TSOP341..SB1
Vishay Semiconductors
IR Receiver Modules for Remote Control Systems
Description
The TSOP341.. - 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. The main benefit is the
operation with short burst transmission codes and
high data rates at a supply voltage of 3 V.
1
2
3
16656
Features
• Photo detector and preamplifier in one
package
• Internal filter for PCM frequency
• Improved shielding against electrical
field
disturbance
• TTL and CMOS compatibility
• Output active low
• Supply voltage range: 2.7 V to 5.5 V
• High immunity against ambient light
Mechanical Data
Pinning:
1 = OUT, 2 = GND, 3 = V
S
e3
Parts Table
Part
TSOP34130SB1
TSOP34133SB1
TSOP34136SB1
TSOP34137SB1
TSOP34138SB1
Carrier Frequency
30 kHz
33 kHz
36 kHz
36.7 kHz
38 kHz
40 kHz
56 kHz
Special Features
• Enhanced data rate up to 4000 bit/s
• Operation with short short bursts possible
(≥ 6 cycles/burst)
TSOP34140SB1
TSOP34156SB1
Block Diagram
Application Circuit
16833
3
30 kΩ
Input
PIN
AGC
Band
Pass
Demo-
dulator
V
S
17170
1
OUT
Circuit
Transmitter
TSOPxxxx
with
TSALxxxx
R
1
=
100
Ω
V
S
C
1
=
4.7 µF
V
O
+V
S
OUT
GND
µC
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 82248
Rev. 1.1, 31-Jan-05
www.vishay.com
1
TSOP341..SB1
Vishay Semiconductors
Absolute Maximum Ratings
Absolute Maximum Ratings
T
amb
= 25 °C, unless otherwise specified
Parameter
Supply Voltage
Supply Current
Output Voltage
Output Current
Junction Temperature
Storage Temperature Range
Operating Temperature Range
Power Consumption
Soldering Temperature
(T
amb
≤
85 °C)
t
≤
10 s, 1 mm from case
(Pin 3)
(Pin 3)
(Pin 1)
(Pin 1)
Test condition
Symbol
V
S
I
S
V
O
I
O
T
j
T
stg
T
amb
P
tot
T
sd
Value
- 0.3 to + 6.0
3
- 0.3 to
(V
S
+ 0.3)
10
100
- 25 to + 85
- 25 to + 85
30
260
Unit
V
mA
V
mA
°C
°C
°C
mW
°C
Electrical and Optical Characteristics
T
amb
= 25 °C, unless otherwise specified
Parameter
Supply Current (Pin 3)
Supply Voltage
Transmission Distance
E
v
= 0, test signal see fig.1,
IR diode TSAL6200,
I
F
= 250 mA
I
OSL
= 0.5 mA, E
e
= 0.7 mW/m
2
,
test signal see fig. 1
V
S
= 3 V
Pulse width tolerance:
t
pi
- 5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig.3
V
S
= 3 V
Pulse width tolerance:
t
pi
- 5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig.3
V
S
= 5 V
Pulse width tolerance:
t
pi
- 5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig.3
V
S
= 5 V
Pulse width tolerance:
t
pi
- 5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig.3
t
pi
- 5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig. 3
Angle of half transmission
distance
E
v
= 0
E
v
= 40 klx, sunlight
Test condition
Symbol
I
SD
I
SH
V
S
d
2.7
35
Min
0.7
Typ.
1.2
1.3
5.5
Max
1.5
Unit
mA
mA
V
m
Output Voltage Low (Pin 1)
Minimum Irradiance (30 - 40
kHz)
V
OSL
E
e min
0.2
250
0.4
mV
mW/m
2
Minimum Irradiance (56 kHz)
E
e min
0.3
0.5
mW/m
2
Minimum Irradiance (30 - 40
kHz)
E
e min
0.35
0.5
mW/m
2
Minimum Irradiance (56 kHz)
E
e min
0.45
0.6
mW/m
2
Maximum Irradiance
Directivity
E
e max
ϕ
1/2
30
± 45
W/m
2
deg
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2
Document Number 82248
Rev. 1.1, 31-Jan-05
TSOP341..SB1
Vishay Semiconductors
Typical Characteristics (Tamb = 25
°C
unless otherwise specified)
E
e
Optical Test Signal
(IR
diode TSAL6200, I
F
=0.4
A, N=6 pulses,
f=f
0
,
T=10 ms)
T
on
,T
off
–
Output Pulse
Width (
ms
)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.1
1.0
l
= 950
nm,
optical test signal,
fig.3
Toff
Ton
t
pi
*)
T
*)
t
pi
w
6/fo is recommended
for
optimal
function
Output Signal
V
O
V
OH
V
OL
t
d1
)
1
)
2
)
t
14337
3/f
0
<
t
d
< 9/f
0
t
pi
– 4/f
0
<
t
po
<
t
pi
+
6/f
0
t
t
po2
)
16910
10.0 100.0 1000.010000.0
E
e
–
Irradiance
(
mW/m
2
)
Figure 1. Output Function
Figure 4. Output Pulse Diagram
0.35
E
e min
/ E
e
– Rel. Responsivity
t
po
–
Output Pulse
Width (
ms
)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.7
16926
0.30
Output Pulse
0.25
0.20
0.15
0.10
0.05
0.00
0.1
l
= 950
nm,
optical test signal,
fig.1
Input Burst Duration
f = f
0
"5%
Df
(
3dB
) = f
0
/7
0.9
1.1
1.3
1.0
16907
10.0 100.0 1000.010000.0
E
e
–
Irradiance
(
mW/m
2
)
f/f
0
– Relative Frequency
Figure 2. Pulse Length and Sensitivity in Dark Ambient
Figure 5. Frequency Dependence of Responsivity
E
e
Optical Test Signal
E
e min
–
Threshold Irradiance
(
mW/m
2
)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.01
Ambient,
l
= 950
nm
Correlation
with
ambient light sources:
10W/m
2
^1.4klx
(Std.illum.A,T=2855K)
10W/m
2
^8.2klx
(Daylight,T=5900K)
600
ms
T
=
60 ms
Output Signal,
(
see
Fig.4 )
600
ms
t
94
8134
V
O
V
OH
V
OL
T
on
T
off
t
16911
0.10
1.00
10.00
(W/m
2
)
100.00
E –
Ambient DC Irradiance
Figure 3. Output Function
Figure 6. Sensitivity in Bright Ambient
Document Number 82248
Rev. 1.1, 31-Jan-05
www.vishay.com
3
TSOP341..SB1
Vishay Semiconductors
E
e min
–
Threshold Irradiance
(
mW/m
2
)
E
e min
–
Threshold Irradiance
(
mW/m
2
)
2.0
f = f
o
f =
10 kHz
1.0
0.6
0.5
0.4
0.3
0.2
0.1
0.0
–30 –15
Sensitivity in dark ambient
1.5
f =
1 kHz
0.5
f =
100
Hz
0.0
0.1
1.0
10.0
100.0
1000.0
0
15
30
45
60
75
90
16912
DV
sRMS
–
AC Voltage on DC Supply Voltage
(mV)
16918
T
amb
–
Ambient Temperature
(
C
)
Figure 7. Sensitivity vs. Supply Voltage Disturbances
Figure 10. Sensitivity vs. Ambient Temperature
E
e min
–
Threshold Irradiance
(
mW/m
2
)
2.0
f(E) = f
0
1.6
1.2
0.8
0.4
0.0
0.0
0.4
0.8
1.2
1.6
2.0
E – Field
Strength of Disturbance
(
kV/m
)
S
(
λ
)
rel
-
Relative
Spectral Sensitivity
1.2
1.0
0.8
0.6
0.4
0.2
0.0
750
850
950
1050
1150
94
8147
16919
λ
-
Wavelength (
nm
)
Figure 8. Sensitivity vs. Electric Field Disturbances
Figure 11. Relative Spectral Sensitivity vs. Wavelength
1.0
0.9
Max. Envelope
Duty Cycle
0
10
20
30
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
20
40
60
80
100
120
96 12223p2
40
1.0
0.9
0.8
f =
38 kHz,
E
e
=
2
mW/m
2
0.7
50
60
70
80
0.6
0.6
0.4
0.2
0
0.2
0.4
d
rel
– Relative Transmission Distance
16914
Burst
Length (
number of cycles
/ burst )
Figure 9. Max. Envelope Duty Cycle vs. Burstlength
Figure 12. Directivity
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Document Number 82248
Rev. 1.1, 31-Jan-05
TSOP341..SB1
Vishay Semiconductors
• Continuous signal at 38 kHz or at any other fre-
quency
• Signals from fluorescent lamps with electronic bal-
last (an example of the signal modulation is in the fig-
ure below).
1.0
E
e min
–
Sensitivity
(
mW/m
2
)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.0
2.0 2.5 3.0 3.5
4.0 4.5
5.0 5.5 6.0
0.1
17185
V
S
–
Supply Voltage
(
V
)
Figure 13. Sensitivity vs. Supply Voltage
IR Signal
IR Signal
from fluorescent
lamp
with
low modulation
Suitable Data Format
The circuit of the TSOP341.. is designed in that way
that unexpected output pulses due to noise or distur-
bance signals are avoided. A bandpass filter, an inte-
grator stage and an automatic gain control are used
to suppress such disturbances.
The distinguishing mark between data signal and dis-
turbance signal are carrier frequency, burst length
and duty cycle.
The data signal should fulfill the following conditions:
• Carrier frequency should be close to center fre-
quency of the bandpass (e.g. 38 kHz).
• Burst length should be 6 cycles/burst or longer.
• After each burst which is between 6 cycles and 70
cycles a gap time of at least 10 cycles is necessary.
• For each burst which is longer than 1.8 ms a corre-
sponding gap time is necessary at some time in the
data stream. This gap time should have at least same
length as the burst.
• Up to 2200 short bursts per second can be received
continuously.
Some examples for suitable data format are: NEC
Code, Toshiba Micom Format, Sharp Code, RC5
Code, RC6 Code, RCMM Code, R-2000 Code,
RECS-80 Code.
When a disturbance signal is applied to the
TSOP341.. it can still receive the data signal. How-
ever the sensitivity is reduced to that level that no
unexpected pulses will occur.
Some examples for such disturbance signals which
are suppressed by the TSOP341.. are:
• DC light (e.g. from tungsten bulb or sunlight)
16920
0
5
10
Time
(
ms
)
15
20
Figure 14. IR Signal from Fluorescent Lamp with low Modulation
Document Number 82248
Rev. 1.1, 31-Jan-05
www.vishay.com
5
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