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TMD37823 Datasheet(PDF) 8 Page - ams AG

Part # TMD37823
Description  Color Light-To-Digital Converter with Proximity Sensing
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

TMD37823 Datasheet(HTML) 8 Page - ams AG

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TMD3782 – 8
Datasheet - Mar. 2013 - V2
Figure TMD3782 – 11:
RGBC Characteristics, VDD = 3 V, TA = 25ºC, AGAIN = 16x, AEN = 1 (unless otherwise noted)
Notes:
1. Based on typical 3-sigma distribution. Not 100% tested.
2. Clear channel response to a red LED light source with a dominant wavelength (λD) of 615 nm and a spectral halfwidth (Δλ½)
of 20 nm.
Figure TMD3782 – 12:
Proximity Characteristics, VDD = 3 V, TA = 25ºC, PEN = 1 (unless otherwise noted)
Notes:
1. Value is factory adjusted to meet the Prox count specification. Considerable variation (relative to the typical value) is possible
after adjustment.
2. Proximity offset is the sum of optical and electrical offsets, and will change from one design implementation (or test system)
to another.
3. ILEDA is factory calibrated to achieve this specification. Offset and crosstalk directly sum with this value and is system
dependent.
4. No glass or aperture above the module. Tested value is the average of 5 consecutive readings.
Parameter
Conditions
Channel
Min
Typ
Max
Units
Dark ADC count value
Ee = 0, AGAIN = 60x,
ATIME=0xD6 (100ms)
013
counts
01
counts
(Note 1)
ADC integration time step size
ATIME = 0xFF
2.25
2.38
2.53
ms
ADC number of integration
steps
1
256
steps
ADC counts per step
0
1023
counts
ADC count value
ATIME = 0xC0 (152.3 ms)
0
65535
counts
Gain scaling, relative to 1×
gain setting (Note 2)
AGAIN = 4x
AGAIN = 16x
AGAIN = 60x
3.8
15
58
4.0
16
60
4.2
17
63
×
Parameter
Conditions
Min
Typ
Max
Units
IDD Supply current
LDR pulse on
3
mA
ADC conversion time step size
2.25
2.38
2.53
ms
LED pulse period
14
us
LED pulse width
LED on time
6.3
us
Nominal LED drive current
(measured at LDR=0.6V)
(Note 1)
PDRIVE = 0 (100%)
PDRIVE = 1 (50%)
PDRIVE = 2 (25%)
PDRIVE = 3 (12.5%)
100
50
25
12.5
mA
Proximity offset, no target
(Note 2)
PPULSE = 8
PDRIVE = 0
100
counts
Prox count, 100-mm target
(minus “Proximity offset, no
target” value) (Note 3, 4)
73 mm × 83 mm, 90% reflective Kodak
Gray Card, PPULSE = 8, PDRIVE = 0, (Note 3)
350
420
490
counts


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