SIT8009BCR71-28S

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Programmable Oscillators are electronic devices that can generate precise, accurate and stable frequencies. The SIT8009BCR71-28S is an example of such a device. Its applications and working principles will be discussed in the following sections.

Applications: The SIT8009BCR71-28S is used in a wide variety of applications, including timing, frequency synthesis, and modulation. It can be used as an oscillator to time digital circuits and as a load pull-up in CMOS logic circuits. It can be used to generate precise frequency signals for wireless communication, radar, satellite communication, and Global Positioning System (GPS) applications. In addition, the device can be used for audio and video signal processing and synchronization.

Working Principle: The SIT8009BCR71-28S utilizes an internal temperature compensated crystal oscillator (TCXO) as its basic building block. This TCXO operates on a crystal tuned by electrostatic pull, which allows the device to generate up to 28MHz clock frequencies with temperatures as low as -20℃ and as high as +85℃. This allows for high accuracy and low power consumption, even in demanding environmental conditions. The device also has a 10-bit wide control register, which allows for fine control over the frequency and timings of the device.

The device is programmed either via software lead or via a programming pin. The software lead allows for the direct serial programming through a dedicated SDA pin, while the programming pin allows for connection to a micro-controller for direct programming. An I2C bus is used for this purpose.

The device also has an internal RAM to store the frequency registers, which allows the device to retain the frequency and timing configurations during power loss. This eliminates the need to reprogram the device every time it is powered on.

Conclusion: The SIT8009BCR71-28S is a programmable oscillator that can be used in a wide variety of applications. It utilizes an internal temperature compensated crystal oscillator to generate up to 28MHz clock frequencies with excellent accuracy and low power consumption. The device has a 10-bit wide control register and an internal RAM to store frequency registers, which allows the device to remain configured even during power loss. All of these features make the SIT8009BCR71-28S an ideal choice for precision timing applications.

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