TSOP18..XG1
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type fo Type fo
TSOP1830XG1 30 kHz TSOP1833XG1 33 kHz
TSOP1836XG1 36 kHz TSOP1837XG1 36.7 kHz
TSOP1838XG1 38 kHz TSOP1840XG1 40 kHz
TSOP1856XG1 56 kHz
Description
The TSOP18..XG1 – 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.
16 082
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 82056
www.vishay.de • FaxBack +1-408-970-5600
1 (7)Rev. 4, 08-Jun-00
TSOP18..XG1
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 5 s T
Basic Characteristics
T
= 25_C
amb
Parameter Test Conditions Symbol Min Typ Max Unit
Supply Current (Pin 3) VS = 5 V, Ev = 0 I
VS = 5 V, Ev = 40 klx, sunlight I
Supply Voltage (Pin 3) V
Transmission Distance Ev = 0, test signal see fig.6,
IR diode TSAL6200, I
Output Voltage Low (Pin 1) I
Irradiance (30 – 40 kHz) Pulse width tolerance:
Irradiance (56 kHz)
Irradiance E
Directivity Angle of half transmission distance ϕ
= 0.5 mA,Ee = 0.7 mW/m2,
OSL
f = f
o
–
pi
<
o
test signal see fig.6
x 85 °C) P
amb
= 300 mA
F
<
+
po
pi
,
o
SD
SH
S
d 35 m
V
OSL
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
0.9 1.2 1.5 mA
1.3 mA
4.5 5.5 V
250 mV
0.3 0.5 mW/m
0.4 0.7 mW/m
30 W/m
±45 deg
°
C
°
C
°
C
°
C
2
2
2
Application Circuit
TSOP18..
TSAL62..
15905
www.vishay.de • FaxBack +1-408-970-5600
2 (7)
100
W
*)
3
4.7 mF *)
>10 k
W
optional
m
1
C
2
GND
*) recommended to suppress power supply disturbances
Document Number 82056
+5V
Rev. 4, 08-Jun-00
Suitable Data Format
The circuit of the TSOP18..XG1 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..XG1
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..XG1 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..XG1 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 (suppressed by TSOP18..)
Document Number 82056
www.vishay.de • FaxBack +1-408-970-5600
3 (7)Rev. 4, 08-Jun-00