SI5342D-B04694-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5342D-B04694-GMR is a jitter attenuator and clock multiplier from the Si5342 Rev D family, manufactured by Skyworks Solutions Inc. It features four inputs and two outputs housed in a 44-QFN 7x7 mm package. 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 signals and up to 250 MHz for LVCMOS. It achieves an ultra-low jitter performance of 90 fs rms and operates within a temperature range of -40 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.
• Supports highly configurable outputs compatible with LVDS, LVPECL, LVCMOS, CML, and HCSL standards with programmable signal amplitude.
• Includes in-circuit programmable non-volatile memory (NVM) allowing the device to power up with a known frequency 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

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix B04694 against official Skyworks documentation to confirm factory preprogrammed configuration details. Ensure compatibility with I2C or SPI serial interfaces during integration. Confirm that the 44-QFN 7x7 mm package dimensions align with the target PCB land pattern requirements.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a low-pin-count solution with two outputs is required for jitter attenuation applications. The Si5342D variant specifically supports fractional synthesis modes up to 350 MHz. Utilize ClockBuilder Pro software to configure the digital loop bandwidth and verify holdover mode parameters for system stability.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5342 Rev D series, which combines DSPLL and MultiSynth technologies. It serves as a compact alternative to the 10-output Si5345 and 4-output Si5344 models, offering a 4-input, 2-output configuration in a smaller 44-QFN footprint while maintaining similar jitter performance capabilities.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements within the same family include the SI5342A-D-GM, SI5342B-D-GM, and SI5342C-D-GM. These variants share the same package and pinout but differ in supported frequency ranges and synthesis modes. Verify that the replacement part meets the specific 350 MHz output requirement if applicable.