9DB801CGLFT

Overview

The Renesas Electronics 9DB801CGLFT is a PLL-based clock driver belonging to the 9DB series, designed for PCI Express applications. It features eight true differential outputs and zero inverted outputs in a 48-pin PDSO package (TSSOP-48). The device operates within a supply voltage range of 3.14 V to 3.46 V and supports frequencies from 50 MHz to 200 MHz in PLL mode. It provides low cycle-to-cycle jitter of 50 ps and output-to-output skew of 100 ps, ensuring compliance with PCI Express Gen 1 specifications.

Feature Summary

• Eight differential HCSL outputs compliant with PCI Express Gen 1
• Low cycle-to-cycle jitter of 50 ps and output-to-output skew of 100 ps
• PLL-based architecture supporting 50-200 MHz operation
• 48-pin TSSOP surface-mount package

Applications

• PCI Express clock distribution in PC systems
• Embedded system clock buffering
• PCIe Gen 1 compliant motherboard designs

Part Context

The 9DB801CGLFT is part of the IDT/Renesas 9DB family, specifically derived from the DB800 Version 2.0 specification. It serves as a differential buffer for generating multiple PCIe clocks from a single source, typically driven by main clock generators such as the CK410B+, CK505, or CK509B.

Replacement Considerations

The 9DB803D is an updated variant compatible with Intel DB800v2 specifications, supporting PCIe Gen 2 speeds up to 400 MHz in bypass mode. Designers requiring higher frequency operation should evaluate the 9DB803D instead.