SIT1618AA-22-33S-25.000000G Crystals, Oscillators, Resonators

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Oscillators are electronic circuits which output a periodically varying signal which primarily assist in providing timing and control signals within electronic circuits. SIT1618AA-22-33S-25.000000G is an example of an oscillator, which primarily functions to convert sine wave voltage to a square wave output in order to provide clock and delay signals.

The SIT1618AA-22-33S-25.000000G oscillator is a voltage-controlled-oscillator (VCO) type with a frequency range of 2.25MHz to 24.75MHz. The oscillator comprises of a sine wave generator, N-toggle, State-Changer, PLL reference and Programmable frequency divider.

The principle of operation of the SIT1618AA-22-33S-25.000000G oscillator involves input of external control voltage (Vin) to control the output frequency of the oscillator. The input signal of Vin is applied to the frequency changer, which is a circuit with two inverting operational amplifiers each connected with frequency-determining resistors and capacitors. This circuit controls the frequency of the oscillator by varying the frequency of the sine-wave. The output of the frequency changer forms the input to the N-toggle circuit. This circuit operates as a flip flop which creates two square wave outputs with a 90° phase difference from each other. These outputs then form the input to the ‘state changer’ circuit, which controls the polarity of the outputs. The output of the state changer is applied to a programmable frequency divider to divide the frequency of the oscillator as per the application.

The frequency of the output signal produced by the SIT1618AA-22-33S-25.000000G oscillator can be configured by controlling the input voltage Vin, and hence it is used in applications where a specific frequency signal is required. Due to its high frequency range and good accuracy, the SIT1618AA-22-33S-25.000000G oscillator is used in telecommunication applications for frequency hopping applications and is also seen in the frequency of 5GHz Wi-Fi links room clocks, medical instruments, underwater acoustic communication systems and navigation systems.

The SIT1618AA-22-33S-25.000000G oscillator provides excellent frequency stability, high reliability and a wide range of frequencies which make it an ideal choice to be used in a wide range of applications. With its unique combination of features and performance, the oscillator is an effective low-cost solution for applications requiring an accurate and reliable frequency source.

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