SIT9120AC-1B3-25S133.333330E

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Oscillators play an important role in technology today. From powering radio and television communication to keeping digital clocks in sync, they are essential for modern life. The SIT9120AC-1B3-25S133.333330E oscillator is a particularly robust frequency source that is used in a variety of electronic applications. This article will discuss the SIT9120AC-1B3-25S133.333330E’s application field and working principle.

What Is an Oscillator?

An oscillator is an electronic circuit that produces an alternating signal of a fixed frequency and amplitude that is outputted from an output pin when powered up. Oscillators can be either passive, such as those that use capacitors and resistors to form a circuit, or active, such as those that rely on operational amplifiers or transistors. The frequency of the output signal can be adjusted by changing the values of the components in the circuit.

Application Field

The SIT9120AC-1B3-25S133.333330E is an active oscillator that is commonly used in audio equipment, such as PCs, car entertainment systems, and smartphones. It is also a key component in digital signal processors (DSPs) and digital-to-analog conversion (DAC) chips. It is particularly suitable for these applications due to its wide frequency range, high-precision operation, and low power consumption.

Working Principle

The working principle of the SIT9120AC-1B3-25S133.333330E oscillator is relatively simple. It relies on an active RC (resistor-capacitor) network to generate its signal. The active component in the circuit is an operational amplifier (op amp) that is connected in an inverting configuration, which produces an output signal that is 180 degrees out of phase with its input signal. The RC network is connected to the non-inverting input of the op amp, which provides a voltage reference to the op amp. When the op amp is powered up, it produces an alternating signal of a fixed frequency that is determined by the values of the resistor and capacitor.

A frequency synthesizer may also be used with the SIT9120AC-1B3-25S133.333330E oscillator. The synthesizer is connected to the RC network and is used to adjust the frequency of the output signal. This is done by changing the values of the resistor and capacitor in the RC network, which changes the frequency of the signal that is outputted by the op amp.

The SIT9120AC-1B3-25S133.333330E is also designed to reduce jitter, or random noise, in its output signal. This is done by using a phase-locked loop (PLL) that synchronizes the op amp’s output signal to the input signal of a reference clock. The PLL also helps to maintain a stable frequency for the oscillator.

Conclusion

The SIT9120AC-1B3-25S133.333330E oscillator is a robust frequency source that is commonly used in audio equipment, digital signal processors, and digital-to-analog conversion chips. Its working principle is relatively simple, relying on an active RC network and an operational amplifier that is connected in an inverting configuration. A frequency synthesizer may also be used to adjust the frequency of the output signal. Additionally, a phase-locked loop helps to reduce jitter and maintain a stable frequency for the oscillator.

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