Telefunken TSOP2256WE1, TSOP2240WE1, TSOP2236WE1, TSOP2230WE1, TSOP2233WE1 Datasheet
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TSOP22..WE1
Vishay Telefunken
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.
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
Block Diagram
Input
PIN
AGC
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 (<200ms)
D
Contiunous data transmission possible
( 800 bursts/s)
Control
Circuit
Band
Pass
Demodu-
lator
30 k
16 080
2
V
S
W
1
OUT
3
GND
14318
Document Number 82092
www.vishay.com
1 (7)Rev. 5, 30-Mar-01
TSOP22..WE1
Supply Current (Pin 2)
Vishay Telefunken
Absolute Maximum Ratings
T
= 25_C
amb
Parameter Test Conditions Symbol Value Unit
Supply Voltage (Pin 2) V
Supply Current (Pin 2) I
Output Voltage (Pin 1) V
Output Current (Pin 1) I
Junction Temperature T
Storage Temperature Range T
Operating Temperature Range T
Power Consumption (T
Soldering Temperature t x 10 s, 1 mm from case T
Basic Characteristics
T
= 25_C
amb
Parameter Test Conditions Symbol Min Typ Max Unit
pp
Supply Voltage (Pin 2) V
Transmission Distance
Output Voltage Low (Pin 1)
Irradiance (30 – 40 kHz)
Irradiance (56 kHz)
Irradiance E
Directivity Angle of half transmission distance ϕ
VS = 5 V, Ev = 0 I
VS = 5 V, Ev = 40 klx, sunlight I
Ev = 0, test signal see fig.7,
IR diode TSAL6200, I
IOL = 0.5 mA,
Ee = 0.7 mW/m2, f = f
Pulse width tolerance:
tpi – 5/fo < tpo < tpi + 6/fo,
test signal see fig.7
Pulse width tolerance:
tpi – 5/fo < tpo < tpi + 6/fo,
test signal see fig.7
x 85 °C) P
amb
= 250 mA
F
o
SD
SH
S
d 35 m
V
OL
E
e min
E
e min
e max
1/2
S
S
O
O
j
stg
amb
tot
sd
–0.3...6.0 V
5 mA
–0.3...6.0 V
5 mA
100
–25...+85
–25...+85
50 mW
260
0.8 1.1 1.5 mA
1.4 mA
4.5 5.5 V
250 mV
0.2 0.4 mW/m
0.3 0.5 mW/m
30 W/m
±45 deg
°
C
°
C
°
C
°
C
2
2
2
Application Circuit
TSAL62..
*) recommended to suppress power supply disturbances
**) The output voltage should not be hold continuously at a voltage below 3.3V by the external circuit.
www.vishay.com
2 (7)
16133
TSOP22..
2
1
3
4.7 mF *)
100 W *)
>10 k
optional
**)
+5V
W
m
C
GND
Document Number 82092
Rev. 5, 30-Mar-01
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 .
TSOP22..WE1
Vishay Telefunken
Some examples for suitable data format are:
NEC Code, T oshiba Micom Format, Sharp Code, RC5
Code, RC6 Code, R–2000 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
Document Number 82092
www.vishay.com
3 (7)Rev. 5, 30-Mar-01
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