SIT1602BC-21-28S-19.200000G

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Application Field and Working Principle of SIT1602BC-21-28S-19.200000G

Oscillators are electronic circuits that generate a repetitive input or output signal. The signal generated by the oscillator is AC in nature and is periodic in behavior.

SIT1602BC-21-28S-19.200000G oscillator is a kind of Voltage Controlled Crystal Oscillator (VCXO) which is a type of Crystal Oscillator with an adjustable output frequency and a moderately wide tuning range. It has an optimal working reliable temperature range of -40℃ to +85℃. The device has a high frequency stability of ±10ppm over its working temperature range of -40 to +85℃ and maximum frequency stability of ±50ppm over the full operational temperature range of -20 to +70℃. It also has a wide operating voltage range of 2.5V-3.3V. The device features an output RMS jitter of ‹1psRMS, which makes it a suitable choice for communication applications.

The device has an operating supply current of 5mA typ., providing a low power consumption at all operating conditions. The device is composed of an oscillator circuit along with a control circuit which is used to control the frequency of the output signal by varying the applied voltage.

In operation, the oscillator circuit produces a certain output frequency, which is proportional to the applied voltage. The circuit consists of a quartz crystal, an amplifier and a resonator. The quartz crystal is used to generate an oscillating signal, which is fed into the amplifier, which in turn amplifies the signal and feeds it into the resonator for further amplification. The resonator is then used to further refine the output signal so that it can meet the required output frequency. The output signal is then filtered, amplified and fed back to the input of the oscillator circuit, where it is further processed by the amplifier and resonator, and eventually output at a constant frequency which follows the applied voltage.

At low temperatures, the output frequency of the oscillator is affected due to the changes in the quartz crystal parameters. To maintain a stable frequency, the control circuit can apply a voltage to the quartz crystal, which offsets the frequency change due to temperature. The amount of this voltage is determined by the user such that the output frequency of the oscillator stays within its specified limit.

SIT1602BC-21-28S-19.200000G is used for applications such as clock signal generation for telecom and embedded systems, and mobile communication systems. It is compatible with most common logic families including ECL, CML, CMOS, and TTL.

In conclusion, SIT1602BC-21-28S-19.200000G is a highly stable, low power and adjustable frequency Voltage Controlled Crystal Oscillator which is used for clock signal generation in a range of applications including telecom and mobile communication systems.

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