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Oscillators

An oscillator is an electronic device that generates a continuous signal, typically with a sinusoidal waveform, without relying on an external power supply. They are widely used in electronic circuits for signal generation, signal processing, and communication purposes. One of the most common oscillators is the SIT8208AC-2F-28S-37.500000X oscillator.

Application Field of SIT8208AC-2F-28S-37.500000X

The SIT8208AC-2F-28S-37.500000X oscillator is a programmable frequency oscillator (PFO) specifically designed for use in portable and wireless devices which require long battery life. The device features a wide, 4-band programmable frequency range of 8 to 280 MHz. In addition, the PFO offers ultra-low power consumption of only 32 mA at 3V voltage supply. The PFO complies with JEDEC and EIA standards, making it suitable for a variety of applications including digital receivers, set-top boxes (STBs) and automotive infotainment systems.

The SIT8208AC-2F-28S-37.500000X PFO is capable of accurately controlling the frequency in response to temperature variations and voltage changes. In addition, the device is designed for mobile applications, featuring fast warm-up time and fast clock enable/disable time.

The SIT8208AC-2F-28S-37.500000X PFO is optimized for use in applications where low cost, size, and power consumption are important. The device is simple to use, featuring an integrated crystal, an enable/disable pin, and an I2C interface. The I2C interface can be used to program the PFO\'s operating frequency and parameters.

Working Principle of SIT8208AC-2F-28S-37.500000X

The SIT8208AC-2F-28S-37.500000X is a voltage-controlled oscillator (VCO). A VCO is a type of oscillator that uses a voltage to control the frequency of an oscillating signal. In the case of the SIT8208AC-2F-28S-37.500000X, the device uses a voltage to control the frequency of the generated signal.

The SIT8208AC-2F-28S-37.500000X PFO utilizes a digital phase-locked loop (PLL) architecture. The PLL consists of a voltage-controlled oscillator (VCO) and a phase detector, which are connected in an analog feedback loop. The phase detector compares the phase and frequency of the input signal and the output signal of the VCO to determine if they are in phase. If they are not, the phase detector will adjust the frequency of the VCO until the two signals are in phase.

The SIT8208AC-2F-28S-37.500000X PFO also features frequency modulation, pulse shape modulation, and a holdover mode. The frequency modulation feature allows the device to adjust the frequency of the output signal in response to temperature changes and voltage changes. The pulse shape modulation is a feature that allows the device to produce a slightly different output signal from the same input signal. This can be used to improve the output signal’s ability to remain in sync with the input signal. The holdover mode allows the device to remain in a specific frequency range for an extended period of time.

Conclusion

The SIT8208AC-2F-28S-37.500000X oscillator is a low power, programmable frequency oscillator designed for a variety of applications. It is optimized for use in low-cost, low-power applications, featuring a wide programmable frequency range, low power consumption, and an integrated crystal. In addition, the PFO offers a variety of features, including frequency modulation, pulse shape modulation, and holdover mode, making it suitable for a variety of applications.

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