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TSOP41..
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type
TSOP4130
TSOP4136
TSOP4138
TSOP4156
fo
30 kHz
36 kHz
38 kHz
56 kHz
Type
TSOP4133
TSOP4137
TSOP4140
fo
33 kHz
36.7 kHz
40 kHz
Description
The TSOP41.. – 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
reliable function even in disturbed ambient and the
protection against uncontrolled output pulses.
14 500
Features
D Photo detector and preamplifier in one package
D Internal filter for PCM frequency
D Improved shielding against electrical field
disturbance
D TTL and CMOS compatibility
D Output active low
D Low power consumption
D High immunity against ambient light
D Enhanced data rate of 2400 bit/s
D Operation with short bursts possible
(6 cycles/burst)
Block Diagram
Input
PIN
AGC
9612226
Control
Circuit
Band
Pass
30 kW
Demodu-
lator
3
VS
1
OUT
2
GND
Document Number 82135
Rev. 7, 29 Mar-01
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TSOP41..
Vishay Telefunken
Absolute Maximum Ratings
Tamb = 25_C
Parameter
Supply Voltage
Supply Current
Output Voltage
Output Current
Junction Temperature
Storage Temperature Range
Operating Temperature Range
Power Consumption
Soldering Temperature
Test Conditions
(Pin 3)
(Pin 3)
(Pin 1)
(Pin 1)
x(Tamb 85 °C)
xt 10 s, 1 mm from case
Symbol
VS
IS
VO
IO
Tj
Tstg
Tamb
Ptot
Tsd
Value
–0.3...6.0
5
–0.3...6.0
5
100
–25...+85
–25...+85
50
260
Unit
V
mA
V
mA
°C
°C
°C
mW
°C
Basic Characteristics
Tamb = 25_C
Parameter
Supply Current (Pin 2)
Supply Voltage (Pin 2)
Transmission Distance
Output Voltage Low (Pin 1)
Irradiance (30 – 40 kHz)
Irradiance (56 kHz)
Irradiance
Test Conditions
Symbol Min Typ Max Unit
VS = 5 V, Ev = 0
ISD 0.8 1.1 1.5 mA
VS = 5 V, Ev = 40 klx, sunlight
ISH
1.4
mA
VS 4.5
5.5 V
Ev = 0, test signal see fig.8,
IR diode TSAL6200, IF = 250 mA
d
35 m
IOL = 0.5 mA,
Ee = 0.7 mW/m2, f = fo
Pulse width tolerance: tpi – 5/fo <
tpo < tpi + 5/fo, test signal see fig.8
Pulse width tolerance: tpi – 5/fo <
tpo < tpi + 5/fo, test signal see fig.8
VOL
Ee min
Ee min
250 mV
0.2 0.4 mW/m2
0.3 0.5 mW/m2
Ee max 30
W/m2
Application Circuit
TSAL62..
2
TSOP41..
1
100 W *)
4.7 mF *)
>10 kW
optional
**)
mC
+5V
16286
3
GND
*) recommended to suppress power supply disturbances
**) The output voltage should not be hold continuously at a voltage below 3.3V by the external circuit.
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Document Number 82135
Rev. 7, 29-Mar 01

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TSOP41..
Vishay Telefunken
Suitable Data Format
The circuit of the TSOP41.. is designed in that way that
unexpected output pulses due to noise or disturbance
signals are avoided. A bandpassfilter, an integrator
stage and an automatic gain control are used to
suppress such disturbances.
The distinguishing mark between data signal and
disturbance signal are carrier frequency, burst length
and duty cycle.
The data signal should fullfill the following condition:
Carrier frequency should be close to center
frequency of the bandpass (e.g. 38kHz).
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
neccessary.
For each burst which is longer than 1.8ms a
corresponding 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 TSOP41..
it can still receive the data signal. However the
sensitivity is reduced to that level that no unexpected
pulses will occure.
Some examples for such disturbance signals which
are suppressed by the TSOP41.. are:
DC light (e.g. from tungsten bulb or sunlight)
Continuous signal at 38kHz or at any other
frequency
Signals from fluorescent lamps with electronic
ballast (an example of the signal modulation is
shown in the figure below).
0 5 10 15 20
time [ms]
IR Signal from Fluorescent Lamp with low Modulation
Document Number 82135
Rev. 7, 29 Mar-01
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TSOP41..
Vishay Telefunken
Typical Characteristics (Tamb = 25_C unless otherwise specified)
1.0
0.8
0.6
0.4
0.2
0.0
0.7
94 9102
"Df
f
(
=
3
f0
dB
)
5%
= f0
/
7
0.8 0.9 1.0 1.1 1.2
f / f0 – Relative Frequency
1.3
Figure 1. Frequency Dependence of Responsivity
2.0
f ( E ) = f0
1.6
1.2
0.8
0.4
0.0
0.0 0.4 0.8 1.2 1.6 2.0
94 8147
E – Field Strength of Disturbance ( kV / m )
Figure 4. Sensitivity vs. Electric Field Disturbances
0.30
0.25
0.20
Input burst duration
0.15
0.10 l = 950 nm,
optical test signal, fig.7
0.05
12751
0
0.1
1.0 10.0 100.0 1000.0 10000.0
Ee – Irradiance ( mW/m2 )
Figure 2. Pulse Length and Sensitivity in Dark Ambient
10
f = f0
1 kHz
10 kHz
1
100 Hz
0.1
0.01 0.1 1 10 100 1000
94 9106 DVs RMS – AC Voltage on DC Supply Voltage ( mV )
Figure 5. Sensitivity vs. Supply Voltage Disturbances
5.0
^4.5
Correlation with ambient light sources
( Disturbance effect ) : 10W/m2 1.4 klx
^4.0 ( Stand.illum.A, T = 2855 K ) 8.2 klx
3.5 ( Daylight, T = 5900 K )
3.0
2.5
2.0
1.5
Ambient, l = 950 nm
1.0
0.5
0
0.01
96 12111
0.10 1.00 10.00
E – DC Irradiance (W/m2)
100.00
Figure 3. Sensitivity in Bright Ambient
1.0
0.9
Sensitivity in dark ambient
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–30 –15 0 15 30 45 60 75
96 12112
Tamb – Ambient Temperature ( °C )
90
Figure 6. Sensitivity vs. Ambient Temperature
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Document Number 82135
Rev. 7, 29-Mar 01

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Optical Test Signal
Ee ( IR diode TSAL6200, IF=0.4 A, N=6 pulses, f=f0, T=10 ms )
t
tpi *
T
w* tpi 6/fo is recommended for optimal function
VO
VOH
Output Signal
1 ) 3/f0 < td < 9/f0
2 ) tpi – 5/f0 < tpo < tpi + 5/f0
VOL
td1 )
tpo2 )
Figure 7. Output Function
Optical Test Signal
Ee
16298
t
600 ms
T = 60 ms
600 ms
Output Signal, ( see Fig.10 )
VO
VOH
VOL
Ton
Toff
Figure 8. Output Function
t
94 8134
t
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
16137
10 20 30 40 50 60 70 80 90
Tamb – Ambient Temperature ( °C )
Figure 9. Max. Envelope Duty Cycle vs. Burstlength
TSOP41..
Vishay Telefunken
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
12753
Ton
Toff
l = 950 nm,
optical test signal, fig.8
1.0 10.0 100.0 1000.0 10000.0
Ee – Irradiance (mW/m2)
Figure 10. Output Pulse Diagram
1.20
1.18
1.16
1.14
1.12
1.10
1.08
1.06
1.04
1.02
1
–25 –5 15 35 55 75
16138
Tamb – Ambient Temperature ( °C )
Figure 11. Supply Current vs. Ambient Temperature
1.2
1.0
0.8
0.6
0.4
0.2
0
750
94 8408
850 950 1050
l – Wavelength ( nm )
1150
Figure 12. Relative Spectral Sensitivity vs. Wavelength
Document Number 82135
Rev. 7, 29 Mar-01
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