- 您现在的位置：买卖IC网 > PDF目录297617 > TSOP1538TB1 (VISHAY SEMICONDUCTORS) LOGIC OUTPUT PHOTO DETECTOR PDF资料下载
参数资料
| 型号： | TSOP1538TB1 |
| 厂商： | VISHAY SEMICONDUCTORS |
| 元件分类： | 光电元器件 |
| 英文描述： | LOGIC OUTPUT PHOTO DETECTOR |
| 封装： | PLASTIC PACKAGE-3 |
| 文件页数： | 5/7页 |
| 文件大小： | 253K |
| 代理商： | TSOP1538TB1 |
TSOP15..TB1
Document Number 82149
Rev. 1.4, 20-Dec-02
Vishay Semiconductors
www.vishay.com
5
Not
for
Ne
w
Design
Suitable Data Format
The circuit of the TSOP15..TB1 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.
When a disturbance signal is applied to the
TSOP15..TB1 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 TSOP15..TB1 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 Fig-
ure 15).
Figure 13. Vertical Directivity
y
x
y
0
0.4
0.2
0.4
–30
drel – Relative TransmissionDistance
0.6
94 8152
0.6
010
–10
–20
20
–40
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 )
16920
IR
Signal
IR Signal from fluorescent
lamp with low modulation
0
5
10
15
20
Time ( ms )
16921
IR
Signal
IR Signal from fluorescent
lamp with high modulation
相关PDF资料 |
PDF描述 |
|---|---|
| TSOP1737KS1 | LOGIC OUTPUT PHOTO DETECTOR |
| TSOP2156MQ1 | LOGIC OUTPUT PHOTO DETECTOR |
| TSOP4840DA1 | LOGIC OUTPUT PHOTO DETECTOR |
| TSPC603PVGU6ME | 32-BIT, 166 MHz, RISC PROCESSOR, CBGA255 |
| TS(X)PC603PMAB/C8ME | 32-BIT, 200 MHz, RISC PROCESSOR, CQFP240 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TSOP1538XG1 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:Photo Modules for PCM Remote Control Systems |
| TSOP1540 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:Photo Modules for PCM Remote Control Systems |
| TSOP1540 | 制造商:Vishay Semiconductors 功能描述:IR REMOTE RCVR 40KHZ 35M - Rail/Tube |
| TSOP1540SD1 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:Photo Modules for PCM Remote Control Systems |
| TSOP1540SE1 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:Photo Modules for PCM Remote Control Systems |
发布紧急采购，3分钟左右您将得到回复。