SI5380A-B-GMR

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The SI5380A-B-GMR clock generator is a high precision, integrated oscillator and clock multiplier device with integrated phase-locked loop (PLL). This device is part of the clock and timing group in the area of clock generators, PLLs, and frequency synthesizers, which are fundamental components in networking, telecommunications, datacom, and consumer applications.

Applications

The SI5380A-B-GMR is designed for applications requiring low jitter, high precision, low drift, and low temperature sensitivity of the output frequency. It is ideal for switching power supplies and optical interfaces, operation in extreme environments, as well as applications requiring excellent stability over temperature. It is also suitable for very wide variety of clock applications, including RF clock applications, in both consumer and industrial products.

In general, the SI5380A-B-GMR offers very low output jitter, excellent control of setup and hold timing, precise clock synthesis, fail-safe output trimming, and extensive software control. It is particularly suited for applications in which precise frequency and timing stability is required in order to ensure precise accuracy and maximum system performance.

Working Principle

The SI5380A-B-GMR works by driving an external oscillator to generate a high frequency clock source. This clock source is then fed into an integrated PLL (phase locked loop), which locks onto the source and multiplies the frequency to whatever output frequency is desired. The frequency multiplication is achieved by pre-programming the SI5380A-B-GMR with the desired frequency multiplier ratio.

In addition to the frequency multiplication capability, the device also features a wide range of features, such as power fail protection, frequency adjustment via temperature coefficient trimming, and extended frequency range. The SI5380A-B-GMR is also capable of synchronizing output signals with external system clocks via its integrated sync-in and sync-out ports.

The integrated PLL also provides an advanced feature, known as pulse shaping. This feature allows the user to unlock the frequency output of the oscillator, while maintaining the same waveform characteristics of the original waveform. This provides superior stability and accuracy to the output signal, ensuring reliable and precise operation.

Conclusion

The SI5380A-B-GMR is an advanced clock generator and multiplier which offers numerous features and capabilities for high-precision and accuracy operation. Its wide range of features, such as frequency adjustment via temperature coefficient trimming, and extended frequency range, make it suitable for use in multiple applications. Its integrated PLL provides a pulse-shaping capability which ensures superior stability and accuracy of the output signal, making it a great choice for applications requiring precise frequency and timing stability.

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