SI5397L-A-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5397L-A-GM is a quad DSPLL jitter-attenuating clock multiplier featuring four independent phase-locked loops and eight outputs. It utilizes an integrated crystal reference to reduce board space and acoustic noise. The device supports any-frequency conversion with typical jitter performance of 95 fs rms. Output frequencies range from 100 Hz to 720 MHz for differential formats and up to 250 MHz for LVCMOS. It operates on a core voltage of 1.8 V ± 5% and includes in-circuit programmable non-volatile memory.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates four independent DSPLLs for flexible timing path synchronization
• Features an internal crystal reference to minimize board space and acoustic emissions
• Supports enhanced hitless switching to minimize output phase transients
• Includes automatic free-run and holdover modes for system reliability

Clock Generators, PLLs, Frequency Synthesizers Applications

• OTN muxponders and transponders
• 10/40/100/400GbE systems
• Synchronous Ethernet (ITU-T G.8262)
• Carrier Ethernet switches
• Broadcast video equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and reference configuration. Ensure compatibility with ClockBuilder Pro software for configuration. Check for moisture sensitivity handling requirements during storage and assembly.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when four independent PLL domains are required with an integrated reference source. Compare against external reference grades if higher frequency flexibility or different packaging is needed. Verify that the 720 MHz maximum output frequency meets system requirements.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5397 family, which offers high integration for multi-domain timing applications. It serves as a drop-in compatible replacement for previous generation devices like the Si5347 series while providing improved jitter performance and additional features such as DCO mode.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers include SI5397J-A-GM and SI5397K-A-GM. These variants share the same package and pinout but differ in reference type or frequency range specifications.