9DB803DGILF

Overview

The 9DB803DGILF is an 8-output differential clock buffer from the Renesas 9DB803 series, designed for PCI Express Gen2 applications. It operates within a supply voltage range of 3.135 V to 3.465 V and supports maximum input frequencies up to 400 MHz. The device features zero propagation delay and is housed in a 48-pin SSOP package. It functions as a distribution buffer compatible with Intel DB800v2 specifications, accepting HCSL differential inputs and providing eight HCSL differential output pairs.

Feature Summary

• Provides 8 differential outputs supporting PCIe Gen2 clock distribution
• Supports zero delay buffer mode and fanout mode operation
• Operates with input frequencies ranging from 33.33 MHz to 400 MHz in bypass mode
• Housed in a 48-pin SSOP package with industrial temperature range (-40°C to +85°C)

Applications

• PCI Express Gen2 clock distribution systems
• Server and storage backplane clocking
• High-speed digital interface synchronization

Part Context

The 9DB803DGILF belongs to the 9DB803 family of differential buffers. It is typically driven by main clock generators such as the CK410B+, CK505, or CK509B. The 'D' suffix indicates the SSOP package variant, while 'GILF' denotes lead-free and RoHS compliance. This component serves as a fanout buffer to distribute a single reference clock to multiple downstream PCIe endpoints.

Replacement Considerations

The 9DB803DFLF is a commercial grade alternative with identical electrical specifications but a limited operating temperature range of 0°C to +70°C. Designers requiring industrial temperature performance must retain the 9DB803DGILF. Other variants in the family include the 9DB803AGILF for PCIe Gen3 applications.