DIOPI6C20800SIAEX

Overview

The PI6C20800SIAEX is an industrial-grade PCI Express (PCIe) clock buffer designed to distribute high-speed clock signals across eight differential HCSL outputs. It features an integrated Phase-Locked Loop (PLL) for precise clock synchronization and supports frequencies up to 400MHz, making it suitable for high-performance computing and data center hardware. This device operates from a 3.3V nominal supply and includes an SMBus interface for configuration and output control.

Why Choose This Part

The 1:8 output ratio allows for significant component reduction by replacing multiple smaller buffers with a single clock source. It features low power consumption with a 250mA maximum operating current and an 80uA shutdown mode for energy-efficient designs. The SMBus interface provides granular control, allowing engineers to individually enable or disable outputs to reduce EMI and power waste.

Applications

Getting Started

Designers should ensure the HCSL outputs are properly terminated with 50-ohm resistors to ground to maintain signal integrity at 400MHz. The SMBus interface requires pull-up resistors for communication with the host controller to manage output bank settings. Reference the 48-TSSOP footprint layout guidelines to minimize differential pair skew and ensure adequate decoupling of the 3.3V VDD pins.