SI5368A-B-GQ

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The SI5368A-B-GQ from Silicon Labs is a clock generator, PLL, frequency synthesizer, and oscillator that has been designed to meet the ever-growing demand for higher performance with low power. This versatile device provides a range of frequency and timing resolution that makes it well-suited to diverse applications.

The clock generator, PLL, frequency synthesizer, and oscillator uses a wide variety of synchronization methods to ensure that clock rates, down to the fraction of a hertz, are accurately maintained across multiple domains. The SI5368A-B-GQ utilizes three output banks with programmable outputs spanning a wide range of frequenciesfrom 6.93 MHz through 156.25 kHz.

The device can be synchronized internally to the system clock or externally by a dedicated reference clock. Depending on the environment, the device is capable of locking to a wide range of reference sources. For clock synchronization between multiple devices in a system, the SI5368A-B-GQ provides a bridging pinout consisting of three reference and three synchronization inputs.

The device supports a range of additional features designed to further enhance clock stability and reduce jitter. For example, a power cycle holdover circuit compensates for slowly wandering clocks, while an optional noise-suppressing filter provides dedicated jitter cleaning. The SI5368A-B-GQ also includes an integrated low-noise oscillator and several factory-programmed settings that make it easier to configure the device for a specific application.

The SI5368A-B-GQ is optimized to reduce effects of temperature, power supply noise, load manipulation, and system switching on the phase noise and jitter performance. The device utilizes a variety of digital phase-locked loops, on-chip temperature sensors, power monitors, and low-noise analog circuits to provide optimal performance. The device also employs proprietary dynamic reconvergence and on-board calibration capabilities for more efficient frequency and phase tuning.

The SI5368A-B-GQ provides a one-stop solution for many of the clock and timing requirements of modern applications. The device is well-suited for a variety of complex designs, including reference generators for synchronous clocks, sync-clocking in multi-processor systems, fault tolerant clock systems, and frequency synthesizers for data acquisition and modulation-demodulation applications. The device also provides ideal solutions for telecommunications, data storage, instrumentation, and interface applications.

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