CODING INTERNATIONAL CO LTD

Ambient Light Optical Sensor
Vishay Intertechnology Corporation announced a whole new fully integrated vicinity and ambient lighting optical sensor together with the industry’s lowest peak of 0.Eight mm. The VCNL4020 brings together an IR emitter, the photo-pin-diode for proximity, an ambient light alarm, a signal processing Ed, and a 16-bit ADC in one small 4.8 mm x 2.3 mm x 3.8 mm rectangular leadless (LLP) package. The 3-in-1 sensor features an disturb function, supports I2C bus communication interface, and greatly simplifies eye-port and sensor position in a wide variety of customer and industrial software.For mobile devices like smart phones, touch cell phones, PDAs, GPS products, and digital cameras, the new VCNL4020 saves power being a proximity sensor by turning off the exhibit backlight when close to the person while using its built-in ambient light perform for display/keypad adaptive brightness control. Containing all the circuitry needed for these types of applications in one system, the VCNL4020 eliminates the need for additional light obstacles and optical positioning of the IR emitter and photo diode. While some other devices with similar features use chip upon PCB technology that will results in package heights of 1.2 millimeter or greater, the VCNL4020 uses a proprietary technological innovation that delivers the lowest elevation on the market. This gives style engineers greater versatility in where and how they will locate the sensing unit. For additional flexibility, the VCNL4020 can function at virtually any depth or air gap below the glass window, unlike gadgets with 8-, 10-, and 12-bit promises that require depths or air gaps of merely one.5 mm or less. Lower-resolution devices must also be placed away from various other components on a pricey and dedicated adaptable circuit. The 16-bit solution of the VCNL4020 allows it is assembled on the major PCB near some other components, ensures superb cross talk defense, and is especially important since windows above the sensing unit absorb typically Ninety percent of the infrared exhaust.

Ambient Light Optical Sensor 
The VCNL4020′s interrupt operate enables the warning to work independently right up until a predefined proximity or ambient lighting event occurs, and after that it wakes up the actual microcontroller. This helps customers reduce their software work and lower their power consumption by eliminating polling communication traffic between the sensor and microcontroller.

The ambient gentle photo-pin-diode built into the VCNL4020 provides sensitivity close to those of the human eye, using a 16-bit dynamic range pertaining to ambient light detection from 0.Twenty five lux to 16 klux. The actual sensor offers 100 Hz and One hundred twenty Hz flicker sound rejection.

Featuring lower standby current utilization of 1.5 μA, the unit offers a supply voltage range of 2.Your five V to 3.Some V and I2C tour bus voltage range from A single.7 V in order to 5 V. The warning provides a Moisture Sensitivity Level (MSL) of 4 and also operates over a temperature range of -25°C to + 80 °C. The VCNL4020 is certified to RoHS Directive 2011/65/EU and WEEE 2002/96/EC, free of halogens, and compatible with lead (Pb)-free soldering.

Ambient Light Optical Sensor 
Samples and also production quantities of the modern VCNL4020 are available now, having a lead time of 8 weeks for large orders. Costs for U.Ersus. delivery only begins at $1.20 for each piece in 1,800-piece (one reel) levels. A VCNL4020 demo equipment enabling quick and easy analysis of the sensor in designers’ applications can be wanted.