FD1200028

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Oscillators refer to devices that use a feed-back circuit to periodically output an intermittent or continuous signal of a certain frequency.

FD1200028 Application Field and Working Principle

The FD1200028 oscillator belongs to this category. It is a voltage-controlled oscillator (VCO) device with operating parameters that make it an ideal choice for many timing and radio frequency (RF) applications, such as Bluetooth and Wi-Fi. The operating parameters of the oscillator include wide operating frequency range from 8kHz to 125MHz, good phase noise performance, low power consumption, and high accuracy.

The VCO device is made up of several electric components, including an inductor L, varactor diode D, and variable capacitors C1 and C2. It also has an input that is connected to a DC voltage source, and an output that is connected to the power amplifier. The DC voltage source is used to control the frequency of the VCO device.

The working principle of the FD1200028 oscillator is as follows. The varactor diode is connected to the inductor L and the capacitors C1 and C2. When the DC voltage is applied to the varactor diode, the diode capacitance changes, which varies the inductance of the inductor. This causes the resonant frequency of the oscillator to change accordingly. As a result, by changing the DC voltage input to the varactor diode, the resonant frequency of the oscillator will change accordingly.

The frequency of the output signal is determined by the frequency of the resonant circuit, or the resonant frequency of the oscillator. The output signal from the oscillator will be a sinusoidal signal of a frequency equal to the resonant frequency of the oscillator. The output frequency of the oscillator is typically controlled by a voltage controller.

The FD1200028 oscillator is widely used in timing and RF applications, such as Bluetooth and Wi-Fi. It is also used in microwave radio and mobile phone antenna systems, frequency synthesizers, and local oscillators.

In summary, the FD1200028 oscillator is a voltage-controlled oscillator device with wide frequency operating range, good phase noise performance, low power consumption, and high accuracy. It is widely used in many timing and RF applications. Its operating principle is based on changing the capacitance of varactor diode, which causes the resonant frequency of the oscillator to change accordingly.

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