SIT9005ACU2H-18NK

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Programmable oscillators are devices used to convert a steady DC signal into a predictable oscillating AC signal. The SIT9005ACU2H-18NK is a type of programmable oscillator which is widely used in applications that require high precision and stable oscillation frequency. The main characteristics of this type of oscillator are low scan jitter, high accuracy and stability, low operating current, low operating voltage and wide output. This article will discuss the application field and working principle of the SIT9005ACU2H-18NK.

Application Field

The SIT9005ACU2H-18NK is primarily used in the areas of clock and pulse shaping, timing, frequency measurement and calibration. It is widely used in digital systems, military avionics, telecommunications and medical equipment, as well as audio, video, automotive and many other industrial applications. It provides a wide range of output frequencies and is especially suitable for use in applications with long operating conditions such as monitoring, alarm, scanning and radio communication. Its low power consumption and low operating voltage also make it suitable for portable and handheld devices.

Working Principle

The SIT9005ACU2H-18NK consists of a frequency-locked loop and a frequency-adjustable block. The frequency-adjustable block generates an internal oscillating signal with a fixed frequency which then passes through a low-pass filter and is output by a voltage-controlled oscillator (VCO). The frequency of the output signal is then adjusted by a reference signal from the frequency-locked loop. The frequency-locked loop compares the output signal from the VCO with a reference frequency, and an error voltage is generated. This error voltage is then applied to the VCO where it is used to adjust the output frequency of the oscillator. This cycle continues until the error voltage is zero or close to zero, indicating that the output frequency is now equal to or very close to the reference frequency1.

The advantages of the SIT9005ACU2H-18NK programmable oscillator include its low operating voltage and current, and its high accuracy and stability. Its low power consumption also makes it suitable for use in portable and handheld devices. Furthermore, the oscillator can be easily adapted to different applications with its wide output frequency range, making it a versatile and reliable choice for many different applications.

In conclusion, the SIT9005ACU2H-18NK is a type of programmable oscillator with many applications. Its main features include low voltage, low current, high accuracy, and wide output frequency range. This makes it suitable for many different applications including digital systems, military avionics, telecommunications and medical equipment, as well as audio, video, automotive and many other industrial applications.

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