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參數(shù)資料
| 型號： | TSOP34438SB1F |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | IR Receiver Modules for Remote Control Systems |
| 中文描述： | 紅外接收器模塊遠程控制系統(tǒng) |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 177K |
| 代理商： | TSOP34438SB1F |
TSOP344..SB1F
Vishay Semiconductors
Document Number 82273
Rev. 1.1, 28-Feb-05
www.vishay.com
5
Suitable Data Format
The circuit of the TSOP344..SB1F 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 35
cycles a gap time of at least 14 cycles is necessary.
For each burst which is longer than 0.9 ms a corre-
sponding gap time is necessary at some time in the
data stream. This gap time should be at least 7 times
longer than the burst.
Up to 400 short bursts per second can be received
continuously.
Some examples for suitable data format are: NEC
Code, Toshiba Micom Format, Sharp Code, RC5
Code, R-2000 Code.
When a disturbance signal is applied to the
TSOP344..SB1F 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 TSOP344..SB1F 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 with high or low modulation
(see Figure 14 or Figure 15).
Figure 13. Directivity
96 12223p2
0.4
0.2
0
0.2
0.4
0.6
0.6
0.9
0
q
30
q
10
q
20
q
40
q
50
q
60
q
70
q
80
q
1.0
0.8
0.7
d
rel
– Relative Transmission Distance
Figure 14. IR Signal from Fluorescent Lamp with low Modulation
Figure 15. IR Signal from Fluorescent Lamp with high Modulation
0
5
10
15
20
Time
(
ms
)
16
9
20
I
R
S
g
n
I
R
Si
g
nal
f
rom
f
luorescent
lamp
w
it
h
lo
w
modulation
0
5
10
15
20
Time
(
ms
)
16
9
21
I
R
S
g
n
I
R
Si
g
nal
f
rom
f
luorescent
lamp
w
it
h h
i
gh
modulation
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TSOP34438SI1F | 制造商:Vishay Semiconductors 功能描述: |
| TSOP34438SS1F | 制造商:Vishay Intertechnologies 功能描述:IR Receiver Modules 38 kHz |
| TSOP34440 | 制造商:Vishay Intertechnologies 功能描述:TSOP3440 Series IR Receiver Modules for Remote Control Systems 制造商:Vishay 功能描述:IR Remote Receiver 40KHz 45m 3-Pin |
| TSOP34456 | 制造商:Vishay Semiconductors 功能描述: |
| TSOP34536 | 制造商:Vishay Intertechnologies 功能描述:IR RECEIVER SMALL AGC5 36KHZ 制造商:Vishay Intertechnologies 功能描述:IR RECEIVER, SMALL AGC5, 36KHZ 制造商:Vishay Intertechnologies 功能描述:IR RECEIVER, SMALL AGC5, 36KHZ; Carrier Frequency:36kHz; Transmission Range:45m; Directivity:45; Supply Voltage Min:2.5V; Supply Voltage Max:5.5V; Supply Current:350A; Opto Case Style:Through Hole; Operating Temperature Min:-25C; ;RoHS Compliant: Yes |
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