SI5344A-D06455-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5344A-D06455-GM is a factory preprogrammed clock synthesizer and jitter cleaner from the Si5344 family. It features four inputs and four outputs, supporting integer and fractional frequency synthesis with output frequencies ranging from 100 Hz to 1028 MHz. The device utilizes fourth-generation DSPLL technology to achieve ultra-low jitter performance of 90 fs rms. It operates on a core voltage (VDD) of 1.8 V ±5% and an analog supply (VDDA) of 3.3 V ±5%. The component is housed in a 44-QFN package measuring 7x7 mm and supports an operating 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 integer and fractional synthesis modes.
• Integrates fourth-generation DSPLL technology for ultra-low jitter attenuation and high-performance clock multiplication.
• Supports hitless input clock switching between fractionally related inputs 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 numerical sequence '06455' in the part number against Skyworks documentation to confirm the exact factory preprogrammed configuration. Ensure compatibility with the required serial interface protocol and check for any specific humidity sensitivity handling requirements during storage and assembly.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when a fixed, preconfigured clock solution is preferred over field-programmable devices. Verify that the required output frequencies fall within the 100 Hz to 1028 MHz range and that the 4-input, 4-output architecture meets the system design constraints. Confirm that the 44-QFN package dimensions fit the PCB layout.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5344 family, which offers 4 inputs and 4 outputs in a 44-QFN package. It shares the same underlying DSPLL and MultiSynth technologies as the Si5345 and Si5342 models but provides a reduced I/O count suitable for applications requiring fewer clock outputs while maintaining high jitter performance.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct functional replacements include other Si5344 variants such as SI5344A-D-GM or SI5344C-D-GM, provided the specific preprogrammed frequency configuration of the D06455 suffix is not critical or can be reconfigured via ClockBuilder Pro software.

Clock Generators, PLLs, Frequency Synthesizers FAQ

What does the 'D06455' suffix indicate in the part number?

The 'D06455' suffix indicates that the device is a custom, factory preprogrammed unit with a unique numerical sequence representing its specific preprogrammed frequency configuration.

Does the SI5344A support gapped clock inputs?

Yes, the DSPLL supports locking to gapped clock inputs, provided the valid gapped clock has a minimum frequency of 10 MHz and a maximum of two missing cycles out of every eight.

How is the loop bandwidth configured?

The DSPLL loop bandwidth is digitally programmable via the serial interface, allowing settings between 0.1 Hz and 4 kHz for jitter performance optimization.