SIT3809AC-2-28EG

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Programmable oscillators are semiconductor devices that can easily and efficiently be used to generate various kinds of electrical signals such as periodic wave, sinusoidal wave and pulse wave. SIT3809AC-2-28EG is one of them, which has a number of built-in oscillator types and frequency range for different applications. This article will explain the application fields and working principle of the SIT3809AC-2-28EG.

SIT3809AC-2-28EG is a programmable oscillator that is designed to generate accurate frequency control across a wide range of frequencies from 2.5 MHz to 450 MHz. It features small form factor and low power consumption, bringing great convenience for applications in digital clock generator, RF communication, timing control, signal emulation, frequency hopping and other related fields.

The SIT3809AC-2-28EG is available in two versions: pin compatible and RoHS compliant versions depending on the applications and requirements. The pin compatible version is commonly used in industrial, aerospace and automotive applications while the RoHS compliant version is ideal for medical and consumer applications.

As far as the working principle is concerned, the SIT3809AC-2-28EG uses a phase-locked loop (PLL) to accurately generate signals within a given frequency range. In a nutshell, the PLL uses a voltage controlled oscillator (VCO) to generate a signal that is in phase with the input signal, and then the oscillator is locked in phase by comparing the output signal with the desired signal. This produces an output signal that follows the input signal and oscillates at the desired frequency.

The SIT3809AC-2-28EG also features a temperature-stable crystal reference circuit that is designed to reduce the frequency drift and improve signal stability over a wide temperature range. Additionally, it provides programmable features such as frequency adjustability, schmitt-trigger input, Duty-cycle adjustment and so on for better signal accuracy and reliability.

In conclusion, the SIT3809AC-2-28EG is a wide-frequency range programmable oscillator that has a large number of application fields, ranging from industrial, aerospace and automotive to medical and consumer electronics. Its working principle is based on phase-locked loop that provides accurate and stable signal output with a variety of programmable functions. The temperature-stable crystal reference circuit also helps to reduce frequency drift and improve frequency accuracy.

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