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AW9119 Datasheet Preview

AW9119 Datasheet

1-Key Capacitive Touch Controller

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AW9119
Jan. 2019 V1.4
1-Key Capacitive Touch Controller Integrated with 9-LED Driver
FEATURES
1 Capacitive key with sensitivity configurable
GENERAL DESCRIPTION
AW9119 integrates 1 capacitive sensor and a
l
RF Noise Filter
Tap Gesture detection (Single/Double click)
Automatic Calibration for Environmental Change
Intrinsic Capacitance Compensation
8-level LED Maximum Current for each LED,
tia SRAM program-controlled 9 LED driver. By special
programming and register configuringthe touch or
gesture can trigger predefined lighting program to
generate funny and complicated LED effect,
without the aid of external MCU.
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
The
capacitive
sensor
n takes advantage
of
e advanced Sigma-delta capacitance digital
conversion technology to achieve high sensitivity
and anti-noise capacitance detection. With internal
Compatible I2C Interface, VIO: 1.8V ~ 3.3V
Single Power Supply, 3.0V ~ 4.5V
3mm×3mm QFN20L Package
APPLICATIONS
Mobile Phones, MID
Portable Media Player
fid DSP algorithm, the touch and gesture event can be
detected and reported in status register and
external interrupt pin.
9 LED driver uses common anode current source
nand PWM dimming. Each LED is 8-level driver
current selectable with dimming independently
ocontrolled by external MCU
256word*16bit SRAM program.
or
internal
Home Appliances
C
Compatible I2C interface of 400kHz fast mode is
provided, the package is 3mm×3mm QFN20L. It
requires only 3.0V-4.5V single power supply.
ic TYPICAL APPLICATION CIRCUIT
VBAT
in
VBAT
1mF
GND
LED1
LED2
LED3
GND
LED4
aw
MCU
VIO
SCL
4.7kΩ
x3
GND
LED5
LED6
AW9119
LED7
LED8
LED9
SCL
CX
SDA
SDA
REXT
INTN
GPO
INTN
PDN
CINT
500Ω
10kΩ
4.7nF
KEY PAD
Figure 1
All trademarks are the property of their respective owners.
www.awinic.com.cn
AW9119 Typical Application Circuit
1
Copyright © 2015 SHANGHAI AWINIC TECHNOLOGY CO., LTD




AWINIC

AW9119 Datasheet Preview

AW9119 Datasheet

1-Key Capacitive Touch Controller

No Preview Available !

AW9119
Jan. 2019 V1.4
CONTENT
1 PIN CONFIGURATION AND TOP MARK....................................................................................................5
2 PIN DEFINITION...........................................................................................................................................5
3 FUNCTIONAL BLOCK DIAGRAM...............................................................................................................6
l
4
5
6
7
8
TYPICAL APPLICATION CIRCUITS ...........................................................................................................6
ORDERING INFORMATION ........................................................................................................................7
ia ABSOLUTE MAXIMUM RATINGS(NOTE 3) ....................................................................................................7
t ELECTRICAL CHARACTERISTICS............................................................................................................8
n I2C INTERFACE TIMING ..............................................................................................................................9
9
e FUNCTIONAL DESCRIPTION ...................................................................................................................10
9.1
9.2
9.3
fid WORK MODE ..................................................................................................................................................... 10
RESET ................................................................................................................................................................ 10
9.2.1 HARDWARE RESET........................................................................................................................... 10
9.2.2 SOFTWARE RESET ........................................................................................................................... 10
I2C INTERFACE.................................................................................................................................................. 10
9.3.1
9.3.2
n DEVICE ADDRESS ............................................................................................................................. 10
DATA VALIDATION............................................................................................................................. 11
9.3.3
9.3.4
o ACK(ACKNOWLEDGEMENT)............................................................................................................. 11
I2C START/STOP ................................................................................................................................ 11
9.4
C 9.3.5 WRITE CYCLE .................................................................................................................................... 12
9.3.6 READ CYCLE...................................................................................................................................... 12
OSCILLATOR ..................................................................................................................................................... 13
9.5
9.6
ic CAPACITIVE TOUCH DETECTION ................................................................................................................... 13
9.5.1 TOUCH STATUS AND INTERRUPT ................................................................................................ 14
9.5.2 GESTURE STATUS ............................................................................................................................ 14
LED DRIVER ...................................................................................................................................................... 15
9.6.1
9.6.2
9.6.3
in LED BRIGHTNESS CONTROLLER .................................................................................................... 15
LED CONSTANT CURRENT DRIVER ................................................................................................ 16
ASP ..................................................................................................................................................... 16
9.7 LINK TOUCH STATUS TO LED LIGHTING EFFECT......................................................................................... 23
w9.7.1 DIRECT OUTPUT MODE .................................................................................................................... 23
9.7.2 PROGRAM MODE .............................................................................................................................. 23
a10 REGISTER DESCRIPTION ......................................................................................................................25
10.1 REGISTER CONFIGURATION......................................................................................................................... 25
10.2 GLOBAL REGISTER DESCRIPTION ............................................................................................................... 27
10.2.1 IDRST, CHIP ID AND SOFTWARE RESET ...................................................................................... 27
10.2.2 GCR, GLOBAL CONTROL REGISTER............................................................................................. 27
10.3 CAPACITIVE TOUCH DETECTION REGISTERS............................................................................................ 27
www.awinic.com.cn
2
Copyright © 2015 SHANGHAI AWINIC TECHNOLOGY CO., LTD


Part Number AW9119
Description 1-Key Capacitive Touch Controller
Maker AWINIC
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AW9119 Datasheet PDF






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