SI52111-B6-GT

Overview

The Skyworks SI52111-B6-GT is a single-output PCIe clock generator compliant with Gen 1, Gen 2, Gen 3, Gen 3 SRNS, and Gen 4 specifications. It generates a 100 MHz differential HCSL output from a 25 MHz crystal or clock input. The device features a triangular spread spectrum profile of -0.5% for EMI reduction. Operating conditions include a supply voltage range of 2.97 V to 3.63 V, an operating current of 13 mA, and an extended temperature range of –40 °C to +85 °C. It utilizes an 8-pin TSSOP package.

Feature Summary

• PCIe Gen 1, Gen 2, Gen 3, Gen 3 SRNS, and Gen 4 common clock compliance
• -0.5% down spread spectrum capability for maximum EMI reduction
• Low power HCSL differential output buffer requiring no termination resistors
• Supports Serial-ATA (SATA) at 100 MHz

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 in the manufacturer's official ordering guide. Confirm that the B6 variant is required for the intended spread spectrum functionality, as the B5 variant does not support this feature. Ensure component availability aligns with project timelines.

Selection Notes

Select the SI52111-B6-GT when PCIe Gen 3 SRNS or Gen 4 compliance is necessary alongside spread spectrum requirements. The B5 variant should be chosen if spread spectrum is not needed. Verify that the 8-pin TSSOP footprint fits the PCB layout constraints compared to the available 10-pin TDFN option.

Part Context

This component belongs to the Si52111-B5/B6 family of high-performance PCIe clock generators. The B6 designation specifically indicates the inclusion of a -0.5% triangular spread spectrum profile, distinguishing it from the non-spread B5 model within the same product line.

Replacement Considerations

The SI52111-B5-GT serves as a functional substitute if spread spectrum modulation is not required by the design.