SI52111-B5-GM2R

Overview

The SI52111-B5-GM2R is a single-output PCIe clock generator from Skyworks Solutions, designed for Gen 1 through Gen 4 common clock compliance. It sources one differential HCSL output at 100 MHz from a 25 MHz crystal or clock input. The device operates on a 3.3 V supply with a typical current of 13 mA and supports an extended temperature range of -40 to +85 °C. It utilizes a 10-pin TDFN package (3x3 mm) and does not support spread spectrum modulation.

Feature Summary

• PCIe Gen 1, Gen 2, Gen 3, Gen 3 SRNS, and Gen 4 common clock compliant
• Low power HCSL differential output buffer requiring no termination resistors
• Supports 25 MHz crystal or clock input with triangular spread spectrum profile available in B6 variant only
• Extended operating temperature range from -40 to +85 °C

Applications

• Network Attached Storage
• Multi-function Printer
• Wireless Access Point
• Routers

Procurement Notes

Verify the 'GM2R' suffix indicates tape and reel packaging for the 10-pin TDFN format. Confirm that the B5 designation ensures no spread spectrum functionality, which differs from the B6 variant. Check for RoHS6 and lead-free status as specified in the ordering guide.

Selection Notes

Select this component when a single differential PCIe clock output is required without spread spectrum capabilities. Ensure the design accommodates the 10-pin TDFN footprint and 3.3 V power supply constraints. Consider the B6 variant if EMI reduction via 0.5% down spread is necessary.

Part Context

This part belongs to the Si52111-B5/B6 family of high-performance PCIe clock generators. The B5 variant specifically excludes spread spectrum features, distinguishing it from the B6 model which supports 0.5% down spread. Both share identical electrical specifications and package options.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.