SI52112-A1-GTR

Overview

The Skyworks SI52112-A1-GTR is a PCIe Gen 1 dual-output clock generator housed in an 8-pin TSSOP package. It sources two differential HCSL clocks from a 25 MHz crystal or clock input, supporting frequencies up to 100 MHz. The device operates on a 3.3 V supply with a typical current of 17 mA and functions within an extended temperature range of –40 °C to +85 °C. Unlike the A2 variant, this model does not support spread spectrum outputs.

Feature Summary

• PCIe Gen 1 compliant dual differential HCSL outputs
• No termination resistors required for output buffers
• Supports 25 MHz crystal or direct clock input
• Extended operating temperature: –40 °C to +85 °C

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status via official documentation. Check for End-of-Life notices as availability may be restricted. Ensure ordering suffixes match specific packaging requirements.

Selection Notes

Select this part for designs requiring non-spread spectrum PCIe Gen 1 clocking. Use the SI52112-A2 series if spread spectrum functionality is needed. Verify that the 8-pin TSSOP footprint aligns with the PCB layout constraints.

Part Context

This component belongs to the Si52112 family of PCI-Express clock generators. The 'A1' designation indicates the absence of spread spectrum features, distinguishing it from the 'A2' variant which supports 0.5% down spread. It serves as a timing source for consumer and embedded applications.

Replacement Considerations

Skyworks recommends the SI52112-B6-GT as a replacement. Note that B-series devices target higher PCIe generations and may require design adjustments.