SI5344D-B05193-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5344D-B05193-GMR is a low-jitter, four-output clock synthesizer and jitter attenuator from Skyworks Solutions. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any frequency combination up to 350 MHz from any input frequency. The device features an integrated loop filter, in-circuit programmable non-volatile memory for known power-up configurations, and supports free-run, synchronous, and holdover modes. It accepts differential inputs from 8 kHz to 750 MHz or LVCMOS inputs from 8 kHz to 250 MHz. Outputs are configurable as LVDS, LVPECL, LVCMOS, CML, or HCSL with programmable amplitude. The component operates within a temperature range of -40°C to +85°C and is housed in a 44-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using integer and fractional synthesis.
• Features ultra-low jitter performance of 90 fs rms with digitally programmable jitter attenuation bandwidth.
• Supports hitless input clock switching, automatic/manual selection, and glitchless on-the-fly output frequency changes.
• Includes in-circuit programmable non-volatile OTP memory and status monitoring for LOS, OOF, and LOL.

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 'GMR' indicates tape and reel packaging rather than tray packaging when sourcing this part number. Confirm that the numerical sequence 'B05193' corresponds to the intended factory preprogrammed configuration, as custom part numbers are assigned by Skyworks based on ClockBuilder Pro software settings. Ensure compatibility with the required serial interface protocol.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the Si5344D variant specifically for applications requiring output frequencies up to 350 MHz. Verify that the input signal type matches the supported differential or LVCMOS ranges. Consider the need for external crystal versus reference clock based on jitter performance requirements and holdover stability needs. Use ClockBuilder Pro software to determine the optimal loop bandwidth and Fastlock settings for the target application.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5344 Rev D family, which combines fourth-generation DSPLL and MultiSynth technologies. It is designed for high-performance clock generation and jitter attenuation. The Si5344D is distinguished by its 350 MHz maximum output frequency capability, contrasting with other variants like the Si5344A which support higher frequencies up to 1028 MHz.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5344D-D-GM