SIT3809AI-2-18EE

Programmable oscillators are electronic components designed to provide an output signal of a specific frequency, in a very wide range of frequencies, and under various conditions driven by a common input signal. SIT3809AI-2-18EE is one of such oscillators. This oscillator features small form factor, fast input signal response, and wide output frequency range. As a result, it has multiple application areas in different industries.

One of the major areas of application for SIT3809AI-2-18EE is in mobile phones. This oscillator can be used to drive and control the clock signal in a mobile phone. By controlling the clock signal, the mobile phone can be put into different operating states to support a range of features. This oscillator is also capable of driving the baseband processor in the mobile phone to deliver a signal with a certain frequency that is suitable for transmission and reception in various networks.

SIT3809AI-2-18EE also has application in medical devices. This oscillator can be used to control signal for a range of medical applications. The control signal generated by this oscillator is reliable, accurate, and can be used to drive different medical instruments, such as ventilators, heart monitors, ECG monitors, infusion pumps, and many more.

SIT3809AI-2-18EE is also used in aviation navigation systems. It can be used to generate signals of specific frequencies used for navigation of airborne vehicles. The control signal generated by this oscillator can be used to maintain the course and altitude of aircraft, or to help it in detection of other moving objects in the sky.

The working principle of SIT3809AI-2-18EE is based on Analog Phase-Locked Loops (APLL). APLL is a circuit that uses the input signal to generate the output signal at a specific frequency. The input signal is divided by a frequency divider and a phase comparator to compare its frequency and phase with the reference frequency and phase. The difference between the input and reference signals is used to control the voltage-controlled oscillator (VCO). The output of the VCO is then fed back to the phase comparator and the cycle continues. The APLL provides dynamic control of the output frequency, allowing the frequency to be changed without interrupting the circuit.

In conclusion, SIT3809AI-2-18EE is a programmable oscillator that can be used for a wide range of applications. It is based on APLL technology, which allows for fast input signal response and wide output frequency range. It is commonly used in mobile phones, medical devices, and aviation navigation systems.