9DBV0231AKILF

Overview

The 9DBV0231AKILF is a low-power, 2-output PCIe zero-delay/fanout clock buffer manufactured by Renesas Electronics. Operating at a core voltage of 1.8V, it features LP-HCSL differential outputs and an HCSL-compatible differential input. The device supports output frequencies from 30 MHz to 137.5 MHz with typical power consumption of 35 mW in PLL mode. It is housed in a space-saving 24-pin VFQFPN package (4.0 x 4.0 mm). Key capabilities include spread spectrum compatibility, programmable slew rate and amplitude, and SMBus-selectable features for signal integrity optimization.

Feature Summary

• LP-HCSL outputs reduce board space and save four resistors compared to standard HCSL designs.
• Zero-delay buffer architecture minimizes phase jitter with pin/software selectable PLL bandwidth.
• Outputs are blocked until the PLL locks, ensuring clean system startup.
• Supports DIF power management via dedicated OE# pins.

Applications

• 1.8V PCIe Gen 1–5 Zero-Delay/Fanout Buffer systems
• High-speed digital interfaces requiring low-jitter clock distribution
• Embedded systems utilizing legacy controllers with 3.3V tolerant SMBus

Procurement Notes

Verify the specific suffix 'AKILF' against the official datasheet to confirm package dimensions and moisture sensitivity level. Ensure the ordering quantity aligns with the manufacturer's reel or tray specifications. Confirm RoHS compliance status through the latest product change notifications before procurement.

Selection Notes

Select this component when a 1.8V supply is available and LP-HCSL signaling is required to minimize power and board area. Compare against the 9DBU0231 if a 1.5V core voltage is necessary for the application. Verify that the 137.5 MHz maximum frequency meets the target bus speed requirements.

Part Context

This part belongs to the IDT/Renesas 9DBV0231 family of ultra-low-power PCIe clock buffers. It serves as a fanout buffer and zero-delay buffer for high-speed serial links. The device integrates configuration options via strapping pins or SMBus, allowing flexibility in slew rate and amplitude tuning without external components.

Replacement Considerations

The 9DBU0231 is a similar 2-output buffer but operates at 1.5V instead of 1.8V. The 9DBV0431 offers 4 outputs in a different package. Verify pin compatibility and voltage levels before substituting.