SI5335D-B02291-GMR

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SI5335D-B02291-GMR is a highly-integrated, 2.8V to 3.3V PLL-based clock generator. It integrates a low jitter, auto-ranging clock synthesizer and integrated jitter attenuators and a dual output, selectable spread-spectrum clock generator. It is designed to generate or distribute low-jitter clock signals for applications such as processor/memory/disk controllers, microcontrollers, FPGAs, DSPs, and High-Speed Interfaces (HSI). The device is also suitable for other digital and mixed-signal application fields such as audio, video, and digital baseband.

The SI5335D-B02291-GMR offers the capability to generate different clock frequencies from a single reference clock by taking advantage of the embedded PLLs and clock dividers. It integrates multiple selectable spread spectrum frequency dividers, two selectable spread spectrum sources, and two selectable spread spectrum clock outputs. This allows the device to generate a wider range of clock frequencies and make them more suitable for a variety of applications.

The working principle of the SI5335D-B02291-GMR involves the usage of phase-locked loops (PLLs) and clock dividers. A PLL consists of a phase detector, a loop filter, and a voltage-controlled oscillator (VCO). The PLL divides the reference clock into two signals- the feedback clock and the divided clock, which are both phase-locked to the reference clock. The divided clock is generated by the VCO and is phase-locked to the reference clock by the phase detector. The output of the divided clock is then fed back to the phase detector, where it is phase-detected with the reference clock and then sent to the loop filter. The loop filter adjusts the voltage supplied to the VCO, thus creating a stable output frequency.

The SI5335D-B02291-GMR also has integrated jitter attenuators and a dual output, selectable spread-spectrum clock generator. The integrated jitter attenuators improve the signal quality by removing or reducing unwanted jitter from the reference signals before the signal is passed to the PLLs. The dual output, selectable spread-spectrum clock generator creates two signals from the same reference clock. This allows for the configuration of different output frequencies from the same reference clock. The spread spectrum generator also reduces EMI noise.

In summary, the SI5335D-B02291-GMR is a highly integrated, 2.8V to 3.3V PLL-based clock generator that is designed for applications such as processor/memory/disk controllers, microcontrollers, FPGAs, and high-speed interfaces. It utilizes PLLs, clock dividers, integrated jitter attenuators, and a dual output, selectable spread-spectrum clock generator to generate and distribute low-jitter clock signals. This makes it an ideal choice for a variety of digital and mixed-signal applications.

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