SI5345D-B00002-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345D-B00002-GMR is a clock synthesizer and jitter cleaner from the Si5345 family, manufactured by Skyworks Solutions Inc. It features four inputs and ten outputs housed in a 64-QFN package measuring 9x9 mm. The device supports differential input frequencies up 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 operates on a core voltage of 1.8 V ±5% and an auxiliary voltage of 3.3 V ±5%, with a temperature range of -40 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.
• Supports hitless input clock switching between fractionally related clocks and glitchless on-the-fly output frequency changes.
• Includes in-circuit programmable non-volatile memory (NVM) to ensure known frequency configuration upon power-up.
• Features fully integrated loop filter and digitally programmable jitter attenuation bandwidth for optimized performance.

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 ordering suffix against the manufacturer's current documentation to confirm tape-and-reel packaging and factory preprogramming status. Ensure compatibility with ClockBuilder Pro software versions used for configuration. Confirm RoHS compliance and lead-free status as per the latest datasheet revision before finalizing procurement specifications.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when applications require low-jitter generation up to 350 MHz with ten configurable outputs. Verify that the required output signal formats (LVDS, LVPECL, LVCMOS, CML, HCSL) align with the device capabilities. Consider the integrated NVM feature if in-circuit programming is preferred over external configuration controllers during system initialization.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D family of jitter attenuating clock multipliers. The Si5345 variant specifically provides four inputs and ten outputs, distinguishing it from the Si5344 (four outputs) and Si5342 (two outputs). All variants share similar architectural features including DSPLL technology and MultiSynth dividers.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include other Si5345 variants such as SI5345A-D-GM or SI5345B-D-GM, depending on whether higher frequency ranges or integer-only synthesis are acceptable. Verify pinout and package dimensions remain identical for board-level substitution.