9DB433AFILFT

Overview

The Renesas 9DB433AFILFT is a zero-delay buffer and fanout clock distribution IC designed for PCI Express (PCIe) Gen1, Gen2, and Gen3 applications. It features four differential HCSL output pairs with low phase jitter performance compliant with PCIe Gen3 specifications (<1ps rms). The device operates on a single 3.3V supply within a voltage range of 3.135V to 3.465V. It supports input frequencies from 5MHz to 166.66MHz and accepts spread spectrum inputs. Packaged in a 28-lead SSOP (10.2 x 5.3mm), it functions as a PLL-based clock multiplier or bypass buffer.

Feature Summary

• Four differential 0.7V HCSL output pairs
• PCIe Gen3 phase jitter < 1ps rms
• Supports Zero Delay Buffer and Fanout modes
• Accepts spread spectrum input signals

Applications

• PCI Express Gen1/Gen2/Gen3 clock distribution
• Server and storage system clocking
• High-speed communication equipment

Procurement Notes

Verify the specific suffix 'AFILFT' against the manufacturer's current datasheet to confirm package type (SSOP) and lead-free status. Ensure compatibility with the required operating temperature range (-40°C to +85°C) for the target application environment before procurement.

Selection Notes

Select this component when a 1:4 differential clock distribution solution is required for PCIe interfaces. Compare against the 9DB433AGLF variant if a TSSOP package is preferred instead of SSOP. Verify that the input source matches the required HCSL signaling standard.

Part Context

This part belongs to the 9DB433 family of zero-delay buffers. It serves as a downstream clock driver for main clock generators such as the 932S421 or 932SQ420. The device ensures precise phase alignment between the reference input and outputs while providing signal buffering for multiple loads.

Replacement Considerations

The 9DB433AGLF offers identical electrical functionality but utilizes a TSSOP-28 package instead of SSOP-28. Other family members like the 9DB833 provide eight outputs rather than four.