General Description

The VSC7128 contains six Port Bypass Circuits (PBCs), dual embedded Clock Recovery Unit repeaters (CRU) and dual Signal Detect Units (SDU). These functions are integrated into a single part to minimize circuit size, part count, cost, high frequency routing and jitter accumulation. Together, they allow for optimized designs of FC-AL JBOD systems that provide resiliency and hot insertion/removal of disk drives. The PBCs configure the FC-AL loop to either include or exclude each drive.

Features

• Supports ANSI X3T11 1.0625Gb/s FC-AL Disk Attach for Resiliency

• Dual Repeaters (CRUs) Improve Signal Quality

• Six Port Bypass Circuits (PBCs) for Resiliency

• Dual Digital Signal Detect Units (SDUs)

• Fully Differential for Minimum Jitter

• Selectable REFCLK: 53.125 / 106.25MHz

• TTL Bypass Select

• 3.3V Supply, 1.3W

• 64-Pin, 14 mm Thermally Enhanced PQFP