9DB803DGILFT

Overview

The Renesas 9DB803DGILFT is an eight-output differential clock buffer designed for PCI Express Gen2 applications. It operates with a supply voltage range of 3.135 V to 3.465 V and supports input frequencies up to 400 MHz in bypass mode. The device features HCSL output signaling and accepts HCSL differential inputs. Key electrical parameters include a maximum propagation delay of 0 ps, a typical power consumption of 578 mW, and phase jitter of less than 3.1 ps rms for PCIe Gen2. It is housed in a 48-pin TSSOP package.

Feature Summary

• Provides eight differential outputs compliant with Intel DB800v2 specification
• Supports zero delay buffer mode and fanout mode operation
• Tolerant to spread spectrum modulation (0 to -0.5% down, +/- 0.25% center)
• Outputs cycle-cycle jitter under 50 ps

Applications

• PCI Express Gen2 clock distribution
• Server and storage system clock buffering
• High-speed digital interface synchronization

Procurement Notes

Verify the specific suffix 'DGILFT' against official Renesas documentation to confirm package type and moisture sensitivity level. Ensure compatibility with existing PCB footprint dimensions for the 48-pin TSSOP variant. Check RoHS compliance status through manufacturer datasheets prior to integration.

Selection Notes

Select this component when eight buffered PCIe Gen2 clocks are required from a single source. It is suitable for designs utilizing CK410B+, CK505, or CK509B main clock generators. Consider thermal management due to typical power consumption of 578 mW. Verify input signal integrity matches HCSL requirements.

Part Context

This part belongs to the 9DB803 series of differential buffers manufactured by Renesas Electronics. It serves as a replacement or upgrade for legacy clock distribution components in high-performance computing platforms. The series is optimized for low jitter and skew performance in multi-lane serial link applications.

Replacement Considerations

Direct substitutes may include other 8-output PCIe Gen2 buffers from Renesas or compatible vendors offering identical pinouts and electrical specifications. Verify that alternative parts support the same HCSL input/output standards and operate within the 3.3V nominal supply range.