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Sitronix

STK3101-90H Datasheet Preview

STK3101-90H Datasheet

Ambient Light Sensor and Proximity Sensor

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Sitronix
STK3101-90H
Ambient Light Sensor and Proximity Sensor with I2C interface
DATA SHEET
Version: 1.14
Dated: 2012-08-08
Date
2012.08.08
2012.07.06
2012.06.27
20120618
2012.05.11
2012.04.18
2012.03.27
2012.02.17
2012.01.13
2011.12.01
2011.11.17
2011.08.26
2011.08.01
2011.07.12
2011.06.16
Version
1.14
1.13
1.12
1.11
1.10
1.09
1.08
1.07
1.06
1.05
1.04
1.03
1.02
1.01
1.0
Modified Items
Increase 0x82 PS register & ALS min. sensitivity
Modify DC Characteristics
Increase DC Characteristics
Modify application circuit.
Increase ALS Dynamic Range.
Modify ALS max detect range.
Increase I2C sequential Read Diagram.
Increase SW Reset register, and SW-Reset request.
Modify PS Interrupt State Diagram and add limitation of
register 0x08 bit 0
Modify I2C ACK Diagram (from H to L) to match IC design
Add PS Interrupt State Diagram
Modify Application Circuit
Add Tape and Reel Diagram
Add ESD spec.
Modify Description and Feature
Add Optical Center Relative to Package Center Diagram
Add Reference PCB Layout Diagram
Modify register “GAIN_ALS” from 2 bits to 1 bit
Modify reflow figure
Modify Application Circuit
Modify Pin Description
Add Reflow item
New Released.
publisher
Lucas
Lucas
Lucas
Lucas
Lucas
Lucas
Lucas
Lucas
YL
YL
YL
YL
YL
YL
WS
Note! Information provided within this document is subject to change without notice.
Sitronix reserves the right to change the product design without notice to its users.
www.sitronix.com.tw
@copyright 2009 Sitronix Technology Corp.




Sitronix

STK3101-90H Datasheet Preview

STK3101-90H Datasheet

Ambient Light Sensor and Proximity Sensor

No Preview Available !

Sitronix
STK3101-90H REV:1.14
1. OVERVIEW
Description
The STK3101-90H is an integrated ambient and infrared
light to digital converter with a built-in IR LED driver and
I2C Interface. This device provides not only ambient light
sensing to allow robust backlight/display brightness
control but also infrared sensing to allow proximity
estimation featured with interrupt function.
For ambient light sensing, the STK3101-90H
incorporates a photodiode, timing controller and ADC in
a single chip. The excellent spectral response is
designed to be close-to human eye. The STK3101-90H
is suitable for detecting a wide range of light intensity
environment. The maximum detecting light intensity is
32K Lux.
For proximity sensing, the STK3101-90H also
incorporates a photodiode, timing controller and ADC in
the same chip. The best spectral sensitivity is around
850nm used to sense the infrared light. The STK3101-
90H provides programmable sink current setting to drive
IR LED and employs a noise cancellation scheme to
highly reject unwanted ambient IR noise.
The STK3101-90H has excellent temperature
compensation, robust on-chip refresh rate setting
without external components. Software shutdown mode
control is provided for power saving application. The
STK3101-90H operating voltage range is 2.5V to 3.6V.
Feature
Convert light intensity to 16-bit digital data format
Excellent ambient light sensing response: intuitive
close to human eye, not a conventional
approximation through the calculation between
clear and IR sensing output
Excellent temperature compensation: -40 to 85
High detecting dynamic range
Standard I2C protocol interface
Immunity to 50Hz/60Hz fluorescent light flicker
Flicker detection for light source.
Software shutdown mode control
Maximum detecting ambient light intensity 57K Lux
Ambient IR noise cancellation during proximity
sensing
Adjustable IRLED drive current, 100mA and
200mA
Package: OPLGA 2.35x1.8x1.0(mm)
Lead-free package (RoHS compliant)
Applications
Mobile Phone, Smart-phone, PDA
Sitronix
1


Part Number STK3101-90H
Description Ambient Light Sensor and Proximity Sensor
Maker Sitronix
Total Page 22 Pages
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