SI5518B-B15714-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5518B-B15714-GM is a NetSync network synchronizer manufactured by Skyworks Solutions. It features four DSPLLs and six clock inputs, providing up to eighteen clock outputs with a maximum frequency of 3.2 GHz. The device delivers typical jitter performance of less than 55 fs RMS and supports a minimum PLL input bandwidth of 1 mHz. It includes support for 1PPS inputs and AccuTime software integration. The component operates within a temperature range of -40°C to +85°C and utilizes a 72-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates four DSPLLs for complex synchronization architectures
• Supports IEEE 1588 Precision Time Protocol via AccuTime software
• Provides programmable loop bandwidth down to 1 mHz
• Includes 1PPS/PP2S input and output capabilities

Clock Generators, PLLs, Frequency Synthesizers Applications

• 5G Radio Units (RU) and O-RAN configurations
• Small cells, pico cells, and distributed antenna systems
• IEEE 1588 grandmasters and boundary clocks

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against official Skyworks documentation to confirm exact electrical parameters and pinout compatibility. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Ensure availability through authorized distributors as supply conditions may vary.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when designing systems requiring high-frequency outputs up to 3.2 GHz combined with precise phase alignment. The integrated DSPLL architecture reduces bill-of-materials complexity compared to discrete solutions. Verify that the required number of clock inputs and outputs aligns with the six-input and eighteen-output configuration limits.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the NetSync family of network synchronizers designed for wireless and wireline infrastructure. It replaces multiple discrete timing devices by combining jitter attenuation, frequency synthesis, and PTP synchronization into a single integrated circuit solution.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Consult the Skyworks Timing Selector Guide for direct functional equivalents within the Si5518 series or other NetSync models. Verify package dimensions and thermal requirements before substituting with alternative part numbers.

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency supported by this device?

The device supports a maximum output frequency of 3.2 GHz.

Does this component support IEEE 1588 Precision Time Protocol?

Yes, it supports IEEE 1588 applications through integration with AccuTime software.

How many DSPLLs are integrated into this network synchronizer?

The SI5518B integrates four DSPLLs for enhanced synchronization flexibility.