SI5347B-B05053-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5347B-B05053-GM is a jitter-attenuating clock multiplier from the Si5347 family, manufactured by Skyworks Solutions Inc. It integrates four independent Dual-Source Phase-Locked Loops (DSPLLs) within a 64-lead QFN package measuring 9x9 mm. The device supports any-frequency conversion with an output frequency range of 0.0001 MHz to 350 MHz. Key electrical specifications include an ultra-low typical jitter performance of 95 fs rms and a core supply voltage of 1.8 V ±5%. It operates within a temperature range of -40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates four independent DSPLLs for flexible timing paths
• Supports hitless input clock switching between synchronized sources
• Features automatic holdover modes to maintain stability during input loss
• Includes in-circuit programmable non-volatile memory for configuration retention

Clock Generators, PLLs, Frequency Synthesizers Applications

• OTN Muxponders and Transponders
• 10/40/100G network line cards
• GbE/10 GbE/100 GbE Synchronous Ethernet (ITU-T G.8262)
• Carrier Ethernet switches
• Broadcast video systems

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet revision to ensure compatibility with required packaging options and factory pre-programming configurations. Confirm that the custom numerical sequence corresponds to the intended frequency plan and operational settings before finalizing procurement orders.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple independent low-jitter clock domains are required from various input sources. Ensure the application utilizes inputs within the specified differential or LVCMOS frequency ranges. Verify that the serial interface configuration aligns with the system's control architecture and that the thermal characteristics of the 64-QFN package suit the enclosure design.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5347 series, which offers quad DSPLL capabilities in a compact form factor. It serves as a high-performance alternative to discrete clock generation solutions, providing maximum integration for complex timing requirements in telecommunications and data infrastructure equipment.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other variants within the Si5347 family such as the SI5347A-D-GM or SI5347C-D-GM, provided the output frequency range and jitter specifications meet the design requirements. Cross-referencing the specific custom programming sequence is essential for functional equivalence.