SI52144-A01AGMR

Overview

The Skyworks SI52144-A01AGMR is a PCIe clock generator providing four differential HCSL outputs. It supports PCIe Gen 1, 2, and 3 common clock standards, with specifications compliant to Gen 4 requirements. The device operates on a 3.3 V supply and accepts a 25 MHz crystal or clock input. Key features include hardware output enable pins for each channel, spread-spectrum control via the SSON pin, and I2C programmability for dynamic adjustment of skew, edge rate, and amplitude. It utilizes a 24-pin QFN package.

Feature Summary

• Four low-power push-pull HCSL compatible differential outputs requiring no termination resistors
• Hardware output enable pins (OE0-OE3) for synchronous stopping and starting of individual clocks
• Spread-spectrum capability enabled by a dedicated hardware pin (SSON) for EMI reduction
• I2C interface supporting readback capabilities for signal integrity tuning

Applications

• Network attached storage
• Multi-function printer
• Wireless access point
• Routers

Procurement Notes

Verify the ordering suffix 'AGMR' corresponds to the tape and reel packaging variant rather than the tray-packaged 'AGM'. Confirm that the specific revision level matches the design requirements, as datasheet revisions may update electrical parameters or pin descriptions. Ensure the source documentation explicitly identifies the manufacturer as Skyworks Solutions, Inc.

Selection Notes

Select this component when four independent PCIe clock outputs are required with hardware-level enable control. The device is suitable for designs needing triangular spread-spectrum modulation to minimize electromagnetic interference. Verify compatibility with the system's 3.3 V power domain and ensure the 24-pin QFN land pattern fits the PCB layout constraints.

Part Context

The SI52144-A01AGMR belongs to the Si52144 family of PCIe clock generators. The 'A01' designation indicates the specific configuration for PCIe Gen 1/2/3 support. The 'AGMR' suffix denotes the 24-pin QFN package type supplied in tape and reel format for automated assembly processes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.