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TSOP18..SI1
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type
TSOP1830SI1
TSOP1836SI1
TSOP1838SI1
TSOP1856SI1
fo
30 kHz
36 kHz
38 kHz
56 kHz
Type
TSOP1833SI1
TSOP1837SI1
TSOP1840SI1
fo
33 kHz
36.7 kHz
40 kHz
Description
The TSOP18..SI1 – 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.
16124
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 6 cycles/burst
Block Diagram
Special Features
D Small size package
D Enhanced immunity against all kinds of
disturbance light
D No occurrence of disturbance pulses at the
output
mD Short settling time after power on (<200 s)
Input
PIN
AGC
9612226
Control
Circuit
Band
Pass
30 kW
Demodu-
lator
3
VS
1
OUT
2
GND
Document Number 82076
Rev. 4, 13-Jun-00
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TSOP18..SI1
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 3)
Supply Voltage (Pin 3)
Transmission Distance
Output Voltage Low (Pin 1)
Irradiance (30 – 40 kHz)
Irradiance (56 kHz)
Irradiance
Directivity
Test Conditions
Symbol Min Typ Max Unit
VS = 5 V, Ev = 0
ISD 0.9 1.2 1.5 mA
VS = 5 V, Ev = 40 klx, sunlight
ISH
1.3
mA
VS 4.5
5.5 V
Ev = 0, test signal see fig.6,
IR diode TSAL6200, IF = 300 mA
d
35 m
IOSL = 0.5 mA,
Ee = 0.7 mW/m2, f = fo
Pulse width tolerance:
tpi – 4/fo < tpo < tpi + 6/fo,
test signal see fig.6
VOSL
Ee min
250 mV
0.3 0.5 mW/m2
Pulse width tolerance:
tpi – 4/fo < tpo < tpi + 6/fo,
test signal see fig.6
Ee min
0.4 0.7 mW/m2
Ee max 30
W/m2
Angle of half transmission distance ϕ1/2 ±45 deg
Application Circuit
TSAL62..
3
TSOP18..
1
m4.7 F *)
W100 *)
W>10 k
optional
mC
+5V
2
GND
15905 *) recommended to suppress power supply disturbances
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Document Number 82076
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TSOP18..SI1
Vishay Telefunken
Suitable Data Format
The circuit of the TSOP18..SI1 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 ( not
suppressed) and disturbance signal (supressed) are
carrier frequency, burst length and Signal Gap Time
(see diagram below).
The data signal should fullfill the following condition:
Carrier frequency should be close to center fre-
quency of the bandpass (e.g. 38kHz).
Burst length should be 6 cycles/burst or longer.
After each burst a gap time of at least 9 cycles is
neccessary.
The data format should not make a continuous
signal transmission. There must be a Signal Gap Time
(longer than 15ms) at least each 90ms (see Figure A).
Some examples for suitable data format are:
NEC Code (repetitive pulse), NEC Code (repetitive
data), Toshiba Micom Format, Sharp Code, RC5
Code, RECS–80 Code, R–2000 Code.
When a disturbance signal is applied to the
TSOP18..SI1 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 TSOP18..SI1 are:
DC light (e.g. from tungsten bulb or sunlight),
Continuous signal at 38kHz or at any other
frequency,
Signals from fluorescent lamps (see Figure B).
Continuous IR signal (e.g. 1ms burst, 2ms pause)
Signal Gap Time
0 10 20 30 40 50 60 70 80 90 100
time [ms]
Figure A: Data Signal (Output of IR Receiver) with a Signal Gap Time of 20ms
Signal Gap Time
0 2 4 6 8 10 12 14 16 18 20
time [ms]
Figure B: Disturbance Signal from Fluorescent Lamp with Signal Gap Time of 7ms (suppressed by TSOP18..)
Document Number 82076
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TSOP18..SI1
Vishay Telefunken
Typical Characteristics (Tamb = 25_C unless otherwise specified)
1.0 100.0
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
f = fo
10.0 10 kHz
1 kHz
1.0
100 Hz
0.1
0.1 1.0 10.0 100.0 1000.0
96 12215 DVs RMS – AC Voltage on DC Supply Voltage (mV)
Figure 4. Sensitivity vs. Supply Voltage Disturbances
4.5
^4.0
Correlation with ambient light sources
( Disturbance effect ) : 1 0W/m2 1.4 klx
^3.5 ( Stand.illum.A, T = 2855 K ) 8.2 klx
( Daylight, T = 5900 K )
3.0
2.5
2.0
1.5 Ambient, l = 950 nm
1.0
0.5
0
0.01
96 12214
0.10 1.00 10.00
E – DC Irradiance (W/m2)
100.00
Figure 2. Sensitivity in Bright Ambient
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 3. Sensitivity vs. Electric Field Disturbances
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
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
14312
VS – Supply Voltage ( V )
Figure 5. Sensitivity vs. Supply Voltage
Ee Optical Test Signal
600 ms
600 ms
t
VO
VOH
TD*
Trep=100 ms
* Trep–TD > 15 ms is recommended for optimal function
Output Signal, ( see Fig.7 )
9612218
VOL
Ton
Toff t
Figure 6. Output Function
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0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.4
0.1
16163
Toff
Ton
optical test signal, fig.6
1.0 10.0 100.0 1000.0 10000.0100000.0
Ee – Irradiance (mW/m2)
Figure 7. Output Pulse Diagram
2.0
1.8
1.6 Vs = 5 V
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–30 –15 0 15 30 45 60 75
14315
Tamb – Ambient Temperature ( °C )
90
Figure 8. Supply Current vs. Ambient Temperature
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 12221
Tamb – Ambient Temperature ( °C )
90
Figure 9. Sensitivity vs. Ambient Temperature
TSOP18..SI1
Vishay Telefunken
1.7
1.6
1.5 Supply current in dark ambient
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
14317
VS – Supply Voltage ( V )
Figure 10. Supply Current vs. Supply Voltage
1.2
1.0
0.8
0.6
0.4
0.2
0
750
94 8408
850 950 1050
l – Wavelength ( nm )
1150
Figure 11. Relative Spectral Sensitivity vs. Wavelength
0° 10° 20°
30°
40°
1.0
0.9 50°
0.8 60°
70°
0.7
80°
0.6 0.4 0.2 0 0.2 0.4 0.6
96 12223p2
drel – Relative Transmission Distance
Figure 12. Directivity
Document Number 82076
Rev. 4, 13-Jun-00
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