SIT9005ACB2G-XXNA

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Programmable Oscillators encompass numerous technology used to generate or measure time- or frequency-based signals. The SIT9005ACB2G-XXNA is a popular wideband, low power, crystal-based programmable oscillator solution used in a variety of applications. This document outlines the typical applications and working principles of the SIT9005ACB2G-XXNA.

Applications

The SIT9005ACB2G-XXNA is a highly configurable device which can be applied to a range of applications. It is commonly used in wired and wireless telecommunications, aerospace, robotics, and medical-imaging areas. The unit offers a wide 8 kHz to 60 MHz range, with adjustable frequency levels and independent programmable control outputs for gain and Spurious free dynamic range (SFDR) measurement processes. The low noise feature also helps in certain high-resolution imaging applications.

Working Principle

The SIT9005ACB2G-XXNA is composed of four major components: a crystal oscillator, a programmable gain amplifier (PGA), a digital phase-locked loop (DPLL), and a fixed voltage regulator. It works by first taking a signal input from an external crystal oscillator, which is then amplified through the PGA to improve the signal-to-noise ratio. After the signal is amplified, it is fed into the DPLL, which modulates the input frequency to match the desired output frequency. Finally, the signal is stabilized and adjusted using the fixed voltage regulator. This process allows for precise frequency and phase control and enables the user to produce accurate frequency levels with less than 1 ppm drift over temperature.

Conclusion

The SIT9005ACB2G-XXNA is a versatile and reliable programmable oscillator capable of providing excellent performance in a variety of applications from low power wired and wireless telecoms to high resolution medical imaging. Its wide range, adjustable frequency levels, and independent programmable control outputs make it suitable for a range of operational contexts. By manipulating the signal input and using the PGA, DPLL, and fixed voltage regulator, it is possible to achieve consistent and modulated frequency output with minimal drift over a temperature range.

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