9FGL699AKLFT

Application Specific Clock/Timing Overview

The 9FGL699AKLFT is a clock generator IC from Renesas Electronics, designed for PCI Express Gen2 applications. It functions as a low-power differential synthesizer providing six outputs. The device operates within a supply voltage range of 3.135V to 3.465V and supports a maximum frequency of 250MHz. It utilizes a Phase-Locked Loop (PLL) architecture and accepts a crystal input. The component is housed in a 32-pin QFN package with exposed pad, suitable for surface mount installation. Operating temperatures range from -40°C to 85°C.

Application Specific Clock/Timing Feature Summary

• Six-output low-power differential synthesizer optimized for PCIe Gen2
• Integrated PLL for precise clock generation
• Supports crystal input with 3.135V to 3.465V supply voltage
• Available in space-saving 32-pin QFN package

Application Specific Clock/Timing Applications

• PCI Express Gen2 clock distribution
• Server motherboard clock generation
• High-performance computing systems requiring differential clock signals

Application Specific Clock/Timing Procurement Notes

Verify the specific suffix 'AKLFT' against official Renesas documentation to confirm packaging type and lead-free status. Check current availability as clock generators may have limited stock or end-of-life statuses. Ensure compatibility with existing PCB footprints for the 32-QFN package before procurement.

Application Specific Clock/Timing Selection Notes

Select this component when a six-channel differential clock solution is required for PCIe Gen2 interfaces. Compare power consumption metrics against single-output buffers if fewer channels are needed. Verify that the 250MHz maximum frequency meets system timing requirements and that the -40°C to 85°C operating range suits the environmental conditions.

Application Specific Clock/Timing Part Context

This part belongs to the 9FGL series of intelligent clock generators from Renesas. These devices are typically used in data communication and storage subsystems where low jitter and high reliability are critical. The 9FGL699 specifically targets multi-lane PCIe architectures requiring synchronized differential clocks.

Application Specific Clock/Timing Replacement Considerations

Consult Renesas datasheets for direct pin-compatible replacements within the 9FGL series. Consider the 9FGL6241 for NVMe applications or other 9FGL variants with different output counts. Verify electrical parameters such as jitter performance and supply voltage compatibility before substitution.