SI52111-A1-GM2R

Overview

The SI52111-A1-GM2R is a single-output PCIe Gen 1 clock generator manufactured by Skyworks Solutions Inc. It sources one compliant differential clock output from a 25 MHz crystal or clock input, operating at a maximum frequency of 100 MHz. The device features low power consumption with an operating supply current of 13 mA and supports a 3.3 V supply voltage (2.97 V to 3.63 V). It utilizes HCSL differential outputs without requiring termination resistors and operates within an extended temperature range of –40 °C to +85 °C. This specific variant does not support spread spectrum functionality.

Feature Summary

• PCIe Gen 1 compliant single-output clock generator
• HCSL differential output buffer with no termination resistors required
• Supports 25 MHz crystal or clock input for 100 MHz output
• Extended temperature operation (-40 °C to +85 °C)
• Low power consumption (13 mA typical)

Applications

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

Procurement Notes

Verify the ordering suffix 'GM2R' corresponds to the 10-pin TDFN package in tape and reel format. Confirm that the 'A1' designation indicates the absence of spread spectrum capabilities, which distinguishes it from the 'A2' variant. Ensure compatibility with the required 3.3 V power supply and 25 MHz input source during procurement planning.

Selection Notes

Select the SI52111-A1-GM2R when a single PCIe Gen 1 compliant clock is required without spread spectrum modulation. Choose this part over the A2 variant if EMI reduction via spreading is unnecessary. Verify that the 10-pin TDFN package fits the PCB layout constraints and that the design accommodates the recommended external trim capacitors for crystal loading.

Part Context

This component belongs to the Si52111-A1/A2 family of PCI-Express Gen 1 single-output clock generators. It shares core electrical specifications with the GM2 tube version but differs in packaging format. The 'A1' suffix specifically denotes the non-spread spectrum configuration, while 'A2' variants offer 0.5% down spread options.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.