SI5345A-D06668-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345A-D06668-GMR is a factory preprogrammed, 10-output jitter attenuator and clock multiplier from the Si5345 family. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any combination of output frequencies from any input frequency. The device supports integer and fractional synthesis modes with an output frequency range up to 1028 MHz for differential outputs. It features ultra-low jitter performance of 90 fs rms and meets ITU-T G.8262 SyncE requirements. The component operates within a temperature range of -40°C to +85°C and is housed in a 64-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using integer and fractional synthesis modes
• Features ultra-low jitter performance of 90 fs rms with digitally programmable jitter attenuation bandwidth
• Supports hitless input clock switching, free-run, synchronous, and holdover modes of operation
• Includes in-circuit programmable non-volatile memory (NVM) for known power-up 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 factory preprogrammed configuration associated with the numerical suffix against the design requirements. Confirm that the ordering part number matches the required output frequency plan and synthesis mode. Ensure compatibility with the I2C or SPI serial interface used for status monitoring and control.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this variant when a fixed, factory-configured solution is preferred over field-programmable devices. The 'A' designation indicates support for integer and fractional synthesis modes up to 1028 MHz. Verify that the 64-QFN package dimensions fit the PCB land pattern and that the operating temperature range meets environmental specifications.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 family of jitter attenuators. The Si5345A variant specifically supports both integer and fractional frequency synthesis modes, distinguishing it from the C and D variants which are limited to integer-only operations. All family members share the same 64-QFN package and core architecture.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5345A-Dxxxxx-GM where xxxxx represents the specific preprogrammed configuration sequence.