SIT8208AC-GF-25S-19.440000X

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Oscillators are electric circuits which generate periodic signals that can be used to regulate the frequency or timing of other circuits. The SIT8208AC-GF-25S-19.440000X is a quartz crystal oscillator which is typically used for timing and frequency applications. It features an excellent frequency stability of up to 1.0ppm and high reliability, making it suitable for a wide range of applications.

Applications

The most common applications for the SIT8208AC-GF-25S-19.440000X oscillator are in precision timing and frequency control. It is typically used in cellular base stations, precision medical instruments, GPS receivers, ultrasound systems, robotics, avionics systems, and other high-precision applications. It is also used in frequency synthesizers, clock circuits, and other circuits requiring very precise frequency control.

Structure

The SIT8208AC-GF-25S-19.440000X oscillator consists of a ceramic package that houses both the quartz crystal and associated electronics. The quartz crystal is used in combination with a voltage controlled oscillator (VCO) and temperature compensated circuit (TCXO) to maintain a precise frequency output. The device is available in 3.3V or 5V models. It requires only a single voltage supply and is rated for operation over the extended industrial temperature range.

Working Principle

The SIT8208AC-GF-25S-19.440000X oscillator works by driving a quartz crystal with a constant current from a voltage controlled oscillator (VCO). The quartz crystal creates an oscillating signal with a very stable frequency. The signal is then amplified by the TCXO (Temperature Compensated Crystal Oscillator) in order to achieve the desired level of reliable performance. This ensures that the oscillator’s output remains stable over a wide range of temperatures. Once the signal reaches the amplifier, it is converted into a sine wave and sent out as the oscillator’s output.

Conclusion

The SIT8208AC-GF-25S-19.440000X oscillator is a precision quartz crystal oscillator designed for timing and frequency applications. It features excellent frequency stability of up to 1.0ppm and high reliability, making it suitable for a variety of applications requiring precise frequency control. The device is available in both 3.3V and 5V models with a single voltage supply and extended industrial temperature range. Its working principle is based on driving a quartz crystal with a constant current from a voltage controlled oscillator (VCO) which is then amplified by the TCXO to attain the desired accurate performance.

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