SI5347A-B03546-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5347A-B03546-GM is a quad DSPLL jitter attenuator featuring four independent phase-locked loops within a 64-lead QFN package. It supports input frequencies from 8 kHz to 750 MHz and generates output frequencies up to 720 MHz with ultra-low jitter of 95 fs rms. The device includes in-circuit programmable non-volatile memory for persistent configuration, hitless input switching, and automatic holdover modes. It operates on a 1.8 V core voltage and 3.3 V I/O supply across a temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates four independent DSPLLs for flexible any-frequency conversion
• Supports hitless and glitchless input clock switching
• Features automatic free-run and holdover modes for high availability
• Includes in-circuit programmable non-volatile memory

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

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix B03546 against official Skyworks documentation to confirm factory pre-programmed parameters. Confirm package type and temperature range match design requirements. Check current product lifecycle status as distribution may be limited.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple independent low-jitter timing paths are required from various input sources. Ensure the application utilizes the serial interface or NVM for configuration. Verify that the 720 MHz maximum output frequency meets system needs.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5347 family of quad DSPLL jitter attenuators. It shares the same package and core architecture with variants like the Si5347B-D-GM but differs in output frequency capabilities and factory programming. It is designed for high-performance networking and telecom infrastructure.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5347A-D-GM variants with different output frequency ranges. Cross-family alternatives like the Si5345 series offer similar functionality but with different PLL counts and package options.