SI5345D-B04246-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345D-B04246-GM is a clock synthesizer and jitter cleaner from Skyworks Solutions. It features 10 outputs with a maximum output frequency of 350 MHz. The device supports CML, HCSL, LVCMOS, LVDS, and LVPECL output levels. Input levels include differential and LVCMOS, with a maximum input frequency of 750 MHz. Operating voltage ranges from 1.71 V to 3.47 V. It functions within a temperature range of -40 °C to +85 °C. The component is housed in a QFN-64 package and utilizes SMD/SMT mounting.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fourth-generation DSPLL and MultiSynth technologies.
• Features ultra-low jitter performance of 90 fs rms with digitally programmable jitter attenuation bandwidth.
• Supports hitless input clock switching, free-run, synchronous, and holdover modes of operation.
• 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 ordering suffix against the manufacturer's current documentation to ensure compatibility with required packaging options such as tape and reel or tray configurations. Confirm that the factory preprogrammed configuration matches the intended application requirements before finalizing procurement orders.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when ten independent output clocks are required with frequencies up to 350 MHz. Ensure the design accommodates the QFN-64 package dimensions and thermal characteristics. Verify that the system power supply meets the specified voltage range and that the operating environment falls within the industrial temperature limits defined for this part number.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 family of jitter attenuators and clock multipliers. It shares core architectural features with other variants in the series but is distinguished by its specific output count and frequency capabilities. The device integrates a digital phase-locked loop and multiple synthesizers into a single compact package.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes within the same family include the SI5345B-D-GM and SI5345A-D-GM. These alternatives offer similar functionality but may differ in maximum output frequency ranges or synthesis modes. Verify pinout compatibility and electrical specifications before implementing any cross-model replacements.