VISHAY
TSOP348..
Vishay Semiconductors
IR Receiver Modules for Remote Control Systems
Description
The TSOP348.. - series are miniaturized receivers for
infrared remote control systems. PIN diode and
preamplifier are assembled on lead frame, the epoxy
package is designed as IR filter.
The demodulated output signal can directly be
decoded by a microprocessor. TSOP348.. is the stan-
dard IR remote control receiver series for 3 V supply
voltage, supporting all major transmission codes.
1
2
3
16672
Features
鈥?Photo detector and preamplifier in one package
鈥?Internal filter for PCM frequency
鈥?Improved shielding against electrical field
disturbance
鈥?TTL and CMOS compatibility
鈥?Output active low
鈥?Supply voltage: 2.7 V to 5.5 V
鈥?Improved immunity against ambient light
Parts Table
Part
TSOP34830
TSOP34833
TSOP34836
TSOP34837
TSOP34838
TSOP34840
TSOP34856
Carrier Frequency
30 kHz
33 kHz
36 kHz
36.7 kHz
38 kHz
40 kHz
56 kHz
Mechanical Data
Pinning:
1 = OUT, 2 = GND, 3 = V
S
Block Diagram
Application Circuit
16833
3
30 k鈩?/div>
Input
PIN
AGC
Band
Pass
Demo-
dulator
V
S
17170
OUT
Circuit
1
Transmitter
TSOPxxxx
with
TSALxxxx
R
1
= 100
鈩?/div>
V
S
C
1
=
4.7 碌F
V
O
+V
S
OUT
GND
碌C
GND
2
Control Circuit
GND
R
1
+ C
1
recommended to suppress power supply
disturbances.
The output voltage should not be hold continuously at
a voltage below V
O =
2.0 V by the external circuit.
Document Number 82202
Rev. 5, 23-Jun-03
www.vishay.com
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