TSOP41..ST1
Vishay Telefunken
1 (8)Rev. 1, 15-Feb-01 www.vishay.com
Document Number 82152
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type fo Type fo
TSOP4130ST1 30 kHz TSOP4133ST1 33 kHz
TSOP4136ST1 36 kHz TSOP4137ST1 36.7 kHz
TSOP4138ST1 38 kHz TSOP4140ST1 40 kHz
TSOP4156ST1 56 kHz
Description
The TSOP41..ST1 – 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 de-
coded 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
9612226
PIN
Input
AGC
Control
Circuit
Band
Pass Demodu-
lator
30 k
W
2
3
1
VS
OUT
GND
TSOP41..ST1
Vishay Telefunken
Rev. 1, 15-Feb-01
www.vishay.com Document Number 82152
2 (8)
Absolute Maximum Ratings
Tamb = 25
_
CParameter Test Conditions Symbol Value Unit
Supply Voltage (Pin 2) VS–0.3...6.0 V
Supply Current (Pin 2) IS5 mA
Output Voltage (Pin 1) VO–0.3...6.0 V
Output Current (Pin 1) IO5 mA
Junction Temperature Tj100
°
C
Storage Temperature Range Tstg –25...+85
°
C
Operating Temperature Range Tamb –25...+85
°
C
Power Consumption (Tamb
x
85
°
C) Ptot 50 mW
Soldering Temperature t
x
10 s, 1 mm from case Tsd 260
°
C
Basic Characteristics
Tamb = 25
_
C
Parameter Test Conditions Symbol Min Typ Max Unit
Su
pp
ly Current (Pin 3)
VS = 5 V, Ev = 0 ISD 0.8 1.1 1.5 mA
Supply
Current
(Pin
3)
VS = 5 V, Ev = 40 klx, sunlight ISH 1.4 mA
Supply Voltage (Pin 3) VS4.5 5.5 V
Transmission Distance Ev = 0, test signal see fig.8,
IR diode TSAL6200, IF = 250 mA d 35 m
Output Voltage Low (Pin 1) IOL = 0.5 mA,
Ee = 0.7 mW/m2, f = foVOL 250 mV
Irradiance (30 – 40 kHz) Pulse width tolerance:
t 5/f <t <t + 5/f
Ee min 0.2 0.4 mW/m2
Irradiance (56 kHz)
t
pi –
5/f
o
<
t
po
<
t
pi
+
5/f
o,
test signal see fig.8 Ee min 0.3 0.5 mW/m2
Irradiance Ee max 30 W/m2
Application Circuit
16286
TSAL62..
TSOP41..ST1
3
1
2
4.7
m
F *)
m
C
>10 k
W
optional
100
W
*) +5V
*) recommended to suppress power supply disturbances
**) The output voltage should not be hold continuously at a voltage below 3.3V by the external circuit.
GND
**)
TSOP41..ST1
Vishay Telefunken
3 (8)Rev. 1, 15-Feb-01 www.vishay.com
Document Number 82152
Suitable Data Format
The circuit of the TSOP41..ST1 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..ST1 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..ST1 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
TSOP41..ST1
Vishay Telefunken
Rev. 1, 15-Feb-01
www.vishay.com Document Number 82152
4 (8)
Typical Characteristics (Tamb = 25
_
C unless otherwise specified)
0.7 0.8 0.9 1.0 1.1
E / E – Rel. Responsitivity
e min
f/f0 – Relative Frequency
1.3
94 9102
0.0
0.2
0.4
0.6
0.8
1.0
e
1.2
f = f0
"
5%
D
f ( 3dB ) = f0/7
Figure 1. Frequency Dependence of Responsivity
0
0.05
0.10
0.15
0.20
0.25
0.30
0.1 1.0 10.0 100.0 1000.0 10000.0
Ee – Irradiance ( mW/m2 )12751
po
t – Output Pulse Length (ms)
Input burst duration
l
= 950 nm,
optical test signal, fig.7
Figure 2. Pulse Length and Sensitivity in Dark Ambient
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0.01 0.10 1.00 10.00 100.00
E – DC Irradiance (W/m2)96 12111
e min
E – Threshold Irradiance (mW/m )
2
Correlation with ambient light sources
(Disturbance effect):10W/m2
^
1.4klx
(Stand.illum.A,T=2855K)
^
8.2klx
(Daylight,T=5900K)
Ambient,
l
= 950 nm
Figure 3. Sensitivity in Bright Ambient
0.0 0.4 0.8 1.2 1.6
0.0
0.4
0.8
1.2
2.0
E – Field Strength of Disturbance ( kV/m )
2.0
94 8147
1.6
E – Threshold Irradiance ( mW/m )
e min 2
f(E)=f0
Figure 4. Sensitivity vs. Electric Field Disturbances
0.01 0.1 1 10 100
0.1
1
10
1000
94 9106
D
VsRMS – AC Voltage on DC Supply Voltage (mV)
E – Threshold Irradiance ( mW/m )
e min 2
f = f0
10 kHz
100 Hz
1 kHz
Figure 5. Sensitivity vs. Supply Voltage Disturbances
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
–30 –15 0 15 30 45 60 75 90
Tamb – Ambient Temperature ( °C )96 12112
e min
E – Threshold Irradiance (mW/m )
2
Sensitivity in dark ambient
Figure 6. Sensitivity vs. Ambient Temperature
TSOP41..ST1
Vishay Telefunken
5 (8)Rev. 1, 15-Feb-01 www.vishay.com
Document Number 82152
Ee
T
tpi * t
VO
VOH
VOL
tpo2 )t
16298
Optical Test Signal
( IR diode TSAL6200, IF=0.4 A, N=6 pulses, f=f0, T=10 ms )
Output Signal
td1 )
1 ) 3/f0 < td < 9/f0
2 ) tpi – 5/f0 < tpo < tpi + 5/f0
* tpi
w
6/fo is recommended for optimal function
Figure 7. Output Function
Ee
t
VO
VOH
VOL t
600
m
s 600
m
s
T = 60 ms
Ton Toff
94 8134
Optical Test Signal
Output Signal, ( see Fig.10 )
Figure 8. Output Function
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0 102030405060708090
Tamb – Ambient Temperature ( °C )16137
Envelope Duty Cycle
Figure 9. Envelope Duty Cycle vs. Ambient Temperature
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0.1 1.0 10.0 100.0 1000.0 10000.0
Ee – Irradiance (mW/m2)12753
on off
T ,T – Output Pulse Length (ms)
Ton
l
= 950 nm,
optical test signal, fig.8
Toff
Figure 10. Output Pulse Diagram
1
1.02
1.04
1.06
1.08
1.10
1.12
1.14
1.16
1.18
1.20
–25 –5 15 35 55 75
Tamb – Ambient Temperature ( °C )16138
I – Supply Current ( mA )
s
Figure 11. Supply Current vs. Ambient Temperature
750 850 950 1050
0
0.2
0.4
0.6
0.8
1.2
S ( ) – Relative Spectral Sensitivity
rel
l
– Wavelength ( nm )
1150
94 8408
1.0
l
Figure 12. Relative Spectral Sensitivity vs. Wavelength
TSOP41..ST1
Vishay Telefunken
Rev. 1, 15-Feb-01
www.vishay.com Document Number 82152
6 (8)
95 11339p2
0.4 0.2 0 0.2 0.4 0.6
0.6
0.9
0°30°
10°20°
40°
50°
60°
70°
80°
1.0
0.8
0.7
drel – Relative Transmission Distance
Figure 13. Vertical Directivity ϕy
95 11340p2
0.4 0.2 0 0.2 0.4 0.6
0.6
0.9
0°30°
10°20°
40°
50°
60°
70°
80°
1.0
0.8
0.7
drel – Relative Transmission Distance
Figure 14. Horizontal Directivity ϕx
TSOP41..ST1
Vishay Telefunken
7 (8)Rev. 1, 15-Feb-01 www.vishay.com
Document Number 82152
Dimensions in mm
16793
TSOP41..ST1
Vishay Telefunken
Rev. 1, 15-Feb-01
www.vishay.com Document Number 82152
8 (8)
Ozone Depleting Substances Policy Statement
It is the policy of V ishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating
systems with respect to their impact on the health and safety of our employees and the public, as well as their
impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. V arious national and international initiatives are pressing for an earlier ban
on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of
ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer application
by the customer. Should the buyer use Vishay-Telefunken products for any unintended or unauthorized application, the
buyer shall indemnify Vishay-Telefunken against all claims, costs, damages, and expenses, arising out of, directly or
indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
