SI52111-B6-GTR

Overview

The SI52111-B6-GTR is a single-output PCIe clock generator from Skyworks Solutions, designed for Gen 1 through Gen 4 common clock compliance and Gen 3 SRNS. It sources a 100 MHz differential HCSL output from a 25 MHz crystal or clock input. The device features a triangular spread spectrum profile with a 0.5% down-spread range at a 31.5 kHz modulation frequency to reduce EMI. Operating on a 3.3 V supply with a typical current of 13 mA, it utilizes an 8-pin TSSOP package in tape-and-reel format for automated assembly.

Feature Summary

• PCIe Gen 1, Gen 2, Gen 3, Gen 3 SRNS, and Gen 4 common clock compliant
• Triangular spread spectrum with 0.5% down-spread range at 31.5 kHz
• Low power consumption with 13 mA operating supply current
• Supports Serial-ATA (SATA) at 100 MHz

Applications

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

Procurement Notes

Verify the 'GTR' suffix indicates the 8-pin TSSOP package with tape-and-reel packaging. Confirm the 'B6' designation ensures the inclusion of the 0.5% spread spectrum feature. Check the datasheet for specific reflow soldering profiles and moisture sensitivity levels required for this package type.

Selection Notes

Select the SI52111-B6 variant over the B5 if spread spectrum functionality is required for EMI reduction. Ensure the design accommodates the 8-pin TSSOP footprint rather than the 10-pin TDFN option. Verify that the 3.3 V power supply meets the extended temperature range voltage specifications of 3.13 V to 3.46 V.

Part Context

This component belongs to the Si52111 family of Tiny Clock PCIe generators. The B6 suffix specifically denotes support for spread spectrum outputs, distinguishing it from the non-spectrum B5 models. The GTR suffix identifies the specific 8-pin TSSOP package configuration supplied in a tape-and-reel format for surface-mount assembly.

Replacement Considerations

The SI52111-B5-GTR serves as a direct pin-compatible alternative but lacks the spread spectrum capability. When replacing the B6 model, ensure the application does not rely on the 0.5% down-spread feature for EMI compliance.