Telefunken TSOP1856, TSOP1840, TSOP1836, TSOP1838, TSOP1837 Datasheet
...
TSOP18..
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type fo Type fo
TSOP1830 30 kHz TSOP1833 33 kHz
TSOP1836 36 kHz TSOP1837 36.7 kHz
TSOP1838 38 kHz TSOP1840 40 kHz
TSOP1856 56 kHz
Description
The TSOP18.. – 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.
14 500
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
Input
PIN
AGC
Special Features
D
Small size package
D
Enhanced immunity against all kinds
of disturbance light
D
No occurrence of disturbance pulses at
the output
D
Short settling time after power on (<200ms)
Control
Circuit
Band
Pass
Demodu-
lator
30 k
3
V
S
W
1
OUT
2
GND
9612226
Document Number 82047
www.vishay.com
1 (7)Rev. 13, 13-Sep-00
TSOP18..
Supply Current (Pin 3)
mA
i o o
E
mW/m
2
Vishay Telefunken
Absolute Maximum Ratings
T
= 25_C
amb
Parameter Test Conditions Symbol Value Unit
Supply Voltage (Pin 3) V
Supply Current (Pin 3) 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 3) V
Transmission Distance
Output Voltage Low (Pin 1) I
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.6,
IR diode TSAL6200, I
= 0.5 mA,Ee = 0.7 mW/m2, f = f
OSL
Pulse width tolerance: tpi – 4/f
tpi + 6/fo, test signal see fig.6
x 85 °C) P
amb
= 300 mA
F
o
< tp <
SD
SH
d 35 m
V
OSL
e min
e max
1/2
S
S
O
O
j
stg
amb
tot
sd
–0.3...6.0 V
–0.3...6.0 V
100
–25...+85
–25...+85
260
0.9 1.2 1.5
1.3
4.5 5.5 V
S
0.3 0.5
0.4 0.7
30 W/m
±45 deg
5 mA
5 mA
°
C
°
C
°
C
50 mW
°
C
250 mV
2
Application Circuit
TSAL62..
15905
www.vishay.com
2 (7)
TSOP18..
100
W
*)
3
4.7 mF *)
>10 k
W
optional
m
1
C
2
GND
*) recommended to suppress power supply disturbances
Document Number 82047
+V
S
Rev. 13, 13-Sep-00
Suitable Data Format
The circuit of the TSOP18.. 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).
TSOP18..
Vishay Telefunken
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..
it can still receive the data signal. However the
sensitivity is reduced to that level that no unexpected
pulses will occure.
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 15ms) at least each 90ms (see Figure A).
0 102030405060708090100
Some examples for such disturbance signals which
are suppressed by the TSOP18.. 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
time [ms]
Figure A: Data Signal (Output of IR Receiver) with a Signal Gap Time of 20ms
Signal Gap Time
0 2 4 6 8101214161820
time [ms]
Figure B: Disturbance Signal from Fluorescent Lamp with Signal Gap Time of 7ms
Document Number 82047
www.vishay.com
3 (7)Rev. 13, 13-Sep-00
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