TSOP1138 Vishay, TSOP1138 Datasheet - Page 4

• Manufacturer Part Number: TSOP1138
• Description: IR RECEIVER, 45M, 950NM, SIP
• Manufacturer: Vishay

Specifications of TSOP1138

• Transmission Range: 45m
• Directivity: 45°
• Supply Voltage Range: 2.5V To 5.5V
• Opto Case Style: Through Hole
• Operating Temperature Range: -25°C To +85°C
• Carrier Frequency: 38kHz
• Supply Current: 450µA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TSOP11..
Vishay Semiconductors
www.vishay.com
4
16914
16918
94 8408
Figure 11. Relative Spectral Sensitivity vs. Wavelength
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Figure 9. Max. Envelope Duty Cycle vs. Burstlength
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.2
1.0
0.8
0.6
0.4
0.2
Figure 10. Sensitivity vs. Ambient Temperature
–30 –15
0
0
750
Burst Length ( number of cycles / burst )
Sensitivity in dark ambient
T
20
amb
f = 38 kHz, E
850
– Ambient Temperature ( C )
0
l – Wavelength ( nm )
40
15
30
60
950
e
= 2 mW/m
45
80
60
1050
2
100
75
120
90
1150
Suitable Data Format
The circuit of the TSOP11.. is designed in that way
that unexpected output pulses due to noise or distur-
bance signals are avoided. A bandpass filter, an inte-
grator 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 6 cycles/burst or longer.
• After each burst which is between 6 cycles and 70
cycles a gap time of at least 10 cycles is necessary.
95 11339p2
95 11340p2
1.0
0.9
1.0
0.9
0.8
0.7
0.8
0.7
0.6
0.6
d
d
rel
rel
Figure 12. Horizontal Directivity ϕ
0.4
0.4
Figure 13. Vertical Directivity ϕ
- Relative Transmission Distance
- Relative Transmission Distance
0.2
0.2
0°
0
0°
0
0.2
0.2
10°
10°
0.4
0.4
Document Number 82006
20°
20°
0.6
0.6
Rev. 12, 23-Jun-03
y
30°
40°
50°
60°
70°
80°
30°
40°
50°
60°
70°
80°
x
VISHAY