SIT3809AC-2-28NB

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Programmable oscillators are versatile and complex devices designed for use in frequency control applications. They are valuable tools for many industries, from medical to automotive to communications. The SIT3809AC-2-28NB is a programmable oscillator designed for wide temperature range, low current consumption and excellent jitter performance. In this article, the application field and working principle of the SIT3809AC-2-28NB will be discussed.

Application Field

The SIT3809AC-2-28NB programmable oscillator is an ideal choice for a wide range of frequency control applications. It has a frequency range of 10Hz to 160MHz with an ultra-low profile of 5.4mm. This makes it perfect for applications where space is a constraint. This oscillator can be used for medical imaging, robotics, measuring equipment, navigation and positioning gadgets, broadband wireless systems and much more. It is also ideal for use in telecommunications and data communications systems, digital television and audio applications.

The programmable oscillator also features an adjustable pull range of ±10ppm to ±20ppm. This makes it incredibly precise, ensuring an accurate frequency output throughout the temperature range. The SIT3809AC-2-28NB is also highly robust, capable of withstanding industrial temperature ranges of -40°C to 125°C. It has an extremely low power consumption rate of 2mW nominal and 5mW max and is RoHS compliant.

Working Principle

The SIT3809AC-2-28NB works on the principle of frequency synthesis. This is a technique which allows for accurate and precise frequency control over a range of temperatures. The oscillator is designed to synthesise the required frequency using a combination of oscillators, dividers, multiplier circuits and digital logic. This combination of components is combined to create a single oscillator which produces a steady, precise signal.

The oscillator synthesises the required signal using a combination of digital and analogue components. Firstly, an oscillator of the correct frequency is selected, and then the signal is split in two. The signal is then divided down using a combination of dividers, multipliers and digital logic. The resultant signal is then recombined and fed into a mixer circuit which produces the required output signal.

The oscillator also works with an onboard temperature controller which helps to compensate for temperature variations. This ensures the oscillator maintains a steady and accurate output frequency, even in extreme temperatures. The chip also features phase-locked loop circuitry which helps to keep the output signal stable and stable over time.

Conclusion

The SIT3809AC-2-28NB is a versatile and reliable programmable oscillator that is designed for a wide range of temperature ranges and frequency applications. Its low current consumption and excellent jitter performance make it ideal for a range of frequency control applications. The oscillator works on the principle of frequency synthesis, using a combination of digital and analogue components to produce a steady and precise signal. It is also robust, capable of withstanding extreme temperatures, and is RoHS compliant.

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