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IQS213A の電気的特性と機能

IQS213AのメーカーはAzoteqです、この部品の機能は「3-Channel Capacitive Touch/Swipe Function Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 IQS213A
部品説明 3-Channel Capacitive Touch/Swipe Function Controller
メーカ Azoteq
ロゴ Azoteq ロゴ 




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IQS213A Datasheet, IQS213A PDF,ピン配置, 機能
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

1 Page





IQS213A pdf, ピン配列
IQ Switch®
ProxSense® Series
1 Functional Overview
The IQS213A (IQS213) is a two or three
channel capacitive proximity and touch
sensor with variable swipe function
configurations. Additional features include
internal voltage regulation and reference
capacitor (CS), which enables cost efficient
and minimal component designs. The device
offers flexible design approaches by allowing
the connection of two or three sense
antennas in either surface or projected
capacitance configurations.
For swipe function applications the device
has a single logic output to indicate swipe
actions and one complementary output for
consecutive swipe/touch activities. The
device can also be configured to operate with
individual touch outputs, with an additional
proximity output when implementing surface
capacitance sense electrodes.
by the digital circuitry. For projected-
capacitance configurations the capacitance is
measured between the transmit (TX) and
receive (CRX) pins. The measuring process
is referred to as a conversion and consists of
the discharging of CS and CX, the charging of
CX and then a series of charge transfers from
CX to CS until a trip voltage is reached. The
number of charge transfers required to reach
the trip voltage is referred to as the Count
(CS) Value.
The capacitance measurement circuitry
makes use of an internal CS and voltage
reference (VREG).
The analogue circuitry further provides
functionality for:
Power on reset (POR) detection.
Brown out detection (BOD).
Full control by a master device is achieved by
configuring the logic outputs in a serial data
(I2C) communication option on TO0 (SCL),
TO1 (SDA) and TO2 (RDY).
The device automatically tracks slow varying
environmental changes via various filters,
detects noise and has an Automatic Tuning
Implementation (ATI) to tune the device for
optimal sensitivity.
1.1 Applicability
All specifications, except where specifically
mentioned otherwise, provided by this
datasheet are applicable to the following
ranges:
Temperature: -40°C to +85°C
Supply voltage (VDDHI): 1.8V to 3.6V
2 Analogue Functionality
For self-capacitance configured sense
electrodes the analogue circuitry measures
the capacitance of the sense antennas
attached to the CX pins through a charge
transfer process that is periodically initiated
3 Digital Functionality
The digital processing functionality is
responsible for:
Device setup from OTP settings after
POR.
Management
events.
Initiation of
selected rate.
of BOD and WDT
conversions at the
Processing of CS and execution of
algorithms.
Monitoring and automatic execution of
the ATI algorithm.
Signal processing and digital filtering.
Detection of PROX and TOUCH
events.
Managing outputs of the device.
Managing serial communications.
Manage programming of OTP
options.
Copyright © Azoteq (Pty) Ltd 2011
All Rights Reserved
IQS213A (IQS213) Datasheet
Revision 2.1
Page 3 of 46
March 2014


3Pages


IQS213A 電子部品, 半導体
IQ Switch®
ProxSense® Series
4.2.3 Design Rules for Harsh EMC Environments
Figure 4.3 : EMC Design Rules
Applicable application notes: AZD013, AZD015, AZD051, AZD052.
4.2.4 High Sensitivity
Through patented design and advanced signal processing, the device is able to provide
extremely high sensitivity to detect proximity. This enables designs to detect proximity at
distances that cannot be equaled by most other products. When the device is used in
environments where high levels of noise exist, a reduced proximity threshold is proposed to
ensure reliable functioning of the sensor.
When the capacitance between the sense antenna and ground becomes too large the
sensitivity of the device may be influenced. For more guidelines on layout, please refer to
application note AZD008, available on the Azoteq web page: www.azoteq.com.
Copyright © Azoteq (Pty) Ltd 2011
All Rights Reserved
IQS213A (IQS213) Datasheet
Revision 2.1
Page 6 of 46
March 2014

6 Page



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部品番号部品説明メーカ
IQS213

3-Channel Capacitive Touch/Swipe Function Controller

Azoteq
Azoteq
IQS213A

3-Channel Capacitive Touch/Swipe Function Controller

Azoteq
Azoteq


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