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VCNL4010
1.0
www.vishay.com
0°
20°
Vishay Semiconductors
0.9
0.8
Vertical
Horizontal
40°
0.7
60°
0.6
80°
0.5 0.4 0.3 0.2 0.1 0
22311
Fig. 11 - Relative Radiant Sensitivity vs. Angular Displacement
(Ambient Light Sensor)
APPLICATION INFORMATION
VCNL4010 is a cost effective solution of proximity and ambient light sensor with I 2 C bus interface. The standard serial digital
interface is easy to access “Proximity Signal” and “Light Intensity” without complex calculation and programming by external
controller. Beside the digital output also a flexible programmable interrupt pin is available.
1. Application Circuit
2.5 V to 5.0 V
C1
C2
1.7 V to 5.0 V
22 μF 100 nF
R2 R3 R4
2.5 V to 3.6 V
R1
IR_Anode (1)
10R
C4
C3
V DD (7)
10 μF 100 nF
VCNL4010
INT (6)
Ho s t
Micro Controller
G PIO
G ND (12, 13)
S CL (5)
S DA (4)
I 2 C Bu s Clock S CL
I 2 C Bu s Data S DA
22312-2
Fig. 12 - Application Circuit
(x) = Pin Number
Note
? The interrupt pin is an open drain output. The needed pull-up resistor may be connected to the same supply voltage as the application
controller and the pull-up resistors at SDA/SCL. Proposed value R2 should be >1 k Ω , e.g. 10 k Ω to 100 k Ω .
Proposed value for R3 and R4, e.g. 2.2 k Ω to 4.7 k Ω , depend also on the I 2 C bus speed.
For detailed description about set-up and use of the interrupt as well as more application related information see AN: “Designing VCNL4010
into an Application”.
Rev. 1.4, 29-Oct-13
5
Document Number: 83462
For technical questions, contact: sensorstechsupport@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
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