VSOP383..

www.vishay.com

Vishay Semiconductors

Rev. 1.4, 30-Jul-2021

1

Document Number: 82748

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Preamplifier Circuit for IR Remote Control

LINKS TO ADDITIONAL RESOURCES

DESCRIPTION

The VSOP383.. is designed for use in an IR receiver

application together with a photo pin diode. It is a

sophisticated receiver concept that is very sensitive to data

signals and compatible with the most common data formats

for IR remote control. On the other hand it is immune to DC

current caused by DC light sources such as tungsten bulbs.

The disturbance signal of fluorescent lamps is suppressed;

there are no unwanted pulses at the output.

FEATURES

• Narrow bandpassfilter for all common carrier

frequencies

• High immunity against DC light

• Intelligent AGC to suppress disturbance from

fluorescent lamps and CRTs

• Low power consumption

• Wide supply voltage range

• High immunity against ripple on the supply voltage

• Output active low

• IC manufactured in CMOS technology

• Small QFN package with 2 mm width

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

MECHANICAL DATA

Pinning:

1, 4, 5 = N.C., 2 = VS, 3 = OUT, 6, 8 = GND, 7 = IN

ORDERING CODE

VSOP.... - 3000 pieces in tape and reel

BLOCK DIAGRAM (simplified)

Vishay recommends using a photodiode with at least

2.3 mm2 area. The connection between the photodiode and

pin 7 should be kept as short as possible and carefully

shielded to prevent noise coupling.

APPLICATION CIRCUIT

22906

Product Page

333

DDD3 D

3D Models

Marking

+ V

S

Output,

to μC

GND

Input, from

photodiode

Bias

Controlled

gain

amplifier

Automatic

gain

control

Band-

pass-

filter

33 k

Ω

Automatic

threshold

control

Inte-

grator

21536-2

21537-4

The RC filter is optional to improve the EOS robustness

and the immunity to supply voltage ripple. We recommend

to keep the distance between the photodiode and the input

of the VSOP383.. as short as possible.

Microcontroller

or other logic

to decode the

IR signal

100

Ω

0.22 μF

V

S = 2.5 V

to 5.5 V

0 V

VSOP383..

V

S

GND

IN

OUT