SI5342D-B03452-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5342D-B03452-GM is a factory preprogrammed jitter attenuator and clock multiplier from the Si5342 Rev D family. 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 ultra-low jitter of 90 fs rms and operates within a temperature range of –40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fourth-generation DSPLL technology
• Supports hitless input clock switching between fractionally related clocks
• Includes programmable jitter attenuation bandwidth ranging from 0.1 Hz to 4 kHz
• Features 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 B03452 suffix against the manufacturer's current ordering guide, as this indicates a unique factory preprogrammed configuration. Confirm that the Rev D datasheet applies to this specific revision. Check for end-of-life notifications or product change notices regarding the Si5342 series. Ensure the 44-QFN footprint matches your PCB design requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a low-pin-count solution with two outputs is required. The Si5342D variant specifically limits output frequencies to 350 MHz, distinguishing it from the A/C variants which support up to 1028 MHz. Use ClockBuilder Pro software to verify that the preprogrammed settings meet your specific frequency plan and jitter budget requirements before finalizing the design.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5342 Rev D family, which utilizes MultiSynth and DSPLL technologies. Unlike the Si5345 (10 outputs) and Si5344 (4 outputs), the Si5342 provides only two outputs in a smaller 44-QFN package. The 'D' designation confirms the 350 MHz maximum output frequency capability, while the custom suffix denotes a specific factory-loaded frequency configuration.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5342D-D-GM