TCS3404_11 Datasheet, PDF (6/41 Pages) ams AG – DIGITAL COLOR SENSORS

TCS3404, TCS3414
DIGITAL COLOR SENSORS
TAOS137A − APRIL 2011
Optical Characteristics, V_DD = 3 V, T_A = 255C, GAIN = 64y, Tint = 12ms (unless otherwise noted) (see
Notes 1 and 2)
PARAMETER
TEST
CONDITIONS
Red Channel
MIN TYP MAX
Green Channel
MIN TYP MAX
Blue Channel
Clear Channel
MIN TYP MAX MIN TYP MAX
UNIT
Irradiance
λ_p = 470 nm,
See Note 3
0%
15% 15%
50% 65%
90% 59.0 65.6 72.5
responsivity
R_e (CS
package)
λ_p = 524 nm,
See Note 4
λ_p = 640 nm,
See Note 5
0%
80%
15% 60%
110% 0%
90% 0%
15% 0%
35% 71.2
76.9
(counts/
82.7 μW/
cm²)
15% 80.6 90.1 99.5
lid ^Irradiance
responsivity
R_e (FN
a package)
λ_p = 470 nm,
See Note 3
λ_p = 524 nm,
See Note 4
λ_p = 640 nm,
See Note 5
0%
0%
80%
15% 10%
15% 60%
110% 0%
50% 65%
90% 0%
15% 0%
90%
35%
15%
56.3 62.5 69.1
72.5 78.4
94.2 105.3
84.3
116.3
(counts/
μW/
cm²)
v _{NOTES: 1. The percentage shown represents the ratio of the respective red, green, or blue channel value to the clear channel value.}
2. Optical measurements are made using small-angle incident radiation from a light-emitting diode (LED) optical source.
ill 3. The 470 nm input irradiance is supplied by an InGaN light-emitting diode with the following characteristics:
peak wavelength λ_p = 470 nm, spectral halfwidth Δλ½ = 35 nm, and luminous efficacy = 75 lm/W.
4. The 524 nm input irradiance is supplied by an InGaN light-emitting diode with the following characteristics:
t _{peak wavelength λp = 524 nm, spectral halfwidth Δλ½ = 47 nm, and luminous efficacy = 520 lm/W.}
5. The 640 nm input irradiance is supplied by a AlInGaP light-emitting diode with the following characteristics:
G _{s peak wavelength λp = 640 nm, spectral halfwidth Δλ½ = 17 nm, and luminous efficacy = 155 lm/W.}
6. Illuminance responsivity R_v is calculated from the irradiance responsivity R_e by using the LED luminous efficacy values stated in
notes 3, 4, and 5 and using 1 lx = 1 lm/m².
s ^{A nt} _{Operating Characteristics, VDD = 3 V, TA = 255C, (unless otherwise noted) (see Notes 2, 3, and 4)}
m ^{te PARAMETER}
TEST CONDITIONS
4×
a ^{n Gain scaling, relative to 1× gain setting}
16×
64×
o _{Dark ADC count value}
Maximum digital count value
c _{fosc Oscillator frequency}
l Internal integration time tolerance
E_e = 0, 64× gain setting, T_int = 400 ms
Prescale = 1, T_int = 400 ms (Note 1)
Temperature coefficient of responsivity (SYNC mode) λ  700 nm, − 40°C  T_A  85°C
MIN
3.8
15.2
60.8
0
4.2
−5
TYP
4
16
64
3
4.4
± 200
MAX
4.2
16.8
67.2
15
65535
4.6
5
UNIT
counts
counts
MHz
%
ppm/°C
a _{NOTES: 1. At shorter integration times and/or higher Prescale settings, the device will reach saturation of the analog section before the digital}
ic ^{count reaches the maximum 16-bit value. The worst-case (lowest) analog saturation value can be obtained using the formula: Analog}
saturation = (fosc(min) ×Tint) ÷Prescale, where Fosc(min) is the minimum oscillator frequency in Hz, and tint is the actual integration
time (internal, manually-timed, or sync-generated) in seconds.
2. Gain is controlled by the gain register (07h) described in the Register section.
n 3. Measurements taken when the Photodiode field value in the Photodiode Register (06h) is 00b and when the Prescaler field value
in the Gain Register (07h) is 000b.
h 4. The full scale ADC count value is slew-rate limited for short integration times and is limited by the 16-bit counter for long integration
Tec^{times. The nominal transition between the two regions is tint = 65535/5000 = 13.1 ms.}
The LUMENOLOGY r Company
r
r
www.taosinc.com
Copyright E 2011, TAOS Inc.
5