SI5345B-B05606-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345B-B05606-GMR is a low-jitter, 10-output clock synthesizer and jitter cleaner manufactured by Skyworks Solutions. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any frequency combination from any input source. The device supports differential inputs up to 750 MHz and LVCMOS inputs up to 250 MHz. Output frequencies range from 100 Hz to 350 MHz for the Si5345B variant. It features programmable signal amplitudes compatible with LVDS, LVPECL, LVCMOS, CML, and HCSL standards. 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 fractional and integer synthesis.
• Features ultra-low jitter performance of 90 fs rms for high-speed networking applications.
• Supports hitless input clock switching between fractionally related clocks without phase offset propagation.
• Includes in-circuit programmable non-volatile memory (NVM) for automatic 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

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 pre-programming status. Confirm RoHS compliance and lead times directly with authorized distributors or Skyworks Solutions, Inc., as availability may vary by region.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model for applications requiring 10 outputs with frequencies capped at 350 MHz. Ensure the design accommodates the 64-QFN package dimensions. Verify that the required output voltage levels (LVDS, LVPECL, etc.) match the programmable amplitude settings available in the ClockBuilder Pro software.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5345 family of jitter attenuating clock multipliers. It shares the same core architecture as the Si5345A and Si5345C but is specifically configured for output frequencies up to 350 MHz. The 'GMR' suffix indicates a tape-and-reel packaging option suitable for automated surface-mount assembly.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements include other Si5345 variants such as SI5345A-D-GMR or SI5345C-D-GMR, provided the output frequency requirements are met. Verify pin compatibility and register configurations when substituting.