SI5345B-D06387-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345B-D06387-GMR is a 10-output jitter attenuator and clock multiplier from the Si5345 family, manufactured by Skyworks Solutions Inc. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any combination of output frequencies from any input frequency. The device supports differential inputs from 8 kHz to 750 MHz and LVCMOS inputs up to 250 MHz. Output frequencies range from 100 Hz to 350 MHz for differential formats and up to 250 MHz for LVCMOS. It features ultra-low jitter performance of 90 fs rms and meets ITU-T G.8262 EEC Options 1 and 2. The component operates within a temperature range of –40 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 fractional and integer synthesis.
• Features programmable jitter attenuation bandwidth ranging from 0.1 Hz to 4 kHz for optimized performance.
• Supports hitless input clock switching with automatic or manual selection capabilities.
• Includes in-circuit programmable non-volatile memory (NVM) for persistent configuration storage.

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 D06387, as this determines the exact frequency plan and operational parameters. Confirm that the required RoHS compliance and Pb-free status align with project specifications. Ensure the QFN-64 package dimensions are compatible with the target PCB land pattern. Validate that the serial interface requirements match the system controller capabilities.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when high channel count and low jitter are required for synchronous Ethernet applications. The B-series designation indicates a maximum output frequency limit of 350 MHz, which suits most standard networking and telecom needs. Consider the integrated loop filter and NVM features to reduce external component count and simplify board design. Use ClockBuilder Pro software to configure the specific frequency plan and verify compatibility with existing input sources.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D family of jitter attenuators. The Si5345 variant specifically provides four inputs and ten outputs, distinguishing it from the Si5344 (4 outputs) and Si5342 (2 outputs). All variants share the same core DSPLL technology and package options, allowing for scalable design architectures across different channel density requirements.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements within the same family include the Si5345A-D-GMR or Si5345D-D-GMR, provided the output frequency range requirements are met. Verify that the replacement part number includes the necessary factory preprogramming if the original D06387 configuration is critical. Cross-referencing with the Si5344 or Si5342 may require hardware redesign due to pin count differences.