SG-8002CA 66.6660M-PCBL3

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Oscillators

SG-8002CA 66.6660M-PCBL3 application field and working principle

Oscillators are electronic devices that generate an alternating current (AC) voltage following a certain frequency range. Constrained by the characteristics of their components, the frequency range and performance limits of an oscillator can vary. The SG-8002CA 66.6660M-PCBL3 oscillator is one such device, and part of an overall family of SG oscillators. Commonly used in high frequency clock synchronization applications, this oscillator offers outstanding performance in timing conditions.

The SG-8002CA 66.6660M-PCBL3 oscillator is a quartz crystal-based device, whose operating frequency is determined by the size and shape of the crystal. It is a complete oscillator assembly, constructed using miniaturized components for maximum compatibility. The 8110-52733 quartz crystal employed by the SG-8002CA 66.6660M-PCBL3 is an auto-tuneable frequency type, able to tune itself within a pre-defined frequency range of 66.6MHZ to 66.66MHz.

There are two main components found in an oscillator circuit - the quartz crystal and the amplifying circuit. The quartz crystal is the main component that sets the desired frequency. It is also responsible for providing stability and precision of the generated output signal. By driving the quartz crystal with an alternating current of the same frequency, the crystal will generate an oscillation at its desired frequency. This oscillation will be passed on to the amplifying circuit, where it will be amplified and the output voltage adjusted to the correct levels.

The SG-8002CA\'s amplifying circuit consists of various miniature components, such as a P-channel field effect transistor (FET), a capacitive divider, an emitter-base diode, and a bias current source. The FET regulates the amount of current flowing to the quartz crystal, and provides thee necessary feedback loop necessary for the self-tuning of the frequency. The capacitive divider acts as an electromagnetic shield, by blocking the parasitic inductance between the quartz crystal and the FET. The diode helps to maintain the correct bias voltage for the oscillator. Lastly, the bias current source provides the necessary current for the sustained oscillation.

The operation of the SG-8002CA oscillator is similar to that of other quartz crystal-based oscillators. Upon transmission of an alternating voltage to the quartz crystal, the crystal will begin to oscillate at its preset frequency. The oscillator then amplifies the signal and outputs a periodic waveform, which is in accordance with the frequency programmed into the quartz crystal. The SG-8002CA oscillator also includes a highly precise Internal Frequency Calibration (IFC) system, which enables it to make fine adjustments to its fractional frequency segmentation.

The SG-8002CA 66.6660M-PCBL3 oscillator is a highly versatile, miniature quartz crystal-based device, used in many high-performance clock synchronization applications. It offers excellent frequency stability and accuracy, thanks to its Internal Frequency Calibration system. Its portable size makes it suitable for applications in tight spaces, and its high frequency range makes it suitable for use in a wide range of clock synchronization applications.

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