SI5350A-B03491-GT

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The SI5350A-B03491-GT is a clock/timing IC used in a variety of applications, primarily as a clock generator, phase-locked loop (PLL), or frequency synthesizer. It is specially designed to meet the demands of mission-critical applications, including power utility, data communications, medical and instrumentation, military, and aerospace. The SI5350A-B03491-GT is well suited to provide a high-quality, frequency-flexible source of synchronization with wide-ranging jitter performance – both low-noise and low-phase noise.

The SI5350A-B03491-GT utilizes a programmable fractional-N PLL, allowing large frequency range support for both output frequencies and input reference frequencies. A versatile clock distribution network allows for ease of circuit integration, reducing time-to-market, and significantly reducing board design complexity. The device is also fully self-calibrating, requiring no user-calibration, enabling highly reliable operation in production.

The SI5350A-B03491-GT’s main features include 50MHz frequency synthesis, a fast input reference frequency range of 100kHz to 1GHz, 6 clock outputs, a robust jitter attenuator with programmable low-pass filters, low-noise and low-phase-noise jitter performance, fast frequency switching regardless of the input reference, and fast lock and hold times. In addition, the SI5350A-B03491-GT is optimized for low power consumption and consists of many integrated clock monitoring functions.

The SI5350A-B03491-GT has many application fields. It can be used for communications, data storage, instrumentation, automation, entertainment and audio, military, and industrial applications. The device is suitable for Optical Network Units (ONUs), data routers, network switches, integrated base stations, set-top boxes, server components, and IoT applications as well as many more. For military, the SI5350A-B03491-GT is used in hardened conditions in unmanned aerial vehicles, avionics control systems, and mission-critical military applications.

The SI5350A-B03491-GT works by generating a cycle of high-frequency clock pulses that are phase-locked to a reference signal. This phase-locked loop (PLL) produces a digital signal that can be used to synchronize the oscillators on large circuits. The device also offers a versatile clock distribution network so that the output clock signals can be routed to multiple load destinations, offering a high level of flexibility and reducing the design complexity.

In the SI5350A-B03491-GT, the PLL is controlled by the digital phase-frequency detector (DFPD). The DFPD detects the phase difference and frequency difference between two signals and uses the information to adjust the output frequency of the oscillator. The PLL also takes into account jitter that may be present in the input signal and maintains a consistent signal for its output. This ensures accurate and stable signal synchronization when transferring data between multiple components.

The SI5350A-B03491-GT also contains an integrated programmable frequency synthesizer, allowing for seamless switching of output clock frequencies without any manual intervention. This allows for greater flexibility for applications that require a constant clock signal in response to changing conditions. The device is also versatile enough to provide reliable and stable clock signals for mission-critical applications and can support a wide range of clock frequencies.

Overall, the SI5350A-B03491-GT is an extremely versatile clock/timing IC which is suitable for a wide range of applications, including communications, data storage, instrumentation, automation, industrial, military, and aerospace. Its PLL design and integrated frequency synthesizer allow for a high-quality frequency-flexible source of synchronization with low-noise and low-phase noise jitter performance. In addition, the SI5350A-B03491-GT\'s robust jitter attenuator and integrated clock monitoring features make it useful for a range of mission-critical applications.

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