SIT9002AC-38H18DO

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A programmable oscillator is an oscillator featuring an integrated phase-locked loop circuit, enabling users or applications to adjust or modify signals from the frequency, phase and amplitude required. This flexibility allows a single device to be used in multiple applications, or for all possible applications within the device’s specifications. The SIT9002AC-38H18DO is a typical example, which belongs to the programmable oscillator family.

The SIT9002AC-38H18DO is a key component used in the design of efficient, cost-effective and reliable communication systems. It is a type of programmable oscillator specifically designed for applications requiring low jitter, low phase noise, and wide range frequency & duty cycle. This type of oscillator is particularly suitable for broadcasting systems, communication systems, digital cameras, and other fields which demand high precision.

With a wide frequency range from �10 to +10% (relative to nominal value), the SIT9002AC-38H18DO is able to provide a wide range of output frequencies, which can be programmed and adjusted within the range. It features high stability & accuracy with a power supply voltage ranging from 3.3 to 5V. It also has a low initial frequency tolerance of 9.95 to 10.05kHz.

In terms of operating principle, the SIT9002AC-38H18DO uses a phase-locked loop (PLL) circuit to generate a digitally controlled output frequency. The frequency of the output is determined by a given reference frequency, the oscillation frequency of the oscillator, the division ratio, and a selectable carrier frequency. When a given reference frequency is applied, the integration of the PLL circuit and a frequency division network can generate the frequency of oscillation, which is then modulated and output by the carrier frequency. Moreover, the accuracy of the output frequency is determined by the quality and stability of the reference clock signal.

In conclusion, the SIT9002AC-38H18DO is a key component for applications requiring low jitter, low phase noise, and wide range frequency & duty cycle. It provides a wide range of output frequencies which can be adjusted within a wide frequency range from �10 to +10% (relative to nominal value). Featuring a low initial frequency tolerance, high stability and accuracy, it utilizes a PLL circuit to generate a digitally controlled output frequency.

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