SIT8009BCR31-33N

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Programmable Oscillators

Programmable oscillators are a type of electronic oscillators used to generate oscillating signals of different frequencies. These oscillators are able to generate signals of different frequencies and are usually used in timing applications as well as frequency synthesis. The SIT8009BCR31-33N is one such programmable oscillator.

Application Field

The SIT8009BCR31-33N can be used in a wide range of applications, including automotive, industrial and telecom. It is ideal for timing applications requiring the stability and accuracy of the output frequency over a wide range of temperatures and supply voltages. The oscillator is also suitable for frequency synthesis applications, for example, for mobile radios and cellular phones.

Working Principle

The SIT8009BCR31-33N programmable oscillator is a frequency-control device that utilizes a differential-mode Phase-Locked Loop (PLL) synthesis technique. The oscillator includes an on-chip voltage-controlled oscillator (VCO), a programmable frequency divider and loop filter components, a differential-mode phase detector and an automatic calibration function. The programmable frequency divider is adjustable using an external Digital Storage Demonstration Circuit. The loop filter is used to set the loop bandwidth and the phase detector to detect the phase difference between the VCO output and the reference frequency.

The differential-mode phase detector compares the phase differences between the two VCO outputs and adjusts the programmable frequency divider accordingly. The circuit also contains a filter circuits to reduce jitter and improve stability of the output frequency. The automatic calibration feature calibrates the output frequency to a specific value, allowing for improved accuracy and repeatability. The VCO and the phase detector are controlled by an analog voltage, generated by a microcontroller, an FPGA, or other digital devices.

The SIT8009BCR31-33N programmable oscillator can operate in a wide range of frequencies, from 25MHz to 250MHz. It has the capability to generate frequencies up to 1 gigahertz. The device is available in a variety of packages and has a wide operating temperature range of -20°C to +85°C.

In summary, the SIT8009BCR31-33N programmable oscillator is a versatile frequency-control device that has a wide range of applications, from automotive and industrial systems to telecommunications applications. It is ideal for timing applications requiring the stability and accuracy of the output frequency and is suitable for frequency synthesis applications such as mobile radios and cellular phones.

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