SI53208-A02AGMR

Overview

The Skyworks Si53208-A02AGMR is an 8-output PCIe clock fanout buffer supporting Gen 1 through Gen 6 specifications. It operates on a single 1.5 V to 1.8 V supply and accepts input frequencies from 10 MHz to 200 MHz, typically configured for 100 MHz. The device features low additive jitter of 0.02 ps rms maximum for Gen 6 compliance and includes internal 100 Ω or 85 Ω output impedance matching. Outputs are HCSL-compatible differential push-pull signals with adjustable slew rates. It is housed in a 48-pin QFN (6 x 6 mm) package.

Feature Summary

• 8-output clock fanout buffer compliant with PCIe Gen 1 through Gen 6 common clock and separate reference clock specifications
• Low additive jitter of 0.02 ps rms maximum to meet stringent Gen 6 requirements
• Internal 100 Ω or 85 Ω output impedance matching eliminates external termination resistors
• Individual hardware control pins and I2C controls allow independent enable/disable of each differential output pair

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape-and-reel configuration. Confirm RoHS-6 compliance status and lead frame material details via the latest product change notifications before procurement.

Selection Notes

Select this component when eight differential HCSL outputs are required for PCIe Gen 1 to Gen 6 applications. Ensure the design supports the 1.5 V to 1.8 V single-supply operation and utilizes the 48-pin QFN footprint. Verify that the input clock frequency falls within the 10 MHz to 200 MHz range.

Part Context

This part belongs to the Si532xx family, which includes the Si53212 (12 outputs) and Si53204 (4 outputs). All variants share identical electrical characteristics and functionality, differing only in the number of differential output pairs provided.

Replacement Considerations

Si53212-A02AGMR provides 12 outputs in a larger 64-pin package. Si53204-A02AGMR provides 4 outputs in a smaller 32-pin package. Both are functionally compatible but require PCB layout adjustments due to pin count differences.