TMD27727 datasheet(8/59 Pages) AMSCO

Part #	TMD27727

Description	Digital ALS and Proximity Module

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Manufacturer	AMSCO [ams AG]

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Page 8

ams Datasheet, Confidential

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[v1-20] 2014-Jul-21

TMD2772/ TMD2772WA − Electrical Characteristics

Figure 10:

ALS Characteristics, VDD = 3V, TA = 25°C, AGAIN = 16x, AEN = 1 (unless otherwise noted)

Note(s) and/or Footnote(s):

1. Optical measurements are made using small-angle incident radiation from light-emitting diode optical sources. Red 625 nm and

infrared 850 nm LEDs are used for final product testing for compatibility with high-volume production.

2. The 625 nm irradiance Ee is supplied by an AlInGaP light-emitting diode with the following typical characteristics: peak wavelength

λp = 625 nm and spectral halfwidth Δλ½ = 20 nm.

3. The 850 nm irradiance Ee is supplied by a GaAs light-emitting diode with the following typical characteristics: peak wavelength

λp = 850 nm and spectral halfwidth Δλ½ = 42 nm.

4. Unless otherwise specified, measurements are taken with ATIME= 0xF6 (27 ms).

Parameter

Test Conditions (1), (2), (3), (4)

Channel

Min

Typ

Max

Unit

ADC count value

TMD2772 (25°)

λp = 625 nm, Ee = 46.8 μW/cm

2

CH0

4000

5000

6000

counts

CH1

950

λp = 850 nm, Ee = 61.7 μW/cm

2

CH0

4000

5000

6000

counts

CH1

2900

ADC count value

TMD2772WA (50°)

λp = 625 nm, Ee = 129.5 μW/cm

2

CH0

4000

5000

6000

counts

CH1

950

λp = 850 nm, Ee = 181.2 μW/cm

2

CH0

4000

5000

6000

counts

CH1

2900

ADC count value

ratio: CH1/CH0

λp = 625 nm

0.152

0.19

0.228

λp = 850 nm

0.43

0.58

0.73

Re Irradiance

responsivity

TMD2772 (25°)

λp = 625 nm

CH0

107.2

counts

/(μW/

cm2)

CH1

20.4

λp = 850 nm

CH0

81.5

CH1

47.3

Re Irradiance

responsivity

TMD2772WA (50°)

λp = 625 nm

CH0

38.6

counts

/(μW/

cm2)

CH1

7.3

λp = 850 nm

CH0

27.6

CH1

16.0

Gain scaling,

relative to 1× gain

setting

AGAIN = 1× and AGL = 1

0.16

x

AGAIN = 8× and AGL = 0

7.2

8.0

8.8

AGAIN = 16× and AGL = 0

14.4

16.0

17.6

AGAIN = 120× and AGL = 0

108

120

132

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