TSOP37S40
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Vishay Semiconductors
Rev. 1.2, 24-Sep-2018
3
Document Number: 82671
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Fig. 3 - Output Function
Fig. 4 - Output Pulse Diagram
Fig. 5 - Frequency Dependance of Responsivity
Fig. 6 - Sensitivity in Bright Ambient
Fig. 7 - Sensitivity vs. Supply Voltage Disturbances
Fig. 8 - Max. Envelope Duty Cycle vs. Burst Length
E
e
t
V
O
V
OH
V
OL
t
600 µs
600 µs
t = 60 ms
t
on
t
off
94 8134
Optical Test Signal
Output Signal
, (see Fig. 4)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.1
1
10
100
1000
10 000
E
e
- Irradiance (mW/m
2
)
t
on
, t
off
- Output Pulse Width (ms)
20759
λ
= 950 nm,
optical test signal, Fig. 3
t
on
t
off
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0.7
0.9
1.1
1.3
f/f
0
- Relative Frequency
16925
f = f
0
± 5 %
Δ
f(3 dB) = f
0
/10
E
e min.
/E
e
- Relative Responsivity
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.01
0.1
1
10
100
E
e
- Ambient DC Irradiance (W/m
2
)
E
e min.
- Threshold Irradiance (mW/m
2
)
Correlation with ambient light sources:
10 W/m
2
= 1.4 klx (std. illum. A, T = 2855 K)
10 W/m
2
= 8.2 klx (daylight, T = 5900 K)
Wavelength of ambient
illumination:
λ
= 950 nm
20757
0
0.5
1.0
1.5
2.0
2.5
3.0
1 10
100
1000
E
e min
.
- T
h
re
s
hol
d
Irrad
iance (mW/m
2
)
Δ
V
S
RM
S
- AC Voltage on DC
S
upply Voltage (mV)
f = f
0
f = 30 kHz
f = 10 kHz
f = 100 Hz
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
25
50
75
100
125
150
Burst Length (number of cycles/burst)
Max. Envelope Duty Cycle
TSOP37S40
f = 38 kHz,
E
e
= 2 mW/m²
