SI5335D-B05998-GM

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The SI5335D-B05998-GM is a device in the Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers range from Silicon Labs. It is an integrated high-performance clock generator and programmable jitter attenuator, optimized for systems that require the most stringent clock performance. The SI5335D-B05998-GM is ideal for low-skew clocking and jitter attenuation of high-speed serial buses and RAM, allowing frequencies up to 3.2 GHz.

Applications

The SI5335D-B05998-GM has a wide variety of applications, including:

• Networking applications such as 10 Gigabit Ethernet
• High-speed data storage and access applications
• Asynchronous clock and data recovery
• High-end multiprocessor core networks
• Telecommunications applications

It is also suitable for use in a variety of other system applications, such as SONET, InfiniBand, Fibre Channel, and USB 3.0.

Working Principle

The working principle of the SI5335D-B05998-GM is based on two core components: a digital phase-locked loop (PLL) and a spread spectrum modulator. The PLL is responsible for synthesizing the desired clock signal and the spread spectrum modulator allows the clock signal to vary within a set range while maintaining its integrity. This combination provides clean, low-skew clock outputs with reduced RFI emissions.

The SI5335D-B05998-GM consists of several input clocks, including a reference clock, a fractional DLL, and a programmable spread spectrum modulator. The PLL takes the reference clock as an input and synthesizes the output clock with the desired frequency and phase accuracy. The fractional DLL is then used to adjust the output frequency to its desired value. The spread spectrum modulator is then used to generate a varying output signal within a predefined range.

In addition to jitter attenuation, the SI5335D-B05998-GM also features programmable polarity and spread spectrum clocks with preset and user-defined profiles. It also supports various reference clock inputs such as the system clock, an external clock, or a high-performance crystal. This allows it to meet the needs of a wide range of applications.

Conclusion

The SI5335D-B05998-GM is a highly integrated clock generator and jitter attenuator that is optimized for systems that require the most stringent clock performance. It is suitable for use in a variety of system applications and enables clean, low-skew clock outputs with reduced RFI emissions. The device consists of a digital PLL, a fractional DLL, and a programmable spread spectrum modulator. It also features programmable polarity and spread spectrum clocks, allowing it to meet the needs of a wide range of applications.

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