9DB403DGILF

Overview

The Renesas Electronics 9DB403DGILF is a zero-delay clock buffer designed for PCI Express (PCIe) applications. It features one HCSL differential input and four HCSL/LVDS differential outputs, supporting frequencies up to 400 MHz. The device operates within a supply voltage range of 3.135 V to 3.465 V and draws 115 mA of operating current. It provides zero propagation delay with a maximum duty cycle distortion of 55%. Packaged in a 28-TSSOP surface-mount enclosure, it functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Zero-propagation-delay buffering for PCIe Gen1/Gen2 timing integrity
• Single HCSL differential input driving four HCSL or LVDS differential outputs
• Operates at maximum input frequency of 400 MHz
• Industrial temperature rating from -40°C to +85°C

Applications

• PCI Express (PCIe) Gen1 and Gen2 system clock distribution
• High-speed digital circuit timing synchronization
• Server and storage infrastructure clock buffering

Procurement Notes

Verify the suffix 'GILF' corresponds to the TSSOP-28 package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status via the manufacturer datasheet before integration. Ensure the design supports the specified 3.135 V to 3.465 V supply voltage range and 115 mA current consumption requirements.

Selection Notes

Select this component when zero-delay skew is critical for PCIe Gen1/Gen2 interfaces. Compare against the 9DB403DGLFT variant if commercial temperature range (0°C to +70°C) suffices for the application environment. Verify that the 28-TSSOP footprint aligns with PCB layout constraints and thermal management capabilities.

Part Context

This part belongs to the 9DB403 series of PCIe fan-out buffers. It serves as a signal integrity solution for distributing reference clocks in high-speed serial link architectures. The device replaces older buffering solutions by offering integrated HCSL/LVDS output options in a compact surface-mount package.

Replacement Considerations

The 9DB403DGLFT offers identical electrical specifications but operates within a commercial temperature range (0°C to +70°C) instead of the industrial range.