SIT8008BIU7-25N

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Programmable oscillators refer to a variety of oscillators with programmable frequencies that can be integrated into a micro-programmed system. They usually consist of either mechanical or crystal tuning elements such as microscopes, lubricants or quartz crystals, together with adjustable resonance capacitors and/or inductors, or a combination of both. SIT8008BIU7-25N is a special programmable oscillator which could be widely applied in the devics, especially high-integrity systems, due to its professional features in application field and working principle.

Application field

SIT8008BIU7-25N is a professionally-designed programmable oscillator with a wide frequency range of 0.3Hz to 250MHz and very stable performance. It is ideally suited for applications within the industrial and automotive market segments such as building automation, instrumentation, and car audio systems. It is also suitable for use in laboratory equipment, test equipment, and medical applications. Its high-grade quartz crystal ensures top-notch reliability and performance while its wide frequency range ensures compatibility with a wide variety of devices and applications.

In addition to its versatility and wide frequency range, SIT8008BIU7-25N has a number of useful features specifically designed for automotive applications. It utilizes both on-chip and external sensors to allow for precise and stable tuning over a wide range of temperatures, from -40°C to +125°C. The integrated USB interface also allows for easy programming and configuration. For example, it can quickly be programmed to immediately detect and set the optimal frequency for the system it is installed in.

Working principle

SIT8008BIU7-25N is designed to function on a proprietary algorithm that incorporates both a quartz crystal resonator and a digital driver circuitry. The quartz crystal resonator utilizes a specialized ratio between an inductor and a capacitor to generate a precise frequency at a given set of conditions. The digital driver circuitry is responsible for controlling the frequency of the oscillator by utilizing an Alternate Phase-Locked Loop (APLL) to adjust the frequency in real time. This APLL allows the device to maintain a precise frequency over a wide range of temperatures and other environmental conditions.

The APLL works by monitoring the input signal and compares it to an internal reference clock. If the actual measured frequency diverges from the desired frequency, the APLL will adjust the ratio of the inductor and capacitor to correct the frequency. In this way, the chip can accurately maintain a frequency with a few parts-per-million (ppm) of accuracy.

SIT8008BIU7-25N also incorporates power saving technologies such as Digital Delay-Locked Loop (DDLL) and Asynchronous Clock Free Running (ACFR). In DDLL mode, the oscillator will reduce its power consumption by only activating the quartz crystal when an input signal is present and will reduce the crystal’s power consumption further when the signal frequency is constant. Similarly, in ACFR mode, the oscillator will reduce the crystal’s power consumption whenever the frequency of the input signal is steady for a predetermined amount of time.

SIT8008BIU7-25N is a reliable and versatile programmable oscillator with a wide range of capabilities, making it suitable for a wide range of applications. Its reliable and accurate performance makes it a perfect choice for automotive, industrial, and medical applications. Its features such as power saving technologies and easy programming make it even more attractive to its intended users.

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