SI52112-B3-GT

Overview

The Skyworks SI52112-B3-GT is a dual-output PCIe clock generator compliant with Gen 1 and Gen 2 specifications. It sources two differential HCSL clocks from a 25 MHz crystal or clock input, operating at a maximum frequency of 100 MHz. The device features a low power consumption of 17 mA and operates within an extended temperature range of -40 to +85 °C. Powered by a 3.3 V supply (2.97 V to 3.63 V), it utilizes an 8-pin TSSOP package. Unlike the B4 variant, this model does not support spread spectrum outputs.

Feature Summary

• Dual differential HCSL outputs compliant with PCIe Gen 1 and Gen 2 standards
• Supports 25 MHz crystal or clock input for flexible integration
• Low power consumption of 17 mA with no termination resistors required
• Extended industrial temperature operation (-40 to +85 °C)

Applications

• Network Attached Storage (NAS)
• Multi-function Printers
• Wireless Access Points
• Routers

Procurement Notes

Verify the specific ordering suffix 'GT' confirms the 8-pin TSSOP package type when sourcing components. Confirm that the 'B3' designation indicates the absence of spread spectrum functionality, which distinguishes it from the B4 series. Ensure compatibility with standard 3.3 V logic levels and verify that the application design accommodates the 17 mA supply current requirement.

Selection Notes

Select the SI52112-B3-GT for designs requiring dual differential PCIe clocks without spread spectrum modulation. This part is suitable for consumer and embedded applications where the small footprint and low power are prioritized. For applications requiring spread spectrum capabilities, consider the SI52112-B4 series instead. Ensure the PCB layout supports the 8-pin TSSOP package dimensions.

Part Context

This component belongs to the Si52112-B3/B4 family of high-performance PCIe clock generators. The 'B3' base number specifically denotes the non-spread spectrum version, while the '-GT' suffix identifies the 8-pin TSSOP package configuration. It serves as a timing solution for systems needing reliable clock distribution for PCIe interfaces.

Replacement Considerations

Public confirmed substitute part numbers: SI52112-A2-GT.