SI5345A-B03619-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5345A-B03619-GMR is a low-jitter, 10-output clock synthesizer and jitter attenuator. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any frequency combination from any input. The device supports differential inputs up to 750 MHz and LVCMOS inputs up to 250 MHz. Output frequencies range from 100 Hz to 1028 MHz for differential outputs and 100 Hz to 250 MHz for LVCMOS outputs. It features ultra-low jitter of 90 fs rms and meets ITU-T G.8262 SyncE requirements. The component operates within a temperature range of -40°C to +85°C and is housed in a QFN-64 package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fractional and integer synthesis.
• Features programmable jitter attenuation bandwidth ranging from 0.1 Hz to 4 kHz for optimized performance.
• Supports hitless input clock switching with automatic or manual selection capabilities.
• Includes in-circuit programmable non-volatile memory for known power-up configuration.

Clock Generators, PLLs, Frequency Synthesizers Applications

• OTN muxponders and transponders
• 10/40/100 G networking line cards
• GbE/10 GbE/100 GbE Synchronous Ethernet (ITU-T G.8262)
• Carrier Ethernet switches
• SONET/SDH line cards

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm packaging details and factory preprogramming status. Ensure compatibility with the required serial interface protocol and voltage levels before integration. Confirm availability through authorized distributors as supply conditions may vary.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when high-frequency generation up to 1028 MHz is required alongside low-jitter performance. Verify that the application supports the QFN-64 package dimensions and thermal requirements. Ensure the design accommodates the necessary external crystal or reference clock components for optimal jitter attenuation.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5345 family of jitter attenuators and clock multipliers. It shares architectural similarities with the Si5344 and Si5342 models but offers ten output channels compared to four or two in other variants. The 'A' designation indicates support for both integer and fractional synthesis modes across the full frequency range.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5345A-D-GM