillator is a VCXO designed for applications that require high accuracy and reliable performance. This device is most often used in digital radio, telecommunication, and navigation applications because of its superior jitter and phase noise performance and wide frequency range.

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