SI52146-A04AGMR

Overview

The SI52146-A04AGMR is a high-performance PCIe clock generator manufactured by Skyworks Solutions Inc. It sources six PCIe clocks from a 25 MHz crystal or clock input, supporting Gen 1, Gen 2, Gen 3, and Gen 4 standards. The device operates within a supply voltage range of 3.135 V to 3.465 V and features a maximum output frequency of 100 MHz with a maximum input frequency of 25 MHz. It utilizes a QFN-48 package, draws 85 mA during operation, and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Generates six dedicated PCIe clock outputs compatible with multiple generation standards
• Accepts a single 25 MHz crystal or external clock signal as the primary reference input
• Designed for surface-mount assembly using a compact QFN-48 package configuration

Applications

• PCIe Gen 1, Gen 2, Gen 3, and Gen 4 system designs
• Motherboards requiring multi-lane clock distribution
• Server and workstation platforms needing precise timing synchronization

Procurement Notes

Verify that the specific suffix A04 corresponds to the required output configuration and pinout before integration. Confirm RoHS compliance status and ensure the QFN-48 thermal pad requirements are met in the PCB layout design to maintain operational reliability within the specified temperature range.

Selection Notes

Select this component when a design requires exactly six synchronized PCIe clock outputs derived from a single 25 MHz reference source. It is suitable for applications demanding support across all major PCIe generations without requiring multiple discrete oscillators, simplifying the bill of materials and board space utilization.

Part Context

This part belongs to the SI52146 series of clock generators from Skyworks Solutions. The series is engineered specifically for PCI Express infrastructure, providing stable timing signals for high-speed data transmission interfaces. The A04 variant denotes a specific factory-programmed configuration within this family.

Replacement Considerations

The SI52146-A01AGMR is a documented substitute within the same series offering similar functionality.