9FG108EGLFT

Overview

The Renesas 9FG108EGLFT is a single-circuit clock generator and PLL frequency synthesizer designed for high-speed digital interfaces. It operates with a supply voltage range of 3.135V to 3.465V and supports a maximum output frequency of 400MHz. The device accepts crystal or clock inputs and provides nine HCSL outputs in a 1:9 input-to-output ratio. It features differential output capability and is housed in a 48-TFSOP package with a width of 6.10mm. The component functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Integrates a Phase-Locked Loop (PLL) for precise frequency synthesis up to 400MHz.
• Provides nine High-Speed Current-Logic (HCSL) outputs with differential support.
• Supports spread spectrum clocking for electromagnetic interference reduction.
• Compatible with Intel CPU server, PCI Express (PCIe), and SATA architectures.

Applications

• Intel CPU server systems
• PCI Express (PCIe) interface clocking
• SATA storage controller timing

Procurement Notes

Verify the specific suffix 'EG' against the target design requirements, as it denotes the commercial temperature grade (0°C to 70°C). Confirm that the 48-TFSOP package dimensions align with the PCB footprint. Ensure the 3.135V–3.465V supply voltage matches the system power rails before procurement.

Selection Notes

Select this component when a fixed-ratio 1:9 clock distribution is required for PCIe or SATA applications. The HCSL output type is suitable for low-power, high-speed signaling. Consider the industrial grade variant if operation below 0°C is necessary. Verify that the 400MHz maximum frequency meets the bandwidth requirements of the connected peripherals.

Part Context

The 9FG108EGLFT belongs to the 9FG108 family of clock generators from Renesas Electronics. This series is engineered specifically for data communication and computing infrastructure. The part serves as a central timing source, replacing multiple discrete oscillators to simplify board layout and reduce component count in complex multi-lane serial link designs.

Replacement Considerations

The 9FG108EFLFT is a pin-compatible alternative available in a 48-BSSOP package. Designers must verify the mechanical footprint differences between TFSOP and BSSOP packages during substitution. Electrical parameters remain consistent, but thermal characteristics may vary slightly due to package geometry changes.