SI52143-A01AGM

Overview

The Skyworks SI52143-A01AGM is a quad-output PCIe clock generator with an integrated 25 MHz reference clock output. It supports PCI-Express Gen 1, Gen 2, Gen 3, and Gen 4 common clock standards, as well as Gen 3 SRNS compliance. The device provides four differential HCSL-compatible outputs and one single-ended 25 MHz reference clock. It operates on a 3.3 V supply within the industrial temperature range of -40 to 85 °C. Key features include hardware output enable pins for synchronous stopping and starting, spread-spectrum capability via the SSON pin, and I2C programmability for dynamic control of skew, edge rate, and amplitude.

Feature Summary

• Supports PCI-Express Gen 1 through Gen 4 common clock and Gen 3 SRNS specifications
• Provides four differential HCSL-compatible outputs and one 25 MHz reference clock
• Features dedicated hardware OE pins for synchronous start/stop of individual outputs
• Includes triangular spread-spectrum profile (-0.5%) for EMI reduction
• Offers I2C interface for readback capabilities and dynamic signal integrity tuning

Applications

• Network attached storage (NAS)
• Multi-function printers
• Wireless access points
• Routers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation. The 'GM' suffix indicates a 24-pin QFN package in the industrial temperature range (-40 to 85 °C). Confirm availability status directly with authorized distributors or the manufacturer, as component lifecycle stages can change without notice.

Selection Notes

Select this component when designing systems requiring compliant clocks for multiple PCIe lanes across Gen 1 to Gen 4 speeds. Ensure the design accommodates the 24-pin QFN package dimensions (4.0 x 4.0 mm) and utilizes the recommended land pattern. Verify that the application requires the specific jitter performance metrics defined for PCIe Gen 3 and Gen 4 common clock modes.

Part Context

The SI52143-A01AGM belongs to the Si52143 family of PCIe clock generators manufactured by Skyworks Solutions. This family is designed to replace discrete clocking solutions in high-speed serial link applications. The A01AGM variant specifically denotes the fixed-frequency configuration housed in a lead-free 24-pin QFN package suitable for surface-mount assembly.

Replacement Considerations

The datasheet lists the Si52143-A01AGMR as a tape-and-reel version of the same functional device. No other direct cross-model replacements are documented in the provided source material.