VITESSE

SEMICONDUCTOR CORPORATION

Preliminary Data Sheet

VSC7958

2.5Gb/s High Speed Limiting Post Amplifier

for OC-48/SDH-16 Applications

G52184-0, Rev 3.0

Page 1

05/14/01

© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012

Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com

Internet: www.vitesse.com

Features

General Description

The Vitesse high speed limiting amplifier is intended for use as a post amplifier in wide band fiber optic

links with data rates up to 2.5Gb/s. This amplifier provides very high sensitivity and broadband operation with a

fully differential architecture. Additional features include on-chip, offset-correction circuitry to provide excel-

lent pulse width distortion characteristics.

VSC7958 Block Diagram

• 2.5Gb/s Data Rates (OC-48/SDH-16)

• Input Offset Error Cancellation

• Single 5V Power Supply

• Fully Differential Architecture

A1

A2

+

-

VREF-

50

50

VIN+

VIN-

VREF+

VSS

GND

VOUT-

Chip Boundary

VOUT+

VBF

VBS

VBR