SI52111-A2-GTR

Overview

The SI52111-A2-GTR is a single-output PCIe Gen 1 clock generator manufactured by Skyworks Solutions Inc. It generates a 100 MHz differential HCSL output from a 25 MHz crystal or clock input. The device supports -0.5% triangular spread spectrum for EMI reduction and operates on a 3.3 V supply with an operating current of 13 mA. It functions within an extended temperature range of –40 to 85 °C and is housed in an 8-pin TSSOP package.

Feature Summary

• PCIe Gen 1 compliant with 100 MHz differential HCSL output
• -0.5% triangular spread spectrum profile for EMI reduction
• Supports 25 MHz crystal or clock input without termination resistors
• Extended temperature operation (-40 to 85 °C) in 8-pin TSSOP

Applications

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

Procurement Notes

Verify the ordering suffix 'GTR' corresponds to the 8-pin TSSOP tape and reel packaging configuration. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary across regions.

Selection Notes

Select this model over the A1 variant when spread spectrum functionality is required for EMI mitigation. Ensure the application utilizes a 25 MHz reference source and requires a single differential output compatible with PCIe Gen 1 specifications.

Part Context

This component belongs to the Si52111 family of PCI-Express clock generators. The A2 designation indicates support for spread spectrum outputs, while the GTR suffix specifies the 8-pin TSSOP package type with tape and reel delivery format.

Replacement Considerations

For applications requiring higher generation speeds, consider the Si52111-B3/B4 (Gen 2) or Si52111-B5/B6 (Gen 3). For non-spread spectrum requirements, the Si52111-A1-GTR is functionally equivalent regarding package and electrical interface.