SI52111-A1-GM2

Overview

The SI52111-A1-GM2 is a single-output PCIe Gen 1 clock generator manufactured by Skyworks Solutions Inc. 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. Unlike the A2 variant, this model does not support spread spectrum outputs. It is housed in a compact 10-pin TDFN (3x3 mm) package.

Feature Summary

• PCI-Express Gen 1 compliant single-output clock generator
• Low power HCSL differential output buffer requiring no termination resistors
• Supports Serial-ATA (SATA) at 100 MHz
• Accepts 25 MHz crystal or clock input

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors. Confirm the specific ordering suffix GM2 corresponds to the 10-pin TDFN package. Check for RoHS compliance status as indicated in the datasheet. Ensure the absence of spread spectrum functionality aligns with system requirements, as this is the A1 variant.

Selection Notes

Select the SI52111-A1-GM2 when PCIe Gen 1 compliance and low power consumption are required without spread spectrum modulation. Compare against the A2 variant if EMI reduction via triangular spread spectrum is necessary. Consider the 8-pin TSSOP option (GT/GTR) if board space allows for a larger footprint but requires tape and reel packaging.

Part Context

This component belongs to the Si52111-A1/A2 series of PCI-E Xpress Gen 1 Single Output Clock Generators. It is designed for consumer and embedded applications where ultra-small footprint and industry-leading low power consumption are critical design constraints.

Replacement Considerations

For PCIe Gen 2 applications, consider the Si52111-B3/B4 series. For PCIe Gen 3 applications, refer to the Si52111-B5/B6 series. The Si52111-A2-GM2 serves as a direct functional substitute if spread spectrum capability is desired.