9DB803DFILF

Overview

The Renesas 9DB803DFILF is an 8-output differential clock buffer designed for PCI Express Gen2 applications. It operates within a supply voltage range of 3.135 V to 3.465 V and supports maximum input frequencies up to 400 MHz. The device features zero-delay buffer mode with cycle-cycle jitter under 50 ps and phase jitter less than 3.1 ps rms for PCIe Gen2. Packaged in a 48-pin SSOP, it functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Provides 8 differential HCSL outputs compatible with Intel DB800v2 specification
• Supports zero-delay buffer and fanout modes with bandwidth programming
• Tolerant to spread spectrum modulation (0 to -0.5% down, +/- 0.25% center)
• Operates at frequencies from 33.33 MHz to 400 MHz in bypass mode

Applications

• PCI Express Gen2 system clock distribution
• Zero-delay buffering for high-speed serial interfaces
• Fanout buffering driven by CK410B+, CK505, or CK509B main clock generators

Procurement Notes

Verify the specific suffix 'DFILF' against the manufacturer's current datasheet to confirm package type and RoHS compliance status. Check for any Product Change Notifications (PCN) regarding material changes or pinout modifications before finalizing procurement plans.

Selection Notes

Select this component when an 8-channel differential buffer is required for PCIe Gen2 architectures. Ensure the design accommodates the 3.3V nominal supply tolerance and utilizes the 48-SSOP footprint. Verify that the driving source provides the necessary HCSL differential signals.

Part Context

This part belongs to the 9DB803 series of differential buffers. It serves as a downstream timing solution, typically receiving inputs from primary clock generators like the CK505 or CK509B to distribute synchronized clocks to multiple PCIe endpoints.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.