9DBV0441AKILFT

Overview

The 9DBV0441AKILFT is a four-output, 1.8V PCIe zero-delay/fanout clock buffer manufactured by Renesas Electronics Corporation. It features integrated output terminations providing Zo = 100Ω for direct connection to transmission lines, eliminating external resistors. The device operates with LP-HCSL differential outputs and accepts HCSL differential inputs. It supports frequencies from 30 MHz to 137.5 MHz with typical power consumption of 65 mW in PLL mode. The component is housed in a space-saving 5x5 mm 32-VFQFPN package and includes programmable slew rate, output amplitude, and SMBus interface capabilities.

Feature Summary

• Integrated 100Ω output terminations for direct connection to transmission lines
• Four differential LP-HCSL outputs with individual OE# pins for power management
• Programmable slew rate and output amplitude for line length and environment tuning
• SMBus interface with selectable addresses for configuration without strapping pins

Applications

• PCI Express (PCIe) Gen1-Gen3 clock distribution
• System-on-Chip (SoC) clocking solutions
• Ethernet applications requiring 50MHz or 125MHz PLL operation

Procurement Notes

Verify the current lifecycle status as product availability may be subject to change. Confirm that the 32-VFQFPN package dimensions and pinout match the target PCB footprint. Ensure supply voltage requirements align with the 1.8V specification before integration into the design.

Selection Notes

Select this component when a low-power, zero-delay fanout buffer with integrated termination is required for PCIe systems. It is suitable for designs needing programmable output characteristics to optimize signal integrity across varying trace lengths. Consider alternative models if higher operating frequencies or different supply voltages are necessary.

Part Context

This part belongs to Renesas' SOC-friendly 1.8V Very-Low-Power (VLP) PCIe family. It is designed to minimize board space and power consumption while providing flexible clock management features. The device supports spread spectrum for EMI reduction and offers clean system start-up by blocking outputs until the PLL is locked.

Replacement Considerations

The 9DBV0441BKLFT is listed as a manufacturer recomended substitute. Verify compatibility regarding package, electrical parameters, and functionality before substitution.