TSOP18..RF3V
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type
TSOP1830RF3V
TSOP1836RF3V
TSOP1838RF3V
TSOP1856RF3V
fo
30 kHz
36 kHz
38 kHz
56 kHz
Type
TSOP1833RF3V
TSOP1837RF3V
TSOP1840RF3V
fo
33 kHz
36.7 kHz
40 kHz
Description
The TSOP18..RF3V – 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.
16 079
Features
D
D
D
D
D
Photo detector and preamplifier in one package
Internal filter for PCM frequency
TTL and CMOS compatibility
Output active low
Improved shielding against electrical field
disturbance
Special Features
D
Small size package
D
Supply voltage 3–6 Volt
D
Enhanced immunity against all kinds
of disturbance light
D
No occurrence of disturbance pulses
D
Short settling time after power on (<200
m
s)
at the output
D
Suitable burst length
≥6
cycles/burst
Block Diagram
3
Input
Control
Circuit
80 k
W
1
PIN
AGC
Band
Pass
Demodu-
lator
2
GND
OUT
V
S
16249
Document Number 82144
Rev. 1, 19-Oct-00
www.vishay.com
1 (7)
TSOP18..RF3V
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 3)
(Pin 3)
(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)
E
v
= 0, test signal see fig.6,
IR diode TSAL6200, I
F
= 300 mA
Output Voltage Low (Pin 1) I
OSL
= 0.5 mA,E
e
= 0.7 mW/m
2
, f = f
o
Pulse width tolerance:
Irradiance (30 – 40 kHz)
t
pi
– 4/f
o
< t
po
< t
pi
+ 5/f
o
,
test signal see fig.6
Pulse width tolerance:
Irradiance (56 kHz)
t
pi
– 4/f
o
< t
po
< t
pi
+ 5/f
o
,
test signal see fig.6
Irradiance
Directivity
Angle of half transmission distance
Transmission Distance
Test Conditions
V
S
= 3 V, E
v
= 0
V
S
= 3 V, E
v
= 40 klx, sunlight
Symbol
I
SD
I
SH
V
S
d
V
OSL
E
e min
0.3
Min
0.5
3.0
35
250
0.5
Typ
0.75
1.0
Max
1.0
6.0
Unit
mA
mA
V
m
mV
mW/m
2
E
e min
E
e max
ϕ
1/2
30
0.4
0.7
mW/m
2
W/m
2
deg
±45
Application Circuit
330
W
*)
>10 k
recomm.
+ 3 V **)
3
TSOP18..RF3V
TSAL62..
4.7 F *)
m
W
1
m
C
2
GND
15803
*)
only necessary to suppress power supply disturbances
**) tolerated supply voltage range : 3 V< V
S
< 6V
www.vishay.com
2 (7)
Document Number 82144
Rev. 1, 19-Oct-00
TSOP18..RF3V
Vishay Telefunken
Suitable Data Format
The circuit of the TSOP18..RF3V 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
frequency 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 25ms) at least each 150ms (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..RF3V 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..RF3V 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
20
40
60
time [ms]
80
100
120
140
Figure A:
Data Signal (Output of IR Receiver) with a Signal Gap Time of 45ms
Signal Gap Time
0
2
4
6
8
10
time [ms]
12
14
16
18
20
Figure B:
Disturbance Signal from Fluorescent Lamp with Signal Gap Time of 7ms (suppressed by TSOP18..SS3V)
Document Number 82144
Rev. 1, 19-Oct-00
www.vishay.com
3 (7)
TSOP18..RF3V
Vishay Telefunken
Typical Characteristics
(T
amb
= 25
_
C unless otherwise specified)
1.0
0.8
E
e min
– Threshold Irradiance (mW/m
2
)
/
e
E – Rel. Responsitivity
100.0
f = f
o
10.0
10 kHz
1 kHz
1.0
0.6
0.4
0.2
0.0
0.7
0.8
0.9
1.0
1.1
1.2
1.3
D
f ( 3 dB ) = f
0
/ 7
f / f
0
– Relative Frequency
f = f
0
"
5%
e
E
min
100 Hz
0.1
0.1
1.0
10.0
100.0
1000.0
94 9102
96 12215
D
V
s RMS –
AC Voltage on DC Supply Voltage (mV)
Figure 1. Frequency Dependence of Responsivity
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 ) : 1 0W/m2 1.4 klx
( Stand.illum.A, T = 2855 K ) 8.2 klx
( Daylight, T = 5900 K )
Figure 4. 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
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Sensitivity in dark ambient
E
e min
– Threshold Irradiance (mW/m
2
)
^
^
96 12214
E – DC Irradiance (W/m
2
)
E
e min
– Threshold Irradiance (mW/m
2
)
96 12216
V
S
– Supply Voltage ( V )
Figure 2. Sensitivity in Bright Ambient
E
e
E
e min
– Threshold Irradiance ( mW/m
2
)
2.0
f ( E ) = f
0
1.6
1.2
0.8
0.4
0.0
0.0
94 8147
Figure 5. Sensitivity vs. Supply Voltage
Optical Test Signal
600
m
s
T
D
*
600
m
s
t
T
rep
=100 ms
* T
rep
–T
D
> 25 ms is recommended for optimal function
V
O
V
OH
0.4
0.8
1.2
1.6
2.0
V
OL
T
on
T
off
t
Output Signal,
( see Fig.7 )
16177
E – Field Strength of Disturbance ( kV / m )
Figure 3. Sensitivity vs. Electric Field Disturbances
Figure 6.
www.vishay.com
4 (7)
Document Number 82144
Rev. 1, 19-Oct-00
TSOP18..RF3V
Vishay Telefunken
0.8
T
on
,T – Output Pulse Length (ms)
off
0.7
0.6
0.5
T
off
0.4
0.3
0.2
0.1
0
0.1
16043
T
on
I
s
– Supply Current ( mA )
1.0
10.0
100.0
1000.0 10000.0
1.7
1.6
Supply current in dark ambient
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
2.5 3.0 3.5 4.0 4.5 5.0
V
S
– Supply Voltage ( V )
5.5
6.0
E
e
– Irradiance (mW/m
2
)
96 12222
Figure 7. Output Pulse Diagram
1.0
0.9
I
s
– Supply Current ( mA )
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–30 –15
16044
Figure 10. Supply Current vs. Supply Voltage
1.2
1.0
0.8
0.6
0.4
0.2
0
750
94 8408
V
s
= 3 V
S (
l
)
rel
– Relative Spectral Sensitivity
0
15
30
45
60
75
90
850
950
1050
1150
T
amb
– Ambient Temperature (
°C
)
l
– Wavelength ( nm )
Figure 8. Supply Current vs. Ambient Temperature
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
Figure 11. Relative Spectral Sensitivity vs. Wavelength
0°
10°
20°
30°
E
e min
– Threshold Irradiance (mW/m
2
)
40°
1.0
0.9
0.8
0.7
50°
60°
70°
80°
0.6
96 12223p2
96 12221
T
amb
– Ambient Temperature (
°C
)
0.6
0.4
0.2
0
0.2
0.4
d
rel
– Relative Transmission Distance
Figure 9. Sensitivity vs. Ambient Temperature
Figure 12. Directivity
Document Number 82144
Rev. 1, 19-Oct-00
www.vishay.com
5 (7)
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