SI5344B-D06450-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5344B-D06450-GMR is a jitter attenuating clock multiplier from the Si5344 Rev D family, manufactured by Skyworks Solutions. It features four inputs and four outputs housed in a 44-QFN package measuring 7x7 mm. The device supports any-frequency synthesis with an output range of 0.001 to 350 MHz. It utilizes fourth-generation DSPLL and MultiSynth technologies for ultra-low jitter performance of 90 fs rms. Power requirements include a core voltage (VDD) of 1.8 V ±5% and an analog supply (VDDA) of 3.3 V ±5%. Operating temperatures range from -40 to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fractional and integer synthesis modes.
• Features programmable jitter attenuation bandwidth ranging from 0.1 Hz to 4 kHz for optimized performance.
• Supports hitless input clock switching between fractionally related clocks 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 suffix against the manufacturer's current documentation to confirm tape and reel packaging status. Ensure the part number matches the exact Rev D silicon revision required for your design. Confirm that the factory preprogrammed configuration corresponds to your application needs, as custom configurations are assigned unique numerical sequences.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when an output frequency limit of 350 MHz is sufficient, distinguishing it from the higher-frequency Si5344A variant which supports up to 1028 MHz. Verify compatibility with LVDS, LVPECL, LVCMOS, CML, and HCSL output formats. Ensure the serial interface configuration (I2C or SPI) aligns with the system controller capabilities.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D family of jitter attenuators. The Si5344 variant specifically provides four inputs and four outputs in a compact 44-QFN package. It shares architectural similarities with the Si5345 (10 outputs) and Si5342 (2 outputs), utilizing the same DSPLL and MultiSynth technologies for high-performance clock generation.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5344A-Dxxxxx-GMR offers a wider output frequency range up to 1028 MHz while maintaining the same package and pinout. Si5344C-Dxxxxx-GMR provides integer-only synthesis up to 1028 MHz. Si5344D-Dxxxxx-GMR supports integer/fractional synthesis limited to 350 MHz.