SI53212-A01AGMR

Overview

The SI53212-A01AGMR is a 12-output PCIe clock fanout buffer from Skyworks Solutions. It supports frequencies from 10 MHz to 200 MHz with a maximum output frequency of 100 MHz. The device operates on a single 1.425 V to 1.89 V power supply and features low additive jitter, reaching a maximum of 0.02 ps rms for PCIe Gen 6 compliance. Outputs are differential HCSL compatible with internal 100 Ω or 85 Ω impedance matching. It is housed in a 64-pin QFN package (9 x 9 mm) and functions within an operating temperature range of –40 °C to +85 °C.

Feature Summary

• 12-output low jitter buffer compliant with PCIe Gen 1 through Gen 6 specifications
• Low additive jitter of 0.02 ps rms max for Gen 6 applications
• Spread spectrum tolerant input for EMI reduction
• Individual hardware control pins and I2C controls for output enable

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm package type and termination resistance. Confirm that the required internal termination matches the design specification, as variants exist with different impedance values. Ensure the procurement channel provides valid RoHS-6 compliance documentation.

Selection Notes

Select this component when a high-performance 12-channel clock distribution solution is required for PCIe Gen 1 through Gen 6 architectures. The device eliminates external termination resistors due to integrated impedance matching. Consider the adjustable slew rate feature if signal quality optimization is necessary for specific board designs.

Part Context

This part belongs to the Si532xx family, which includes the Si53208 (8 outputs) and Si53204 (4 outputs). All members share similar electrical characteristics and functionality but differ in output count and physical package size. The Si53212 specifically utilizes a 64-pin QFN package to accommodate its 12 differential output pairs.

Replacement Considerations

The Si53208 and Si53204 are functionally similar parts within the same family but offer fewer outputs. Verify pin compatibility and output count requirements before substituting.