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参数资料
| 型号： | VCNL4000 DEMO KIT |
| 厂商： | Vishay Semiconductors |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | USB SENSOR KIT FOR VCNL4000 |
| 标准包装： | 1 |
| 传感器类型： | 近程，红外线和环境光 |
| 传感范围： | 20cm（7.9"） |
| 接口： | I²C |
| 电源电压： | 5 VDC，USB 供电 |
| 嵌入式： | 否 |
| 已供物品： | 板，CD |
| 已用 IC / 零件： | VCNL4000 |
| 相关产品： | 751-1505-1-ND - IC OPTICAL SENSOR I2C 12-LLP 751-1505-6-ND - IC OPTICAL SENSOR I2C 12-LLP 751-1505-2-ND - IC OPTICAL SENSOR I2C 12-LLP |
Application Note
www.vishay.com
Vishay Semiconductors
VCNL4000, VCNL4010, and VCNL4020 Demo Kit
Clear Display
Clears the upper and lower window graphs and resets the
‘Data#’ to zero. The Proximity Value field near the bottom of
the screen is not cleared. This field will be updated with the
next measurement.
Ambient Light Value
Displays the ambient light value in binary form only.
Illuminance
Displays the ambient light level in lux. It is calculated by
dividing the number of counts by four. For example, there
are 615 counts which, when divided by four, results in
153.75.
Figure of Merit
The ideal ambient light sensor will produce exactly the same
output (counts) for the same brightness regardless of the
source of light. In reality, silicon-based ambient light sensors
will produce slightly different readings for halogen (2856 K
CIE illuminant A), incandescent, fluorescent and white LED
sources. Figure 2 shows the average response for the
VCNL4000 ambient light sensors for all the above light
sources and graphs the number of counts versus lux value
for each light source. The halogen lamp shows a factor of
5.1 for digital counts versus lux, the fluorescent lamp shows
a factor of 3.2 and white LEDs shows a factor of 4.1. The
average response is a factor of 4 counts per lux. As shown
in Figure 1, a count of 1000 corresponds to 250 lx. This
same count could be 200 lx for the halogen lamp or 310 lx
for the fluorescent lamp. The overall tolerance for the
VCNL4000 ambient light sensor for different light sources is
- 22 % to + 24 %.
While the VCNL4000 has a sensitivity of 0.25 lux per count,
the VCNL4010 and VCNL4020 have a sensitivity of 0.23 lux
per count.
100 000
10 000
1000
100
10
1
Fig. 2 - VCNL40x0 Measurements (cts) vs. Illuminance (lx)
VCNL4010 AND VCNL4020 DEMO KITS
The VCNL4010, VCNL4020, and VCNL3020 have two
additional features compared to the VCNL4000: the first is
an additional measurement mode called ‘self timed mode’
and the second is the interrupt feature. These two features
required an upgrade in software.
For proximity, the ‘selftimed mode’ was added to ‘single
measurement’ and ‘periodic measurement’ as a selection
under the proximity mode section. The measurement
parmeter section has been retitled as proximity settings.
Under this section the measurement rate selection window
was added. Rather than setting a delay time that was
convereted to a rate, users can actually select the
measurement rate. The measurement speed and digital
noise title headers were eliminated but the data under these
sections is still displayed in the new software. All other
features are unchanged for proximity. See screen shot 4.
0.1
1
10
100
1000
10 000
E V - Illuminance (lx)
Fig. 1 - Ambient Light Values vs. Illuminance
Revision: 12-Mar-12
6
Document Number: 83395
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| VCNL4000-GS08 | 功能描述:近程传感器 Proximity/ALS sensor RoHS:否 制造商:Vishay Semiconductors 感应方式:Optical 感应距离:1 mm to 200 mm 电源电压:2.5 V to 3.6 V 安装风格:SMD/SMT 输出配置:Digital 最大工作温度:+ 85 C 最小工作温度:- 25 C 系列:VCNL3020 |
| VCNL4000-GS18 | 制造商:Vishay Angstrohm 功能描述:Proximity Sensor 20cm 2.5V to 3.6V 12-Pin LLP EP T/R 制造商:Vishay Semiconductors 功能描述:SHORT DISTANCE PROXIMITY & ALS I?C E-4 - Tape and Reel |
| VCNL4010 | 制造商:Vishay 功能描述:a fully integrated proximity and ambientlight sensor. |
| VCNL4010-GS08 | 功能描述:近程传感器 Proximity/ALS sensor RoHS:否 制造商:Vishay Semiconductors 感应方式:Optical 感应距离:1 mm to 200 mm 电源电压:2.5 V to 3.6 V 安装风格:SMD/SMT 输出配置:Digital 最大工作温度:+ 85 C 最小工作温度:- 25 C 系列:VCNL3020 |
| VCNL4010-GS18 | 制造商:Vishay Angstrohm 功能描述:Light to CurrentAmbient Light Sensor 13-Pin SMD Tape and Reel 制造商:Vishay Angstrohm 功能描述:AMBIENT LIGHT SENSOR 制造商:Vishay Semiconductors 功能描述:SHORT DIST PROXI & ALS INCL.INT.I? C E-4 - Tape and Reel |
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