9DBL0851BKILFT

Overview

The 9DBL0851BKILFT is a clock buffer manufactured by Renesas Electronics, designed for high-speed digital systems. It operates with a single supply voltage of 3.135V to 3.465V and supports maximum frequencies up to 200MHz. The device features one circuit with an HCSL input and HCSL output, providing a 1:8 input-to-output ratio. It utilizes differential signaling for both input and output paths. The component is housed in a 48-VFQFN package with a bare pad, measuring 6x6mm, and is rated for operation within a temperature range of -40°C to 85°C.

Feature Summary

• Supports PCIe Zero Delay buffering architecture
• HCSL differential input and output signaling
• 1:8 fan-out ratio with 200MHz maximum frequency
• Operates on 3.3V nominal supply (3.135V–3.465V)

Applications

• PCI Express (PCIe) clock distribution
• High-performance computing server backplanes
• Storage area network infrastructure

Procurement Notes

Verify the specific suffix 'B' against official Renesas documentation to confirm pinout compatibility and electrical characteristics, as suffixes often denote package revisions or temperature grades. Confirm RoHS compliance status via the manufacturer's current datasheet before integration. Check for active production status or obsolescence notices directly from Renesas to ensure long-term availability.

Selection Notes

Select this component when a low-skew, zero-delay buffer is required for PCIe clock networks. Ensure the design accommodates the 48-VFQFN thermal pad requirements for adequate heat dissipation. Verify that the system logic levels match the HCSL output specifications. Compare against the 9DBL0851CKILF if different impedance termination or packaging options are needed.

Part Context

This part belongs to the 9DBL series of PCIe clock buffers from Renesas. It serves as a critical timing element in systems requiring precise clock synchronization across multiple receivers. The device replaces older discrete buffering solutions by integrating termination resistors and low-jitter generation capabilities into a compact surface-mount package.

Replacement Considerations

The 9DBL0851CKILFT is listed as a potential alternative in distributor catalogs. Verify functional equivalence regarding pin configuration and electrical parameters before substitution.