SIT9005ACB1H-18DN

Programmable Oscillators

Programmable oscillators are electronic devices used to generate a periodic signal. They are used for a wide range of purposes, including radio, sound, and timing control. One type of programmable oscillator is the SIT9005ACB1H-18DN.

The SIT9005ACB1H-18DN is a voltage controlled crystal oscillator (VCXO) that utilizes a high-quality MEMS-based technology. It is a small, low-cost device with a wide frequency range, excellent linearity and low phase noise characteristics. Its frequency stability is maintained between -40°C to +85°C over a wide range of supply and load conditions.

Applications:

The SIT9005ACB1H-18DN is ideal for applications where low cost, low noise and high stability are paramount such as cable/satellite TV, communication systems, base station, CATV, and satellite receivers. Its small size makes it ideal for applications with space constraints, such as wireless communication systems, wireless base stations, point-to-point radio links, and time keeping modules for use in industrial and security systems.

Working Principle:

The SIT9005ACB1H-18DN utilizes a MEMS-based VCXO system in which a precision quartz crystal vibrates along its axis and is controlled and maintained by an integrated ASIC. The ASIC accelerates or decelerates the crystal\'s frequency by applying a varying voltage to the crystal\'s output. The voltage can be varied by an external control voltage source, allowing the frequency, and therefore the timing, of the output signal to be precisely programmed and maintained.

The benefits of the MEMS-based VCXO system are many. For example, the ASIC eliminates the need for manual frequency trimming, allowing the oscillator to be easily programmed and maintained using an external voltage source. In addition, the VCXO system is highly resistant to voltage spikes, stress and shock, and has superior immunity to mechanical and electromagnetic noises.

Conclusion:

In conclusion, the SIT9005ACB1H-18DN is a robust and reliable programmable oscillator that is well suited for a variety of applications. With its wide frequency range, low phase noise and excellent frequency stability, the SIT9005ACB1H-18DN provides excellent performance while maintaining low cost.