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TCS3404 Datasheet(PDF) 5 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

Part No. TCS3404
Description  DIGITAL COLOR SENSORS
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Maker  TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS]
Homepage  http://www.taosinc.com
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TCS3404 Datasheet(HTML) 5 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

 
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TCS3404, TCS3414
DIGITAL COLOR SENSORS
TAOS137A − APRIL 2011
5
The LUMENOLOGY
r Company
r
r
Copyright
E 2011, TAOS Inc.
www.taosinc.com
Optical Characteristics, VDD = 3 V, TA = 255C, GAIN = 64y, Tint = 12ms (unless otherwise noted) (see
Notes 1 and 2)
PARAMETER
TEST
Red Channel
Green Channel
Blue Channel
Clear Channel
UNIT
PARAMETER
TEST
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
Irradiance
λp = 470 nm,
See Note 3
0%
15%
15%
50%
65%
90%
59.0
65.6
72.5
Re
responsivity
(CS
package)
λp = 524 nm,
See Note 4
0%
15%
60%
90%
0%
35%
71.2
76.9
82.7
(counts/
μW/
cm2)
package)
λp = 640 nm,
See Note 5
80%
110%
0%
15%
0%
15%
80.6
90.1
99.5
cm2)
Irradiance
λp = 470 nm,
See Note 3
0%
15%
10%
50%
65%
90%
56.3
62.5
69.1
Re
responsivity
(FN
package)
λp = 524 nm,
See Note 4
0%
15%
60%
90%
0%
35%
72.5
78.4
84.3
(counts/
μW/
cm2)
package)
λp = 640 nm,
See Note 5
80%
110%
0%
15%
0%
15%
94.2
105.3
116.3
cm2)
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.
3. The 470 nm input irradiance is supplied by an
InGaN light-emitting diode with the following characteristics:
peak wavelength
λp = 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:
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 Al
InGaP light-emitting diode with the following characteristics:
peak wavelength
λp = 640 nm, spectral halfwidth Δλ½ = 17 nm, and luminous efficacy = 155 lm/W.
6. Illuminance responsivity Rv is calculated from the irradiance responsivity Re by using the LED luminous efficacy values stated in
notes 3, 4, and 5 and using 1 lx = 1 lm/m2.
Operating Characteristics, VDD = 3 V, TA = 255C, (unless otherwise noted) (see Notes 2, 3, and 4)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
4
×
3.8
4
4.2
Gain scaling, relative to 1
× gain setting
16
×
15.2
16
16.8
Gain scaling, relative to 1
× gain setting
64
×
60.8
64
67.2
Dark ADC count value
Ee = 0, 64
× gain setting, T
int = 400 ms
0
3
15
counts
Maximum digital count value
Prescale = 1, Tint = 400 ms (Note 1)
65535
counts
fosc
Oscillator frequency
4.2
4.4
4.6
MHz
Internal integration time tolerance
−5
5
%
Temperature coefficient of responsivity (SYNC mode)
λ  700 nm, −40°C  TA  85°C
± 200
ppm/
°C
NOTES: 1. At shorter integration times and/or higher Prescale settings, the device will reach saturation of the analog section before the digital
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.
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.
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
times. The nominal transition between the two regions is tint = 65535/5000 = 13.1 ms.


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