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PDF ( 数据手册 , 数据表 ) IQS213A

零件编号 IQS213A
描述 3-Channel Capacitive Touch/Swipe Function Controller
制造商 Azoteq
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IQS213A 数据手册, 描述, 功能
IQ Switch®
ProxSense® Series
IQS213/A Datasheet
IQSwitch® - ProxSense® Series
3-Channel Capacitive Touch/Swipe Function Controller
Overview
Unparalleled Features
Sub 5µA* current consumption (“Zero-Power” electronic switch).
Internal Capacitor Implementation (ICI) Reference capacitor on-chip
Automatic Tuning Implementation (ATI) - Automatic tuning for optimal operation in various
environments & compensation against sensitivity reducing objects
IQS213A advised for applications with high load-capacitances and high sensitivity
requirements.
The IQS213(A) ProxSense® IC is a fully integrated two or three channel capacitive swipe function
sensor with market leading sensitivity and automatic tuning of the sense electrodes. The
IQS213(A) provides a minimalist implementation requiring few external components, with OTP-
option settings and an I2C-compatible interface that allow configuration for numerous applications.
Main Features
2 or 3 Channel (Projected or Self Capacitance) Input device
Swipe Function or Differentiated Touch and Distributed Proximity Electrode Implementation
Variable User Interface with Adjustable Swipe Function Configuration
Auto-Off and Advanced Auto-Off Warning Function
Supply voltage: 1.8V to 3.6V
Internal voltage regulator and reference capacitor
Advanced on-chip digital signal processing
OTP (One Time Programmable) options available
I2C compatible interface
Low Power Modes (sub 4µA*)
Variable Proximity & Touch Thresholds
Small outline MSOP-10 package
Applications
Sanitary ware, toys, office equipment
Flashlights, headlamps, keychain lights
Splash- / waterproof devices
Swipe-to-Unlock / Wake from Standby applications
Replacement for electro-mechanical switches
Advantages
Prevents accidental activation of conventional touch sensors
Improved digital filtering to reduce external noise
High immunity against aqueous substances
Highly adjustable device with continuous data or event driven I2C communication
Available options
TA
-40°C to 85°C
MSOP10
IQS213A / IQS213
*Current consumption dependant on selected Low Power settings.
Copyright © Azoteq (Pty) Ltd 2011
All Rights Reserved
IQS213A (IQS213) Datasheet
Revision 2.1
Page 1 of 46
March 2014







IQS213A pdf, 数据表
IQ Switch®
ProxSense® Series
5.2 User Selectable Configuration Options
bit7
THALT1
Table 5.1 : User Selectable Configuration Options : Bank 0
Bank 0
bit0
THALT0
LOGIC FLOAT RX PROJ
IC TYPE2 IC TYPE1 IC TYPE0
Bank0: bit7:6
Bank0: bit5
Bank0: bit4
Bank0: bit3
Bank0: bit2:0
THALT1:THALT0: LTA Halt Time
Section 6.5
00 = 2.5s
01 = 20s
10 = 60s
11 = Never
LOGIC: Output Logic
0 = Active Low1
1 = Active High
Section 6.4
FLOAT RX: Float Sense Electrodes
Section 6.8
0 = No
1 = Yes
PROJ: Capacitive Technology
Section 6.2
0 = Self Capacitance
1 = Projected Capacitance
IC TYPE: Select IC type
Section 6.1
000 = 1zz 12z z2z
001 = 1zz x2x zz3
010 = 1zz z2z zz3
011 = 1zz 12z z2z z23 zz3
100 = 2CH Normal
101 = 3CH Normal
110 = 1zz 1xz x2x zx3 zz3
111 = 1zz, x2x, zz3
- 2CH SWIPE
- 3CH SWIPE (Thresholds * 2)
- 3CH SWIPE
- 3CH SWIPE
- 2 Channel Touch Sensor
- 3 Channel Touch Sensor
- 3CH SWIPE
- 3CH SWIPE
1 Active Low configurations are software open-drain (SW OD).
Note: The proximity output on the PO/TX-pin (pin 10) is multiplexed with the transmit signal (TX)
for projected capacitance electrodes, and is Active High ONLY for Projected configurations.
Copyright © Azoteq (Pty) Ltd 2013
All Rights Reserved
IQS213A (IQS213) Datasheet
Revision 2.1
Page 8 of 46
March 2014







IQS213A equivalent, schematic
IQ Switch®
ProxSense® Series
5.3.3 Example 3: Normal Mode Operation
Example 3 illustrates the user interface (UI) and device outputs for a 2- or 3-Channel Normal
Mode (TOUCH) Device, with optional toggle state outputs. Note that the lower three bits of
Bank2 are reserved for Toggle options, when the IC TYPE is selected in a Normal Mode
configuration. The Normal Mode (i.e Touch) device can be either Self- or Projected Capacitive
with either Active High or Active Low (Logic) outputs.
5.3.3.1 Example 3.1: 2-Channel Normal Mode No Toggle Active, Active Low Logic
bit7
THALT1
N/A
THALT0
N/A
LOGIC
0
Bank 0
FLOAT RX PROJ
N/A N/A
IC TYPE2
1
IC TYPE1
0
bit0
IC TYPE0
0
bit7
ACF
N/A
Bank 2: Normal Touch IC
CHG_FRQ
N/A
Toggle
CH3
0
Toggle
CH2
0
bit0
Toggle
CH1
0
Figure 5.3 : IQS213A (IQS213) Setup example 3.1
5.3.3.2 Example 3.2: 3-Channel Normal Mode All Toggles Active, Active High Logic
bit7
THALT1
N/A
THALT0
N/A
LOGIC
1
Bank 0
FLOAT RX PROJ
N/A N/A
IC TYPE2
1
IC TYPE1
0
bit0
IC TYPE0
1
bit7
ACF
N/A
Bank 2: Normal Touch IC
CHG_FRQ
N/A
Toggle
CH3
1
Toggle
CH2
1
bit0
Toggle
CH1
1
Copyright © Azoteq (Pty) Ltd 2013
All Rights Reserved
IQS213A (IQS213) Datasheet
Revision 2.1
Page 16 of 46
March 2014










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