9DB833AGILF

Overview

The Renesas 9DB833AGILF is an eight-output PCIe Gen1/Gen2/Gen3 zero-delay buffer and fanout clock distribution IC. It operates with a supply voltage range of 3.135 V to 3.465 V and supports maximum input frequencies up to 166 MHz. The device features differential HCSL inputs and outputs, providing low phase jitter performance compliant with PCIe Gen3 specifications (<1 ps RMS). Packaged in a 48-pin TSSOP, it supports both zero-delay buffer mode for precise timing alignment and fanout mode for signal distribution.

Feature Summary

• Eight differential HCSL output pairs supporting PCIe Gen1, Gen2, and Gen3 standards
• Zero-delay buffer (ZDB) mode ensures minimal propagation delay relative to the input reference
• Low phase jitter performance: <1 ps RMS for PCIe Gen3, <3.1 ps RMS for Gen2, and <86 ps peak-to-peak for Gen1
• Operates in bypass mode from 5 MHz to 166 MHz and PLL mode from 50 MHz to 110 MHz

Applications

• PCI Express (PCIe) Gen1, Gen2, and Gen3 clock distribution networks
• Server and storage system motherboard clocking architectures
• High-speed peripheral interface timing synchronization

Procurement Notes

Verify the specific suffix 'GILF' against official Renesas documentation to confirm package type (TSSOP-48), lead-free status, and RoHS compliance. Confirm that the 'I' designation corresponds to the industrial temperature range (-40°C to +85°C) as distinct from commercial variants. Ensure sourcing channels provide valid traceability for this active component.

Selection Notes

Select the 9DB833AGILF when designing systems requiring eight buffered PCIe clock outputs with strict jitter requirements for Gen3 speeds. Compare against the 9DB833AFLFT if a different package or temperature rating is needed, noting that the latter may be obsolete. Ensure the design accommodates the 3.3V supply requirement and differential HCSL signaling levels.

Part Context

This component belongs to the 9DB833 family of zero-delay buffers designed specifically for high-speed serial interface applications. It serves as a critical timing element in complex digital systems, replacing older buffering solutions by integrating PLL functionality and multiple outputs into a single compact surface-mount package.

Replacement Considerations

The 9DB833AFLFT is listed as a similar replacement option, though availability and exact parameter matching should be verified. Other family members like the 9DB233AGLFT (2 outputs) or 9DB433AGILFT (4 outputs) offer fewer channels but share similar electrical characteristics.