SI5361A-A-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5361A-A-GM is an 18-output jitter attenuator and clock multiplier featuring one DSPLL and two MultiSynths. It delivers ultra-low phase jitter of less than 55 fs RMS typ for integer mode outputs up to 1.3 GHz. The device supports differential inputs from 8 kHz to 1000 MHz and LVCMOS inputs up to 250 MHz. Outputs include LVDS, LVPECL, CML, HCSL, and LVCMOS formats. Operating voltages are 1.71 V to 1.89 V for the core and 3.14 V to 3.47 V for analog supplies. It operates within a -40 °C to +95 °C ambient temperature range in a 72-lead QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates fifth-generation DSPLL and MultiSynth technologies for any-frequency synthesis
• Provides enhanced hitless switching with minimal phase transients during input clock changes
• Supports automatic free-run, holdover, and locked modes for robust timing continuity
• Includes in-circuit programmable non-volatile memory for known power-up configurations

Clock Generators, PLLs, Frequency Synthesizers Applications

• 56G/112G/224G PAM4 SerDes clocking
• OTN muxponders and transponders
• 100/200/400/600/800G networking line cards
• Datacenter switches
• 100G/200G/400G optical transceivers

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering part number against the manufacturer's current datasheet revision to ensure compatibility with required interface standards. Confirm that the blank configuration matches the intended serial communication protocol before finalizing procurement orders.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when requiring a single PLL architecture with dual MultiSynths for flexible frequency generation. Ensure the design accommodates the 72-lead QFN thermal requirements and utilizes ClockBuilder Pro software for optimal loop bandwidth and jitter performance tuning.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This device belongs to the Si536x family of jitter attenuators, which also includes the Si5362 (two DSPLLs) and Si5363 (three DSPLLs). All variants share the same 72-QFN package and output capabilities but differ in internal PLL and MultiSynth counts to suit varying integration needs.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The Si5362A-A-GM and Si5363A-GM are pin-compatible alternatives within the same series. Verify if the additional PLL resources in these variants are necessary or if the single-PLL architecture of the Si5361 is sufficient for the application.