SI5345B-B04134-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345B-B04134-GM is a factory preprogrammed clock multiplier and jitter attenuator from the Si5345 family. It features four inputs and ten outputs, supporting any-frequency generation up to 350 MHz. The device utilizes fourth-generation DSPLL and MultiSynth technologies for ultra-low jitter performance of 90 fs rms. It operates on a 1.8 V core voltage and 3.3 V analog supply, 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.
• Features fully integrated loop filter and digitally programmable jitter attenuation bandwidth.
• Supports free-run, synchronous, and holdover modes with automatic or manual input clock switching.
• Includes in-circuit programmable non-volatile memory 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 ordering suffix against the manufacturer's current documentation to confirm the exact preprogrammed configuration. Factory preprogrammed devices are assigned unique numerical sequences representing their specific settings. Confirm availability status as these parts may be subject to limited supply or special order requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when a fixed, preconfigured clock solution is required without field programming. Ensure the maximum output frequency requirement does not exceed 350 MHz. Verify that the application supports the QFN-64 package dimensions and thermal characteristics. Use ClockBuilder Pro software to determine if a custom preprogrammed variant matches the design needs.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 family of jitter attenuators. The 'B' designation indicates a maximum output frequency limit of 350 MHz, distinguishing it from the 'A' and 'C' variants which support higher frequencies. The 'D' suffix denotes the Rev D datasheet revision. The 'GM' suffix typically indicates a lead-free, RoHS-compliant tape and reel or tube packaging option depending on the specific manufacturing lot.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5345B-D-GM