Azoteq IQ Switch - ProxSense Series User manual

IQ Switch
®
ProxSense
™
Series
Copyright © Azoteq (Pty) Ltd 2010. IQS132/33/43EV02 Evaluation Kit User
Manual
Page 1 of 6
All Rights Reserved. Revision 1.1 January 2012
IQS132/33/43EV02 Evaluation Kit User Manual
IQ Switch® - ProxSense
TM
Series
Table of Contents
IQS132/33/43EV02 EVALUATION KIT USER MANUAL ................................................................................................. 1
TABLE OF CONTENTS .................................................................................................................................................. 1
1 INTRODUCTION ............................................................................................................................................. 1
2 EV-KIT MAINBOARD ...................................................................................................................................... 1
3 MODULE BOARDS ......................................................................................................................................... 2
4 REFERENCE DESIGNS ..................................................................................................................................... 4
5 PCB DESIGN .................................................................................................................................................. 5
1 Introduction
This user manual describes the operation of
the IQS132/33/43EV02 Evaluation Kit. The
EV-Kit is manufactured in four 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 IQS132/33/43EV02 EV-Kit is to help
application and development engineers in
evaluating the IQS132, IQS133 and IQS143
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 IQS132, IQS133
and IQS143 with user proximity & touch
detection ability
LEDs to indicate proximity AND contact to
the buttons for IQS132 and IQS133
Figure 2.1 IQS132/33/43EV02
Mainboard and controller modules
Can be used in Data Streaming Mode:
For details see the IQS132, IQS133 and
IQS143 datasheets (EV-KIT requires
Azoteq Configuration Tool CT, or Azoteq
Data Streamer DS)
Can be used in Direct mode (IQS132 and
IQS133 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
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IQ Switch
®
ProxSense
™
Series
Copyright © Azoteq (Pty) Ltd 2010. IQS132/33/43EV02 Evaluation Kit User
Manual
Page 2 of 6
All Rights Reserved. Revision 1.1 January 2012
mini-USB connector provided on the
mainboard.
Figure 2.2 Bottom view of EV-Kit
mainboard
The mainboard includes a programming and
data streaming header as also illustrated in the
figure.
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 VisualProxSense and USBProg
software, provided on the Azoteq website.
(www.azoteq.com).
3 Module Boards
3.1 IQS132 Module board
Figure 3.1 illustrates the IQS132 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 3.1 IQS132 Module board
Descriptions of the components are given in
Table 3.1.
Table 3.1 IQS132 Module board
component description
Component Purpose Typical value
C1, C2
Power
supply
decoupling
capacitors
1µF,
100pF
C3, C4
Internal
regulator
decoupling
capacitors
1µF,
100pF
R2, R3, R4 LED
current
limiting
resistors
2kΩ
R0, R1 Sense
antenna
(Cx) series
resistors
(Added
ESD
Protection)
470Ω
R5 1-Wire
Comms
pullup
resistor
3.3kΩ
3.2 IQS133 Module Board
Figure 3.2 illustrates the IQS133 Module
board. Its features include:
1 x Proximity indication LED
3 x Touch indication LEDs (One for each
channel)
Small and compact PCB layout, which is
easily wired to prototype applications
Programming
and data
streaming
header
USB
Power
Port
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IQ Switch
®
ProxSense
™
Series
Copyright © Azoteq (Pty) Ltd 2010. IQS132/33/43EV02 Evaluation Kit User
Manual
Page 3 of 6
All Rights Reserved. Revision 1.1 January 2012
Figure 3.2 IQS133 module board
Descriptions of the IQS133 module board
components are given in Table 3.2.
Table 3.2 IQS133 Module board
component description
Component Purpose Typical value
C1, C2
Power
supply
decoupling
capacitors
1µF,
100pF
C3, C4
Internal
regulator
decoupling
capacitors
1µF,
100pF
R3, R4, R5,
R6
LED
current
limiting
resistors
2kΩ
R0, R1, R2 Sense
antenna
(Cx) series
resistors
(Added
ESD
Protection)
470Ω
R8 1-Wire
Comms
pullup
resistor
3.3kΩ
3.3 IQS143 Module Board
Figure 3.3 illustrates the IQS143 Module
board. Its features include:
I
2
C Communication interface
Small and compact PCB layout, which can
be easily wired to prototype applications
Figure 3.3 Top view of the IQS143
module board
Descriptions of the IQS143 module board
components are given in Table 3.3.
Table 3.3 IQS143 Module board
component description
Component Purpose Typical value
C1, C2
Power
supply
decoupling
capacitors
1µF,
100pF
C3, C4
Internal
regulator
decoupling
capacitors
1µF,
100pF
R7 RDY
pullup
resistor
10kΩ
R8 SDA pullup
resistor
10kΩ
R9 SCL pullup
resistor
10kΩ
R10 Shield
pullup
resistor
10kΩ
R0, R1, R2 Sense
antenna
(Cx) series
resistors
(Added
ESD
Protection)
470Ω
For operation and data visualization, it is
necessary to interface the IQS143 module to a
personal computer by means of the Azoteq
CT200 Configuration Tool. The IQS143 GUI is
used to stream and visualize data in real-time.
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IQ Switch
®
ProxSense
™
Series
Copyright © Azoteq (Pty) Ltd 2010. IQS132/33/43EV02 Evaluation Kit User
Manual
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All Rights Reserved. Revision 1.1 January 2012
GND
C1
1uF
VDDHI
C3
1uF
GND
C2
100pF
C4
100pF
CX0 R0
470R
CX1 R1
470R
TO0/DATA
TO1
POUT
GND
VDDHI
R2
2K
R3
2K
DS0
DS1
R4
2K
PROX0
TO0/DATA
TO1
POUT
TO0
TO1
PO0
R5
3K3
VDDHI
VIN
GND
VDDHI
GND
GND 1
VDDHI 3
VREG 4
CX0
2
CX1
8
PO0
5
TO0/DATA
6
TO1
7
U1
IQS132 SOIC-8
Connect to sense buttons
(See Appnote: AZD008 for button design
guidelines)
TO0 = Touch Output 0
TO1 = Touch Output 1
P0 = Proximity Output 0
IOs configured as software open drain (default)
Pull-up resistor required to use 1-wire protocol.
Optional: 100pF capacitors for additional RF
immunity.
GND
C1
1uF
VDDHI
C3
1uF
GND
C2
100pF
C4
100pF
CX0 R0
470R
CX1 R1
470R
TO0/DATA
TO1
POUT
GND
VDDHI
R3
2K
R4
2K
DS0
RED
DS1
RED
R5
2K
DS2
RED
TO0/DATA
TO1
TO2
TO0
TO1
TO2
R8
10K
VDDHI
VIN
GND
VDDHI
GND
CX2 R2
470R
TO2
R6
2K
PROX0
BLUE
POUT
PO0
GND 1
VDDHI 4
VREG 5
CX0
2
CX1
3
POUT
6
CX2
9
TO2
10
TO0/DATA
7
TO1
8
U1
IQS133 MSOP-10
Connect to sense buttons
(See Appnote: AZD008 for button design
guidelines)
TO0 = Touch Output 0
TO1 = Touch Output 1
PO0 = Proximity Output
IOs configured as software open drain (default)
Pull-up resistor required to use 1-wire protocol.
Optional: 100pF capacitors for additional RF
immunity.
GND
C1
1uF
VDDHI
C4
100pf
GND
C2
100pF
C3
1uF
CX0 R0
470R
CX1 R1
470R
RDY/RF
SDA
SHLD
GND
VDDHI
R8
100K
R9
100K
R10
10K
SDA
SCL
SHLD
SDA
SCL
SHLD
VIN
GND
VDDHI
GND
CX2 R2
470R
SCL
R7
100K
RDY/RF
RDY
GND 1
VDDHI 4
VREG 5
CX0
2
CX1
3
SHLD
10
CX2
9
RDY/RF
6
SDA
7
SCL
8
U1
IQS143 MSOP-10
Connect to sense buttons
(See Appnote: AZD008 for button design
guidelines)
Optional: 100pF capacitors for additional RF
immunity.
4 Reference Designs
4.1 IQS132 Reference Design
Figure 4.1 IQS132 Reference design
4.2 IQS133 Reference Design
Figure 4.2 IQS133 Reference design
4.3 IQS143 Reference Design
Figure 4.3 IQS143 Reference design
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IQ Switch
®
ProxSense
™
Series
Copyright © Azoteq (Pty) Ltd 2010. IQS132/33/43EV02 Evaluation Kit User
Manual
Page 5 of 6
All Rights Reserved. Revision 1.1 January 2012
5. PCB Design
5.1 Module PCB Design
Figure 5.1.1 Top layer component placement
Figure 5.1.2 Bottom layer component placement
4.2 Board Plugin PCB Design for IQS132/33/43 Modules
Figure 5.2.1 Top layer component placement
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IQ Switch
®
ProxSense
™
Series
Copyright © Azoteq (Pty) Ltd 2010. IQS132/33/43EV02 Evaluation Kit User
Manual
Page 6 of 6
All Rights Reserved. Revision 1.1 January 2012
Figure 5.2.2 Bottom layer component placement
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, US7,772,781, US 7,781,980 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™, AirButton® and the IQ Logo are trademarks of Azoteq.
The information appearing in this application note is believed to be accurate at the time of publication. However, Azoteq assumes no
responsibility arising from the use of the specifications described. 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 contact [email protected] or refer to the website.
WWW.AZOTEQ.COM
[e-mail]
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