SI5342D-B05470-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5342D-B05470-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 signals and up to 250 MHz for LVCMOS. It achieves an ultra-low jitter of 90 fs rms and operates within a temperature range of -40°C to +85°C. Power supplies include VDD at 1.8V ±5% and VDDA at 3.3V ±5%.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Combines fourth-generation DSPLL and MultiSynth technologies for any-frequency clock generation.
• Supports free-run, synchronous, and holdover modes with automatic or manual input switching.
• Features digitally programmable jitter attenuation bandwidth for application-level optimization.
• Includes in-circuit programmable non-volatile memory for known power-up frequency 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 official Skyworks documentation to confirm tape and reel packaging and factory preprogramming status. Confirm RoHS compliance and lead times directly with authorized distributors. Ensure the part number matches the exact Rev D silicon revision required for your design.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when two output clocks are sufficient for the system design. Compare with Si5344 for four outputs or Si5345 for ten outputs if higher channel counts are needed. Verify that the 350 MHz maximum output frequency meets the target application requirements before finalizing the component choice.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5342 Rev D series, which integrates DSPLL and MultiSynth technologies. It is designed for high-performance jitter attenuation and clock multiplication. The device allows flexible input/output configurations and supports various serial interfaces for programming via ClockBuilder Pro software.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5342B-D-GM offers similar functionality but may differ in output frequency ranges or specific feature sets. Verify electrical specifications and pin compatibility before substitution. Consult the manufacturer's cross-reference guide for approved alternatives.

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency for the Si5342D?

The maximum output frequency for the Si5342D variant is 350 MHz for differential outputs.

Does the device support glitchless input switching?

Yes, the device supports glitchless input switching between input clock frequencies that are up to ±500 ppm apart.

How is the loop filter implemented in this device?

The loop filter is fully integrated on-chip, eliminating the risk of noise coupling associated with discrete solutions.