9DBU0631AKILF

Overview

The 9DBU0631AKILF is a PCI Express zero-delay buffer and fanout clock generator manufactured by Renesas Electronics. It accepts an HCSL differential input and provides six LP-HCSL differential outputs with a 1:6 ratio. The device operates at a maximum frequency of 167 MHz within a supply voltage range of 1.425 V to 1.575 V. Designed for low power consumption, it features a typical operating current of 8 mA and dissipates approximately 47 mW. The component is housed in a 40-VFQFPN package with exposed pads, suitable for surface mount installation.

Feature Summary

• PCIe Zero-Delay Buffer: Provides jitter attenuation and fanout capabilities for PCIe Gen1-Gen3 applications.
• Signal Compatibility: Accepts HCSL differential inputs and generates LP-HCSL differential outputs, reducing external resistor requirements.
• Low Power Operation: Typical power consumption of 35 mW in PLL mode with an operating current of 8 mA.
• Compact Packaging: Available in a space-saving 40-pin VFQFPN (5x5 mm) package.

Applications

• PCI Express (PCIe) clock distribution systems
• Jitter attenuation for high-speed serial links
• Fanout buffering for system timing architectures

Procurement Notes

Verify the suffix 'LF' indicates lead-free compliance and RoHS adherence. Confirm the package variant matches the 40-VFQFPN specification. Check manufacturer documentation for moisture sensitivity levels and recommended reflow soldering profiles to ensure proper handling during assembly.

Selection Notes

Select this component when a single HCSL source must drive up to six LP-HCSL loads in a PCIe environment. Ensure the design supports the 1.425 V to 1.575 V supply range. Verify that the 167 MHz maximum frequency meets the target bus speed requirements and that the 40-pin footprint fits the PCB layout constraints.

Part Context

This part belongs to the 9DBU0631 series of ultra-low-power PCIe clock buffers. It serves as a direct replacement or upgrade for legacy clock generators requiring lower power dissipation and reduced board space while maintaining signal integrity for PCIe standards.

Replacement Considerations

The 9DBU0631AKILFT is a tape-and-reel variant of the same electrical device. Cross-reference with other members of the 9DBU0631 family if different packaging options are required.