9DB833AGLF

Overview

The Renesas 9DB833AGLF is an eight-output PCIe Gen3 zero-delay buffer and fanout clock distribution IC. It operates within a supply voltage range of 3.135 V to 3.465 V and supports maximum input frequencies up to 166 MHz. The device features differential HCSL output signaling with a maximum propagation delay of 0 ps. Designed for surface-mount assembly, it is housed in a TSSOP-48 package. The component functions reliably across an operating temperature range from -40 °C to +85 °C, ensuring stable clock distribution for high-speed serial interfaces.

Feature Summary

• Eight differential HCSL outputs supporting PCIe Gen3 requirements
• Zero-delay buffer mode with 0 ps maximum propagation delay
• Supports spread spectrum input signals
• Operates at input frequencies up to 166 MHz

Applications

• PCI Express Gen3 clock distribution
• Backward compatible PCIe Gen2 and Gen1 systems
• High-performance server infrastructure
• Storage area network (SAN) equipment

Procurement Notes

Verify the specific suffix 'GLF' against current manufacturer documentation to confirm RoHS compliance status and lead-free pin availability. Confirm that the TSSOP-48 package dimensions match the target PCB footprint design. Ensure the operating temperature grade (-40 °C to +85 °C) aligns with the environmental requirements of the final application system.

Selection Notes

Select this component when eight differential clock outputs are required for PCIe Gen3 applications. The zero-delay buffer architecture minimizes skew between the input reference and output clocks. Verify that the driving source, such as the 932S421 or 932SQ420, provides compatible differential HCSL signaling. Ensure the power supply rails remain strictly within the 3.135 V to 3.465 V specification during operation.

Part Context

This part belongs to the 9DB833 series of clock buffers designed specifically for PCI Express standards. It serves as a critical interface between main clock generators and peripheral devices requiring precise timing. The device replaces older generation buffers by supporting higher data rates while maintaining backward compatibility with legacy PCIe implementations.

Replacement Considerations

The 9DB833AFLFT is listed as a discontinued alternative. Designers should verify if the 9DB833AGILFT serves as a direct functional replacement, noting potential differences in packaging or manufacturing site markings.