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TSL27721 数据表(PDF) 9 Page - OSRAM GmbH

部件名 TSL27721
功能描述  Light-to-Digital Converter with Proximity Sensing
PDF  58 Pages
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制造商  OSRAM [OSRAM GmbH]
网页  http://www.osram.com
标志 OSRAM - OSRAM GmbH

TSL27721 数据表(HTML) 9 Page - OSRAM GmbH

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Page 8
Datasheet, Public
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[v2-00] 2023-Mar-30
TSL2772 − Absolute Maximum R atings
Figure 8:
ALS Characteristics, VDD = 3V, TA = 25°C, AGAIN = 16x, AEN = 1 (unless otherwise noted)
Note(s):
1. Optical measurements are made using small-angle incident radiation from light-emitting diode optical sources. Visible white LEDs
and infrared 850 nm LEDs are used for final product testing for compatibility with high-volume production.
2. The white LED irradiance is supplied by a white light-emitting diode with a nominal color temperature of 4000k.
3. The 850nm irradiance Ee is supplied by a GaAs light-emitting diode with the following typical characteristics: peak wavelength
λP = 850nm and spectral halfwidth Δλ½ = 42nm.
4. Parameter ensured by design and is not tested.
Parameter
Test Conditions
Channel
Min
Typ
Max
Unit
Dark ADC count value
Ee = 0, AGAIN = 120x,
ATIME = 0xDB (100 ms)
CH0
0
1
5
counts
CH1
0
1
5
ADC integration time
step size
ATIME = 0xFF
2.58
2.73
2.9
ms
ADC Number of
integration steps (4)
1
256
steps
ADC counts per step (4)
ATIME = 0xFF
0
1024
counts
ADC count value(4)
ATIME = 0xC0
0
65535
counts
ADC count value
White Light,
Ee = 263.9μW/cm
2,
ATIME = 0xF6 (27ms) (2)
CH0
4000
5000
6000
counts
CH1
680
λP = 850 nm,
Ee = 263.4μW/cm
2,
ATIME = 0xF6 (27ms) (3)
CH0
4000
5000
6000
CH1
2850
ADC count value ratio:
CH1/CH0
White Light, ATIME 0xF6 (27ms) (2)
0.086
0.136
0.186
λP = 850nm, ATIME 0xF6 (27ms)
(3)
0.456
0.570
0.684
Re
Irradiance responsivity
White Light,
ATIME = 0xF6 (27ms) (2)
CH0
18.9
counts/
(μW/cm2)
CH1
2.58
λP = 850nm,
ATIME = 0xF6 (27ms) (3)
CH0
19.0
CH1
10.8
Gain scaling, relative to
1x gain setting
AGAIN = 1x and AGL = 1
0.128
0.16
0.192
x
AGAIN = 8x and AGL = 0
7.2
8.0
8.8
AGAIN = 16x and AGL = 0
14.4
16.0
17.6
AGAIN = 120x and AGL = 0
108
120
132



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