SIT1602BC-22-XXE-4.000000D

Working Principle

The SIT1602BC-22-XXE-4.000000D is a digitally-controlled oscillator (DCXO) that uses a voltage-controlled oscillator (VCO) circuit to generate a stable output signal. The VCO is tuned by a digital loop filter that adjusts the frequency of the generated signal based on the voltage applied to it. The frequency of the signal can be adjusted over a wide range, which allows it to be used in a variety of applications.

The oscillator has a frequency accuracy of 0.1 ppm, with a frequency range of 9.024 MHz to 50 MHz. It is composed of a Frequency Control Logic (FCL) circuit and a VCO circuit. The FCL circuit provides temperature compensation, clock synchronization, and frequency offset adjustment. The VCO circuit is based on a ring oscillator with a low-noise amplifier, providing a low phase noise performance.

The SIT1602BC-22-XXE-4.000000D also incorporates an on-board charge pump and frequency-stabilizing frequency synthesizer block. This provides precise frequency control over the full operating range, and enables the oscillator to work in any system without requiring external components or a calibration procedure.