SIT8209AC-31-18S-156.257812T

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Introduction to Oscillators

Oscillators are devices which generate a repeating signal or oscillation. They are employed in various applications and for numerous purposes such as timers, frequency references, stabilize signals and much more. An oscillator consists of an amplifier, resistors, capacitors and an oscillator or feedback control element. Oscillators forms the bases for many radio and audio frequency circuity such as AM, FM, AGC, AF amplifiers as well as audio oscillators.

SIT8209AC-31-18S-156.257812T

The SIT8209AC-31-18S-156.257812T is an oscillator manufactured by Sitime Corporation, a company based in Singapore that develops and produces high-performance precision oscillators. It is a low-noise, low-jitter, low-phase-noise oscillator which can be used for applications needing precision frequency control over a wide temperature range and low EMI. The device also features a small 1.6 mm x 1.6 mm footprint, making it suitable for space-constrained applications such as mobile phones and other consumer electronics.

Application Field

The SIT8209AC-31-18S-156.257812T is used for precision frequency control in a wide range of applications, including mobile phones, cellular networks, GPS systems, military electronics, and other consumer electronics. It is also suitable for use in timing and synchronization applications, as well as medical and industrial equipment.

Working Principle

The SIT8209AC-31-18S-156.257812T is a voltage controlled oscillator (VCO) which operates over a very wide frequency range of 0.1MHz to 150MHz. It uses a series of oscillator circuits to generate a sine wave output of varying frequencies and voltage levels. The output frequency is determined by an external clock signal, which is sent to the oscillator\'s control inputs to choose which frequency is to be generated.

The frequency range of the oscillator is controlled by two external capacitors: one for frequency (C1) and one for voltage (C2). The frequency range of the oscillator is then adjusted by varying the capacitance of the capacitors. The oscillator also has a buffered output amplifier which is used to adjust the output level, in order to provide a stable and consistent signal.

Conclusion

The SIT8209AC-31-18S-156.257812T is a high-precision, low-noise oscillator designed for applications requiring a wide frequency range and low EMI. It uses a voltage-controlled oscillator circuit to generate a wide range of frequencies and voltage levels, and has an output buffer for stable signal levels. Its small footprint makes it suitable for space-constrained applications in consumer electronics, mobile phones, GPS systems, and other applications.

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