SIT8208AC-GF-25E-48.000000X

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Oscillators are electrical circuits primarily used for generating electrical signals of particular frequencies. They are essential components in various electronic products in the fields of communication, automotive electronics, and computer science. One type of oscillator is the SIT8208AC-GF-25E-48.000000X, which is a voltage-controlled crystal oscillator developed by SigmaTel. In this article, we will be discussing the application field and working principle of the SIT8208AC-GF-25E-48.000000X.

Application Field

The SIT8208AC-GF-25E-48.000000X is a voltage-controlled oscillator designed to generate reference signal in wide range applications. It is widely used in notebooks, mobile phones, digital cameras and multimedia products, as well as general industry appliances. Furthermore, the SIT8208AC-GF-25E-48.000000X can also be used in medical products, aerospace applications, and instrumentation.

Main features of the SIT8208AC-GF-25E-48.000000X include low power consumption, wide frequency range, low noise, temperature compensation, wide dynamic frequency range, and high and low voltage operation.

Working Principle

The SIT8208AC-GF-25E-48.000000X is a voltage-controlled oscillator with a voltage-controlled crystal oscillator (VCXO) circuit which is generally used to control germanium or silicon crystals. The crystal oscillator is tuned to a particular frequency by applying an external voltage. The VCXO can range from a few kHz to many hundred MHz depending on the frequency response of the crystal.

The heart of the SIT8208AC-GF-25E-48.000000X is a crystal lattice which is composed of two coupled quartz crystals. The two crystals are located in parallel with the driven crystal in series with a capacitor and the ground. The differential input of the VCXO is connected to the terminals of the crystal lattice. The control voltage is used to adjust the frequency of the output signal by varying the voltage applied to the crystal.

When the control voltage is increased, the crystal starts to vibrate faster and the frequency of the output signal is increased. However, when the control voltage is decreased, the crystal vibrates slower and the frequency is decreased. This process is repeated until the desired frequency is reached. The frequency stability of the SIT8208AC-GF-25E-48.000000X is affected by the temperature and the aging process of the crystal.

In conclusion, the SIT8208AC-GF-25E-48.000000X is a voltage-controlled crystal oscillator which is highly reliable and suitable for use in a variety of applications. Its main features include low power consumption, wide frequency range, low noise, temperature compensation, wide dynamic frequency range, and high and low voltage operations. This voltage-controlled oscillator is the ideal choice for applications that require precise frequency control or a continuous frequency adjustment.

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