Tl1838-infrared-receiver-datasheet.pdf 54g23

http://www.openimpulse.com

TL1838 Infrared Receiver Datasheet 1. Features 　　* Compact design;  　　* Built­in dedicated IC;  　　* wide­angle and long distance reception;  　　* anti­stem worries ability;  　　* can more than offset the impact of ambient light;  　　* Low voltage operation;

2. Dimensions and Pin Assignment

http://www.openimpulse.com

3. Application Circuit

4. Schematic Diagram

http://www.openimpulse.com

5. Optical Parameters (T = 25 ℃ Vcc = 5v f0 = 38KHZ)

Parameter Operating Voltage Receiving distance Carrier Frequency Acceptance angle BMP width

Symbol Vcc L

Quiescent Current

Icc

f0 01/2 FBW

Test Conditions   L5IR = 300MA  (test signal)   Distance attenuation 1/2 ­3Db andwidth

Min 2.7 10

Typ   15

Mnx 5.5  

Unit V M

38K   2

  + / ­35 3.3

    5

HZ Deg kHz

­­­­

0.8

1.5

mA

Low output

VOL

When there is no signal input Vin = 0V Vcc = 5V

 

0.2

0.4

V

High­level output The output pulse width 

VOH TPWL

Vcc = 5V Vin = 500μVp­p ※

4.5 500

  600

  700

V μs

TPWH

Vin = 50mVp­p ※

500

600

700

μs

　　※ testing on the optical axis to the transmit pulse width 600/900μs, 5CM within receiving range, the average value of the received pulse 50

6. Test Wave

http://www.openimpulse.com

7. Limit Parameters Project Supply Voltage Operating Temperature Storage Temperature Soldering Temperature

Symbol Vcc Topr Tstg Tsol

Specification 6.0 ­25­85 ­40­125 240

Unit v ℃ ℃ ℃

8. Receiving Angle Diagram

9. Recommended Conditions of Use Project Operating Voltage

Symbol Vcc

Min 2.7

Typ ­­­­­

Mnx 5.5

Unit V

Input Frequency Operating Temperature

FM Topr

  ­20

38

 

kHz