SI5367C-B-GQ

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SI5367C-B-GQ is a clock generator and jitter attenuator designed for precise frequency generation. It is a highly integrated silicon solution comprised of a phase-locked loop (PLL), dual linear voltage controlled oscillators (VCOs), crystal oscillator buffers, jitter attenuator and a fractional-N synthesizer (FNS). All these features and more make the device perfectly suitable for applications demanding high clock accuracy and jitter attenuation such as networking, storage, serial bus, and FPGA/ASIC designs. The device itself is small and compact, with a power consumption of under 1W.

The SI5367C-B-GQ’s most important and versatile feature is its PLL. The device includes a voltage controlled oscillators (VCO) that is used to synthesize and generate the output clock frequencies. This VCO can be driven using either an external reference or from one of the two internal sources, allowing for a high degree of accuracy and flexibility in applications. The output of the VCO is then fed back into the PLL’s loop, which then enables the device to operate as a frequency synthesizer. By typically using a fractional-N frequency synthesizer, the output of the device is capable of producing a clock much more precise than that of a traditional crystal oscillator.

In addition to the PLL, the device also features two outstanding jitter attenuators. The first of these is the Passive Loop Filter (PLF) which enables the device to reject unwanted frequencies while providing feedback stabilization. The second is the set of digital circuit techniques combined in the Dual Digital Delay Line (DDDL) that helps reduce transmission jitter by introducing a range of small random delays to the output data. These two features ensure an extremely low jitter output clock, making it ideal for use in applications such as high speed networking or communications.

Overall, the SI5367C-B-GQ is an excellent choice for applications that require high precision frequency generation and jitter attenuation. The inclusion of VCOs, crystal oscillator buffers, and both passive and digital jitter attenuators makes it a powerful and compact solution for both previous and next generation technology solutions. By using the SI5367C-B-GQ, designers can now achieve the highest level of clock accuracy and jitter attenuation without having to worry about complex circuitry or large space requirements.

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