SI5342D-B06120-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5342D-B06120-GM is a jitter attenuator and clock multiplier from the Si5342 Rev D family, manufactured by Skyworks Solutions Inc. It features four differential or single-ended inputs and two highly configurable outputs within a 44-QFN (7x7 mm) package. The device supports any-frequency generation with an output range of 0.001 MHz to 350 MHz for the 'D' variant. Key electrical parameters include an ultra-low jitter performance of 90 fs rms, a core supply voltage (VDD) of 1.8 V ±5%, and an analog supply (VDDA) of 3.3 V ±5%. It operates 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 any-frequency clock generation and jitter attenuation.
• Supports free-run, synchronous, and holdover modes with automatic or manual input clock switching capabilities.
• Features fully integrated on-chip 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 factory preprogrammed configuration associated with the B06120 suffix against the official Skyworks ordering guide or datasheet errata. Confirm that the required evaluation board, such as the Si5342-D-EVB, is available for design validation. Ensure compliance with RoHS-6 standards and check for any product change notifications affecting this specific revision.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the Si5342D variant when the application requires output frequencies up to 350 MHz. Choose this model over the Si5342A or Si5342B if the specific jitter attenuation characteristics and frequency synthesis modes defined in the Rev D datasheet are required. Verify that the 44-QFN package dimensions fit the PCB land pattern constraints.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D family of jitter attenuating clock multipliers. The Si5342 specifically offers two outputs, distinguishing it from the four-output Si5344 and ten-output Si5345 models. All variants share the same underlying DSPLL and MultiSynth architecture but differ in pin count and output capacity.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements within the same family include the Si5342A-D-GM, Si5342B-D-GM, and Si5342C-D-GM, depending on whether higher frequency ranges or integer-only synthesis are needed. Cross-family replacement with the Si5344 or Si5345 requires accounting for additional unused outputs and potential software reconfiguration.