9DBV0441AKLFT

Overview

The 9DBV0441AKLFT is a 4-output, 1.8V PCIe fanout clock buffer from Renesas Electronics Corporation. It features integrated output terminations providing Zo=100Ω for direct connection to transmission lines, eliminating external resistors. The device operates with a supply voltage of 1.8V and supports differential LP-HCSL outputs. It includes spread spectrum compatibility for EMI reduction, programmable slew rate and amplitude, and an SMBus interface for configuration. The component is housed in a space-saving 5x5 mm 32-VFQFPN package.

Feature Summary

• Integrated 100Ω output termination for direct connection to transmission lines
• 4 differential LP-HCSL outputs with programmable slew rate and amplitude
• Spread spectrum compatible for EMI reduction
• SMBus interface with selectable addresses for system control

Applications

• PCI Express (PCIe) clock distribution systems
• Server and storage backplane designs
• High-speed digital circuit timing

Procurement Notes

Verify the specific suffix AKLFT against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure the design accounts for the 1.8V supply requirement and SMBus address settings during procurement planning.

Selection Notes

Select this component when a low-power, 1.8V PCIe clock buffer with integrated termination is required. Compare power consumption and output count against alternatives like the 9DBU0441 if different voltage levels or zero-delay architectures are needed.

Part Context

This part belongs to the 9DBV0441 family of SOC-friendly, very-low-power PCIe clock buffers. It is designed to replace discrete resistor networks by integrating output termination directly into the IC, thereby reducing board space and component count in high-speed interfaces.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility with legacy IDT parts such as the 89P3367 if migrating from older generations.