TSOP22..WE1
Vishay Telefunken
1 (7)
Rev. 5, 30-Mar-01
www.vishay.com
Document Number 82092
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type
fo
Type
fo
TSOP2230WE1
30 kHz
TSOP2233WE1
33 kHz
TSOP2236WE1
36 kHz
TSOP2237WE1
36.7 kHz
TSOP2238WE1
38 kHz
TSOP2240WE1
40 kHz
TSOP2256WE1
56 kHz
Description
The TSOP22..WE1 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.
16 080
Features
D
Photo detector and preamplifier in one package
D
Internal filter for PCM frequency
D
TTL and CMOS compatibility
D
Output active low
D
Improved shielding against electrical field
disturbance
D
Suitable burst length
10 cycles/burst
Special Features
D
Small size package
D
High immunity against disturbance light
D
No occurrence of disturbance pulses at the
output
D
Short settling time after power on (<200
m
s)
D
Contiunous data transmission possible
( 800 bursts/s)
Block Diagram
14318
PIN
Input
AGC
Control
Circuit
Band
Pass
Demodu-
lator
30 k
W
3
2
1
V
S
OUT
GND
TSOP22..WE1
Vishay Telefunken
Rev. 5, 30-Mar-01
www.vishay.com
Document Number 82092
2 (7)
Absolute Maximum Ratings
T
amb
= 25
_
C
Parameter
Test Conditions
Symbol
Value
Unit
Supply Voltage
(Pin 2)
V
S
0.3...6.0
V
Supply Current
(Pin 2)
I
S
5
mA
Output Voltage
(Pin 1)
V
O
0.3...6.0
V
Output Current
(Pin 1)
I
O
5
mA
Junction Temperature
T
j
100
C
Storage Temperature Range
T
stg
25...+85
C
Operating Temperature Range
T
amb
25...+85
C
Power Consumption
(T
amb
x
85
C)
P
tot
50
mW
Soldering Temperature
t
x
10 s, 1 mm from case
T
sd
260
C
Basic Characteristics
T
amb
= 25
_
C
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
Supply Current (Pin 2)
V
S
= 5 V, E
v
= 0
I
SD
0.8
1.1
1.5
mA
Supply Current (Pin 2)
V
S
= 5 V, E
v
= 40 klx, sunlight
I
SH
1.4
mA
Supply Voltage (Pin 2)
V
S
4.5
5.5
V
Transmission Distance
E
v
= 0, test signal see fig.7,
IR diode TSAL6200, I
F
= 250 mA
d
35
m
Output Voltage Low (Pin 1)
I
OL
= 0.5 mA,
E
e
= 0.7 mW/m
2
, f = f
o
V
OL
250
mV
Irradiance (30 40 kHz)
Pulse width tolerance:
t
pi
5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig.7
E
e min
0.2
0.4
mW/m
2
Irradiance (56 kHz)
Pulse width tolerance:
t
pi
5/f
o
< t
po
< t
pi
+ 6/f
o
,
test signal see fig.7
E
e min
0.3
0.5
mW/m
2
Irradiance
E
e max
30
W/m
2
Directivity
Angle of half transmission distance
1/2
45
deg
Application Circuit
16133
TSAL62..
TSOP22..
2
1
3
4.7
m
F *)
m
C
>10 k
W
optional
100
W
*)
+ 5 V
*) recommended to suppress power supply disturbances
GND
**)
**) The output voltage should not be hold continuously at a voltage below 3.3V by the external circuit.
TSOP22..WE1
Vishay Telefunken
3 (7)
Rev. 5, 30-Mar-01
www.vishay.com
Document Number 82092
Suitable Data Format
The circuit of the TSOP22..WE1 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 10 cycles/burst or longer.
After each burst which is between 10 cycles and 70
cycles a gap time of at least 14 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 be at least 4
times longer than the burst.
Up to 800 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, R2000 Code.
When a disturbance signal is applied to the
TSOP22..WE1 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 TSOP22..WE1 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 with high or low modulation (see Figure A or
Figure B).
0
5
10
15
20
time [ms]
Figure A: IR Signal from Fluorescent Lamp with low Modulation
0
5
10
15
20
time [s]
Figure B: IR Signal from Fluorescent Lamp with high Modulation
TSOP22..WE1
Vishay Telefunken
Rev. 5, 30-Mar-01
www.vishay.com
Document Number 82092
4 (7)
Typical Characteristics (T
amb
= 25
_
C unless otherwise specified)
0.7
0.8
0.9
1.0
1.1
E / E Rel. Responsitivity
e min
f / f
0
Relative Frequency
1.3
94 8143
0.0
0.2
0.4
0.6
0.8
1.0
e
1.2
f = f
0
"5%
Df ( 3dB ) = f
0
/ 10
Figure 1. Frequency Dependence of Responsivity
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.1
1.0
10.0
100.0
1000.0 10000.0
E
e
Irradiance ( mW/m
2
)
96 12110
po
t Output Pulse Length (ms)
Input burst duration
l = 950 nm,
optical test signal, fig.7
Figure 2. 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/m
2
)
96 12111
e min
E
Threshold
Irradiance
(mW/m
)
2
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 )
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 ) = f
0
Figure 4. Sensitivity vs. Electric Field Disturbances
0.01
0.1
1
10
100
0.1
1
10
1000
94 9106
DV
s RMS
AC Voltage on DC Supply Voltage ( mV )
E
Threshold Irradiance ( mW/m )
e min
2
f = f
0
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
T
amb
Ambient Temperature (
C )
96 12112
e min
E
Threshold
Irradiance
(mW/m
)
2
Sensitivity in dark ambient
Figure 6. Sensitivity vs. Ambient Temperature
TSOP22..WE1
Vishay Telefunken
5 (7)
Rev. 5, 30-Mar-01
www.vishay.com
Document Number 82092
E
e
T
t
pi
*
t
* t
pi
w
10/fo is recommended for optimal function
V
O
V
OH
V
OL
t
16110
Optical Test Signal
(IR diode TSAL6200, I
F
= 0.4 A, 30 pulses, f = f
0
, T = 10 ms)
Output Signal
t
d
1 )
t
po
2
)
1 )
7/f
0
<
t
d
<
15/f
0
2 )
t
po
=
t
pi
"
6/f
0
Figure 7.
E
e
t
V
O
V
OH
V
OL
t
600
ms
600
ms
T = 60 ms
T
on
T
off
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
10
20
30
40
50
60
70
80
90
Burstlength [number of cycles/burst]
16156
Envelope Duty Cycle
f = 38 kHz
Figure 9. Max. Envelope Duty Cycle vs. Burstlength
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.1
1.0
10.0
100.0
1000.0 10000.0
E
e
Irradiance (mW/m
2
)
96 12114
on of
f
T
,T
Output Pulse Length (ms)
T
on
l = 950 nm,
optical test signal, fig.8
T
off
Figure 10. Output Pulse Diagram
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 11. Relative Spectral Sensitivity vs. Wavelength
96 12223p2
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
d
rel
Relative Transmission Distance
Figure 12. Directivity
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