9DBV0441AKLF

Overview

The 9DBV0441AKLF is a four-output, 1.8V PCIe zero-delay/fanout clock buffer manufactured by Renesas Electronics. It features integrated output terminations providing Zo=100Ω for direct connection to 100Ω transmission lines, eliminating external resistors. The device operates with LP-HCSL outputs and accepts HCSL differential inputs. It supports spread spectrum modulation for EMI reduction and includes programmable slew rate and output amplitude settings. The component is housed in a space-saving 5x5 mm 32-VFQFPN package.

Feature Summary

• Integrated 100Ω output termination saves board space and components
• Zero-delay architecture minimizes propagation delay
• Programmable slew rate and output amplitude for signal integrity tuning
• Spread spectrum compatible for EMI reduction

Applications

• PCI Express (PCIe) Gen1-Gen3 clock distribution
• Ethernet applications requiring precise clocking
• System-on-Chip (SoC) clock management

Procurement Notes

Verify RoHS compliance status through official Renesas documentation before procurement. Confirm the specific suffix 'AKLF' matches the required packaging and temperature grade. Check current production lifecycle status as clock buffers may undergo obsolescence notices. Ensure supply chain sources provide valid traceability for industrial or infrastructure markets.

Selection Notes

Select this component when a low-power, 1.8V PCIe clock buffer with integrated termination is required. Compare against the 9DMV0441 series if multiplexing functionality is needed instead of simple fanout. Verify that the 32-VFQFPN package fits the PCB layout constraints. Ensure input clock source compatibility with HCSL signaling standards.

Part Context

The 9DBV0441 belongs to Renesas' SOC-Friendly 1.8V Very-Low-Power (VLP) PCIe family. It is part of the broader 9DBV0441 series, which includes variants like the 9DBV0441BKLF. This series targets high-performance computing and networking systems requiring efficient clock distribution with minimal power consumption.

Replacement Considerations

The 9DBV0441BKLF is a manufacturer-recommended alternative within the same family. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Check for any differences in packaging or temperature range between the AKLF and BKLF suffixes.