SIT1602BI-33-XXN-66.666660X

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Oscillators are electrical circuits that generate a periodic signal, such as a sine wave, square wave or triangle wave. They are commonly used in timekeeping, communication, audio processing, and in other applications where periodic signals are desired. SIT1602BI-33-XXN-66.666660X is a dedicated ultra-low phase noise voltage-controlled oscillator (VCO) operating in the 8GHz to 11GHz frequency band. It offers high frequency stability and extremely low phase noise over a wide temperature range.

Application Field

The SIT1602BI-33-XXN-66.666660X voltage-controlled oscillator (VCO) operates over a broad 8GHz to 11GHz frequency range. This device is primarily used in wireless communication systems such as cell phones, satellite communications, base station transmitters, and radio communication systems. It is especially well suited for applications that require ultra-low phase noise performance.

Working Principle

The typical voltage-controlled oscillator (VCO) consists of an RF tank circuit, a varactor diode, and a voltage feedback network. The RF tank circuit is constructed around an inductor and the varactor diode acts as the capacitor that is connected to the tank circuit. As the varactor diode is exposed to a bias voltage, its capacitance will vary, resulting in a change of the oscillation frequency. The voltage feedback network is connected to the output of the VCO and to a control voltage input. As the control voltage input varies, the output frequency is adjusted accordingly.

The SIT1602BI-33-XXN-66.666660X VCO uses an advanced design approach to reduce phase noise and improve RF performance. The voltage feedback network is designed for optimum power efficiency and low phase noise. A digital Pulse Width Modulation (PWM) control voltage input is used to fine-tune the output frequency with high accuracy and resolution. By regulating both the supply voltage and the control voltage input, the output frequency can be very accurately adjusted over a wide frequency range.

Conclusion

The SIT1602BI-33-XXN-66.666660X voltage-controlled oscillator (VCO) is a highly reliable, ultra-low phase noise frequency source that is designed for use in wireless communication systems. It offers excellent phase noise performance and ultra-high frequency stability over temperature. The device operates over a wide 8GHz to 11GHz range and can be fine-tuned with both supply voltage and external control voltage inputs. The high accuracy and resolution of the PWM control voltage input makes the VCO ideal for applications where precise tuning is required.

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