SI52204-A01BGM

Overview

The Skyworks Si52204-A01BGM is a four-output PCI Express clock generator supporting Gen 1 through Gen 7 specifications. It operates on a 1.5 V to 1.8 V supply and provides four 100 MHz differential LP-HCSL outputs alongside one 25 MHz LVCMOS reference clock. The device features internal 85 Ω or 100 Ω line matching, adjustable output slew rates, and spread spectrum capabilities for EMI reduction. Control is managed via individual hardware pins or I²C interface, with support for Wake-on LAN functionality.

Feature Summary

• Four differential PCIe outputs compliant with Gen 1/2/3/4/5/6/7 common clock and SRIS architectures
• Integrated 85 Ω or 100 Ω termination eliminating external resistors
• Triangular spread-spectrum enable for EMI reduction (0.25% or 0.5%)
• 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 portfolio documentation. Suffixes often dictate package type, temperature range, or tape-and-reel configuration. Confirm availability status directly with authorized distributors as component lifecycle stages change frequently.

Selection Notes

Select this model when four independent PCIe differential clocks are required. Ensure the design utilizes the internal impedance matching if board space is constrained. Verify that the target application supports the 1.5 V to 1.8 V operating voltage range and requires the specified low jitter characteristics for PCIe Gen compliance.

Part Context

This component belongs to the Si522xx family, which includes the Si52212 (12 outputs), Si52208 (8 outputs), and Si52202 (2 outputs). All members share similar architectural features but differ in pin count and output capacity, ranging from 20-pin to 64-pin QFN packages.

Replacement Considerations

Direct replacements within the same family include the Si52208 for higher port counts or the Si52202 for reduced requirements. Cross-family substitution requires verification of pin compatibility and electrical parameter alignment.