SIT8008AIR3-30S

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Programmable Oscillators - SIT8008AIR3-30S Application Field and Working Principle

Programmable Oscillators are electronic components that produce a periodic electronic signal. They are usually used to generate a clock signal for digital circuits such as microprocessors, memory chips and FPGAs.

One type of Programmable Oscillator is the SIT8008AIR3-30S. This oscillator is a voltage-controlled, integrated surface-mount oscillator that operates from 3.0 to 30.0 MHz (±25 ppm over the -20 to + 80 °C temperature range). It is suitable for a wide range of applications such as automotive, industrial, Power Control, telecom and consumer electronics.

Application Field

Due to its low profile and high performance, the SIT8008AIR3-30S is particularly suitable for automotive and consumer applications. Its small size and low-cost manufacturing combined with its high performance makes it an ideal choice for cost-sensitive applications. Its wide temperature range (-20°C to +80°C) makes it suitable for harsh environments.

In the automotive industry, the SIT8008AIR3-30S is used for ignition control, airbag control, powertrain control and LED control. In consumer applications, it can be used for display and timing control, noise control and general clock signal generation.

Working Principle

The SIT8008AIR3-30S works by converting an input voltage into a precisely controlled output frequency. The oscillator is based on a phase-locked loop (PLL) topology and utilizes a crystal reference that is phase-locked to the output signal. This ensures that the output does not drift over time. The voltage-controlled oscillator (VCO) is the heart of the SIT8008AIR3-30S, and it is used to generate the output frequency. The frequency of the output signal is determined by the frequency of the crystal reference, the PLL internal gains and the VCO tuning voltage.

The VCO tuning voltage of the SIT8008AIR3-30S can be set and adjusted via a 10-bit serial programming interface. This allows for precise control of the output frequency and provides for a high degree of flexibility. Additionally, the oscillator can be programmed using an external 10-bit DAC and a simple serial programming interface.

Conclusion

The SIT8008AIR3-30S is a versatile, low-profile programmable oscillator that is suitable for a wide range of applications, particularly automotive and consumer applications. Its low-cost manufacturing, high performance and wide temperature range make it an ideal choice for cost-sensitive designs. The frequency of the output signal can be precisely controlled via a 10-bit serial programming interface or an external 10-bit DAC.

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