SI52202-A02AGM

Overview

The Si52202-A02AGM is a two-output PCI Express clock generator supporting Gen 1 through Gen 7 specifications. It provides two 100 MHz differential LP-HCSL outputs and operates within a 1.5 V to 1.8 V supply range. The device features internal 85 Ω line matching, eliminating external termination resistors. It accepts a 25 MHz crystal or clock input and includes individual hardware control pins for output enable, spread spectrum selection, and frequency configuration. The component is housed in a compact 20-pin QFN package.

Feature Summary

• Two-output PCIe Gen 1/2/3/4/5/6/7 clock generator with LP-HCSL drivers
• Internal 85 Ω impedance matching for reduced board space
• Hardware and I2C controls for output enable, spread spectrum, and frequency select
• Low jitter performance of 0.085 ps (RMS) maximum

Applications

• Servers
• Storage systems
• Data centers
• PCIe add-on cards
• Network Interface Cards (NICs)

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and termination resistance. Confirm RoHS compliance status via the Certificate of Conformance. Check for any recent Product Change Notifications that may affect pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this model when only two differential PCIe clock outputs are required. Ensure the design utilizes the internal 85 Ω termination; if 100 Ω termination is needed, a different variant must be chosen. Verify that the application supports the fixed 100 MHz output frequency, as higher frequencies require factory consultation.

Part Context

This component belongs to the Si522xx family, which includes the Si52212, Si52208, and Si52204. While the larger variants offer four, eight, or twelve outputs respectively, the Si52202 is optimized for minimal footprint applications requiring only dual differential clocks. All members share similar control interfaces and power supply requirements.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing requires consulting Skyworks Solutions directly for equivalent devices with compatible pinouts and electrical specifications.