SIT8208AI-GF-33E-40.000000T

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Oscillators are circuits which generate an output signal of constant frequency, and they are a main building block for various applications, such as in the fields of communicaions, signal processing, audio, radio and digital imaging. The SIT8208AI-GF-33E-40.000000T is an oscillator specially designed for those applications in which precision timing and performance is a key requirement. It features an output frequency of 40.000000 MHz, with a maximum frequency tolerance of ±20 ppm. It is capable of operating in temperatures between -40°C and 85°C and requires a supply voltage of 3.3 VDC.

The SIT8208AI-GF-33E-40.000000T oscillator performs as a LC oscillator, a type of oscillator which relies on an inductor and a capacitor. These components form an energy storage oscillator, simply known as LC oscillator or tank circuit. The inductor stores magnetic flux and the capacitor stores electrical energy. Both components are connected in series.

To better appreciate the principles involved in this oscillator one must consider the 3 stages of its operation cycle:

The initial stage is the charging stage. During this stage, current flows through the capacitor and inductor. This current charges the capacitor up to just below the applied voltage. As the magnetizing current in the inductor is increasing, the stored energy in the system is also increasing. Once the capacitor reaches its peak value the second stage begins.

The second stage is the discharging stage. During this time, the capacitor\'s voltage begins to decrease while the current is flowing through the inductor. This stage is the most important part of the cycle as this is where the output signal is generated. The frequency of the generated signal is related to the values of the capacitor and inductor and to the applied voltage.

Finally, the inductor magnetic flux energy is being depleted, which causes the current to also decrease. This is the third stage which is the recovery stage. During this stage, the recoverable energy in the system will be at its minimum and the system will be ready to start another cycle. This process will repeat itself continuously, generating a steady output frequency with no jitters.

In summary, the SIT8208AI-GF-33E-40.000000T oscillator is designed to provide an accurate and consistent output signal with high performance and reliability. It operates in the LC oscillator mode, where a carefully calculated combination of capacitance and inductance is used to generate a desired output signal of constant frequency. The frequency precision of this oscillator is within ±20ppm and the operating temperature range ranges between -40°C and 85°C. Moreover, the oscillator requires a supply voltage of 3.3 VDC.

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