SIT9122AC-2C3-25E250.000000Y

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Oscillators are electronic circuits used to generate electrical signal at stable and repetitive frequencies, and SIT9122AC-2C3-25E250.000000Y is one of the types of oscillators. It can be applied in many fields by adjustable frequency and precision control. This article reveals its application fields and working principle.

Application Fields

The SIT9122AC-2C3-25E250.000000Y can be widely used in four areas:

• Radio frequency: Oscillators can be used to generate radio frequencies for broadcasting, wire communications, radar and navigation. The SIT9122AC-2C3-25E250.000000Y can precisely track frequency and increase the accuracy of the broadcast signal.
• Medical instrumentation: It can provide a stable and modulated signal to a variety of medical instruments, such as electrically-calibrated temperature measuring devices, continuous physiological monitors and ultrasound imaging system.
• Communication: It\'s commonly used in various communication networks, such as fiber-optic networks, wireless LAN (local area networks) and WAN (wide area networks). Oscillators can deliver high-frequency wave signals over long distance and enhance the transmission of information.
• General electronics: Oscillators are also used in electronic video players, computer hard drives, and other electronic devices with high speed performance.

Working Principle

The SIT9122AC-2C3-25E250.000000Y oscillator is a crystal oscillator circuit, which uses a quartz crystal as the resonant element in the oscillator circuit and the frequency of oscillation is determined by its physical characteristics. It has a series resonant circuit to provide a high Q factor with low insertion loss and series resistance. The oscillator also uses an amplifier to convert the signal from the crystal to a usable signal level and to provide inversion.

Peak voltage of the crystal can be adjusted by adjusting the positive gate current, which is controlled by a transistor to adjust the frequency. The voltage between the gate and source is transformed to a control voltage (V (Cont)). When the control voltage is increased, the peak voltage of the crystal increases and the frequency increases accordingly. The current is kept within a range of 0.5 mA to 10.0 mA for controlling the frequency.

The oscillator also has an output buffer amplifier, which is used to provide a signal with a higher dynamic range and better power supply noise immunity. This buffer can even drive the loads up to 25pF. The output power of the amplifier is adjustable, it will be increased with a larger bias current.

This SIT9122AC-2C3-25E250.000000Y oscillator provides digital frequency synthesis, programmable modulation, and can achieve the amplitude stability regardless of the changes in ambient temperature or the applied voltage and frequency. It also has a wide range of operation temperature and extremely low power consumption.

Conclusion

The SIT9122AC-2C3-25E250.000000Y oscillator is a type of oscillator which is widely used in many industries including broadcasting, medical instrumentation, communication and general electronics. It is featured with adjustable frequency, high precision and low power consumption, by leveraging the crystal and amplifier.

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