SI5345A-B05975-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345A-B05975-GMR 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 any-frequency generation with differential output frequencies ranging from 100 Hz to 1028 MHz and LVCMOS outputs up to 250 MHz. Input frequency ranges are 8 kHz to 750 MHz for differential signals and 8 kHz to 250 MHz for LVCMOS. It operates on a core voltage of 1.8 V ±5% and an auxiliary voltage of 3.3 V ±5%, 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 and any-frequency clock generation.
• Supports free-run, synchronous, and holdover modes with automatic or manual hitless input clock switching.
• Features digitally programmable jitter attenuation bandwidth and glitchless on-the-fly output frequency changes.
• 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 factory preprogrammed configuration associated with the suffix B05975 against the target design requirements. Confirm that the GMR suffix aligns with the required tape and reel packaging format for the manufacturing process. Ensure compatibility with the I2C or SPI serial interface settings defined in the ClockBuilder Pro software.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when integer and fractional synthesis capabilities are required for frequencies up to 1028 MHz. The Si5345A variant specifically supports both synthesis modes unlike the C or D variants. Ensure the application utilizes the 64-QFN package footprint and accommodates the 1.8 V and 3.3 V dual-supply architecture.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 Rev D series, which integrates DSPLL and MultiSynth technologies. The 'A' designation indicates support for both integer and fractional frequency synthesis up to 1028 MHz. The 'B05975' suffix denotes a unique factory preprogrammed configuration assigned by Skyworks Solutions.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5345A-D-GM serves as the base blank prototyping device for the same package and electrical specifications. Other Si5345A variants may be considered if different factory preprogrammed configurations are acceptable.