SI5345B-B03841-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345B-B03841-GM is a factory preprogrammed clock synthesizer and jitter attenuator from the Si5345 family. It features four inputs and ten outputs, supporting output frequencies up to 350 MHz with integer and fractional synthesis modes. The device utilizes fourth-generation DSPLL technology to achieve ultra-low jitter performance of 90 fs rms. It operates within a temperature range of -40°C to +85°C and is housed in a 64-QFN package measuring 9x9 mm.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using integer and fractional synthesis.
• Integrates fourth-generation DSPLL and MultiSynth technologies for high-performance jitter attenuation.
• Supports free-run, synchronous, and holdover modes with automatic or manual input clock switching.
• Features fully integrated on-chip loop filter and digitally programmable jitter attenuation bandwidth.

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 configuration associated with the B03841 suffix against the official Skyworks datasheet or ClockBuilder Pro software. Factory preprogrammed devices are assigned unique numerical sequences representing their specific configuration. Confirm that the preprogrammed settings align with the target application requirements before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when an ultra-low jitter solution is required for applications demanding any-frequency generation up to 350 MHz. The Si5345B variant specifically supports integer and fractional synthesis modes. Ensure the design accommodates the 64-QFN package dimensions and the specified operating temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5345 Rev D family of jitter attenuating clock multipliers. The 'B' designation indicates support for output frequencies up to 350 MHz, distinguishing it from the 'A' and 'C' variants which support higher frequencies. The 'D' suffix denotes the Rev D hardware revision. The 'GM' suffix indicates a lead-free, RoHS-6 compliant package.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other factory preprogrammed parts within the Si5345B-D-GM series, such as SI5345B-D08764-GM or SI5345B-D10385-GM, provided their preprogrammed configurations match the system requirements. Generic blank prototyping devices like SI5345B-A-GM can be used if in-circuit programming capabilities are available.