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AW9233CSR Datasheet(PDF) 1 Page - Shanghai awinic technology co.,ltd

Part # AW9233CSR
Description  3-Key Capacitive Touch Controller Integrated with 3-LED Driver
PDF  48 Pages
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Manufacturer  AWINIC [Shanghai awinic technology co.,ltd]
Direct Link  http://www.awinic.com.cn/index.php
Logo AWINIC - Shanghai awinic technology co.,ltd

AW9233CSR Datasheet(HTML) 1 Page - Shanghai awinic technology co.,ltd

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AW9233
June 2018 V1.2
www.awinic.com.cn
1
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
3-Key Capacitive Touch Controller Integrated with 3-LED Driver
FEATURES
3 Capacitive key with sensitivity configurable
RF Noise Filter
Tap Gesture detection (Single/Double/Triple click
and slide gesture)
Automatic Calibration for Environmental Change
Intrinsic Capacitance Compensation
8-level LED Maximum Current for each LED,
max 24.5mA
256-level Linear/Logarithmic PWM Dimming,9
bits PWM resolution
Capacitive Touch status trigger internal LED
program to create complicated touch feedback
Compatible I2C Interface, VIO: 1.8V ~ 3.3V
Single Power Supply, Voltage Range:
3.0V ~
4.5V
CSP1.59mm×1.75mm×0.57mm-16L Package
APPLICATIONS
Mobile Phones, MID
Portable Media Player
Home Appliances
GENERAL DESCRIPTION
AW9233 integrates 3 capacitive sensor and a
SRAM program-controlled 3 LED driver. By special
programming and register configuring，the touch or
gesture can trigger predefined lighting program to
generate funny and
complicated LED effect,
without the aid of external MCU.
The
capacitive
sensor
takes
advantage
of
advanced
Sigma-delta
capacitance
digital
conversion technology to achieve high sensitivity
and anti-noise capacitance detection. With internal
DSP algorithm, the touch and gesture event can be
detected and reported in status register and
external interrupt pin.
3 LED driver uses common anode current source
and PWM dimming. Each LED is 8-level driver
current selectable with dimming independently
controlled
by
external
MCU
or
internal
256word*16bit SRAM program.
Compatible I2C interface of 400kHz fast mode is
provided, the package is CSP1.59mm×1.75mm×
0.57mm-16L. It requires only 3.0V-4.5V single
power supply.
TYPICAL APPLICATION CIRCUIT
GND
GND
LED1
LED2
LED3
SCL
SDA
CINT
REXT
INTN
S1
S2
S3
MCU/BB
INTN
SDA
SCL
VIO
4.7nF
10k
4.7k
x3
AW9233
VBAT
PDN
GPO
510 x3
VBAT
1uF
AD
KEY PAD1
KEY PAD2
KEY PAD3
Figure 1
AW9233 Typical Application Circuit


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