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參數(shù)資料
| 型號(hào)： | HS0038A2 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Photo Modules for PCM Remote Control Systems |
| 中文描述： | 圖片模塊PCM的遠(yuǎn)程控制系統(tǒng) |
| 文件頁(yè)數(shù)： | 3/7頁(yè) |
| 文件大?。?/td> | 105K |
| 代理商： | HS0038A2 |
HS0038A2.
Vishay Telefunken
3 (7)
Rev. 3, 10-Mar-00
www.vishay.de
FaxBack +1-408-970-5600
Document Number 82110
Suitable Data Format
The circuit of the HS0038A2. 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 and
disturbance signal are carrier frequency, burst length
and duty cycle.
The data signal should fullfill the following condition:
Carrier frequency should be close to 38kHz.
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
neccessary.
For each burst which is longer than 1.8ms a
corresponding 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
When a disturbance signal is applied to the
HS0038A2. it can still receive the data signal. However
the sensitivity is reduced to that level that no unex-
pected pulses will occure.
Some examples for such disturbance signals which
are suppressed by the HS0038A2. are:
DC light (e.g. from tungsten bulb or sunlight)
Continuous signal at 38kHz or at any other
frequency
Signals from fluorescent lamps with electronic
ballast with low modulation (see Figure A or B).
0
5
10
15
20
time [ms]
Figure A: IR Signal from Fluorescent Lamp with low Modulation
0
5
10
15
20
time [s]
Figure B: IR Signal from Fluorescent Lamp with high Modulation
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| HS0038B | Photo Modules for PCM Remote Control Systems |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HS0038B | 制造商:VISHAY 制造商全稱(chēng):Vishay Siliconix 功能描述:Photo Modules for PCM Remote Control Systems |
| HS0-0546RH-Q | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Radiation Hardened Single 16/Differential 8 Channel CMOS Analog Multiplexers with Active Overvoltage Protection |
| HS0-0547RH-Q | 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Radiation Hardened Single 16/Differential 8 Channel CMOS Analog Multiplexers with Active Overvoltage Protection |
| HS00-98029 | 制造商:BITECH 制造商全稱(chēng):Bi technologies 功能描述:10Base Networking Products |
| HS00-98241 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:e10/100Base Networking Products |
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