SIT1602BI-21-33E-77.760000D

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Oscillators are electronic components commonly used as signal sources. SIT1602BI-21-33E-77.760000D is one of the oscillators used in various fields. This article focuses on the application field and working principle of the PLL oscillator SIT1602BI-21-33E-77.760000D.

The SIT1602BI-21-33E-77.760000D PLL oscillator has been designed to be the PLL chip of radio frequency receivers. It is mainly used in such fields as digital television, wireless receiving, satellite receiving and wireless video transmitter receiving, and is also used in mobile communication system\'s base station timing, frequency hopping, ultra-wideband signal receiving and transmitting and other fields. It has the characteristics of stable frequency, wide frequency range, high frequency accuracy and low power consumption, with its input voltage range being 1.6V-3.3V.

The working principle of SIT1602BI-21-33E-77.760000D PLL oscillator is based on a combination of phase-locked loop and voltage-controlled oscillator. It includes a phase comparator, a voltage controlled oscillator, a prescaler, a low-pass filter and a phase detector. The prescaler divides the output signal of the PLL oscillator into two flow paths, which enter the phase comparator respectively. The phase comparator compares the phases of the two signals and produces an output signal. The output signal of the phase comparator is connected to the phase detector circuit. The phase detector circuit converts the phase difference signal input from the phase comparator into a voltage signal, and the voltage signal output from the phase detector also controls the voltage controlled oscillator. The output of the voltage controlled oscillator enters an analog low-pass filter to filter out the high frequency components. The low-pass filter output is connected to the input of the phase comparator.

As a medium frequency PLL chip, SIT1602BI-21-33E-77.760000D PLL oscillator has a wide range of application fields. Under the function of the combination of phase-locked loop and voltage-controlled oscillator, the outputs of this PLL oscillator are more stable and the frequency accuracy is higher. Therefore, they can be applied to digital television, wireless receiving, satellite receiving, wireless video transmitter receiving, mobile communication system\'s base station timing, frequency hopping, ultra-wideband signal receiving and transmission and other fields.

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