TSOP1238. Vishay, TSOP1238. Datasheet - Page 3

• Manufacturer Part Number: TSOP1238.
• Description: IR Remote Receiver 38KHz 45m 3-Pin
• Manufacturer: Vishay

Specifications of TSOP1238.

• Transmission Distance: 45 m
• Viewing Orientation: 90 °
• Mounting: Through Hole
• Operating Supply Voltage: 2.5 to 5.5 V
• Operating Temperature: -25 to 85 °C
• Carrier Frequency: 38 KHz
• Viewing Angle: 90 deg
• Output Current: 5 mA
• Operating Voltage: 2.5 V to 5.5 V
• Supply Current: 0.45 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TSOP12..
Vishay Semiconductors
www.vishay.com
3
Fig. 2 - Pulse Length and Sensitivity in Dark Ambient
V
V
V
20752
E
O
OH
OL
20759
e
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
Optical Test Signal
Output Signal, (see fig. 4)
0.1
0.1
600 µs
Output Pulse Width
Optical Test Signal, Fig. 3
Fig. 4 - Output Pulse Diagram
Optical Test Signal, Fig.1
1
λ = 950 nm,
Fig. 3 - Output Function
1
E
E
t
e
λ = 950 nm,
on
e
t = 60 ms
- Irradiance (mW/m
10
- Irradiance (mW/m
Input Burst Length
10
10
2
100
10
600 µs
T
T
3
on
off
2
t
1000
2
)
off
)
10
IR Receiver Modules for Remote
4
10 000
10
94 8134
5
t
t
Control Systems
20753
16925
20757
Fig. 7 - Sensitivity vs. Supply Voltage Disturbances
Fig. 5 - Frequency Dependence of Responsivity
3.5
2.5
1.5
0.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1.2
1.0
0.8
0.6
0.4
0.2
0.0
4
3
2
0
1
0
0.01
Vs
1
0.7
10 W/m
10 W/m
Correlation with Ambient Light Sources:
RMS
Fig. 6 - Sensitivity in Bright Ambient
E
Wavelength of Ambient
Illumination: λ = 950 nm
e
- AC Voltage on DC Supply Voltage (mV)
- Ambient DC Irradiance (W/m
2
2
= 1.4 kLx (Std. illum. A, T = 2855 K)
= 8.2 kLx (Daylight, T = 5900 K)
0.1
f/f
0
10
0.9
- Relative Frequency
Δ f(3 dB) = f
f = f
f = 30 kHz
f = 20 kHz
1
0
± 5 %
f = 10 kHz
f = 100 Hz
f = f
0
o
/10
100
1.1
Document Number: 82013
10
Rev. 2.5, 04-Feb-11
2
)
100
1000
1.3