SI52111-B4-GM2

Overview

The SI52111-B4-GM2 is a single-output PCIe clock generator compliant with Gen 1 and Gen 2 specifications. It sources one differential HCSL output from a 25 MHz crystal or clock input, operating at a maximum frequency of 100 MHz. The device features a triangular spread spectrum profile for EMI reduction, consuming 13 mA at a 3.3 V supply (range 2.97–3.63 V). Packaged in a 10-pin TDFN (3x3 mm), it supports an extended operating temperature range of –40 to +85 °C.

Feature Summary

• PCIe Gen 1 and Gen 2 compliant single-output clock generation
• Integrated 0.5% down spread spectrum for EMI reduction
• Low power consumption: 13 mA typical active current
• HCSL differential output buffer requiring no termination resistors

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel configuration. Confirm that the component meets RoHS6 standards and lead-free requirements as specified in the datasheet before procurement.

Selection Notes

Select this model over the SI52111-B3 variant when spread spectrum functionality is required for EMI compliance. Ensure the design accommodates the 10-pin TDFN footprint and verify that the 25 MHz input source matches the crystal or clock input specifications.

Part Context

This component belongs to the Si52111-B3/B4 family of PCI-Express Gen 2 single-output clock generators. It shares core electrical characteristics with the B3 series but adds integrated spread spectrum capabilities. For higher-speed applications like PCIe Gen 3, the B5/B6 variants are recommended.

Replacement Considerations

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