SIT3809AI-2-28EY

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The SIT3809AI-2-28EY programmable oscillator is an air-coil crystal oscillator, a device used to generate a continuous sequence of pulses with a particular frequency, or to maintain a fixed frequency. This crystal oscillator offers stability, frequency accuracy, and phase noise performance for use in frequency-hopping or phase-locked loop applications. The oscillator provides frequency tolerance of 1.5kHz at 20MHz, phase-locked loop locking times of 2.17μs, and 72MHz sine wave amplitude of 10dBc. The device also features a frequency range of 20-72.46MHz, an input voltage range of 3.3-5.0V, and power consumption of 1mA. It is available in an easy-to-use, surface-mount package.

The programmable oscillator operates on the principle of piezoelectricity, in which the application of mechanical strain to a piezoelectric material creates a sizable electrical charge. This phenomenon enables the production of crystal oscillators, in which a small quartz crystal\'s size is perfectly tuned to resonate at a specific frequency when a voltage is applied. Quartz possesses the unique property of being able to vibrate at a particular frequency when a voltage is applied to it, helping to give crystals their superior accuracy and stability.

The SIT3809AI-2-28EY oscillator is composed of a quartz crystal, an oscillator circuit, and a feedback loop. A precision oscillator circuit applies a specific DC voltage to a quartz crystal, typically in the range of 1 to 20MHz. The quartz crystal vibrates at the same frequency and sends this signal back to the oscillator circuit. The oscillator circuit amplifies the signal and sends it back to the quartz crystal, thus maintaining the oscillator\'s natural frequency. This self-sustaining process is known as the Piezoelectric Effect.

The SIT3809AI-2-28EY oscillator is ideal for both low-noise and high-power applications. It is widely used in wireless telecommunication systems, in-car electronics, and audio broadcasting. Its ability to maintain its frequency over temperature swings makes it an ideal choice for medical applications where precise, stable frequencies are essential. It can also be used in wide-area wireless networks and radio transmitters, where frequency accuracy is of paramount importance. Additionally, the oscillator is ideal for use in high-power applications, as it can handle power levels of up to 5W without compromising on performance.

The SIT3809AI-2-28EY programmable oscillator is a versatile, accurate device that can be used in a wide range of applications. Its high frequency accuracy and low power consumption make it ideal for use in a variety of settings, from low-noise to high-power applications. The oscillator\'s ability to maintain a precise frequency over temperature makes it suitable for precision medical applications, and its wide frequency range ensures accurate tuning for wide-area wireless networks and radio transmitters. The easy-to-use surface-mount package makes it suitable for a variety of applications, making this oscillator a popular choice for engineers and designers.

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