SI52111-A2-GM2

Overview

The SI52111-A2-GM2 is a single-output PCIe Gen 1 clock generator manufactured by Skyworks Solutions. It sources one compliant differential clock output from a 25 MHz crystal or clock input, supporting Serial-ATA at 100 MHz. The device features low power HCSL differential outputs and supports triangular spread spectrum profiles for EMI reduction. It operates on a 3.3 V supply with an operating current of 13 mA. The component is housed in a compact 10-pin TDFN (3x3 mm) package and functions within an extended temperature range of –40 to +85 °C.

Feature Summary

• PCIe Gen 1 compliant with 0.5% down spread spectrum support
• Low power consumption with 13 mA operating current
• HCSL differential output buffer requiring no termination resistors
• Supports 25 MHz crystal or clock input

Applications

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

Procurement Notes

Verify the specific ordering suffix 'GM2' corresponds to the 10-pin TDFN package configuration. Confirm that the A2 variant is required for spread spectrum functionality, as the A1 variant does not support this feature. Ensure compatibility with the 3.3 V power supply requirements and the extended temperature operational range specified in the datasheet.

Selection Notes

Select the SI52111-A2-GM2 when a single differential PCIe Gen 1 clock output is needed with spread spectrum capabilities. This model is suitable for designs requiring a small footprint via the 10-pin TDFN package. For applications requiring multiple outputs or higher generation compliance, consider alternative models such as the SI52112 series or B-series variants.

Part Context

This component belongs to the Si52111-A1/A2 family of PCI-E Xpress Gen 1 Single Output Clock Generators. The A2 designation specifically indicates support for 0.5% down spread outputs, distinguishing it from the non-spread A1 version. The GM2 suffix identifies the physical packaging as a lead-free, RoHS-compliant 10-pin TDFN.

Replacement Considerations

For PCIe Gen 2 applications, the Si52111-B3/B4 series is recommended. For PCIe Gen 3 applications, the Si52111-B5/B6 series is indicated. The Si52111-A1-GM2 serves as a direct substitute if spread spectrum functionality is not required.