SIT9005ACT2G-25SJ

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Programmable oscillators provide a unique solution to the modern electronic dilemmas involving frequency stability, noise, jitter and synchronization. The SIT9005ACT2G-25SJ programmable oscillator is a microelectronic device that features such a wide range of frequency control and accuracy, therfore, allowing a high degree of frequency control that is adjustable over a broad operating temperature range. It is capable of temperature compensation and has wide frequency range with high performance.

The SIT9005ACT2G-25SJ is capable of oscillating at frequencies starting from 2MHz to 25MHz at 100 to 500 ppm, have low jitter, low phase noise, low-power consumption and a low-profile design. It also offers a number of programmable options such as modes of operation, supply voltage, temperature‐compensated frequency, clock synchronization, and jitter attenuation.

This programmable oscillator is mainly used for a wide range of applications such as in communications, automotive, medical, military, industry control, space, and navigation. It also provides solutions for integrating clock and timing requirements into IoT, cloud computing, and automotive networks.

The primary purpose of the SIT9005ACT2G-25SJ programmable oscillator is to generate stable, accurate, and low-power frequencies. It is the ideal solution for a variety of applications requiring a mix of high frequency, high stability, and low-power performance. It is also engineered to provide a positive temperature coefficient.

The device operates in a multitude of low power modes such as Active, Standby, Stop/Sleep and Halt modes that allow the user to fine-tune their power budget and to minimize power dissipation. It also provides a clock synchronization capability that enables an easy switch from external clock to crystal oscillator.

Working principle

The SIT9005ACT2G-25SJ is an Oscillator with Programmable Frequency, Low Power Consumption and Evolutionary Enhancement. It is designed on a monolithic structure, with an internal compensation network and resistor plate. It consists of a double capacitance crystal and a frequency-determining circuit, which are connected to a biasing transistor. This circuit converts the linear signals into square waveforms, and maintains the consistency of the output frequencies even under environmental variations.

The device includes an on-chip mutliplexer that provides interfaces for the default frequency selection and the measurement and monitoring of various parameters. In addition to that, the device features an internally compensated switched-capacitance crystal driven by a low-power voltage controlled oscillator (VCO). The output of that oscillator is transformed, by a programmable divider and an open loop, to the required operating frequency.

The in-system programmability of the SIT9005ACT2G-25SJ oscillator is enabled by a low voltage serial peripheral interface (SPI) communication protocol. This enables the user to program the oscillator’s parameters such as the VCO range and the output frequency from any microcontroller, FPGA or application specific integrated circuit (ASIC).

Conclusion

The SIT9005ACT2G-25SJ is a programmable oscillator designed with a wide range of frequency control capabilities and accuracy, low power consumption and a low-profile design. It offers a number of features such as clock synchronization and jitter attenuation, allowing it to be used in a wide range of applications. The device features an internal compensation network to maintain the stability of the generated output even over a wide environmental variation. It is capable of oscillating between 2MHz and 25MHz at a frequency stability of 100 to 500 ppm. In Conclusion, the SIT9005ACT2G-25SJ is the ideal choice for applications demanding frequency stability and accuracy, while providing low power dissipation and a wide frequency range.

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