SI53204-A01AGM

Overview

The SI53204-A01AGM is a 4-output PCIe clock fanout buffer designed for Gen 1 through Gen 6 compliance. It operates on a single 1.5 V to 1.8 V supply and accepts input frequencies from 10 MHz to 200 MHz. The device features low additive jitter, with a maximum of 0.02 ps rms for Gen 6 applications. Outputs are HCSL-compatible differential pairs with adjustable slew rates and internal impedance matching. It supports spread spectrum tolerance and individual hardware or I2C output enable controls.

Feature Summary

• 4-output 100 MHz PCIe Gen 1–Gen 6 compliant clock fanout buffer
• Low additive jitter: 0.02 ps rms max (Gen 6)
• Single 1.5 V to 1.8 V power supply with HCSL compatible outputs
• Spread spectrum tolerant and supports Intel QPI/UPI standards

Applications

• Data centers
• Servers
• Storage systems
• PCIe add-on cards
• Communications equipment

Procurement Notes

Verify the specific A01A suffix configuration against the official Skyworks datasheet to ensure correct output impedance and control pin settings. Confirm package availability in the 32-pin QFN (5 x 5 mm) format required for this model variant.

Selection Notes

Select the SI53204 when four differential clock outputs are required for PCIe Gen 1 through Gen 6 designs. Ensure the design accommodates the 32-pin QFN footprint and provides adequate thermal vias for the ground pad. Verify that the system power supply falls within the 1.5 V to 1.8 V operating range.

Part Context

This component belongs to the Si532xx family, which includes the Si53212 (12-output) and Si53208 (8-output). All variants share similar electrical characteristics and functionality but differ in output count and package size. The Si53204 specifically utilizes a compact 32-pin QFN package.

Replacement Considerations

Direct replacements within the same family include the Si53208 and Si53212, though these offer higher output counts and different package footprints. Cross-family substitution requires verification of pin compatibility and electrical specifications.