9FGV0441AKILF

Application Specific Clock/Timing Overview

The Renesas 9FGV0441AKILF is a PCI Express (PCIe) clock generator and fan-out buffer designed for PCIe Gen 1–4 applications. It features a single PLL circuit with one crystal input and five outputs, supporting frequencies up to 100MHz. The device operates on a 1.7V to 1.9V supply voltage and utilizes LP-HCSL differential signaling alongside LVCMOS outputs. Packaged in a space-saving 32-VFQFPN (5x5mm) exposed pad format, it supports an operating temperature range of -40°C to 85°C.

Application Specific Clock/Timing Feature Summary

• Integrated 100Ω differential output terminations reduce component count and board space.
• Supports selectable spread spectrum levels (0%, -0.25%, or -0.5%) for EMI reduction.
• Programmable slew rate and output amplitude allow tuning for various line lengths and environments.
• Differential outputs are blocked until the PLL locks, ensuring clean system startup.

Application Specific Clock/Timing Applications

• PCI Express Gen 1 through Gen 4 systems
• System-level modules requiring precise timing
• Low-power embedded designs

Application Specific Clock/Timing Procurement Notes

Verify the specific suffix 'AKILF' against the manufacturer's official datasheet to confirm package type, lead finish, and moisture sensitivity level. Ensure compatibility with the required 1.8V supply and crystal input frequency before procurement.

Application Specific Clock/Timing Selection Notes

Select this component for designs requiring a single-input, five-output clock distribution solution for PCIe interfaces. Confirm that the 32-VFQFPN footprint fits the PCB layout and that the 1.8V supply rail is available. Verify thermal requirements for the -40°C to 85°C industrial temperature range.

Application Specific Clock/Timing Part Context

This part belongs to the 9FGV0441 family of very-low-power clock generators. It is distinct from mux variants like the 9DMV0441 and higher-voltage counterparts like the 9FGL0441. The AKILF designation typically indicates specific packaging and environmental compliance attributes within the product line.

Application Specific Clock/Timing Replacement Considerations

Direct replacements include other members of the 9FGV0441 series with compatible suffixes. Cross-family substitution requires verifying pinout compatibility and electrical parameters against the target application requirements.