|
|
PDF TSOP34837VI1 Data sheet ( Hoja de datos )
| Número de pieza | TSOP34837VI1 | |
| Descripción | IR Receiver Modules for Remote Control Systems | |
| Fabricantes | Vishay Siliconix | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TSOP34837VI1 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
|
No Preview Available !
VISHAY
TSOP348..VI1
Vishay Semiconductors
IR Receiver Modules for Remote Control Systems
Description
The TSOP348..VI1 - 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. TSOP348..VI1 is the
standard IR remote control receiver series for 3 V
supply voltage, supporting all major transmission
codes.
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
• Supply voltage range: 2.7 V to 5.5 V
• Improved immunity against ambient light
Mechanical Data
Pinning:
1 = OUT, 2 = GND, 3 = VS
1
2
3
Parts Table
Part
TSOP34830VI1
TSOP34833VI1
TSOP34836VI1
TSOP34837VI1
TSOP34838VI1
TSOP34840VI1
TSOP34856VI1
16872
Carrier Frequency
30 kHz
33 kHz
36 kHz
36.7 kHz
38 kHz
40 kHz
56 kHz
Block Diagram
16833
30 kΩ
Input
AGC
Band Demo-
Pass dulator
PIN Control Circuit
3
VS
1
OUT
2
GND
Application Circuit
17170
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 = 2.0 V by the external circuit.
Document Number 82251
Rev. 1.1, 22-Oct-03
www.vishay.com
1
1 page  
VISHAY
TSOP348..VI1
Vishay Semiconductors
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
17185
VS – Supply Voltage ( V )
Figure 13. Sensitivity vs. Supply Voltage
• Continuous signal at 38 kHz or at any other fre-
quency
• Signals from fluorescent lamps with electronic bal-
last with high or low modulation
(see Figure 14 or Figure 15).
IR Signal from fluorescent
lamp with low modulation
Suitable Data Format
The circuit of the TSOP348..VI1 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 10 cycles/burst or longer.
• After each burst which is between 10 cycles and 70
cycles a gap time of at least 14 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 be at least 4 times
longer than the burst.
• Up to 800 short bursts per second can be received
continuously.
Some examples for suitable data format are: NEC
Code (repetitive pulse), NEC Code (repetitive data),
Toshiba Micom Format, Sharp Code, RC5 Code,
RC6 Code, R-2000 Code, Sony Code.
When a disturbance signal is applied to the
TSOP348..VI1 it can still receive the data signal.
However the sensitivity is reduced to that level that no
unexpected pulses will occur.
Some examples for such disturbance signals which
are suppressed by the TSOP348..VI1 are:
• DC light (e.g. from tungsten bulb or sunlight)
16920
0
5 10 15
Time ( ms )
20
Figure 14. IR Signal from Fluorescent Lamp with low Modulation
IR Signal from fluorescent
lamp with high modulation
16921
0
5 10 15
Time ( ms )
20
Figure 15. IR Signal from Fluorescent Lamp with high Modulation
Document Number 82251
Rev. 1.1, 22-Oct-03
www.vishay.com
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet TSOP34837VI1.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TSOP34837VI1 | IR Receiver Modules for Remote Control Systems | Vishay Siliconix |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |