Download IQS232/43EV02 Evaluation Kit User Manual

IQ Switch®
ProxSens® Series
IQS232/43EV02 Evaluation Kit User Manual
IQ Switch® - ProxSense® Series
Table of Contents
IQS232/43EV02 EVALUATION KIT USER MANUAL....................................................................................................... 1
TABLE OF CONTENTS .................................................................................................................................................. 1
1
INTRODUCTION............................................................................................................................................. 1
2
EV-KIT MAINBOARD ...................................................................................................................................... 1
3
MODULE BOARDS ......................................................................................................................................... 2
4
REFERENCE DESIGNS ..................................................................................................................................... 5
1 Introduction
This user manual describes the operation of
the IQS232/43EV02 Evaluation Kit. The EVKit is manufactured in three parts, consisting of
a mainboard, and three separate plug-in
module boards. To adjust IC OTP settings, the
main board can be interfaced to any personal
computer with the Azoteq Configuration Tool
(CTxxx), and making the adjustments by
means of the USBProg software. The purpose
of the IQS232/43EV02 EV-Kit is to help
application and development engineers in
evaluating the IQS232 and IQS243 proximity
and touch sensors.
2 EV-Kit Mainboard
Figure 2.1 illustrates the evaluation kit
mainboard and the three supplied controller
modules. The mainboard supplies power and
other functions to the controller module boards
and is easily operated. Simply plug in the
desired module board into the mainboard and
turn on the mainboard by means of the on/off
slide switch. Features included in the EV-Kit
mainboard:
Modular design: Connect one of the
supplied IC modules into the mainboard,
or wire into a prototype for rapid
prototyping
Reference designs for IQS232 and
IQS243 with user proximity & touch
detection ability
LEDs to indicate proximity AND contact to
the buttons for IQS232
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
Figure 2.1 IQS232/43EV02 Mainboard
and controller modules
Can be used in Data Streaming Mode:
For details see the IQS232 and IQS243
datasheets (EV-KIT requires Azoteq
Configuration Tool CT, or Azoteq Data
Streamer DS)
Can be used in Direct mode (IQS232
only): Battery or USB powered
OTP bits can be programmed on the kit
(requires CTxxx)
Figure 2.2 illustrates the bottom view of the
EV-Kit mainboard. The EV-Kit is powered by
two 3V coin cell batteries in series, which is
regulated to 3.3V and supplied to the module
board. The EV-Kit mainboard can also draw
power from a USB source by means of the
mini-USB
connector provided on
the
mainboard.
IQS232/43EV02 Evaluation Kit User Manual
Revision 1.1
Page 1 of 6
July 2012
IQ Switch®
ProxSense® Series
USB
Power
Port
Table 3.1
IQS232 Module board
component description
(if fitted)
Component Purpose
C1, C2
Programming
and data
streaming
header
Figure 2.2
C3, C4
Bottom view of EV-Kit
mainboard
The mainboard includes a programming and
data streaming header as also illustrated in the
figure.
R6, R7, R8
The EV-Kit is interfaced to a personal
computer for data streaming and programming
OTP options, by means of the Azoteq
Configuration Tool (CTxxx).
For IC
programming and visual data streaming please
utilize the IQS232 GUI, IQS243 GUI and
USBProg software, provided on the Azoteq
website. (www.azoteq.com).
R1, R2
3 Module Boards
R3, R4, R5
1µF,
100pF
1µF,
100pF
2kΩ
470Ω
10kΩ
3.2 IQS243 Module Board
3.1 IQS232 Module board
Figure 3.1 illustrates the IQS232 Module
board. Its features include:
1 x Proximity indication LED
2 x Touch indication LEDs (One for each
channel)
Small and compact PCB layout, which is
easily wired to prototype applications
Figure 3.2 illustrates the IQS243 Module
board. Its features include:
I2C Communication interface
Small and compact PCB layout, which can
be easily wired to prototype applications
Figure 3.2
Figure 3.1
Power
supply
decoupling
capacitors
Internal
regulator
decoupling
capacitors
LED current
limiting
resistors
Sense
electrode
(Cx) series
resistors
(Added ESD
Protection)
Debug mode
pull-up
resistors
Typical value
IQS232 Module board
Top view of the IQS243
module board
Descriptions of the IQS243 module board
components are given in Table 3.2.
Descriptions of the components are given in
Table 3.1.
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
IQS232/43EV02 Evaluation Kit User Manual
Revision 1.1
Page 2 of 6
July 2012
IQ Switch®
ProxSense® Series
Table 3.2
IQS243 Module board
component description
Component Purpose
C1, C2
C3, C4
R7
R8
R9
R10
R0, R1, R2
Power
supply
decoupling
capacitors
Internal
regulator
decoupling
capacitors
RDY pull-up
resistor
SDA pull-up
resistor
SCL pull-up
resistor
Sub
Address
Select
resistor
Sense
electrode
(Cx) series
resistors
(Added
ESD
Protection)
CT200 Configuration Tool. The IQS243 GUI is
used to stream and visualize data in real-time.
Typical value
1µF,
100pF
1µF,
100pF
4.7kΩ
4.7kΩ
4.7kΩ
10kΩ
470Ω
For operation and data visualization, it is
necessary to interface the IQS243 module to a
personal computer by means of the Azoteq
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
IQS232/43EV02 Evaluation Kit User Manual
Revision 1.1
Page 3 of 6
July 2012
IQ Switch®
ProxSense® Series
Figure 3.3
IQS243 Graphical User Interface
The IQS243 Software GUI can be downloaded
from the following link:
http://www.azoteq.com/images/stories/software
/azoteq_iqs243_setup.zip
The GUI display is illustrated in Figure 3.4
where channel 3 shows a valid touch, and
proximity is detected on all other channels.
Plug in the IQS243 module into the
Mainboard
Connect the Mainboard to the Azoteq CT
Run the IQS243 Software GUI and Click
on “Start”.
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
IQS232/43EV02 Evaluation Kit User Manual
Revision 1.1
Page 4 of 6
July 2012
IQ Switch®
ProxSense® Series
4 Reference Designs
4.1 IQS232 Reference Design
VDDHI
Connect to sense buttons
(See Appnote: AZD008 for button design
guidelines)
CX0
Populate R3, R4, R5 if using IQS232 in debug mode only.
U1
R1
2
470R
CX1
VIN
8
R2
VDDHI
VDDHI
CX0
VDDHI
CX1
VREG
R6
4
2K
GND
PO0/RDY
6
7
5
R5
R3
10k
10k
10k
TO0/SDA
C3
TO1/SCL
R4
DS1
3
470R
TO0/DATA
VDDHI
C4
1uF
TO0/SDA
100pF
C2
C1
100pF
1uF
TO0
DS2
R7
TO1/SCL
2K
TO1/SCL
PO0/RF&RDY
GND
TO1
DS3
1
R8
PO0/RDY
IQS232 SOIC-8
2K
PO0
GND
GND
TO0 = Touch Output 0
TO1 = Touch Output 1
P0 = Proximity Output 0
GND
GND
IOs configured as software open drain (default)
Optional: 100pF capacitors for additional RF
immunity.
Figure 4.1
IQS232 Reference design
4.2 IQS243 Reference Design
Connect to sense buttons
(See Appnote: AZD008 for button design
guidelines)
CX0
U1
R0
2
470R
CX1
3
R1
9
470R
CX2
VIN
VDDHI
CX0
VDDHI
CX1
VREG
R8
5
4.7K
SDA
470R
R9
7
SDA
8
SCL
RDY/RF
GND
SDA
CX2
R2
VDDHI
VDDHI
4
ADR0
6
10
SDA
C4
C3
C2
C1
100pf
1uF
100pF
1uF
SCL
4.7K
SCL
R10
RDY/RF
10K
SCL
ADR0
ADR0
GND
ADR0
1
R7
RDY/RF
IQS243 MSOP-10
4.7K
GND
GND
GND
RDY
GND
Optional: 100pF capacitors for additional RF immunity.
Figure 4.2
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
IQS243 Reference design
IQS232/43EV02 Evaluation Kit User Manual
Revision 1.1
Page 5 of 6
July 2012
IQ Switch®
ProxSense® Series
The following patents relate to the device or usage of the device: US 6,249,089 B1, US 6,621,225
B2, US 6,650,066 B2, US 6,952,084 B2, US 6,984,900 B1, US 7,084,526 B2, US 7,084,531 B2,
US 7,119,459 B2, US 7,265,494 B2, US 7,291,940 B2, US 7,329,970 B2, US 7,336,037 B2, US
7,443,101 B2, US 7,466,040 B2, US 7,498,749 B2, US 7,528,508 B2, US 7,755,219 B2, US
7,772,781, US 7,781,980 B2, US 7,915,765 B2, EP 1 120 018 B1, EP 1 206 168 B1, EP 1 308 913
B1, EP 1 530 178 B1, ZL 99 8 14357.X, AUS 761094
IQ Switch®, ProxSense®, LightSense™, AirButton® and the
trademarks of Azoteq.
logo are
The information in this Datasheet is believed to be accurate at the time of publication. Azoteq
assumes no liability arising from the use of the information or the product. The applications
mentioned herein are used solely for the purpose of illustration and Azoteq makes no warranty
or representation that such applications will be suitable without further modification, nor
recommends the use of its products for application that may present a risk to human life due to
malfunction or otherwise. Azoteq products are not authorized for use as critical components in
life support devices or systems. No licenses to patents are granted, implicitly or otherwise,
under any intellectual property rights. Azoteq reserves the right to alter its products without
prior notification. For the most up-to-date information, please refer to www.azoteq.com.
WWW.AZOTEQ.COM
[email protected]
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
IQS232/43EV02 Evaluation Kit User Manual
Revision 1.1
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July 2012
Mouser Electronics
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