9DBV0541AKILF

Overview

The 9DBV0541AKILF is a 5-output PCIe fanout clock buffer manufactured by Renesas Electronics. It operates with a single HCSL differential input and provides five LP-HCSL differential outputs, supporting frequencies from 1 MHz to 200 MHz. The device functions at a core voltage of 1.8 V, with typical power consumption of 45 mW. It features integrated 100-ohm terminations for direct connection to transmission lines, eliminating external resistors. Packaged in a space-saving 32-pin VFQFPN (5x5 mm) format, it supports spread spectrum modulation for EMI reduction and includes output enable pins for power management.

Feature Summary

• Five differential LP-HCSL outputs with integrated 100-ohm terminations
• Single HCSL differential input compatible with common clock sources
• Spread spectrum capability for EMI reduction
• SMBus interface with selectable addresses for configuration optimization

Applications

• PCI Express Gen 1 through Gen 5 clock distribution
• High-performance computing systems requiring low jitter clocking
• Server and storage infrastructure board designs

Procurement Notes

Verify the specific suffix 'KILF' against the manufacturer's official datasheet to confirm package type and lead finish specifications. Confirm current availability status as component lifecycles may change. Ensure compatibility with existing SMBus addressing schemes if multiple devices are used on the same bus segment.

Selection Notes

Select this component when a 1:5 fanout ratio is required for PCIe applications. The integrated termination resistors reduce bill of materials count and board space compared to standard HCSL buffers. Verify that the system design can accommodate the 1.8 V supply voltage and that the input clock source matches the HCSL signaling requirements.

Part Context

This part belongs to the 9DBV05x1 family of 1.8V PCIe fanout clock buffers, which also includes variants with different output counts such as the 9DBV0741 and 9DBV0941. These devices share similar architectural features including SMBus configurability and integrated terminations, differing primarily in the number of available output channels.

Replacement Considerations

Direct functional replacements within the same family include the 9DBV0741 and 9DBV0941, though these offer higher output counts. For identical 5-output configurations, verify cross-references with other manufacturers offering PCIe fanout buffers with LP-HCSL outputs and 1.8 V operation.