IQS550-TS43 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – 10x15 channel touch panel for placement on 4.3 LCD displays

ProxSense^® Series
IQS550-TS43 user guide (quick-start)
10x15 channel touch panel for placement on 4.3" LCD displays
Introduction
Integration
The IQS550 is a capacitive sensing controller
Start by connecting the capacitive touch
designed for multi-touch applications using
panel to the module board. Add a power line
projected capacitance touch panels. This IC
to the +3V3 pad and a reference ground to
is at the heart of this touch screen solution.
GND. Add 3 more lines to SCL, SDA and
The main features include the 4.3”
RDY for clock, data and ready lines. Connect
Touchscreen Panel with a 3584 x 2304
resolution and up to 5
these wires to a master that communicates
with this I²C slave device. Add
simultaneous touch co-
the NRST line to enable a soft
ordinates. This touch panel
reset of the IQS550, offering
requires a supply voltage of
robust control against firmware
1.65V to 3.6V and
communicates with an I²C
failure. Using the NRST line is
also the fastest method of auto-
interface.
calibrating the panel for a
Operation
Characteristics
stable environment after LCD
start-up.
The module board can be
The IQS550 requires a master
mounted on a PCB
device for reading the following
touch point data over I²C:
(recommended footprint can be
found in the IQS550-TS43
 Touch ID
datasheet). Alternatively the
 Touch co-ordinates
 Touch strength
Figure 1 IQS550-TS43
module can be fixed using
adhesive or the PCB mounting
holes while opting for the 6-way ZIF
The solution can simply be powered and
connector with an FFC cable for
touch data read at a rate of up to about 80
communication.
Hz. No special pre-configuration routines are
The touch panel should only be used on 4.3”
required. Example code is available within the
IQS550-TS43 data pack (“IQS550-
TS43_datapack.zip”) to aid engineers in
planning program flow and possible custom
adjustments. See the IQS550-TS43
datasheet for a summary on the
communications interface and application
LCD displays. To install, remove rear
covering, ensure no residue on back of panel,
remove tape covering, place on display,
remove top covering, evaluate touch
performance with a custom master device or
the Azoteq CT210 USB device.
note AZD067 for the full details.
Evaluation and debugging
User Configurable Options
Various settings can be changed
on the IQS550 through I²C. See
the example code for popular and
common adjustments. For a full
set of adjustments consult the
IQS550 datasheet (IQS5xx-A000
Trackpad Datasheet).
It is recommended to evaluate a solution
using the Azoteq CT210. The USB
device communicates via I²C with
the module board. Use this method
to evaluate performance and
explore the vast amount of custom
settings available on the IQS550.
The standard IQS5xx GUI may be
Figure 2 IQS550
module board
used while consulting the AZD070
application note for connection and
GUI details.
Copyright © Azoteq 2013
IQS550-TS43 user guide (quick-start)
v1.0
For more information
visit www.azoteq.com