SI53019-A02AGMR

Overview

The SI53019-A02AGMR is a high-performance clock buffer designed for Intel QuickPath Interconnect (QPI) and PCI Express Gen 3 applications. It features a single differential input and nineteen differential outputs, supporting frequencies up to 133.33 MHz. The device operates within a supply voltage range of 3.135 V to 3.465 V and is housed in a 72-pin QFN package measuring 10x10 mm. It supports surface mount installation and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Supports Intel QPI and PCIe Gen 3 signaling standards
• Provides nineteen differential output channels
• Features low jitter performance for signal integrity

Applications

• Intel QuickPath Interconnect (QPI) systems
• PCI Express Gen 3 interface buffering
• High-speed server and storage backplanes

Procurement Notes

Verify the specific suffix 'A02AGMR' against the manufacturer's current datasheet revision to ensure compatibility with target design requirements. Confirm that the 72-QFN package dimensions and pinout match the PCB footprint exactly. Check for any recent updates regarding lead-free compliance or RoHS status before finalizing procurement documentation.

Selection Notes

Select this component when designing systems requiring distribution of a single reference clock to multiple PCIe or QPI endpoints. Ensure the input frequency matches the source oscillator specification of 133.33 MHz. Verify that the power supply voltage remains within the specified 3.135 V to 3.465 V range to maintain optimal timing performance and signal quality.

Part Context

This part belongs to Skyworks Solutions' application-specific clock and timing IC family. It serves as a critical buffer element in high-speed digital interfaces, replacing discrete logic solutions with a highly integrated single-chip alternative. The device simplifies board layout by providing matched skew outputs for parallel data paths.

Replacement Considerations

Direct replacement requires verifying pin-to-pin compatibility with the SI53019 series. Cross-reference the datasheet for any functional differences in output drive strength or power consumption between revisions.