SIT9003AC-3-28SQ

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Programmable oscillators are frequency control solutions with unique performance capabilities and offer reliable operation over a wide frequency range of up to 15GHz. SIT9003AC-3-28SQ is one of the commonly used programmable oscillators, featuring a low power consumption and high frequency stability over temperature and supply voltage. This article explores the application field and working principle of this oscillator.

Application Field

SIT9003AC-3-28SQ is typically used in communications and industrial applications including base stations, professional radio systems, satellite radio communications, instrumentation, and medical imaging—all of which require high frequency stability over temperature and supply voltage and must function reliably in a wide range of environmental conditions. As an electronic component, it can be used in HF, UHF and microwave communications systems, PLL, Phase-locked loops, signal synthesis, and test and measurement equipment.

To meet communication or industrial needs, SIT9003AC-3-28SQ is perfect in providing solutions. It offers fast frequency tuning, low noise and a wide tuning range, so users can specify the right frequencies for their needs. Its differential output ensures superior phase noise, enabling customers to avoid phase jitter that ordinary driven-plate oscillators can not reach.

Working Principle

As a programmable oscillator, the SIT9003AC-3-28SQ consists of three main parts: the VCXO, Synthesizer and the Controller. The VCXO (voltage control crystal oscillator) is a quartz oscillator whose output frequency is adjusted via applied voltage. The Synthesizer is a circuit designed to generate a frequency from the VCXO. The controller, on the other hand, is a circuit that sends the correct control signal to the synthesizer to determine the frequency of the VCXO as well as outputting the selected frequency.

The SIT9003AC-3-28SQ works by first producing a digital signal from an external source such as a CPU, timer or even a PLL. This digital signal is transformed into an analogue voltage by a control circuit. The analogue voltage is then applied to the VCXO to modulate its frequency. The synthesizer then converts this modulated frequency into the desired output frequency, which is subsequently governed by the previously inputted digital signal. As soon as the correct frequency has been established, the controller circuit outputs it in the format of the previously selected digital signal.

In addition to its general programmable features, SIT9003AC-3-28SQ has the capacity to provide a range of additional functions—allowing users to implement customized solutions. For example, a watch-crystal oscillator can be integrated with a VCXO, enabling the oscillator to function without an external reference clock or frequency source. This adds further flexibility allowing users to implement a range different frequency solutions.

Conclusion

The SIT9003AC-3-28SQ is an advanced programmable oscillator boasting high frequency stability, low power consumption and wide frequency range capability. It is suitable for use in HF, UHF and microwave communications systems, PLL, phase-locked loops, signal synthesis, medical imaging and test and measurement equipment. It is made up of a VCXO, Synthesizer and a Controller, each providing optimal frequency control, allowing users to customize frequency solutions and offer the best performance in a wide range of environmental conditions.

The specific data is subject to PDF, and the above content is for reference