SI52111-A2-GT

Overview

The SI52111-A2-GT 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, supporting Serial-ATA at 100 MHz. The device features low power HCSL differential outputs and requires no termination resistors. It incorporates a triangular spread spectrum profile for EMI reduction and operates on a 3.3 V supply with an extended temperature range of –40 to 85 °C. The component is housed in an 8-pin TSSOP package.

Feature Summary

• PCIe Gen 1 compliant single-output clock generation
• Supports 25 MHz crystal or clock input
• Triangular spread spectrum profile (–0.5% down spread)
• Low power consumption (13 mA typical)

Applications

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

Procurement Notes

Verify the specific ordering suffix 'GT' corresponds to the 8-pin TSSOP package configuration as defined in the manufacturer's ordering guide. Confirm that the A2 variant is required for spread spectrum functionality, distinct from the non-spectrum A1 version. Ensure compatibility with the specified 3.3 V operating voltage and extended temperature range requirements for the target application.

Selection Notes

Select the SI52111-A2-GT when a single differential PCIe Gen 1 clock output is needed with spread spectrum capabilities. This model is suitable for designs requiring low power consumption and small footprint integration. Verify that the system design accommodates the 8-pin TSSOP package dimensions and utilizes the recommended external components for crystal loading if a crystal input is employed.

Part Context

This component belongs to the Si52111-A1/A2 family of high-performance PCIe clock generators. The A2 designation specifically indicates support for –0.5% down spread spectrum modulation, whereas the A1 variant does not support this feature. The GT suffix identifies the 8-pin TSSOP package option within this product line.

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. These alternatives provide higher speed compliance while maintaining similar form factors.