SI52112-B6-GM2R

Overview

The SI52112-B6-GM2R is a dual-output PCIe clock generator from Skyworks Solutions, designed for high-performance applications requiring compliance with PCIe Gen 1, Gen 2, and Gen 3 common clock specifications. It generates two differential HCSL clock outputs from a 25 MHz crystal or clock input. The device supports 0.5% triangular spread spectrum modulation to reduce EMI. It operates on a 3.3 V supply with a maximum current of 17 mA and functions within an extended temperature range of -40 °C to +85 °C. The component is housed in a compact 10-pin TDFN package measuring 3 x 3 mm.

Feature Summary

• PCIe Gen 1, Gen 2, and Gen 3 Common Clock compliant
• Gen 3 SRNS compliant
• Supports 0.5% down spread spectrum for EMI reduction
• Low power HCSL differential output buffers

Applications

• Network attached storage
• Multi-function printer
• PCIe Add-on Cards
• Network Interface Cards
• Wireless access point

Procurement Notes

Verify the ordering suffix 'GM2R' corresponds to the 10-pin TDFN package and tape-and-reel packaging format. Confirm that the B6 variant is required for 0.5% spread spectrum functionality, as opposed to the non-spread B5 version. Ensure the design accommodates the specific thermal dissipation requirements for the 10-pin TDFN package.

Selection Notes

Select this part when PCIe Gen 3 SRNS compliance and spread spectrum capabilities are necessary. The 10-pin TDFN package offers a larger footprint than the 8-pin option but provides additional ground pins for improved thermal performance. Verify that the system requires differential HCSL outputs and a 25 MHz reference frequency.

Part Context

This component belongs to the Si52112-B5/B6 family of PCIe clock generators. The B6 designation specifically indicates support for 0.5% triangular spread spectrum modulation, distinguishing it from the B5 series which lacks this feature. Both variants share similar electrical characteristics and package options.

Replacement Considerations

Public confirmed substitute part numbers: None.