9DB403DGLF

Overview

The Renesas Electronics 9DB403DGLF is a PCI Express (PCIe) zero-delay buffer clock distribution IC designed for high-speed signal integrity. It features a single HCSL input that fans out to four differential outputs supporting both HCSL and LVDS logic levels. The device operates within a supply voltage range of 3.135 V to 3.465 V and supports maximum input frequencies up to 400 MHz. It is housed in a 28-TSSOP package with an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Zero-delay buffering architecture for PCIe Gen1/Gen2 applications
• Single HCSL input driving four differential outputs
• Flexible output compatibility with HCSL and LVDS standards
• Maximum operating frequency of 400 MHz

Applications

• PCI Express timing solutions
• Clock distribution networks
• High-speed digital system synchronization

Procurement Notes

Verify the specific suffix 'DGILF' against datasheets, as 'DGLF' may indicate a different packaging variant such as tape-and-reel versus tube. Confirm RoHS compliance status and check for active production or obsolescence notices via manufacturer PCNs before procurement.

Selection Notes

Select this component when a low-jitter, zero-delay fan-out solution is required for PCIe interfaces. Ensure the design accommodates the 3.3V nominal supply constraints and verify that the TSSOP-28 footprint aligns with PCB layout capabilities.

Part Context

This part belongs to the 9DB403 series of PCIe buffers. Variants like 9DB403DGILF and 9DB403DGLFT share identical electrical characteristics but differ in shipping packaging formats, specifically distinguishing between tube and reel configurations.

Replacement Considerations

The 9DB403DFLF serves as a functional alternative featuring a 28-SSOP package instead of TSSOP. Designers must evaluate pin-to-pin compatibility and thermal dissipation differences between the SSOP and TSSOP form factors.