9DBL0252BKILF

Overview

The 9DBL0252BKILF is a 3.3V PCIe Zero-Delay Buffer manufactured by Integrated Device Technology, now part of Renesas Electronics Corporation. It provides two low-skew output clocks derived from a single input, designed to eliminate clock skew in high-speed serial interfaces. The device utilizes a Phase-Locked Loop (PLL) architecture to maintain zero input-to-output delay while ensuring signal integrity for PCI Express applications. It operates within a standard industrial temperature range and is packaged in a lead-free, RoHS-compliant format suitable for surface-mount assembly.

Feature Summary

• Two-output configuration optimized for PCIe Gen1/Gen2 signaling
• Zero-delay buffer operation with <250 ps output skew
• 3.3V operating voltage with full CMOS outputs
• Integrated PLL for jitter attenuation and phase alignment

Applications

• PCI Express root complex and endpoint clock distribution
• High-speed data acquisition systems requiring precise timing
• Telecommunications infrastructure equipment
• Industrial automation controllers with serial communication interfaces

Procurement Notes

Verify the manufacturer designation carefully, as this component was originally produced by Integrated Device Technology (IDT). Following IDT's acquisition by Renesas Electronics, supply chain documentation may reflect either entity. Confirm the specific package variant and temperature grade against current datasheets to ensure compatibility with existing board designs.

Selection Notes

Select this component when a dual-channel zero-delay buffering solution is required for 3.3V logic families. Ensure the design supports the necessary PLL loop bandwidth for the target application's jitter requirements. Compare against higher-output variants like the 9DBL04 or 9DBL06 if additional clock lanes are needed later in the design cycle.

Part Context

This part belongs to the 9DBL series of zero-delay buffers, which are widely used in networking and computing platforms. The 'BK' suffix typically denotes a specific package type and pinout configuration distinct from other members of the family. These devices serve as critical timing elements in systems where clock domain synchronization is mandatory for data integrity.

Replacement Considerations

Direct replacements include the 9DBL0252BKILFT (tape and reel version) or the generic 9DBL0242. Cross-voltage alternatives such as the 2305 series require level shifting considerations. Verify pin-to-pin compatibility before substituting with other manufacturers' PCIe buffers.