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| Contact us |
ADD：Treasure Anne71 areas of Shenzhen City stay the fairy all the way 14 number G2 floors( general merchandise back of Chiang-Nan)
TEL：0755-27661193
27865113
13809885145(Mr.Yang)
13723456795(Mr.Chen)
Fax：0755-27865183 |
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| Type:CHQ1838B |
1.Property
* the small-size design ;
* integral IC special
* broad angle and long distance are received ;
* combats that to be worried the capability for nothing powerful ;
* be able to sustain goes beyond environment ray photographs to sound
* low level work ;
2.Application :
* the seeing and hearing material ( acoustics , TV , the video recorder tape engine , the phonograph engine )
* household electrical equipment ( air conditioning , the electric fan , the electric light )
* else do not there is not the string and telecontrol the utensil produce ;
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The features size and lead the feet alignment diagram |
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| 3. Application Circuit Diagram: |
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| 4. Block Diagram: |
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| 5. Optic-electric parameter (T=25℃ Vcc=5v f0=38KHZ) |
Parameter |
Symbol |
Test condition |
Min |
Typ |
Max |
Unit |
Supply Voltage |
Vcc |
|
2.7 |
|
5.5 |
V |
Receiving range |
L |
L5IR=300MA
(test signal) |
10 |
15 |
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M |
Carrier wave frequency |
f0 |
|
38K |
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HZ |
Receving Angle |
01/2 |
Range attenuation 1/2 |
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+/-35 |
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Deg |
BMP Breadth |
FBW |
-3Db and width |
2 |
3.3 |
5 |
kHz |
Quiescent current |
Icc |
Input Signal=0 |
---- |
0.8 |
1.5 |
mA |
Low Level Output Voltage |
VOL |
Vin=0V Vcc=5V |
|
0.2 |
0.4 |
V |
High Level Output Voltage |
VOH |
Vcc=5V |
4.5 |
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|
V |
Output Pulse
Width |
TPWL |
Vin=500μVp-p※ |
500 |
600 |
700 |
μs |
TPWH |
Vin=50mVp-p※ |
500 |
600 |
700 |
μs |
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| ※Tested by optical axis. Receiving width as 600/900μs burst waveform within 5 cm, take average value of 50 receiving pulses. |
| 6. Testing Signal: Testing Signal : |
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| 7. The maximum parameter : |
Item
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Sign |
Standard |
Unit |
| Supply tension |
Vcc |
6.0 |
v |
| Work temperature |
Topr |
-25-85 |
℃ |
| Store temperature |
Tstg |
-40-125 |
℃ |
| Soldering temperature |
Tsol |
240 |
℃ |
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| 8. Receiving angle picture: |
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| 9.Recommended using conditions: |
Parameter |
Sign |
Min |
Typ |
Max |
Unit |
Supply Voltage |
Vcc |
2.7 |
----- |
5.5 |
V |
Input Frequency |
FM |
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38 |
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kHz |
Working temperature |
Topr |
-20 |
25 |
80 |
℃ |
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| 10. Precautions： |
1) Store or use where there is no any force causing transformation or change in quality;
2) Store or use where there is no any corrosive gas or sea (with salt) breeze;
3) Store or use under low humidity;
4) Solder the lead pin within the condition of ratings, After soldering, do not add outside force;
5) Do not wash this device, to prevent static electricity damage to the pre-amp, make sure that the human body, the soldering iron are connected to ground before using.
6) Please pay careful attention to the lens of receivers. It might have a chance to become abnormal when the lens gets dust or dirt, and also please do not touch the lens. |
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