TSOP41..ST1
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type
TSOP4130ST1
TSOP4136ST1
TSOP4138ST1
TSOP4156ST1
fo
30 kHz
36 kHz
38 kHz
56 kHz
Type
TSOP4133ST1
TSOP4137ST1
TSOP4140ST1
fo
33 kHz
36.7 kHz
40 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
D
D
D
Low power consumption
High immunity against ambient light
Enhanced data rate of 2400 bit/s
Operation with short bursts possible
(≥6 cycles/burst)
Block Diagram
3
Input
Control
Circuit
30 k
W
1
PIN
AGC
Band
Pass
Demodu-
lator
2
GND
OUT
V
S
9612226
Document Number 82152
Rev. 1, 15-Feb-01
www.vishay.com
1 (8)
TSOP41..ST1
Vishay Telefunken
Absolute Maximum Ratings
T
amb
= 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 2)
(Pin 2)
(Pin 1)
(Pin 1)
Symbol
V
S
I
S
V
O
I
O
T
j
T
stg
T
amb
P
tot
T
sd
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
(T
amb
85
°
C)
t
10 s, 1 mm from case
x
x
Basic Characteristics
T
amb
= 25
_
C
Parameter
Supply Current (Pin 3)
Supply Voltage (Pin 3)
Transmission Distance
Output Voltage Low (Pin 1)
Irradiance (30 – 40 kHz)
Irradiance (56 kHz)
Irradiance
E
v
= 0, test signal see fig.8,
IR diode TSAL6200, I
F
= 250 mA
I
OL
= 0.5 mA,
E
e
= 0.7 mW/m
2
, f = f
o
Pulse width tolerance:
t
pi
– 5/f
o
< t
po
< t
pi
+ 5/f
o
,
test signal see fig.8
Test Conditions
V
S
= 5 V, E
v
= 0
V
S
= 5 V, E
v
= 40 klx, sunlight
Symbol
I
SD
I
SH
V
S
d
V
OL
E
e min
E
e min
E
e max
30
0.2
0.3
Min
0.8
4.5
35
250
0.4
0.5
Typ
1.1
1.4
Max
1.5
5.5
Unit
mA
mA
V
m
mV
mW/m
2
mW/m
2
W/m
2
Application Circuit
100
W
*)
3
TSOP41..ST1
TSAL62..
1
**)
2
16286
+5V
>10 k
W
optional
4.7
m
F *)
m
C
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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2 (8)
Document Number 82152
Rev. 1, 15-Feb-01
TSOP41..ST1
Vishay Telefunken
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
time [ms]
15
20
IR Signal from Fluorescent Lamp with low Modulation
Document Number 82152
Rev. 1, 15-Feb-01
www.vishay.com
3 (8)
TSOP41..ST1
Vishay Telefunken
Typical Characteristics
(T
amb
= 25
_
C unless otherwise specified)
E
e min
– Threshold Irradiance ( mW/m
2
)
1.0
/
e
E – Rel. Responsitivity
0.8
2.0
f ( E ) = f
0
1.6
1.2
0.8
0.4
0.0
0.7
94 9102
0.6
0.4
0.2
0.0
0.8
0.9
1.0
1.1
1.2
1.3
f / f
0
– Relative Frequency
f = f
0
5%
D
f ( 3 dB ) = f
0
/ 7
"
e
E
min
0.0
94 8147
0.4
0.8
1.2
1.6
2.0
E – Field Strength of Disturbance ( kV / m )
Figure 1. Frequency Dependence of Responsivity
0.30
t
po
– Output Pulse Length (ms)
0.25
0.20
Input burst duration
0.15
0.10
0.05
0
0.1
12751
Figure 4. Sensitivity vs. Electric Field Disturbances
10
f = f
0
1 kHz
E
e min
– Threshold Irradiance ( mW/m
2
)
10 kHz
1
l
= 950 nm,
optical test signal, fig.7
100 Hz
1.0
10.0
100.0 1000.0 10000.0
94 9106
0.1
0.01
0.1
1
10
100
1000
E
e
– Irradiance ( mW/m
2
)
D
V
s RMS –
AC Voltage on DC Supply Voltage ( mV )
Figure 2. Pulse Length and Sensitivity in Dark Ambient
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.01
0.10
1.00
10.00
100.00
Ambient,
l
= 950 nm
Correlation with ambient light sources
( Disturbance effect ) : 10W/m
2
1.4 klx
( Stand.illum.A, T = 2855 K ) 8.2 klx
( Daylight, T = 5900 K )
Figure 5. Sensitivity vs. Supply Voltage Disturbances
1.0
0.9
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
90
Sensitivity in dark ambient
E
e min
– Threshold Irradiance (mW/m
2
)
^
^
E
e min
– Threshold Irradiance (mW/m
2
)
96 12111
E – DC Irradiance (W/m
2
)
96 12112
T
amb
– Ambient Temperature (
°C
)
Figure 3. Sensitivity in Bright Ambient
Figure 6. Sensitivity vs. Ambient Temperature
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4 (8)
Document Number 82152
Rev. 1, 15-Feb-01
TSOP41..ST1
Vishay Telefunken
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 – Output Pulse Length (ms)
off
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
t
t
po2 )
12753
T
on
tpi
*
t
* t
pi
V
O
V
OH
V
OL
t
d1 )
w
6/fo is recommended for optimal function
16298
T
T
off
Output Signal
1)
2)
l
= 950 nm,
optical test signal, fig.8
3/f
0
< t
d
< 9/f
0
t
pi
– 5/f
0
< t
po
< t
pi
+ 5/f
0
1.0
10.0
100.0 1000.0 10000.0
E
e
– Irradiance (mW/m
2
)
Figure 7. Output Function
E
e
Optical Test Signal
1.20
1.18
I
s
– Supply Current ( mA )
1.16
1.14
1.12
1.10
1.08
1.06
1.04
1.02
Figure 10. Output Pulse Diagram
600
m
s
T = 60 ms
600
m
s
t
94 8134
V
O
V
OH
V
OL
Output Signal,
( see Fig.10 )
1
–25
T
on
T
off
t
16138
–5
15
35
55
75
T
amb
– Ambient Temperature (
°C
)
Figure 8. Output Function
1.0
0.9
0.8
Envelope Duty Cycle
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
16137
Figure 11. Supply Current vs. Ambient Temperature
S (
l
)
rel
– Relative Spectral Sensitivity
1.2
1.0
0.8
0.6
0.4
0.2
0
750
10
20
30
40
50
60
70
80
90
94 8408
850
950
1050
1150
T
amb
– Ambient Temperature (
°C
)
l
– Wavelength ( nm )
Figure 9. Envelope Duty Cycle vs. Ambient Temperature
Figure 12. Relative Spectral Sensitivity vs. Wavelength
Document Number 82152
Rev. 1, 15-Feb-01
www.vishay.com
5 (8)
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