9FGV0431AKILFT

Overview

The 9FGV0431AKILFT is a clock buffer and driver integrated circuit designed for Ethernet and PCI Express (PCIe) applications. Manufactured by Renesas Electronics, this device features an internal Phase-Locked Loop (PLL) to generate precise timing signals. It accepts an HCSL input signal and provides four differential HCSL outputs with a 1:4 input-to-output ratio. The maximum operating frequency is 137.5 MHz, supported by a supply voltage range of 1.7 V to 1.9 V. The component operates within a temperature range of -40°C to 85°C and is housed in a 32-VFQFN package with exposed pads.

Feature Summary

• Integrated PLL for low-jitter clock generation
• 1:4 Input/Output Ratio with Differential HCSL Outputs
• Maximum Frequency of 137.5 MHz
• Wide Operating Temperature Range (-40°C to 85°C)

Applications

• PCI Express (PCIe) Clock Distribution
• Ethernet Timing Systems

Procurement Notes

Verify the specific suffix 'AKILFT' against official Renesas documentation to confirm pinout compatibility and RoHS status. Confirm moisture sensitivity level (MSL) handling requirements prior to assembly. Ensure the 32-QFN(5x5) footprint matches the design layout exactly.

Selection Notes

Select this component when a single HCSL source must drive four differential loads in PCIe or Ethernet designs. The 1:4 fan-out ratio reduces board space compared to discrete buffers. Verify that the 1.7V–1.9V supply voltage aligns with the system power rails and that the 137.5 MHz limit satisfies the target bus speed requirements.

Part Context

This part belongs to the 9FGV series of clock generators and buffers from Renesas. It is functionally related to other members like the 9FGV0441, though output counts and interface types may vary. The '9DBV' prefix indicates similar buffering functions, but the '9FGV' designation specifically denotes a generator/buffer combination with PLL capabilities.

Replacement Considerations

Check the 9FGV0441AKLFT for similar 100MHz PCIe applications, noting its 1:5 ratio and different output types (HCSL/LVCMOS). Verify electrical compatibility before substitution.