SI53212-A02AGMR

Overview

The SI53212-A02AGMR is a 12-output PCIe clock fanout buffer from Skyworks Solutions. It supports PCIe Gen 1 through Gen 6 compliant common clock and separate reference clock specifications. The device accepts input frequencies from 10 MHz to 200 MHz and provides low-power, push-pull, HCSL-compatible differential outputs. It operates on a single 1.5 V to 1.8 V power supply with a typical dynamic current of 61 mA at 1.8 V. Key electrical parameters include a maximum additive jitter of 0.02 ps rms for Gen 6 compliance and an internal output impedance matching of either 100 Ω or 85 Ω.

Feature Summary

• 12-output low jitter buffer supporting PCIe Gen 1 through Gen 6 standards
• Low additive jitter of 0.02 ps rms maximum for Gen 6 applications
• Spread spectrum tolerant to pass through spread input clocks for EMI reduction
• Individual hardware control pins and I2C controls for per-output enable/disable

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape-and-reel configuration. Confirm RoHS-6 compliance status directly with the supplier. Ensure that the required internal termination resistance (85 Ω or 100 Ω) matches the design specification before procurement.

Selection Notes

Select this component when a high-density 12-channel distribution is required for modern PCIe architectures up to Gen 6. Consider the adjustable slew rate feature to optimize signal quality for specific board designs. Verify that the system power budget accommodates the dynamic current consumption of approximately 61 mA at 1.8 V with all outputs active.

Part Context

This part belongs to the Si532xx family, which includes the Si53208 (8-output) and Si53204 (4-output) variants. All members share similar electrical characteristics and functionality but differ in output count and physical package size. The Si53212 utilizes a 64-pin QFN package measuring 9 x 9 mm.

Replacement Considerations

The Si53208 and Si53204 are pin-compatible within their respective families but offer fewer outputs. Direct replacement requires verifying that the reduced channel count meets the application requirements. No other cross-model substitutes are documented.