VITESSE

SEMICONDUCTOR CORPORATION

Advance Product Information

VSC7710

Photodetector/Transimpedance Amplifier

Family for Optical Communication

G52139-0, Rev 2.2

Page 1

04/02/01

© 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 VSC7710 integrated PIN Photodetector/Transimpedance Amplifiers provides a highly integrated solu-

tion for converting 1300 nm light from a fiber optic communications channel into a differential output voltage.

The benefits of Vitesse Semiconductor’s Gallium Arsenide H-GaAs-III process are fully utilized to provide a

very high bandwidth and low noise amplifier. The PIN detector is 75

µm in diameter. The detector bias is sup-

plied internally eliminating the need for a separate bias connection. The sensitivity, duty cycle distortion and jit-

ter meet or exceed all Fibre Channel and Gigabit Ethernet application requirements. Parts are available in flat-

windowed or lensed packages.

The use of a photodetector and transimpedance amplifier hybrid, reduces the input capacitance, resulting in

higher sensitivity and bandwidth and improved speed of response. These parts can easily be used in developing

Fibre Channel and Gigabit Ethernet electro-optic Receivers for the 900-1600 nm spectral range which exhibit

very high performance and ease of use.

VSC7710 Block Diagram

Part Number

Data Rate

(Gb/s)

Bandwidth

(MHz)

Input Noise

(

µW rms)

Optically Active Area

(

µm diameter)

VSC7710

1.25

1300

.22

75

• Integrated Photodetector/Transimpedance Ampli-

fier Family Optimized for High Speed Optical

Communications Applications

• Integrated AGC

• Fibre Channel and Gigabit Ethernet

• High Bandwidth

• Low Input Noise Equivalent Power

• Single 5V Supply

D0

D1

+5V

+

_