SI53159-A01AGMR

Overview

The SI53159-A01AGMR is a nine-output fanout buffer designed for PCIe Gen 1, Gen 2, Gen 3, and Gen 4 common clock applications. It operates on a 3.3 V supply (3.135 V to 3.465 V) with an input frequency range of 100 MHz to 210 MHz and a maximum output frequency of 100 MHz. The device features low additive jitter, including 0.10 ps RMS phase jitter for PCIe Gen 3 and Gen 4. It utilizes a 48-pin QFN package and supports I2C control with readback capabilities.

Feature Summary

• Nine differential outputs compliant with PCIe Gen 1 through Gen 4 specifications
• Low power consumption with dynamic supply current of 60 mA at 100 MHz
• Integrated I2C interface for individual output enable/disable control
• Supports spread spectrum input and includes hardware OE pins

Applications

• Network attached storage systems
• Servers requiring multi-lane clock distribution
• Wireless access points
• Multi-function printers

Procurement Notes

Verify the 'R' suffix in the part number indicates tape and reel packaging rather than tray packaging. Confirm the extended temperature rating (-40°C to +85°C) matches system requirements. Ensure the 48-pin QFN land pattern adheres to IPC-7351 guidelines for proper solder paste application.

Selection Notes

Select this component when nine buffered differential clocks are required from a single source. It is suitable for designs needing low jitter performance for high-speed serial interfaces like PCIe Gen 4. Verify that the 0.7 V differential swing meets the input requirements of downstream receivers.

Part Context

This model belongs to the Si53159 family of PCIe clock buffers. The -A01AGM variant uses tray packaging, while the -A01AGMR variant specifically denotes tape and reel packaging for automated assembly processes. Both share identical electrical characteristics and pinouts.

Replacement Considerations

The SI53159-A01AGM is a direct functional replacement differing only in packaging format. Other Skyworks devices such as the SI53154 or SI53156 offer fewer outputs (4 or 6 respectively) but share similar electrical parameters.