SI5345D-B04117-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345D-B04117-GM is a factory preprogrammed clock synthesizer and jitter cleaner from the Si5345 family. It features four inputs and ten outputs in a 64-QFN package. The device generates any combination of output frequencies up to 350 MHz using DSPLL and MultiSynth technologies. It supports differential (8 kHz–750 MHz) and LVCMOS (8 kHz–250 MHz) inputs, with output ranges of 100 Hz to 350 MHz for differential and LVCMOS formats. Operating voltage is 1.8 V ±5% for VDD and 3.3 V ±5% for VDDA. It functions within a temperature range of –40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Combines fourth-generation DSPLL and MultiSynth technologies for ultra-low jitter performance and any-frequency generation.
• Features an integrated loop filter and digitally programmable jitter attenuation bandwidth for optimized application-level performance.
• Supports free-run, synchronous, and holdover modes with automatic or manual hitless input clock switching capabilities.
• Includes in-circuit programmable non-volatile memory to ensure known frequency configuration upon power-up.

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 Skyworks documentation to confirm factory preprogramming details. Confirm package type and temperature range match design requirements. Check current availability status as distribution may vary. Ensure ClockBuilder Pro software compatibility for any potential reconfiguration needs.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when fixed, factory-programmed configurations are required rather than field-programmable units. Verify that the 350 MHz maximum output frequency meets system needs. Ensure the 64-QFN package fits the PCB layout constraints. Confirm that the 1.8 V core voltage and 3.3 I/O supply align with the target platform's power architecture.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 Rev D series, which includes variants like Si5345A-D-GM and Si5345B-D-GM. The 'D' suffix indicates support for integer and fractional synthesis modes with a maximum output frequency of 350 MHz. The 'GM' suffix denotes the lead-free, RoHS-6 compliant 64-QFN package format used across the family.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements include other Si5345D variants such as SI5345D-D-GM or SI5345D-Bxxxxx-GM if custom programming is acceptable. For higher frequency requirements, consider the Si5345A-D-GM. Ensure pinout and package dimensions remain compatible during substitution.