SI5344D-B04805-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5344D-B04805-GMR is a low-jitter, four-output jitter attenuator and clock multiplier from the Si5344 Rev D family. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any frequency combination from any input source. The device supports differential inputs 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 features an ultra-low jitter performance of 90 fs rms, programmable loop bandwidths between 0.1 Hz and 4 kHz, and in-circuit programmable non-volatile memory. The component 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 integer and fractional synthesis modes.
• Provides ultra-low jitter attenuation with a programmable digital loop filter that eliminates discrete noise coupling risks.
• Supports hitless input clock switching, free-run, and holdover modes with automatic or manual selection capabilities.
• Features highly configurable outputs compatible with LVDS, LVPECL, LVCMOS, CML, and HCSL signal standards.

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 factory preprogramming details. Confirm package availability and lead times through authorized distributors. Ensure compliance with RoHS-6 standards and check for any product change notifications related to this revision.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when four independent low-jitter outputs are required with flexible frequency synthesis capabilities. Verify that the application requires the 350 MHz maximum output frequency limit characteristic of the 'D' variant rather than the higher frequency options available in other family members. Ensure the design accommodates the 44-QFN package dimensions.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5344 Rev D series, which integrates fourth-generation DSPLL technology. It serves as a jitter cleaner and clock multiplier designed for high-performance timing applications. The device distinguishes itself by combining integer and fractional synthesis with a fully integrated on-chip loop filter for optimized noise performance.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Consider the SI5344B-D-GMR for similar functionality with potentially different factory programming configurations. Evaluate the SI5344A-D-GMR if higher output frequencies up to 1028 MHz are required. Verify pin compatibility and software configuration requirements before substituting.