SI52202-A01BGMR

Overview

The Skyworks Si52202-A01BGMR is a two-output PCI Express clock generator supporting Gen 1 through Gen 7 and SRIS applications. It operates on a 1.5 V to 1.8 V supply with separate VDD and VDD_IO rails. The device provides two 100 MHz LP-HCSL differential clock outputs compliant with PCIe common clock and separate reference architectures. It features individual hardware control pins for output enable, spread spectrum selection (0.25% or 0.5%), and frequency select. The component includes internal 100 Ω or 85 Ω line matching, adjustable slew rates, and an I²C interface with readback capabilities. It supports Wake-on LAN via the power-down function and operates within a temperature range of –40 °C to 85 °C.

Feature Summary

• Two-output LP-HCSL clock generator compliant with PCIe Gen 1/2/3/4/5/6/7 specifications
• Low jitter performance of 0.085 ps (RMS) maximum to meet PCIe Gen 6 requirements
• Individual hardware control pins and I²C support for output enable, spread spectrum, and frequency select
• Internal 100 Ω or 85 Ω impedance matching eliminates external resistors

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 options. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer prior to procurement. Ensure the design accounts for the required 25 MHz crystal or clock input configuration.

Selection Notes

Select this model when a compact two-output solution is required for high-speed PCIe interfaces. The Si52202 is distinguished by its small 20-pin QFN footprint, which is noted as the smallest in the industry for this output count. Consider the internal line matching and adjustable slew rate features to simplify board layout and improve signal integrity compared to devices requiring external components.

Part Context

The Si52202 belongs to the Si522xx family, which also includes the Si52212 (12 outputs), Si52208 (8 outputs), and Si52204 (4 outputs). All members share similar architectural features, including low-power operation, I²C configurability, and support for PCIe Gen 1 through Gen 7 standards. The family is designed to provide scalable port counts while maintaining consistent electrical characteristics and form factors across different integration levels.

Replacement Considerations

Direct replacements within the same family include the Si52204, Si52208, and Si52212, though these offer higher output counts and may require pinout adaptation. For legacy designs, verify compatibility with older PCIe generations if migrating from previous Skyworks clock generator models.