TSL12S, TSL13S, TSL14S
LIGHT-TO-VOLTAGE CONVERTERS
TAOS051E − SEPTEMBER 2007
PARAMETER MEASUREMENT INFORMATION
V
Peak E
DD
e
Input
Pulse
Generator
2
Min E
e
LED
(see Note A)
−
3
t
dr
t
df
+
t
r
t
f
Peak V
Min V
O
R
L
TSL1xS
90%
10%
90%
10%
Output
1
O
OUTPUT VOLTAGE WAVEFORM (See Note B)
TEST CIRCUIT
NOTES: A. The input irradiance is supplied by a pulsed AlInGaP light-emitting diode with the following characteristics: λ = 640 nm,
p
t < 1 μs, t < 1 μs.
r
f
B. The output waveform is monitored on an oscilloscope with the following characteristics: t < 100 ns, Z ≥ 1 MΩ, C ≤ 20 pF.
r
i
i
Figure 1. Switching Times
TYPICAL CHARACTERISTICS
NORMALIZED OUTPUT VOLTAGE
vs
ANGULAR DISPLACEMENT
PHOTODIODE SPECTRAL RESPONSIVITY
1
1
0.8
0.6
0.8
0.6
0.4
0.4
0.2
0.2
0
0
80° 60°
40° 20°
0°
20° 40° 60°
80°
300 400 500 600 700 800 900 1000 1100
θ − Angular Displacement
λ − Wavelength − nm
Figure 2
Figure 3
Copyright E 2007, TAOS Inc.
The LUMENOLOGY r Company
r
r
4
www.taosinc.com
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
