Document Number: 81732

www.vishay.com

Rev. 1.2, 20-Aug-08

121

IR Receiver Modules for Remote Control Systems

New TSOP348.., TSOP344..

Vishay Semiconductors

MECHANICAL DATA

Pinning:

FEATURES

• Very low supply current

• Photo detector and preamplifier in one package

• Internal filter for PCM frequency

• Improved shielding against EMI

• Supply voltage: 2.5 V to 5.5 V

• Improved immunity against ambient light

• Insensitive to supply voltage ripple and noise

• Component in accordance to RoHS 2002/95/EC and

WEEE 2002/96/EC

DESCRIPTION

The

TSOP348..,

TSOP344..

series

are

miniaturized

receivers for infrared remote control systems. A PIN diode

and a preamplifier are assembled on a lead frame, the epoxy

package acts as an IR filter.

The demodulated output signal can be directly decoded by a

microprocessor. The TSOP348.. is compatible with all

common IR remote control data formats. The TSOP344.. is

optimized to suppress almost all spurious pulses from

energy saving fluorescent lamps but will also suppress some

data signals.

This component has not been qualified according to

automotive specifications.

BLOCK DIAGRAM

APPLICATION CIRCUIT

16672

1

2

3

e3

PARTS TABLE

CARRIER FREQUENCY

STANDARD APPLICATIONS (AGC2/AGC8)

VERY NOISY ENVIRONMENTS (AGC4)

30 kHz

TSOP34830

TSOP34430

33 kHz

TSOP34833

TSOP34433

36 kHz

TSOP34836

TSOP34436

38 kHz

TSOP34838

TSOP34438

40 kHz

TSOP34840

TSOP34440

56 kHz

TSOP34856

TSOP34456

30 k

Ω

2

3

1

V

S

OUT

Demo-

GND

pass

AGC

Input

PIN

Band

dulator

Control circuit

16833

IR receiver

GND

µC

GND

Transmitter

with

TSALxxxx

17170_5

OUT

R

Components should be in the range of 33

Ω < R

C