SI5338C-B06907-GMR

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The SI5338C-B06907-GMR is a clock/timing application specific product designed and manufactured by Silicon Labs, a leader in high-performance, analog-intensive, mixed-signal ICs. This product\'s application field and working principle will be explained further in this article.

Application Field

The SI5338C-B06907-GMR is designed for FPGA applications. It supports four different pre-programmed output frequencies which can be used for clocking FPGA\'s, DSP\'s, and microcontrollers. The outputs are configurable and frequencies available range from 0.0625MHz to 250MHz. It has a low jitter of <1ps and a wide input frequency range from 10MHz to 1300MHz, making it suitable for many different applications. It also features an integrated PLL and VCO which allows for precise frequency control.

The SI5338C-B06907-GMR can be used in digital broadcasting, communications infrastructure, optical networks, broadcast equipment, computing, industrial automation, and other similar applications.

Working Principle

The SI5338C-B06907-GMR utilizes a phase-locked loop (PLL) to generate precise output frequencies. The PLL is comprised of three main components; a reference crystal oscillator, a phase frequency detector, and a voltage controlled oscillator. The reference crystal oscillator provides a stable and accurate input frequency to the PLL. The frequency detector then compares the input frequency with the output frequency generated by the VCO and adjusts the VCO\'s frequency accordingly. This adjusting occurs until the input and output frequencies match, at which point the PLL is said to be operating "in lock".

Once the PLL is in lock, the VCO can be adjusted electrically with a control voltage to modify the output frequency of the VCO, which is then divided and routed to the various outputs. The SI5338C-B06907-GMR also features a programmable, multi-mode slew rate controller which ensures that the outputs transition slowly causing less switching noise emission. This combination of a stable reference oscillator, accurate frequency control, and programmable slew rate controller makes the SI5338C-B06907-GMR an ideal choice for a variety of clocking applications.

Conclusion

The SI5338C-B06907-GMR is a versatile clock/timing application specific device designed for FPGA applications. This device utilizes a phase-locked loop which allows for precise frequency control as well as programmable slew rate control which reduces switching noise from the outputs. The large input frequency range and low jitter of <1ps make it ideal for a variety of applications such as digital broadcasting, communications infrastructure, optical networks, broadcast equipment, computing, industrial automation, and more. This device offers a great solution for those looking for a reliable, high-performance clock/timing solution.

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