SI5361B-A15740-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5361B-A15740-GM is a jitter attenuator and clock multiplier from the Si536x family, manufactured by Skyworks Solutions. It features one DSPLL and one MultiSynth, supporting up to 18 outputs with a maximum frequency of 1.3 GHz. The device operates on core voltages of 1.71 V to 1.89 V and peripheral voltages of 3.14 V to 3.47 V. It accepts differential inputs up to 1 GHz or LVCMOS inputs up to 250 MHz. Packaged in a 72-lead QFN (10x10 mm), it supports extended ambient temperatures from -40 °C to +95 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates fifth-generation DSPLL and MultiSynth technologies for ultra-low jitter performance.
• Supports enhanced hitless switching to minimize phase transients during input clock changes.
• Allows any input frequency to generate any output frequency combination across multiple formats.

Clock Generators, PLLs, Frequency Synthesizers Applications

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

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm interface configuration and factory programming status. Ensure the component meets RoHS compliance requirements for your assembly process. Confirm that the 72-QFN package dimensions align with your PCB footprint design rules.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when a single DSPLL and one MultiSynth are sufficient for the target frequency plan. Compare against the Si5361A variant if two MultiSynths are required for independent output generation. Verify that the 1.3 GHz maximum output frequency meets the system requirements before choosing over the higher-frequency Si5361H variant.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5361/Si5362/Si5363 family of 18-output jitter attenuators. The 'B' designation indicates a specific internal architecture with one DSPLL and one MultiSynth, distinct from the 'A' variant which includes two MultiSynths. All variants share the same 72-QFN package and general electrical characteristics.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The Si5361A-Axxxxx-GM is a pin-compatible alternative offering two MultiSynths instead of one. For applications requiring higher output frequencies up to 2.75 GHz, the Si5361H-Axxxxx-GM is the appropriate high-frequency replacement within the same package.