Datasheet

VCNL4000
www.vishay.com
Vishay Semiconductors
Rev. 1.6, 24-Aug-11
5
Document Number: 83798
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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
Fig. 11 - Relative Radiant Sensitivity vs. Angular Displacement
APPLICATION INFORMATION
VCNL4000 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.
1. Application Circuit
Fig. 12 - Application Circuit
(x) = Pin Number
0° 20°- 20°
40°
60°
80°
0.6
0.7
0.8
0.9
1.0
00.1 0.1 0.20.2 0.30.3 0.40.4 0.50.5
S(λ)
rel.
- Relative Spectral Responsivity
λ - Wavelength (nm)
22311
Vertical
Horizontal
22312-1
Host
Micro Controller
VCNL4000
I
2
C Bus Clock SCL
I
2
C Bus Data SDA
SCL (5)
SDA (4)
GND (6, 12)
V
DD
(7)
IR Anode (1)
C
2
C
4
10 μF 100 nF
C
3
100 nF22 μF
C
1
R1
10R
2.5 V to 5 V
2.5 V to 3.6 V