Features

Description

The OPF560 series receiver is a low cost

solution for high speed fiber optic

communication designs.

The output of the receiver is an analog,

low impedance, emitter follower voltage

source capable of driving an amplifier or

level translating circuitry. This allows the

subsequent circuitry to use the device in

either the analog mode or translated to

ECL/TTL levels for use in a digital mode

at data rates up to 155MBaud.

The receiver is comprised of a high

speed, low noise, photodiode coupled to

a transimpedance amplifier which

produces an output voltage proportional

to the input light amplitude. This hybrid

approach solves many of the problems of

high speed data link designs by placing a

pre-amplifier close to the photodiode.

The amplification of the transimpedance

amplifier makes the output signal much

less susceptible to EMI.

An AC coupled receiver application

circuit is shown. Both the 10 ohm

resistor and by-pass capacitor are

critical.

*ST is a registered trademark of AT&T.

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55

Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40

Lead Soldering Temperature (for 10 sec.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA

Product Bulletin OPF560

February 1996

125 MHz Fiber Optic Receiver

Types OPF560, OPF561, OPF562

Optek Technology, Inc.

1215 W. Crosby Road

Carrollton, Texas 75006

(972) 323-2200

Fax (972) 323-2396

This component is susceptible to damage from electrostatic discharge (ESD). Normal

static precautions should be taken in handling and assembly of this component to

prevent ESD damage or degradation.

OPF560

V

EE

OPF561

OPF562

V

EE

OUTPUT

V

CC

V

EE

OUTPUT

V

CC

V

CC

OUTPUT

8-108