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IQ Switch®
ProxSense® Series
Copyright © Azoteq (Pty) Ltd 2015. IQS550-TS43 product sheet Page 1 of 8
All Rights Reserved. Revision 1.04 April 2015
ProxSense® IQS550-TS43
Projected Capacitive Touchscreen
Multi-touch Sensor and Controller for 4.3" LCD displays
The IQS550-TS43 combines a touchscreen sensor and controller to provide a complete touchscreen solution. The IQS550-TS43 allows cost-effective integration of a multi-touch sensor and controller with a 4.3” LCD screen.
Main Features
4.3” Touchscreen Panel with controller
IQS550 Controller
3584 x 2304 Resolution
Minimum report rate of 80Hz (dual-touch)
Up to 5 simultaneous touch co-ordinates
I2C Interface
Event mode and streaming modes
Excellent panel transparency (>85%)
Proximity low power operation (<10uA)
Supply voltage 1.65V to 3.6V
Applications
Appliances
Office equipment
Kiosks
POS Terminals
Medical equipment
Industrial Instrumentation
Figure 1.1 IQS550-TS43
IQ Switch®
ProxSense® Series
Copyright © Azoteq (Pty) Ltd 2015. IQS550-TS43 product sheet Page 2 of 8
All Rights Reserved. Revision 1.04 April 2015
1 Introduction
The IQS550-TS43 is an integrated projected capacitive touch sensor and controller based on the IQS550. The module is optimized for direct mounting on a 4.3" LCD display with a 16:9 aspect ratio. The product comes with adhesive for quick assembly. The IQS550 is automatically calibrated for optimal performance at power-on. The IQS550-TS43 must be connected to a host controller via I
2C.
2 General Specifications
Item Specification Unit
Panel diagonal size 4.3 Inch
Panel size 105 mm
65.5 mm
Tail length 40 mm
Tail width 30.5 mm
Tail offset (from right) 3.5 mm
Transparency >85 (TBD) %
PCB size 33 mm
22 mm
PCB connection 6w ZIF connector (0.5mm pitch) -
7w castellated pads for surface mount, +2 stabilization pads (2.54mm pitch)
-
Interface type I2C (400kHz maximum) -
Firmware upgrades Direct 4w flash programming (requires Azoteq CT210)
-
Boot loader (I2C) -
IQS550 Standard firmware, pre-programmed, boot loader option included
-
IQ Switch®
ProxSense® Series
Copyright © Azoteq (Pty) Ltd 2015. IQS550-TS43 product sheet Page 3 of 8
All Rights Reserved. Revision 1.04 April 2015
3 Mechanical Specifications
Figure 3.1 Touch Panel Dimensions
Figure 3.2 PCB Mechanical outline
105mm
65
.5m
m
34.5mm
30.5mm
27.5mm
15.5mm
98mm
3.5mm
40
mm
15
.5m
m
57
mm
6.5
mm
IQ Switch®
ProxSense® Series
Copyright © Azoteq (Pty) Ltd 2015. IQS550-TS43 product sheet Page 4 of 8
All Rights Reserved. Revision 1.04 April 2015
Figure 3.3 Recommended footprint for the AZP432
4 Interface description
Connector - pin number Pin name Pin Description
P1-1 / P2-6 VDDHI Input voltage (1.65V to 3.6V)
P1-2 / P2-5 NRST Hard reset input
P1-3 / P2-4 RDY Ready line (interrupt request line)
P1-4 / P2-3 SDA I2C bus data line
P1-5 / P2-2 SCL I2C bus clock line
P1-6 / P2-1 GND Signal ground
P2-7 PGM Data line for flash programming
J1-1 GND Signal ground
J1-2 J1-16 Tx14 Tx0 Transmit signals
J1-17 J1-19 GND Signal ground
J1-20 J1-29 Rx9 Rx0 Receiver lines
J1-30 GND Signal ground
1.9mm
2.4mm
1.6mm
2.7mm
0.94mm
18.34mm
32.76mm
1.7mm
1.7mm
IQ Switch®
ProxSense® Series
Copyright © Azoteq (Pty) Ltd 2015. IQS550-TS43 product sheet Page 5 of 8
All Rights Reserved. Revision 1.04 April 2015
5 Electrical Specifications
The IQS5xx-A000 datasheet specifies the electrical characteristics for the IQS550 controller. All components on the PCB are chosen for optimal performance.
Figure 5.1 AZP432 Schematic
12
345
678
91011121314
151617
181920212223242526
272829
30
J1
ZF5-30-01-T-WT
TX0TX1
TX2TX3
TX4TX5
TX6TX7
TX8TX9
TX10
RX0RX1
RX2RX3
RX4
RX5RX6
RX7RX8
C34.7uF
3V3
GND
3V3
NRST
I2C_RDY
I2C_SDA
I2C_SCL
GND
TX0
TX1TX2TX3
TX4
RX0RX1RX2RX3RX4
RX5RX6RX7
RX8
I2C Communication
PGM
TX5TX6TX7
TX8TX9TX10
C1100pF
C41uF
C2100pF
R14.75K
R24.75K
RX9
TX11TX12
TX11TX12
RX9TX1348
TX1045
TX742
TX439
TX336
TX033
SCL6
POUT3
NRST10
RX9b32
RX6b26
RX3b20
RX0b14
RX8a29
RX5a23
RX2a17
TX1146
TX1247
TX540
VSSIO37
TX134
TX641
VDDIO38
TX235
TX843
RFIN12
RDY11
TOUT4
SDA5
PGM2
VSS8
RX7b28
RX8b30
RX4b22
RX1b16
RX9a31
RX6a25
RX2b18
RX7a27
RX3a19
RX0a13
RX1a15
VDDHI7
VREG9
TX944
TX141
RX5b24
RX4a21
TAB49
U1
IQS550 TRACKPAD
3V3
GNDI2C_RDYNRST
VREGVREG
VREG
1234
56
P1
BL509-06G31-TAH1
I2C_SDA
I2C_SCL
R351R1 (DNP)
RFIN
GND
Place TP close to IQS550123
456
P2
7W-SIL-V
3V3
GNDI2C_RDYNRST
I2C_SDAI2C_SCL
TX13TX14
GND
TX13
TX14
PGM 7
& Programming
I2C Communication
IQ Switch®
ProxSense® Series
Copyright © Azoteq (Pty) Ltd 2015. IQS550-TS43 product sheet Page 6 of 8
All Rights Reserved. Revision 1.04 April 2015
6 Communications Interface
The IQS550-TS43 is designed for easy integration. The default values are optimized for typical LCD displays but can be modified through the I
2C interface for specific display configurations.
If the default values are used, no setup is required and only read commands are required. The IQS5xx-A000 datasheet describes the I
2C communication interface. Example code can be
found on the website at Example Code. This code follows the program flow diagram as shown in Figure 6.1
The X-Y data is available for the 5 strongest touches.
The application note AZD067 (IQS5xx Communication Interface) describes the general implementation of an I
2C master interface in detail.
Azoteq provides an easy to use debugging environment via a USB streaming tool (see application note AZD070 for more information)
6.1 Interface instructions
Optional: Test the panel through the IQS5xx GUI.
Obtain the available resources from www.azoteq.com under the Resources Available for Download section.
Implement the master code according to the example code and program flow shown in Figure 6.1 and consult the AZD067 application note for more detail.
Initialization procedures can be omitted for the IQS550-TS43. The defaults of the general IQS5xx code have been adapted in firmware to ensure auto-calibration and optimal defaults for the placement of the screen onto a typical 4.3" LCD display. In other words XY-data can be read directly after power-up and auto-calibration.
If the device is powered on with a hand on the panel, then re-calibration techniques will ensure correct calibration as soon as all “touches” on the panel are released.
“XY data” is the main output of the IQS550-TS43
All strongest touch points may be read in each communication window.
Each XY point is accompanied with an ID for tracking and touch strength indication for organizing data
When the ID byte has the MSB set, the ID given is for a proximity point. With the MSB cleared, the ID is given for a touch point. Therefore IDs equal to 1 to 5, are touch points.
Figure 6.1 Position of XY-data on the screen
IQ Switch®
ProxSense® Series
Copyright © Azoteq (Pty) Ltd 2015. IQS550-TS43 product sheet Page 7 of 8
All Rights Reserved. Revision 1.04 April 2015
6.2 Communications program flow
Figure 6.1 Program flow diagram
Start up
Wait for communication window to open.
(window open while READY pin HIGH)
I2C Read Routine
Read Info Byte
Read Touch ID
Read Touch XY co-ordinates
Read Touch Strength
Determine XY co-ordinates
Process touches
Read another co-ordinate?
Yes
No
IQ Switch®
ProxSense® Series
Copyright © Azoteq (Pty) Ltd 2015. IQS550-TS43 product sheet Page 8 of 8
All Rights Reserved. Revision 1.04 April 2015
Appendix A. Contact Information
USA Asia South Africa
Physical
Address
6507 Jester Blvd Bldg 5, suite 510G Austin TX 78750 USA
Rm2125, Glittery City
Shennan Rd
Futian District
Shenzhen, 518033
China
109 Main Street
Paarl
7646
South Africa
Postal
Address
6507 Jester Blvd Bldg 5, suite 510G Austin TX 78750 USA
Rm2125, Glittery City
Shennan Rd
Futian District
Shenzhen, 518033
China
PO Box 3534
Paarl
7620
South Africa
Tel +1 512 538 1995 +86 755 8303 5294
ext 808
+27 21 863 0033
Fax +1 512 672 8442 +27 21 863 1512
Email [email protected] [email protected] [email protected]
Please visit www.azoteq.com for a list of distributors and worldwide representation.
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 7,265,494 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
B2; US 7,781,980 B2; US 7,915,765 B2; US 7,994,726 B2; US 8,035,623 B2; US RE43,606 E; US 8,288,952 B2; US 8,395,395
B2; US 8,531,120 B2; US 8,659,306 B2; US 8,823,273 B2 B2; EP 1 120 018 B2; EP 1 206 168 B1; EP 1 308 913 B1; EP 1 530
178 A1; EP 2 351 220 B1; EP 2 559 164 B1; CN 1330853; CN 1783573; AUS 761094; HK 104 1401
IQ Switch®, SwipeSwitch™, ProxSense
®, LightSense™, AirButton
TM and the logo are trademarks of Azoteq.
The information in this Datasheet is believed to be accurate at the time of publication. Azoteq uses reasonable effort to maintain the information up-to-date and accurate, but does not warrant the accuracy, completeness or reliability of the information contained herein. All content and information are provided on a “as is” basis only, without any representations or warranties, express or implied, of any kind, including representations about the suitability of these products or information for any purpose. Azoteq disclaims all warranties and conditions with regard to these products and information, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property rights. Azoteq assumes no liability for any damages or injury arising from any use of the information or the product or caused by, without limitation, failure of performance, error, omission, interruption, defect, delay in operation or transmission, even if Azoteq has been advised of the possibility of such damages. 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, express or implied, by estoppel or otherwise, under any intellectual property rights. In the event that any of the abovementioned limitations or exclusions does not apply, it is agreed that Azoteq’s total liability for all losses, damages and causes of action (in contract, tort (including without limitation, negligence) or otherwise) will not exceed the amount already paid by the customer for the products. Azoteq reserves the right to alter its products, to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and information, its products, programs and services at any time or to move or discontinue any contents, products, programs or services without prior notification. For the most up-to-date information and binding Terms and Conditions please refer to www.azoteq.com.
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