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PDF TSOP1156SK1 Data sheet ( Hoja de datos )
| Número de pieza | TSOP1156SK1 | |
| Descripción | IR Receiver Modules for Remote Control Systems | |
| Fabricantes | Vishay Siliconix | |
| Logotipo |  |
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VISHAY
TSOP11..SK1
Vishay Semiconductors
IR Receiver Modules for Remote Control Systems
Description
The TSOP11..SK1 - 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
operation with short burst transmission codes and
high data rates.
Features
• Photo detector and preamplifier in one package
• Internal filter for PCM frequency
• Improved shielding against electrical field
disturbance
• TTL and CMOS compatibility
• Output active low
• Low power consumption
• High immunity against ambient light
Special Features
• Enhanced data rate up to 4000 bit/s
• Operation with short bursts possible
(≥ 6 cycles/burst)
Parts Table
Part
TSOP1130SK1
TSOP1133SK1
TSOP1136SK1
TSOP1137SK1
TSOP1138SK1
TSOP1140SK1
TSOP1156SK1
13 646
Carrier Frequency
30 kHz
33 kHz
36 kHz
36.7 kHz
38 kHz
40 kHz
56 kHz
Block Diagram
25 kΩ
Input
AGC
Band Demo-
Pass dulator
PIN Control Circuit
2
VS
3
OUT
1
GND
Application Circuit
16842
Transmitter TSOPxxxx
R1 = 100 Ω
with
TSALxxxx
VS C1 =
4.7 µF
OUT
GND
VO
+VS
µC
GND
R1 + C1 recommended to suppress power supply
disturbances.
The output voltage should not be hold continuously at
a voltage below VO = 3.3 V by the external circuit.
Document Number 82159
Rev. 2, 05-May-03
www.vishay.com
1
1 page  
VISHAY
TSOP11..SK1
Vishay Semiconductors
Suitable Data Format
The circuit of the TSOP11..SK1 is designed in that
way that unexpected output pulses due to noise or
disturbance signals are avoided. A bandpass filter, an
integrator stage and an automatic gain control are
used to suppress such disturbances.
The distinguishing mark between data signal and dis-
turbance signal are carrier frequency, burst length
and duty cycle.
The data signal should fulfill the following conditions:
• Carrier frequency should be close to center fre-
quency of the bandpass (e.g. 38 kHz).
• Burst length should be 6 cycles/burst or longer.
• After each burst which is between 6 cycles and 70
cycles a gap time of at least 10 cycles is necessary.
• For each burst which is longer than 1.8 ms a corre-
sponding gap time is necessary at some time in the
data stream. This gap time should have at least same
length as the burst.
• Up to 2200 short bursts per second can be received
continuously.
Some examples for suitable data format are: NEC
Code, Toshiba Micom Format, Sharp Code, RC5
Code, RC6 Code, RCMM Code, R-2000 Code,
RECS-80 Code.
When a disturbance signal is applied to the
TSOP11..SK1 it can still receive the data signal. How-
ever the sensitivity is reduced to that level that no
unexpected pulses will occur.
Some examples for such disturbance signals which
are suppressed by the TSOP11..SK1 are:
• DC light (e.g. from tungsten bulb or sunlight)
• Continuous signal at 38 kHz or at any other fre-
quency
• Signals from fluorescent lamps with electronic bal-
last (an example of the signal modulation is in the fig-
ure below).
IR Signal from fluorescent
lamp with low modulation
16920
0
5 10 15
Time ( ms )
20
Figure 14. IR Signal from Fluorescent Lamp with low Modulation
Document Number 82159
Rev. 2, 05-May-03
www.vishay.com
5
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| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet TSOP1156SK1.PDF ] | |
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