SI5342D-B05277-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5342D-B05277-GMR is a jitter attenuator and clock multiplier from the Si5342 Rev D family, manufactured by Skyworks Solutions Inc. It features four inputs and two outputs housed in a 44-QFN (7x7 mm) package. The device supports differential input frequencies from 8 kHz 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 supply of 3.3 V ±5%, with an operating temperature range of –40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Combines fourth-generation DSPLL and MultiSynth technologies for any-frequency generation and jitter attenuation
• Supports free-run, synchronous, and holdover modes with automatic or manual input clock switching
• Features fully integrated loop filter and digitally programmable jitter attenuation bandwidth
• Includes in-circuit programmable non-volatile memory for known frequency configuration at 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 the manufacturer's current documentation to confirm tape-and-reel packaging and factory preprogramming status. Ensure compatibility with ClockBuilder Pro software for configuration. Check for recent product change notices regarding package or electrical parameter updates before finalizing procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when two output clocks are required within the 350 MHz limit. Verify that the application requires the specific jitter performance and holdover capabilities provided by the Si5342 Rev D architecture. Confirm that the system design accommodates the 44-QFN 7x7 mm footprint and the necessary external crystal components for optimal jitter performance.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D family of jitter attenuators. The Si5342 variant specifically provides four inputs and two outputs, distinguishing it from the four-output Si5344 and ten-output Si5345 models. All variants share the same underlying DSPLL and MultiSynth technology platform.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5342B-D-GM is listed as a similar replacement option.