SIT9005ACB2H-28EA

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Programmable oscillators are essential components of the circuit designs used in many of the ever-evolving modern electronic industrial applications. The SIT9005ACB2H-28EA is one such commonly used programmable oscillator. In this article, we will discuss the application field and working principle of this oscillator.

Application Field: The SIT9005ACB2H-28EA oscillator is an ideal choice for applications in the cordless and cellular industry, W-CDMA systems, GSM systems, Bluetooth systems, Wi-Fi devices, and AM and FM radio receivers. Moreover, it is a great fit for GPS navigation devices, satellite navigation systems, and automotive electronic applications.

Working Principle: The SIT9005ACB2H-28EA is a programmable oscillator which is used to generate a precise and repetitive output signal. It is based on a voltage-controlled oscillator (VCO) and a phase-locked loop (PLL) configuration. The VCO circuit is comprised of two transistors, a capacitor, and two resistors. It works by having the capacitors capacitance changed by the input voltage, which will then cause variations in the oscillation frequency of the circuit itself. The PLL circuit is composed of a high-speed comparator, a low-pass filter, and a voltage-controlled oscillator (VCO). The PLL circuit is connected to the VCO circuit, and it is responsible for controlling the frequency of the oscillator. This is done by the PLL continuously comparing the input signal frequency with the feedback signal from the VCO circuit. The PLL then adjusts the voltage to the VCO circuit so that the frequency of the output signal matches the frequency of the input signal. The output frequency of the SIT9005ACB2H-28EA oscillator can be adjusted by supplying different voltages to the VCO circuit. The PLL will then adjust the output frequency to match the desired frequency of the input signal. This allows for the flexibility of the output frequency to be changed, depending on the needs of the specific application. In conclusion, the SIT9005ACB2H-28EA oscillator is ideal for a wide range of electronic applications due to its programmable and precision characteristics. It is based on a VCO and PLL configuration which allow for the flexibility of the output frequency to be changed, making it an all-around great choice for many modern applications.

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