SI5345A-B03374-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5345A-B03374-GM is a factory preprogrammed, low-jitter clock multiplier and jitter attenuator from the Si5345 Rev D family. It features four inputs and ten outputs housed in a 64-QFN package. The device supports integer and fractional frequency synthesis with output frequencies ranging from 0.001 MHz to 1028 MHz. It integrates fourth-generation DSPLL technology for ultra-low jitter performance of 90 fs rms. The unit operates on a core voltage of 1.8 V ±5% and an analog supply of 3.3 V ±5%, functioning within a temperature range of –40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using integer and fractional synthesis modes.
• Integrates fourth-generation DSPLL and MultiSynth technologies for high-performance jitter attenuation.
• Supports hitless input clock switching between fractionally related inputs without phase offset propagation.
• 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 part number against the manufacturer's current documentation to confirm availability and revision status. Factory preprogrammed devices utilize unique numerical sequences representing the configuration. Ensure compatibility with the required serial interface and voltage levels before finalizing procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when applications require up to ten differential or single-ended outputs with frequencies up to 1028 MHz. The Si5345A variant specifically supports both integer and fractional synthesis modes. Verify that the system design accommodates the 64-QFN package dimensions and the specified dual-voltage power requirements.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5345/44/42 Rev D series, which combines DSPLL and MultiSynth technologies. The 'A' designation indicates support for integer and fractional synthesis up to 1028 MHz. The suffix '-B03374-' identifies it as a custom, factory preprogrammed device with a specific configuration stored in non-volatile memory.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other factory preprogrammed variants within the Si5345A-D-GM family, such as SI5345A-Bxxxxx-GM. Ensure the substitute part number corresponds to the exact frequency plan and configuration previously programmed into the B03374 unit.