SI5342D-B04156-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5342D-B04156-GM is a factory preprogrammed jitter attenuator and clock multiplier from the Si5342 Rev D family. It features four differential inputs and two differential outputs housed in a 44-QFN (7x7 mm) package. The device generates any output frequency up to 350 MHz from any input frequency ranging from 8 kHz to 750 MHz. It achieves ultra-low jitter of 90 fs rms using fourth-generation DSPLL technology. Power supply requirements include VDD at 1.8 V ±5% and VDDA at 3.3 V ±5%. Operating temperature range is –40 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 digitally programmable jitter attenuation bandwidth for application-level optimization
• 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 B04156 suffix against Skyworks documentation to confirm the exact preprogrammed frequency plan. Factory preprogrammed devices are assigned unique numerical sequences representing their configuration. Ensure compatibility with ClockBuilder Pro software settings if reconfiguration is required.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model for applications requiring two differential outputs with ultra-low jitter performance. The Si5342 variant provides four inputs and two outputs in a compact 44-QFN package. Verify that the required output frequencies fall within the 350 MHz limit specified for the 'D' series part number.

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 four inputs and two outputs, distinguishing it from the four-output Si5344 and ten-output Si5345 models. All variants share the same core DSPLL and MultiSynth architecture.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5342B-D-GM

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency for the Si5342D?

The maximum output frequency for the Si5342D is 350 MHz.

How does the device handle input clock failure?

The device automatically enters holdover mode when the selected input clock becomes invalid and no other valid inputs are available, using stored historical frequency data.

Can the device switch between input clocks without glitches?

Yes, it supports hitless switching for fractionally related inputs and glitchless switching for inputs up to ±500 ppm apart.