9DBV0431AKILF

Overview

The 9DBV0431AKILF is a PCIe clock buffer and driver manufactured by Renesas Electronics. It operates with a single HCSL input and provides four differential HCSL outputs, functioning as a fanout buffer for PCI Express applications. The device supports maximum frequencies up to 137.5MHz and requires a supply voltage between 1.7V and 1.9V. Designed for surface mount installation, it is housed in a 32-QFN (5x5) package with exposed pads. The component is rated for an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Provides one-to-four fanout capability from HCSL input to differential HCSL outputs
• Supports maximum frequency of 137.5MHz for PCIe Gen 1/2/3 compliance
• Operates on a 1.7V to 1.9V power supply within the -40°C to +85°C temperature range
• Utilizes a compact 32-VFQFN (5x5mm) surface-mount package

Applications

• PCI Express (PCIe) Gen 1, 2, and 3 clock distribution networks
• Ethernet controller clock buffering
• High-speed digital system timing architectures requiring low skew distribution

Procurement Notes

Verify the specific suffix 'KILF' against the manufacturer's official datasheet to confirm packaging details, such as tape and reel quantities, and lead-free status. Ensure that the ordering information matches the exact electrical specifications required for the target design, particularly regarding the 1.8V nominal supply voltage tolerance.

Selection Notes

Select this component when a single-ended HCSL source must drive multiple differential loads in a PCIe topology. Confirm that the load capacitance and trace impedance requirements align with the internal termination characteristics if applicable. Compare against other members of the 9DBV series for varying output counts or package sizes based on board space constraints.

Part Context

This part belongs to the 9DBV family of PCIe clock buffers. It serves as a signal integrity solution for distributing reference clocks in high-speed interfaces. The '9DBV' prefix typically denotes a 1.8V PCIe compliant buffer, distinguishing it from 3.3V variants like the 9DML series or lower voltage LP-HCSL devices.

Replacement Considerations

Direct replacements within the same family include the 9DBV0431AKLF (tray packaging) or other pin-compatible variants in the 9DBV series. Verify that any substitute maintains the same HCSL-to-differential-HCSL conversion and frequency capabilities.