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AW9203 Datasheet

3-Key Capacitive Touch Controller

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AW9203
Feb. 2019 V1.4
3-Key Capacitive Touch Controller
FEATURES
3 Capacitive key with sensitivity configurable
GENERAL DESCRIPTION
AW9203 integrates 3 capacitive sensor. The
l
RF Noise Filter
Tap Gesture detection (Single/Double/Triple
click)
Automatic Calibration for Environmental Change
Intrinsic Capacitance Compensation
tia 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
Compatible I2C Interface, VIO: 1.8V ~ 3.3V
I2C Address: 0x2C/0x2D
Single Power Supply, Voltage Range: 3.0V ~
4.5V
CSP1.59mm×1.75mmx0.57mm-13L Package
n detected and reported in status register and
external interrupt pin.
e Compatible I2C interface of 400kHz fast mode is
provided, the package is CSP1.59mm×1.75mm-
fid 13L. It requires only
supply.
3.0V-4.5V single power
APPLICATIONS
Mobile Phones, MID
n
o
Portable Media Player
Home Appliances
C
ic TYPICAL APPLICATION CIRCUIT
VBAT
inMCU/BB
VBAT
1uF
AD
GND
S1
S2
GND
S3
aw
VIO
SCL
SDA
INTN
AW9203
4.7kΩ
x3
SCL
SDA
INTN
REXT
CINT
GPO
PDN
510Ω x3
10kΩ
4.7nF
KEY PAD1
KEY PAD2
KEY PAD3
Figure 1
All trademarks are the property of their respective owners.
AW9203 Typical Application Circuit
www.awinic.com.cn
1
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD




AWINIC

AW9203 Datasheet Preview

AW9203 Datasheet

3-Key Capacitive Touch Controller

No Preview Available !

CONTENT
AW9203
Feb. 2019 V1.4
1 PIN CONFIGURATION AND TOP MARK....................................................................................................4
2 PIN DEFINITION...........................................................................................................................................4
3 FUNCTIONAL BLOCK DIAGRAM...............................................................................................................5
4 TYPICAL APPLICATION CIRCUITS ...........................................................................................................5
l
5
6
7
tia ORDERING INFORMATION ........................................................................................................................6
ABSOLUTE MAXIMUM RATINGS(NOTE 3) ....................................................................................................6
ELECTRICAL CHARACTERISTICS............................................................................................................7
8
n I2C INTERFACE TIMING ..............................................................................................................................8
9
e FUNCTIONAL DESCRIPTION .....................................................................................................................9
9.1 WORK MODE ....................................................................................................................................................... 9
9.2
9.3
9.1.1 POWER ON ............................................................................................................................................. 9
9.1.2 WORK MODE .......................................................................................................................................... 9
d RESET ................................................................................................................................................................ 10
i 9.2.1 HARDWARE RESET........................................................................................................................... 10
f 9.2.2 SOFTWARE RESET ........................................................................................................................... 10
I2C INTERFACE.................................................................................................................................................. 10
n 9.3.1 DEVICE ADDRESS ............................................................................................................................. 10
9.3.2 DATA VALIDATION............................................................................................................................. 10
o 9.3.3 ACK(ACKNOWLEDGEMENT)............................................................................................................. 10
9.3.4
9.3.5
9.3.6
C I2C START/STOP ................................................................................................................................ 11
WRITE CYCLE .................................................................................................................................... 11
READ CYCLE...................................................................................................................................... 12
9.4 OSCILLATOR ..................................................................................................................................................... 13
9.5 CAPACITIVE TOUCH DETECTION ................................................................................................................... 13
c 9.5.1 TOUCH STATUS AND INTERRUPT ................................................................................................ 13
i 9.5.2 GESTURE STATUS ............................................................................................................................ 14
10 REGISTER DESCRIPTION ......................................................................................................................15
in 10.1 REGISTER CONFIGURATION......................................................................................................................... 15
w 10.2 GLOBAL REGISTER DESCRIPTION ............................................................................................................... 17
10.2.1 IDRST, CHIP ID AND SOFTWARE RESET ...................................................................................... 17
10.2.2 GCR, GLOBAL CONTROL REGISTER............................................................................................. 17
a10.3
CAPACITIVE TOUCH DETECTION REGISTERS............................................................................................ 17
10.3.1 SLPR, SENSOR SLEEP CONTROL REGISTER .............................................................................. 17
10.3.2 KINTER, KEY INTERRUPT ENABLE REGISTER............................................................................. 17
10.3.3 AKSCR, ADJACENT KEY SUPPRESSION CONFIGURATION REGISTER .................................... 17
10.3.4 SLSR, SLIDE CONFIGURATION REGISTER................................................................................... 18
10.3.5 JDGTHRN, KEY STATUS JUDGE CONFIGURATION REGISTER .................................................. 18
10.3.6 NOISETHR, NOISE THRESHOLD REGISTER................................................................................. 18
www.awinic.com.cn
2
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD


Part Number AW9203
Description 3-Key Capacitive Touch Controller
Maker AWINIC
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AW9203 Datasheet PDF






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