SI5344D-B04893-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5344D-B04893-GMR is a factory preprogrammed clock synthesizer and jitter cleaner from the Si5344 Rev D family. It features four inputs and four outputs, supporting any-frequency generation up to 350 MHz with integer and fractional synthesis modes. The device utilizes fourth-generation DSPLL technology to achieve ultra-low jitter performance of 90 fs rms. It operates on a 1.8 V core voltage and includes in-circuit programmable non-volatile memory for configuration storage.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using integer and fractional synthesis
• Integrates fourth-generation DSPLL technology for ultra-low jitter attenuation
• Supports hitless input clock switching between fractionally related sources
• Includes in-circuit programmable non-volatile memory for persistent configuration

Clock Generators, PLLs, Frequency Synthesizers Applications

• OTN muxponders and transponders
• 10/40/100 G networking line cards
• GbE/10 GbE/100 GbE Synchronous Ethernet (ITU-T G.8262)
• Carrier Ethernet switches
• SONET/SDH line cards

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific numerical sequence within the ordering part number to confirm the exact factory preprogrammed configuration. Ensure compatibility with the target application's frequency requirements before procurement, as custom configurations are unique to each part number.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when a fixed, preconfigured clock solution is required without external programming. Verify that the 350 MHz maximum output frequency meets system needs. Confirm that the 44-QFN package dimensions fit the PCB layout constraints.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5344 Rev D series, which offers four inputs and four outputs in a 7x7 mm 44-QFN package. It shares architectural similarities with the Si5345 and Si5342 but provides a balanced feature set for mid-density clock distribution applications requiring high precision.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5344D variants with different preprogrammed sequences or the generic Si5344D-D-GMR if reprogramming capability is available.