SIT1602BC-11-25N-75.000000D

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Oscillators

Oscillators are widely used in many industries and applications, especially for timing, triggering, and frequency control. Among all the oscillators, SIT1602BC-11-25N-75.000000D is a voltage-controlled oscillator (VCO) that is often deployed in space-constrained applications.

Application Field

The SIT1602BC-11-25N-75.000000D is specially designed for wideband applications in 3 to 32GHz range, such as point-to-point and multi-point radio systems, local radio systems, space communications, and radar systems. The oscillator features a low noise figure and a wide gain flatness. Moreover, the product has excellent tuning linearity and temperature stability, making it an ideal choice for high-precision systems.

Working Principle

The principle of the SIT1602BC-11-25N-75.000000D is realized by a voltage-controlled oscillator (VCO) divided into two stages. The first stage is the oscillator, composed of an inductor, a capacitor, and a high Ohmic resistance (Rg). The voltage across the oscillator is determined by the Rg and fluctuates when a control voltage (Vco) is applied. This change in voltage results in an oscillation of the frequency output. The second stage is the amplifier, which therefore amplifies the output signal significantly.

In the circuit, the inductor and capacitor comprise a tank circuit which generates an oscillation, while the Rg provides a path to release the harmonic energy in an expedient manner. The voltage across the oscillator then fluctuates when a control voltage is applied, resulting in a change in the frequency output. Finally, the amplifier increases the output signal of the oscillator, resulting in a much more precise and stable output.

For the SIT1602BC-11-25N-75.000000D oscillator, the temperature stability is improved by utilizing a proprietary ceramic resonator. The resonator, which is optimized for wideband applications, has superior bias stability and temperature coefficient. Moreover, the vibration sensitivity is minimized by means of a low Rg and low frequency-selective feedback loop. This ensures excellent return loss and low phase noise performance.

Conclusion

In conclusion, the SIT1602BC-11-25N-75.000000D voltage-controlled oscillator is suitable for wideband applications in 3-32GHz range. It features low noise figure, gain flatness, tuning linearity, and excellent temperature stability. The working principle behind this oscillator is that it consists of an oscillator composed of an inductor, a capacitor, and an Rg, followed by a high power amplifier to increase the output signal. Moreover, it uses a proprietary ceramic resonator for improved temperature stability and low phase noise performance.

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