SI52111-B3-GM2R

Overview

The SI52111-B3-GM2R is a single-output PCIe clock generator manufactured by Skyworks Solutions, Inc. It sources one compliant PCIe Gen 1 and Gen 2 differential clock output from a 25 MHz crystal or clock input. The device operates on a 3.3 V supply with a maximum operating current of 13 mA. It features a fixed 100 MHz output frequency without spread spectrum capability. The component is housed in a 10-pin TDFN package measuring 3x3 mm and supports an extended industrial temperature range from -40 °C to +85 °C.

Feature Summary

• PCIe Gen 1 and Gen 2 compliant low power HCSL differential output buffer
• Supports Serial-ATA (SATA) at 100 MHz
• No termination resistors required for the output stage
• Accepts 25 MHz crystal input or direct clock input

Applications

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

Procurement Notes

Verify the specific ordering suffix 'GM2R' corresponds to the tape and reel packaging format rather than tube packaging. Confirm that the B3 revision strictly lacks spread spectrum functionality, as this differs from the B4 variant. Ensure the extended temperature grade (-40 to +85 °C) meets the target system requirements before procurement.

Selection Notes

Select the SI52111-B3-GM2R when a fixed 100 MHz PCIe clock is required without spread spectrum modulation. This part is suitable for designs needing a small 10-pin TDFN footprint. If spread spectrum is necessary for EMI reduction, the Si52111-B4 series must be selected instead. For PCIe Gen 3 applications, consider the Si52111-B5/B6 models.

Part Context

This component belongs to the Si52111-B3/B4 family of high-performance PCIe clock generators. The 'B3' designation indicates the absence of spread spectrum outputs, distinguishing it from the 'B4' variant which supports 0.5% down spread. The 'GM2R' suffix specifies the 10-pin TDFN package configuration supplied in a tape and reel format for automated assembly.

Replacement Considerations

The Si52111-B3-GM2 serves as a direct functional replacement if tube packaging is acceptable. For designs requiring spread spectrum capabilities, the Si52111-B4-GM2R is the appropriate alternative within the same package.