SIT1602AC-13-33E-33.333000E

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Oscillators are active components used for frequency control, frequency calibration and signal generation in electronic circuits. Among them, the SIT1602AC-13-33E-33.333000E oscillator is a voltage controlled oscillator (VCO) with outstanding basic properties.

Application Field

The SIT1602AC-13-33E-33.333000E oscillator has wide application fields, such as signal generators, frequency synthesizers, radio and television receivers, frequency multipliers, modulators and transmitters. The oscillator can also be used for oscillation control of the laser, microwave oscillator, frequency counter, radio transceiver and low power transmitter.

Working Principle

The SIT1602AC-13-33E-33.333000E oscillator typically employs a voltage controlled oscillator circuit, so its frequency can be varied through the adjustment of a voltage. The VCO consists of a static differential amplifier, flip-flop and capacitor. The oscillation frequency is determined by the amount of charge injected into the capacitor, which is in turn determined by the size of the bias current applied to the time-constant RC network comprising the differential amplifier and the feedback capacitors.

When the oscillator is powered on, the output of the differential amplifier will be alternately switched between high and low levels. The transition from high to low levels will trigger the flip-flop to generate an output that will start a charging current that is drawn from the controlling voltage source. This will cause the capacitor to charge. As the capacitor reaches the threshold voltage, the output of the amplifier changes state and the flip-flop subsequently changes its output state to the opposite of what it was before.

The cycle returns to the beginning and the cycle will continue to repeat, inducing a stabilized oscillation at the predetermined frequency. By changing the controlling voltage, the frequency of the oscillator can be adjusted. The SIT1602AC-13-33E-33.333000E oscillator is featured by high accuracy and wide tuning range.

Conclusion

The SIT1602AC-13-33E-33.333000E oscillator is an active component used for frequency control, frequency calibration and signal generation in electronic circuits. The oscillator can be used in wide application fields, such as signal generators, frequency synthesizers, radio and television receivers, frequency multipliers, modulators and transmitters. Its functioning principle is based on the voltage controlled oscillator circuit, in which frequency is adjusted through the varying of the controlling voltage.

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