9FGV0231AKLF

Overview

The Renesas 9FGV0231AKLF is a PCIe clock generator and fanout buffer IC designed for PCI Express Gen 1, 2, and 3 applications. It features an integrated PLL to generate up to three outputs from a single crystal input at frequencies up to 100 MHz. The device operates on a 1.8 V supply voltage with a range of 1.7 V to 1.9 V. It utilizes HCSL and LVCMOS output types and is housed in a 24-VFQFPN package with exposed pads. The component supports surface mount installation and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrated PLL-based clock generation supporting PCIe Gen 1/2/3 standards
• Single crystal input converted to three differential or single-ended outputs
• Low jitter performance with typical RMS jitter of 250 ps
• Operates at 1.8 V nominal supply voltage (1.7 V to 1.9 V range)

Applications

• PCI Express root complex clock distribution
• Peripheral slot clock generation for PCIe add-in cards
• High-speed digital interface timing synchronization

Procurement Notes

Verify the specific suffix 'AKLF' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Check for Product Change Notifications (PCNs) regarding package revisions or assembly site changes. Confirm moisture sensitivity level (MSL) handling requirements prior to soldering. Ensure the ordering quantity matches the manufacturer's standard packaging unit, which is typically 490 units per tray.

Selection Notes

Select this component when a low-jitter, fixed-frequency PCIe clock source is required for Gen 1 through Gen 3 systems. It is suitable for designs needing one input and three outputs in a compact 24-pin QFN footprint. Consider the 1.8 V supply constraint and ensure the load capacitance matches the output drive requirements for HCSL or LVCMOS signaling. Verify that the 0°C to +70°C operating range meets the environmental specifications of the target application.

Part Context

The 9FGV0231 series belongs to Renesas' PhiClock family of clock generators optimized for high-speed serial interfaces. This specific model provides a non-programmable solution for standard PCIe reference frequencies. It serves as a direct replacement for legacy clock buffers in motherboard and expansion card designs requiring precise timing alignment for PCIe lanes.

Replacement Considerations

Cross-reference with the 9FGV0231AKLFT variant if tape-and-reel packaging is preferred over trays. Verify electrical equivalence with other 9FGV0231 variants before substitution, as differences may exist in output drive strength or package thermal characteristics.