SI5344A-B05787-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5344A-B05787-GM is a jitter attenuator and clock multiplier from the Si5344 family, manufactured by Skyworks Solutions. It features four inputs and four outputs housed in a 44-QFN (7x7 mm) package. The device supports integer and fractional frequency synthesis with an output range of 0.001 to 1028 MHz. It achieves ultra-low jitter performance of 90 fs rms and includes integrated non-volatile memory for configuration storage. Operating temperatures range from -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 technology.
• Supports hitless input clock switching between fractionally related sources without phase offset propagation.
• Includes programmable jitter attenuation bandwidth ranging from 0.1 Hz to 4 kHz for optimized noise filtering.
• Features in-circuit programmable non-volatile memory ensuring 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 factory preprogramming details. Confirm package availability and lead times through authorized distributors as standard supply chains may vary. Ensure compatibility with ClockBuilder Pro software versions for accurate configuration generation.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when low jitter performance below 100 fs is required alongside flexible frequency synthesis capabilities. The Si5344A variant specifically supports both integer and fractional modes up to 1028 MHz. Verify that the 4-input, 4-output topology meets system requirements compared to the Si5345 or Si5342 variants.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5345/44/42 Rev D family, which utilizes MultiSynth and DSPLL technologies. The Si5344 model specifically provides a compact 44-QFN footprint with four differential inputs and four configurable outputs, bridging the gap between the higher-channel Si5345 and lower-channel Si5342 devices.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same family include the Si5344A-D-GM generic form factor. For applications requiring more outputs, the Si5345A-D-GM serves as an upgrade path. If only two outputs are needed, the Si5342A-D-GM offers a compatible pinout alternative.