SI5345A-B03416-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5345A-B03416-GM is a low-jitter, 10-output clock synthesizer and jitter attenuator. It supports any-frequency generation up to 712.5 MHz with differential outputs and LVCMOS inputs. The device operates on a single 1.8 V supply (VDD) and 3.3 V supply (VDDA), consuming approximately 125 mA. It features an integrated loop filter and in-circuit programmable non-volatile memory for known power-up configurations. The component is housed in a 64-QFN package and functions within a temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Combines fourth-generation DSPLL and MultiSynth technologies for ultra-low jitter performance.
• Supports free-run, synchronous, and holdover modes with automatic or manual input clock switching.
• Features digitally programmable jitter attenuation bandwidth for application-level optimization.
• Includes in-circuit programmable non-volatile memory to ensure known frequency configuration upon power-up.

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 factory preprogramming details. Confirm availability status as distribution channels may list this part as discontinued or limited stock. Ensure the serial interface requirements match your system design before procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when high channel count and flexible frequency synthesis are required. Verify that the maximum output frequency of 712.5 MHz meets system needs. Ensure the QFN-64 package footprint is compatible with the PCB layout. Check if the specific preprogrammed configuration matches the target application frequencies.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 family of jitter attenuators. It shares the same core architecture and package type as other variants in the series but differs in its specific factory-programmed frequency settings. The 'A' designation indicates support for fractional synthesis up to higher frequencies compared to 'B' variants.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5345A-D-GM: General purpose variant with similar specifications but different preprogramming.

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency for this specific part?

The maximum output frequency for the SI5345A-B03416-GM is 712.5 MHz.

Does this device require an external crystal?

Yes, an external crystal in the range of 25 to 54 MHz is recommended for the XA/XB pins to provide a stable reference clock.

How is the device configured after manufacturing?

It is factory preprogrammed with a specific configuration stored in non-volatile memory, ensuring it powers up with a known frequency setting.