TCS34713 datasheet(4/22 Pages) TAOS

4 / 22 page

TCS3471

COLOR LIGHT-TO-DIGITAL CONVERTER

TAOS115 − MARCH 2011

E 2011, TAOS Inc.

The LUMENOLOGY

r Company

www.taosinc.com

Optical Characteristics, VDD = 3 V, TA = 255C, GAIN = 16, ATIME = 0xF6 (unless otherwise noted) (see

Note 1)

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

λD = 465 nm

See Note 2

15%

10%

42%

65%

88%

19.2

28.8

Irradiance

responsivity

λD = 525 nm

See Note 3

25%

60%

85%

35%

22.4

33.6

(counts/

μW/

cm2)

responsivity

λD = 625 nm

See Note 4

85%

110%

15%

25%

27.2

40.8

cm2)

NOTES: 1. The percentage shown represents the ratio of the respective red, green, or blue channel value to the clear channel value.

2. The 465 nm input irradiance is supplied by an

InGaN light-emitting diode with the following characteristics:

dominant wavelength

λD = 465 nm, spectral halfwidth Δλ½ = 22 nm, and luminous efficacy = 75 lm/W.

3. The 525 nm input irradiance is supplied by an

InGaN light-emitting diode with the following characteristics:

dominant wavelength

λD = 525 nm, spectral halfwidth Δλ½ = 35 nm, and luminous efficacy = 520 lm/W.

4. The 625 nm input irradiance is supplied by a Al

InGaP light-emitting diode with the following characteristics:

dominant wavelength

λD = 625 nm, spectral halfwidth Δλ½ = 9 nm, and luminous efficacy = 155 lm/W.

RGBC Characteristics, VDD = 3 V, TA = 255C, AGAIN = 16, AEN = 1 (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Dark ADC count value

Ee = 0, AGAIN = 60

×, ATIME = 0xD6 (100 ms)

counts

ADC integration time step size

ATIME = 0xFF

2.27

2.4

2.56

ADC number of integration steps

256

steps

ADC counts per step

1024

counts

ADC count value

ATIME = 0xC0 (153.6 ms)

65535

counts

lti

t 1

× i

3.8

4.2

Gain scaling, relative to 1

× gain

16 8

Gain scaling, relative to 1

× gain

setting

16.8

setting

Wait Characteristics, VDD = 3 V, TA = 255C, Gain = 16, WEN = 1 (unless otherwise noted)

PARAMETER

TEST CONDITIONS

CHANNEL

MIN

TYP

MAX

UNIT

Wait step size

WTIME = 0xFF

2.27

2.4

2.56

Wait number of steps

256

steps

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