SI5345D-B04204-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345D-B04204-GMR is a factory preprogrammed clock synthesizer and jitter cleaner from the Si5345 Rev D family. It features four inputs and ten outputs, supporting output frequencies up to 350 MHz using integer synthesis modes. The device utilizes fourth-generation DSPLL technology for ultra-low jitter performance of 90 fs rms. It operates on a core voltage of 1.8 V and an analog supply of 3.3 V, housed in a 64-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using integer synthesis
• Integrates fourth-generation DSPLL and MultiSynth technologies for jitter attenuation
• Supports free-run, synchronous, and holdover modes with automatic or manual input switching
• Features fully integrated loop filter and digitally programmable jitter attenuation bandwidth

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 factory preprogrammed configuration associated with the suffix B04204 against the design requirements. Confirm that the integer-only synthesis mode meets the target frequency plan. Ensure the serial interface and NVM programming protocols align with the system controller capabilities.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when integer synthesis is sufficient for the application's frequency requirements. The 350 MHz maximum output frequency distinguishes it from the A and C variants which support higher frequencies or fractional synthesis. Verify compatibility with LVDS, LVPECL, LVCMOS, CML, and HCSL output standards.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 Rev D series, which combines DSPLL and MultiSynth technologies. The 'D' variant specifically supports integer synthesis modes with a maximum output frequency of 350 MHz, contrasting with the 'A' and 'C' variants that offer fractional synthesis or higher frequency ranges.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5345B-D-GMR

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency for the SI5345D variant?

The SI5345D variant supports a maximum output frequency of 350 MHz.

Does the SI5345D support fractional synthesis?

No, the SI5345D supports only integer synthesis modes.

How is the device configured if it is factory preprogrammed?

Factory preprogrammed devices download default register values and configuration data from non-volatile memory upon power-up, ensuring a known frequency configuration without external programming.