9DB401CGLFT-IN0

Overview

The Renesas Electronics Corporation 9DB401CGLFT is a PCI Express (PCIe) fanout buffer and zero-delay buffer IC designed for high-speed clock distribution. It features a single input to four output configuration with a maximum operating frequency of 400MHz. The device accepts HCSL differential inputs and provides both HCSL and LVDS differential outputs. It operates on a supply voltage ranging from 3.135V to 3.465V and is housed in a 28-TSSOP package. The component includes an internal PLL and is intended for specific timing applications within PCIe systems.

Feature Summary

• PCI Express Fanout Buffer with Zero-Delay characteristics
• 1:4 Input-to-Output Ratio supporting up to 400MHz
• HCSL Differential Input with HCSL and LVDS Differential Outputs
• Integrated PLL for jitter attenuation and signal integrity

Applications

• PCI Express (PCIe) clock distribution networks
• Zero-delay buffering for high-speed digital interfaces
• System timing solutions requiring low skew distribution

Procurement Notes

The 9DB401CGLFT part number is listed as Obsolete by the manufacturer, with End-of-Life notices recorded in January and February 2022. Verification of current availability requires checking authorized distributors for remaining stock or surplus inventory. Designers should confirm RoHS3 compliance status and review any Product Change Notices (PCN) regarding assembly site changes or label modifications issued prior to discontinuation.

Selection Notes

Select this component when a PCIe-specific fanout buffer with integrated PLL is required for frequencies up to 400MHz. Ensure the design supports the 3.135V to 3.465V supply range and utilizes the 28-TSSOP footprint. Verify that the system requirements align with the HCSL input and mixed HCSL/LVDS output capabilities. Due to the obsolete status, alternative components from the same family or newer generations must be evaluated for long-term production viability.

Part Context

The 9DB401CGLFT belongs to the 9DB401 series of clock buffers manufactured by Renesas Electronics. This series is specialized for PCI Express applications, offering zero-delay buffering to maintain signal phase alignment. The 'C' suffix typically denotes specific packaging or temperature grade variations within the standard 9DB401 product line, while 'GLFT' indicates the lead-free TSSOP package type.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Given the obsolete status, engineers should consult Renesas documentation for recommended replacements within the 9DB40x series or equivalent PCIe clock buffer families.