9DB403DGLFT

Overview

The Renesas Electronics 9DB403DGLFT is a clock buffer within the 9DB403 series, designed for PCI Express applications. It features one HCSL input and four outputs supporting HCSL and LVDS signaling. The device operates with a maximum input frequency of 400 MHz and maintains a maximum propagation delay of 0 ps. Power supply requirements range from 3.135 V to 3.465 V, with a typical operating current of 115 mA. It is housed in a 28-TSSOP package and functions within an industrial temperature range of 0°C to +70°C.

Feature Summary

• Zero-delay buffering with 0 ps maximum propagation delay
• Supports PCIe Gen1-2 standards with 1:4 fan-out ratio
• Dual output signaling options including HCSL and LVDS
• Operates on a single 3.3V power supply (3.135V–3.465V)

Applications

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

Procurement Notes

Verify the suffix 'GLFT' corresponds to the TSSOP-28 package and the 0°C to +70°C commercial/industrial temperature grade. Confirm RoHS compliance status via the manufacturer datasheet, as environmental certifications may vary by production batch or region. Ensure the ordering quantity matches the reel packaging specifications provided by the supplier.

Selection Notes

Select this component when a zero-delay buffer is required for PCIe Gen1-2 interfaces. The 9DB403DGLFT is appropriate for designs needing both HCSL and LVDS output flexibility from a single HCSL source. Compare against the 9DB403DGILFT if an extended -40°C to +85°C temperature range is necessary, as the suffix indicates the specific thermal rating.

Part Context

This part belongs to the Renesas 9DB403 family of PCI Express clock buffers. It serves as a distribution solution for high-speed serial links. Related variants include the 9DB403DFILFT, which utilizes a 28-SSOP package, and the 9DB403DGILFT, which offers an extended temperature range. All share the core 1:4 buffering architecture.

Replacement Considerations

The 9DB403DGILFT is a verified alternative offering the same electrical performance but with an extended operating temperature range of -40°C to +85°C. Verify that the PCB footprint accommodates the identical 28-TSSOP package dimensions.