SI5345A-B05707-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345A-B05707-GMR is a 10-channel jitter attenuator and clock multiplier from the Si5345 family, manufactured by Skyworks Solutions Inc. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any combination of output frequencies from any input frequency. The device supports integer and fractional synthesis modes with an output frequency range up to 1028 MHz for differential outputs. It features ultra-low jitter performance of 90 fs rms and includes in-circuit programmable non-volatile memory (NVM) for configuration storage. The component operates within a temperature range of -40°C to +85°C and is housed in a 64-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using integer and fractional synthesis
• Features ultra-low jitter performance of 90 fs rms
• Supports hitless input clock switching between fractionally related inputs
• Includes in-circuit programmable non-volatile memory (NVM) for power-up 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
• SONET/SDH line cards

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure compatibility with required packaging options such as tape and reel. Confirm that the factory preprogrammed configuration matches the intended application requirements before procurement. Check for any recent product change notices or end-of-life announcements associated with this part number.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when high channel count and wide frequency range are required. The 'A' variant supports differential outputs up to 1028 MHz and fractional synthesis. Ensure the design accommodates the 64-QFN package dimensions. Verify that the external crystal specifications meet the recommended 48 MHz to 54 MHz range for optimal jitter performance.

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. It is designed for applications requiring precise clock generation and jitter cleaning in high-speed digital systems. The family shares common functional blocks but differs in I/O count and package size.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5345B-D-GM

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency for differential outputs?

The maximum output frequency for differential outputs is 1028 MHz.

How does the device handle input clock switching?

It supports hitless switching between inputs that are fractionally related, as well as glitchless switching for inputs with frequency differences up to ±500 ppm.

Is the loop filter integrated on-chip?

Yes, the loop filter is fully integrated on-chip, eliminating the need for discrete components and reducing noise coupling risks.