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Oscillators

An oscillator is an electronic circuit that produces a continuous and stable signal at a certain frequency in a certain range. It is often used as a clock generator in a system and is an important source of signal in the clock-controlled system. In various applications, oscillators are classified according to the nature of the signal produced and the purpose of their use. One of them is SIT1602BI-23-18N-25.000000G, a type of oscillator.

Application Fields and Working Principles of SIT1602BI-23-18N-25.000000G

This type of oscillator is an analog amplitude-phase lock loop (APPL) crystal oscillator. It is mainly designed for applications in which precise timing, fine phase and high frequency are required. It is mainly used in various communication systems, such as cellular phones, Bluetooth applications, GPS receivers, satellite navigation systems, and more.

The operating principle of this oscillator is based on the principle of amplitude-phase locking mechanism, or so-called “VCO (Voltage Controlled Oscillator)”. This is a technique used to maintain precise timing and phase fluctuations in alternating current (AC) signals. The mechanism uses a stable circuits to detect amplitude and phase errors in the input signal. With the input signal having a stable amplitude and phase, the internal circuitry adjusts the voltage gain as the input signal changes. This adjusts the frequency, thus maintaining a stable frequency output.

The output frequency of this oscillator is controlled by the onboard frequency-tuning components. The frequency can be adjusted by adding or removing metallic grains, thus changing the parallel and series resonance of the crystal, and consequently the output frequency. As the output frequency changes, the amplifier adjusts to compensate, maintaining the correct amplitude and phase of the signal.

This oscillator has several advantages over the traditional ring oscillators. For one, it has better stability, as the oscillator circuitry gives it a modulation-free signal. This is especially important in communication systems, where signal distortion is typically unwelcome. The crystal oscillator also offers better frequency agility, as the onboard frequency-tuning components can be used to quickly change its output frequency. Moreover, it has better phase noise performance and a lower jitter compared to ring oscillators, making it ideal for applications that require precise timing, such as in satellite navigation systems.

Due to these advantages, SIT1602BI-23-18N-25.000000G is increasingly being used in communication systems. Its flexibility in supplying a stable signal in varying frequency ranges makes it the perfect choice for many applications.

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