SFH551-1(2007) View Datasheet(PDF) - Avago Technologies

Part Name

Description

Manufacturer

SFH551-1
(Rev.:2007)

Integrated Photo Detector Receiver for Plastic Fiber Plastic Connector Housing

Avago Technologies 

SFH551/1-1

SFH551/1-1V

Integrated Photo Detector Receiver for Plastic Fiber

Plastic Connector Housing

Data Sheet

Description

The SFH551/1V is a transimpedance amplifier with digital

TTL open collector output stage and integrated photodi-

ode. The active area of the detector in connection with

the molded microlens gives an efficient coupling from

the end of a plastic fiber.

The receiver is fully DC coupled and therefore no line

code is needed.

The SFH551/1V includes a Schmitt trigger function to

provide stable output states over the whole dynamic

range. For optical input power levels above 6 μW typically

the electrical output will be logical “low” and vice versa.

With noise free Vcc and GND no undefined output signal

is possible. SFH551/1 must not be used without shielding

the ambient light, because ambient light causes malfunc-

tion when reaching the threshold level, noise or complete

switching the output. Interference free transmission is

possible by using the SFH551/1V with the black plastic

connector housing.

Ordering Information

Type

SFH551/1-1

SFH551/1-1V

Ordering Code

SP000063860

SP000063855

Features

• Bipolar IC with open-collector output

• Digital output, TTL compatible

• Sensitive in visible and near IR range

• Low switching threshold

• Transfer rate ≤ 5 Mbit/s

• 2.2 mm aperture holds standard 1000 micron plastic

fiber

• No fiber stripping required

• Molded microlens for efficient coupling

Plastic Connector Housing

• Mounting screw attached to the connector

• Interference-free transmission from light-tight

housing

• Transmitter and receiver can be flexibly positioned

• No cross talk

• Auto insertable and wave solderable

• Supplied in tubes

Applications

• Household electronics

• Power electronics

• Optical networks

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