SIT9005ACE1H-28SF

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Programmable Oscillators

The SIT9005ACE1H-28SF is a two frequency oscillator specifically designed for use in programmable oscillator applications. It has two separate frequencies, each of which can be set independently. This allows the user to adjust specific frequencies, such as the center frequency during tuning, to match the desired performance parameters for a given application.The main features and specifications of the SIT9005ACE1H-28SF include a frequency range of 8KHz – 100MHz, a voltage control range of 0.5V – 4.5V, and a temperature range of –40°C to +85°C. The SIT9005ACE1H-28SF also offers programmable tuning slope adjustment and the ability to control multiple outputs.The SIT9005ACE1H-28SF is an excellent choice for applications that require precise frequency control and flexibility. It can be used in a variety of applications such as wireless infrastructure, broadcasting and communications systems, medical equipment, smart appliances, automotive electronics, and other programs needing precise frequency control and flexibility.

Working Principle

The SIT9005ACE1H-28SF is based on a voltage-controlled oscillator (VCO) architecture. It uses a low-jitter, temperature-compensated crystal oscillator (TCXO), along with a voltage-controlled resistor (VCR) and a voltage-controlled capacitor (VCC). The combination of the TCXO and the VCR/VCC creates a frequency range of 8kHz to 100MHz.

The VCR and VCC are used to adjust the frequency. The user can adjust the tuning slope with the VCR, a variable resistance circuit that is connected in series with the crystal oscillator. The VCC also provides programmable capacitances which are used to reduce frequency drift over temperature.

The SIT9005ACE1H-28SF is also equipped with a low-power divider that can be used to provide two independent frequencies at each of the two voltage-controlled inputs. This allows the user to easily adjust the frequency of the two outputs to match the required performance parameters.

Conclusion

The SIT9005ACE1H-28SF is a highly versatile, temperature-compensated, programmable oscillator designed for a variety of applications with precise frequency control and flexibility. Its low-jitter TCXO, VCR and VCC design make it well-suited for applications in wireless infrastructure, broadcasting, communications systems, medical devices, smart appliances, and automotive electronics.

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