Functional Description

The VSC8021 and VSC8022 are high-speed SONET interface devices capable of handling serial data at rates up to 2.5Gb/s. These devices can be used for STS-3 through STS-48 SONET applications.

These products are fabricated in gallium arsenide using the Vitesse H-GaAs? E/D MESFET process which achieves high-speed and low power dissipation. These products are packaged in a ceramic 52-pin leaded ceramic chip carrier.

Features

? Differential or Single-Ended Inputs and Outputs

? Low Power Dissipation: 2.3W (Typ Per Chip)

? Standard ECL Power Supplies:

VEE = -5.2V, VTT = -2.0V

? Available in Commercial (0°C to +70°C) or Industrial

(-40°C to +85°C) Temperature Ranges

? Proven E/D Mode GaAs Technology

? 52-Pin Leaded Ceramic Chip Carrier

? Serial Data Rates up to 2.5Gb/s

? Parallel Data Rates up to 312.5Mb/s

? ECL 100K Compatible Parallel Data I/Os

? Divide-by-8 Clock for Synchronization of

Parallel Data to Interfacing Chips

? SONET Frame Recovery Circuitry

(VSC8022)

? Compatible with STS-3 to STS-48

SONET Applications