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TCS230
PROGRAMMABLE
COLOR LIGHT TOFREQUENCY CONVERTER
TAOS046 – JANUARY 2003
4
t
Copyright
E 2003, TAOS Inc.
The
LUMENOLOGY
r Company
www.taosinc.com
Operating Characteristics at VDD = 5 V, TA = 25°C, S0 = H, S1 = H (unless otherwise noted)
(See Notes 3, 4, 5, 6, and 7).
PARAMETER
TEST
CONDITIONS
CLEAR
PHOTODIODE
S2 = H, S3 = L
BLUE
PHOTODIODE
S2 = L, S3 = H
GREEN
PHOTODIODE
S2 = H, S3 = H
RED
PHOTODIODE
S2 = L, S3 = L
UNIT
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
Ee = 45.6 W/cm2,
λp = 470 nm
16
20
24
11.2
16.4
21.6
kHz
fO
Output
frequency
Ee = 39.2 W/cm2,
λp = 524 nm
16
20
24
8
13.6
19.2
kHz
fO
frequency
Ee = 32.8 W/cm2,
λp = 635 nm
16
20
24
14
19
24
kHz
Ee = 0
2
12
2
12
2
12
2
12
Hz
λp = 470 nm
439
360
88
31
R
Irradiance
responsivity
λp = 524 nm
510
189
347
46
Hz/
( W/
Re responsivity
(Note 8)
λp = 565 nm
548
49
318
110
(
W/
cm2)
(Note 8)
λp = 635 nm
610
30
37
579
cm2)
λp = 470 nm
1370
1670
Saturation
Irradiance
λp = 524 nm
1180
1730
W/
Irradiance
(Note 9)
λp = 565 nm
1090
1890
W/
cm2
(Note 9)
λp = 635 nm
980
1040
λp = 470 nm
585
480
117
41
R
Illuminance
responsivity
λp = 524 nm
98
36
67
9
Hz/
Rv
responsivity
(Note 10)
λp = 565 nm
92
8
53
18
Hz/
lx
(Note 10)
λp = 635 nm
407
20
25
386
fO = 0 to 5 kHz
±0.1%
% F.S.
Nonlinearity
(Note 11)
fO = 0 to 50 kHz
±0.2%
% F.S.
(Note 11)
fO = 0 to 500 kHz
±0.5%
% F.S.
Recovery
from power
down
100
s
Response
time to out-
put enable
(OE)
100
ns
NOTES: 3. Optical measurements are made using small-angle incident radiation from a light-emitting diode (LED) optical source.
4. The 470 nm input irradiance is supplied by an
InGaN light-emitting diode with the following characteristics:
peak wavelength
λp = 470 nm, spectral halfwidth λ = 35 nm, and luminous efficacy = 75 lm/W.
5. The 524 nm input irradiance is supplied by an
InGaN light-emitting diode with the following characteristics:
peak wavelength
λp = 524 nm, spectral halfwidth λ = 47 nm, and luminous efficacy = 520 lm/W.
6. The 565 nm input irradiance is supplied by a GaP light-emitting diode with the following characteristics:
peak wavelength
λp = 565 nm, spectral halfwidth λ = 28 nm, and luminous efficacy = 595 lm/W.
7. The 635 nm input irradiance is supplied by a Al
InGaP light-emitting diode with the following characteristics:
peak wavelength
λp = 635 nm, spectral halfwidth λ = 17 nm, and luminous efficacy = 150 lm/W.
8. Irradiance responsivity Re is characterized over the range from zero to 5 kHz.
9. Saturation irradiance = (full-scale frequency)/(irradiance responsivity).
10. Illuminance responsivity Rv is calculated from the irradiance responsivity by using the LED luminous efficacy values stated in notes
4, 5, and 6 and using 1 lx = 1 lm/m2.
11. Nonlinearity is defined as the deviation of fO from a straight line between zero and full scale, expressed as a percent of full scale.