SI5345D-B05092-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345D-B05092-GMR is a low-jitter, 10-output clock multiplier and jitter attenuator from Skyworks Solutions. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any frequency combination from any input source. The device supports differential inputs up to 750 MHz and LVCMOS inputs up to 250 MHz. Output frequencies range from 100 Hz to 350 MHz with configurable formats including LVDS, LVPECL, LVCMOS, CML, and HCSL. It operates on a single 1.8 V core supply and includes an integrated loop filter, in-circuit programmable non-volatile memory, and status monitoring features.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fractional and integer synthesis.
• Features ultra-low jitter performance of 90 fs rms for high-speed data transmission applications.
• Supports hitless input clock switching between fractionally related sources without phase offset propagation.
• Includes in-circuit programmable non-volatile memory to ensure known frequency configuration upon 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 confirm package type and tape-and-reel specifications. Confirm that the factory preprogrammed configuration matches the required frequency plan, as custom part numbers are assigned by Skyworks based on ClockBuilder Pro settings.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when ten independent output clocks are required within the 350 MHz limit. Ensure the application requires the specific jitter attenuation characteristics provided by the DSPLL architecture. Verify compatibility with the available serial interface protocols and check if the integrated loop filter meets the noise coupling requirements compared to discrete solutions.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 Rev D family, which also includes variants with different output counts and frequency ranges. The 'D' designation indicates support for output frequencies up to 350 MHz. The '-GMR' suffix denotes the RoHS-compliant tape and reel packaging option for automated surface-mount assembly.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5345D variants such as SI5345D-D-GM or SI5345B-D-GM, depending on whether the specific factory preprogrammed configuration is critical. If the exact frequency plan is not required, generic Si5345 devices can be reconfigured using ClockBuilder Pro software.