SI5345B-B06151-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345B-B06151-GMR is a jitter attenuator and clock multiplier from the Si5345 family, manufactured by Skyworks Solutions. It features four inputs and ten outputs housed in a 64-QFN package measuring 9x9 mm. The device supports differential input frequencies from 8 kHz to 750 MHz and LVCMOS inputs up to 250 MHz. Output frequencies range from 100 Hz to 350 MHz for differential formats and up 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%. The component functions 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 fourth-generation DSPLL and MultiSynth technologies.
• Provides ultra-low jitter performance with a specified value of 90 fs rms.
• Supports hitless input clock switching between fractionally related clocks and glitchless on-the-fly output frequency changes.
• 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 tape-and-reel packaging and factory preprogramming status. Ensure the part number matches the exact Rev D specification required for your design. Cross-reference the unique numerical sequence in the part number with ClockBuilder Pro software configurations if custom settings are needed. Confirm RoHS compliance and lead times directly with authorized distributors or the manufacturer.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when ten independent output clocks are required with frequencies capped at 350 MHz. The Si5345B variant is distinct from the Si5345A which supports frequencies up to 1028 MHz. Ensure the application requires the specific 64-QFN package footprint. Verify that the serial interface requirements align with I2C or SPI capabilities provided by the device.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D family of jitter attenuators. The Si5345 variant specifically provides four inputs and ten outputs, distinguishing it from the Si5344 (four outputs) and Si5342 (two outputs). All variants share the same underlying DSPLL and MultiSynth architecture but differ in pin count and output capacity.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other SKUs within the Si5345B-D series, such as SI5345B-D-GMR, provided the electrical parameters and package dimensions remain identical. Verify that any substitute maintains the 350 MHz maximum output frequency limit and the 64-QFN form factor.