SI52208-A01AGM

Overview

The Skyworks Si52208-A01AGM is a low-power clock generator designed for PCI Express Gen 1 through Gen 7 and SRIS applications. It provides eight 100 MHz differential LP-HCSL outputs and one 25 MHz LVCMOS reference clock output. The device operates on a 1.5 V to 1.8 V supply with separate VDD and VDD_IO rails. Key electrical specifications include a maximum RMS jitter of 0.085 ps, an operating temperature range of –40 °C to +85 °C, and internal impedance matching options of 100 Ω or 85 Ω. It supports triangular spread spectrum modulation for EMI reduction and features individual hardware control pins alongside I²C interface capabilities.

Feature Summary

• Eight 100 MHz PCIe differential outputs compliant with Gen 1/2/3/4/5/6/7 specifications
• Low jitter performance with a maximum RMS value of 0.085 ps
• Integrated 100 Ω or 85 Ω internal line termination resistors
• Triangular spread spectrum enable/disable with selectable 0.25% or 0.5% down-spread

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 internal termination values. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer prior to procurement.

Selection Notes

Select this component when eight differential PCIe clock outputs are required within a compact footprint. Ensure the design accommodates the 1.5 V to 1.8 V power supply requirements and utilizes the available hardware control pins or I²C interface for output enable and frequency selection management.

Part Context

This part belongs to the Si522xx family, which includes the Si52212 (12-output), Si52204 (4-output), and Si52202 (2-output) variants. All members share similar architectural features, including LP-HCSL drivers and low jitter performance, but differ in output count and physical package size.

Replacement Considerations

Direct replacements within the same family include the Si52212 for higher port counts or the Si52204 for lower port counts. Verify pin compatibility and output configuration requirements before substituting.