SIT1602BC-13-18E-27.000000D

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Oscillators

The SIT1602BC-13-18E-27.000000D is an oscillator, which is commonly used as timebase with an adjustable frequency range from 0.65 to 2 GHz. It provides continuous, accurate and sinusoidal waveforms with low amplitude noise and distortion.

Application Field

The SIT1602BC-13-18E-27.000000D is primarily designed for a variety of timing applications, such as radar, telecommunications, broadcasting and navigation. It is widely used in various discipline, including instrumentation, test and measuring, automation and medical imaging.

Working Principle

The oscillator works in a three-stage voltage-controlled configuration. The first two stages provide signal amplification, while the third stage serves as the voltage-controlled oscillator (VCO). The VCO is consists of an amplifier, an integrator, a voltage-controlled tank circuit and an output buffer. The tank circuit is the control center, consists of a capacitor and an inductor. An external voltage (Vctl) is applied to the tank circuit, the VCO frequency is changed in proportion to the applied voltage. The frequency of the VCO is determined by the external capacitance and inductance.

The output buffer provides the required power to drive the output signal. It provides a clean, low-noise sine wave signal to the output and allows the oscillator to operate over wide range of frequencies. The output amplitude is determined by the feedback resistor and the tuning voltage. The feedback resistor is also used to set the frequency of the oscillator and the amplitude is regulated by the tuning voltage.

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