SIT1602BI-12-28S-12.000000D

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Oscillators are devices that generate periodic output signals, and SIT1602BI-12-28S-12.000000D is one kind of valuable oscillators. In this paper, its application field and working principle are studied.

SIT1602BI-12-28S-12.000000D oscillator is a quartz crystal or Voltage-Controlled Crystal Oscillator (VCXO) with integrated voltage regulator. The low jitter oscillator features a robust low-skew crystal input and maintains the low-phase noise performance with variation in supply voltage. It is mainly used in wireless and wireline communication systems, precision instrumentation, military applications, and other high-reliability demand.

SIT1602BI-12-28S-12.000000D oscillator has operating voltage of 5 V and a frequency tolerance of +/-100 ppm. It also provides starting voltage as low as 0.3 V and frequency tuning range of +/-125 ppm. It features CMOS logic compatible output, high stability and low phase noise performance, with power supply range of 3.3 V to 5 V and a power consumption of 2 mA.

In terms of working principle, SIT1602BI-12-28S-12.000000D oscillator firstly measures its own starting voltage, followed by the calibration current source steps which make sure the voltage stays constant. The limited impedance of the crystal ensures the starting voltage\'s stability. The starting voltage level is then adjusted by matching the crystal capacitance to the semiconductor based-current source. The current voltage source provides low power consumption and high frequency stability.

After getting the starting voltage, the quartz crystal begins to oscillate. In the oscillation process, the crystal\'s piezoelectric effect becomes the positive and negative feedback through coupling capacitor. Under this condition, the analog signals can convert to digital signals, so the oscillator creates rhythmic pulses that reset the device\'s timer in a steady rhythm, generating an oscillating output signal.

In conclusion, SIT1602BI-12-28S-12.000000D oscillator is an ideal choice for its application field and provides high accuracy and stability. The working principle of the oscillator can be understood clearly from the above description.

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