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