741 Calle Plano

Camarillo, CA 93012, USA

Tel: +1 805.388.3700

Fax: +1 805.987.5896

www.vitesse.com

GENERAL DESCRIPTION:

10.7 Gb/s RZ or NRZ Laser Modulator Driver

VSC7992

The VSC7992 is a 10.7 Gb/s laser diode modulator driver with direct

access to the laser modulation transistors. Laser modulation

currents are set by external components allowing precision

monitoring and setting of current levels. Clock and data inputs are

differentially terminated to 50 ohm. Both Return-to-Zero (RZ) and

Non-Return-to-Zero (NRZ) data formats may be generated. The

VSC7992 is available in a 22-pin ceramic package or in die form.

APPLICA TION DIAGRAMS:

OPTICAL EYE DIAGRAMS:

Ultra Long Haul Transport Line Card

VSC1233

VSC1235

MUX

VSC9271

VSC6131

FEC

VSC1234

VSC1236

DMUX

PIN or APD

Photo Detector

Differential

MZ

Modulator

Laser

VSC7999

VSC7979

TIA

Receiver

VSC7992

RZ Driver

Ultra Long Haul Transport Line Card

VSC1233

VSC1235

MUX

VSC9271

VSC6131

FEC

VSC1234

VSC1236

DMUX

PIN or APD

Photo Detector

EAM

Laser

Receiver

VSC7999

VSC7979

TIA

VSC7992

RZ Driver

For more information on Vitesse Products visit the Vitesse web site

at www.vitesse.com or contact Vitesse Sales at (800) VITESSE

or sales@vitesse.com

Vitesse, ASIC-Friendly, FibreTimer, TimeStream and Snoop Loop are trademarks of Vitesse Semiconductor Corporation.

All other trademarks or registered trademarks mentioned herein are the property of their respective holders. Vitesse

Semiconductor Corporation ("Vitesse") retains the right to make changes to its products or specifications to improve

performance, reliability or manufacturability. All information in this document, including descriptions of features,

functions, performance, technical specifications and availability, is subject to change without notice at any time.