SI5345B-D06642-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345B-D06642-GMR is a jitter attenuator and clock multiplier from the Si5345 family, manufactured by Skyworks Solutions. It features four inputs and ten outputs housed in a 64-QFN package. The device supports integer and fractional synthesis with output frequencies up to 350 MHz. Input frequency ranges include differential (8 kHz to 750 MHz) and LVCMOS (8 kHz to 250 MHz). Operating voltages are VDD at 1.8 V ±5% and VDDA at 3.3 V ±5%. It operates within a temperature range of –40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fourth-generation DSPLL and MultiSynth technologies.
• Features ultra-low jitter performance of 90 fs rms and programmable jitter attenuation bandwidth ranging from 0.1 Hz to 4 kHz.
• Supports free-run, synchronous, and holdover modes with automatic or manual hitless input clock switching.

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

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory preprogrammed configuration associated with the numerical suffix D06642 against project requirements. Confirm that the GMR suffix corresponds to the required tape and reel packaging format for automated assembly processes.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when output frequencies are constrained to a maximum of 350 MHz. Ensure the design accommodates the 64-QFN 9x9 mm package dimensions and utilizes ClockBuilder Pro software for serial interface programming and NVM configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 Rev D series, which integrates DSPLL and MultiSynth technologies. The 'B' designation indicates support for output frequencies up to 350 MHz, distinguishing it from 'A' and 'C' variants that support higher frequencies or integer-only synthesis.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Compatible replacements within the same family include SI5345A-D-GMR and SI5345C-D-GMR. Verify that alternative part numbers match the required output frequency range and synthesis mode specifications.