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Oscillators

The SIT1602BC-81-25S-74.175824T is an oscillator designed and manufactured by Sitime, a Shenzhen based company. It uses a combination of quartz, temperature compensated crystal,SIT1602BC-81-25S and surface-mount elements to provide a low jitter, low power oscillation circuit. The SIT1602BC-81-25S-74.175824T is a small and versatile VCO providing a wide frequency range between 10 MHz and 250 MHz and a low power consumption of 0.03 mW.

Applications

The SIT1602BC-81-25S-74.175824T oscillator is suitable for a wide variety of applications such as frequency generation for communication systems, instrumentation, point-of-sale terminals, high-speed data transmission, consumer electronics, industrial controllers, modem timing and clock signal recovery.

Working Principle

The SIT1602BC-81-25S-74.175824T oscillator consists of a quartz crystal resonator, temperature compensation circuitry, and a CMOS-controlled oscillator. The quartz crystal resonator provides the frequency-determining element while the temperature compensation circuitry and the CMOS-controlled oscillator together provide the stability and accuracy of the oscillator.

The oscillator operates on the principle of negative resistance. The output frequency is set by the quartz crystal resonator, and the temperature compensation circuitry ensures that the output frequency is not affected by changes in the ambient temperature. The CMOS-controlled oscillator provides the negative resistance by means of current mirror which generates an in-phase signal with the maximum phase shift, thus providing stability in the oscillation.

Conclusion

The SIT1602BC-81-25S-74.175824T oscillator is a stable, low jitter device ideal for a wide variety of applications. Its low power consumption and wide frequency range make it suitable for use in a variety of communication, instrumentation, and consumer electronics applications. The combination of quartz crystal, temperature compensation elements, and CMOS-controlled oscillator provides a reliable and accurate frequency source, and makes the SIT1602BC-81-25S-74.175824T oscillator an excellent choice for those applications.

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