IQ Switch®
ProxSense® Series
Azoteq
PROXSENSE® TRACKPAD MODULE DATASHEET
Capacitive Trackpads with Gesture Recognition for Headphones & Audio Equipment with Direct
Connection to Bluetooth SoCs.
The ProxSense® series of capacitive trackpads offers best in class sensitivity, signal to noise ratio
and power consumption. Automatic tuning for sense electrodes guarantees optimal operation over
production and environmental change.
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Swipe Down
x
Swipe Backwards
x
Swipe Forwards
x
Swipe Up & Hold
x
Swipe Down & Hold
x
Swipe Backwards & Hold
x
Swipe Forwards & Hold
x Tap
x Tap & Hold
Low Power, suitable for battery applications
Supply voltage: 1.65V to 3.6V
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Bluetooth Headphones
Bluetooth Speakers
Mechanical Push Button Replacement
Portable Electronics
Wearable Electronics
Copyright © Azoteq (Pty) Ltd 2017.
All Rights Reserved.
Trackpad Module Datasheet
V1.09
Page 1 of 23
March 2021
54mm
48mm
48mm
x
60mm
Trackpad with on chip XY coordinate calculation
1792 x 1792 resolution
170Hz scan rate for gesture recognition
Adjustable Sensitivity
Active high or low output
Proximity wake up from low power
Automatic drift compensation
Gestures mapped to I/O pins for Audio Adjustment
x Swipe Up
48mm
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40mm
Main Features
Azoteq
IQ Switch®
ProxSense® Series
Contents
1
HARDWARE DESCRIPTION .................................................................................................................... 3
2
TPR40 ................................................................................................................................................... 7
3
TPR40-V ............................................................................................................................................... 8
4
TPR48 ................................................................................................................................................... 9
5
TPR54 ................................................................................................................................................. 10
6
TPE48 ................................................................................................................................................. 11
7
TPE60 ................................................................................................................................................. 12
8
TPS48 ................................................................................................................................................. 13
9
GESTURE IMPLEMENTATION............................................................................................................... 15
10
SPECIFICATIONS ................................................................................................................................. 19
11
ORDERING INFORMATION .................................................................................................................. 20
Datasheet Revision History
Version
Description
Date
1.00
Preliminary Draft
May 2015
1.01
First Release
June 2015
1.02
Updated ordering Information for Value Line
August 2015
1.03
Update Illustrations
Sept 2015
1.04
Update TPR54 design
Nov 2015
1.05
Add TPR40-V
Nov 2016
1.06
Update output tables
Jan 2017
1.07
Output type correction
April 2017
1.08
Update available version in order info
May 2017
1.09
Template update
March 2021
Copyright © Azoteq (Pty) Ltd 2017.
All Rights Reserved.
Trackpad Module Datasheet
V1.09
Page 2 of 23
March 2021
Azoteq
IQ Switch®
ProxSense® Series
1 Hardware Description
All trackpad modules are available on RoHS2 and REACH compliant FR4 PCB material. The module
PCBs are 1mm thick and have an OSP finish, with tinned pads for the user required solder points.
The standard modules are not Halogen free. The trackpad sensing is done with IQS572, connected
to an 8x8 diamond grid for 1792 pixel resolution in the X and Y directions. The modules are supplied
with 3M double sided adhesive tape (PSA). Only certain modules include a connector, please consult
Section 11.
Table 1-1: Summary of Trackpad Offerings
Module Name
Shape
Size
TPR40
Round
Ø40mm
TPR48
Round
Ø48mm
TPR54
Round
Ø54mm
TPE60
Ellipse
60mm x 46mm
TPE48
Ellipse
48mm x 38mm
TPS48
Rectangle
48mm x 38mm
The TPR40 is also available in the Value Line series. The value line uses the IQS525 in place of the
IQS572, with maximum resolution of 1024 x 1024.
1.1 PCB Specification
-
Material: 2-layer, FR4 PCB (non-HF material)
&RQGXFWRUȝP&RSSHUR]&X
Finish: OSP (tinned)
Size: Module Specific
PCB Final Thickness = 1.0mm +/- 10%
Outline: Precision DIE-CUT Profile
Copyright © Azoteq (Pty) Ltd 2017.
All Rights Reserved.
Trackpad Module Datasheet
V1.09
Page 3 of 23
March 2021
IQ Switch®
ProxSense® Series
Azoteq
1.2 Module Orientation
All the modules have a cut in the PCB indicating the top of the module, which could also be used to
align the module on the application overlay. This Notch can be seen in Figure 1.1
Tip: An overlay must be secured to
the module with double sided
adhesive tape without air gaps for
performance evaluation.
Figure 1-1: Top Notch Illustrating Module Orientation.
1.3 Adhesive (PSA) Specification
All 6 modules offered are supplied with double sided adhesive applied on the trackpad for ease of
integration. The adhesive is kept with the liner kept in place, with a pull tab for easy removal without
tearing:
-
Type: 3M 468 200MP
Thickness = 0.13mm
Liner = Polycoated Kraft Paper
Liner w/ Pull-Tab (No glue on Pull-Tab)
Adhesive sized to fit entire tracking area (module specific)
1.4 Total Thickness
The total thickness given in Figure 1.2 does not include the protective liner on the adhesive. The
liner needs to be removed when the module is assembled into the application. The highest part
(thickest part of the module) of the assembly is a 0603 capacitor – C2.
Copyright © Azoteq (Pty) Ltd 2017.
All Rights Reserved.
Trackpad Module Datasheet
V1.09
Page 4 of 23
March 2021
Azoteq
IQ Switch®
ProxSense® Series
2.03mm ± 10%
Components
Adhesive
PCB
Figure 1-2: Maximum Module Thickness.
1.5 Compatible Overlay Thickness
The compatible overlay thicknesses are shown in Table 1.2 below. The modules have a solder link,
S1, which can select one of two sensitivity settings tuned for different overlay thicknesses.
Table 1-2: Module Overlay Compatibility .
Solder link S1
Overlay Range
Open
1mm – 2mm
Closed
2mm – 3mm
For non-uniform overlays, the maximum curve in the overlay is limited to a 1mm height difference
over the trackpad surface as shown in Figure 1.3.
Maximum Height variation of 1mm
Overlay
Adhesive
PCB
PCB
Figure 1-3: Maximum height variation in the overlay.
Copyright © Azoteq (Pty) Ltd 2017.
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Trackpad Module Datasheet
V1.09
Page 5 of 23
March 2021
IQ Switch®
ProxSense® Series
Azoteq
1.6 Output Level
The active level of the output pins can be changed from active high (default) to active low. Connect
a solder link on S2 to select active low. The active level is applicable to all 5 output pins.
Table 1-3: Module Output Pin Level.
Solder link S2
Output Level
Open
Active High
Closed
Active Low
1.7 Finger Sizes
The modules have the same number of rows and columns which results in different trackpad pitches.
The smallest finger sizes for valid gestures on each module are shown in Table 1.4 below.
Table 1-4: Suggested Minimum Finger Sizes
Module
Min Finger Diameter
TPR40
6.7 mm
TPR40-V
10.4mm
TPR48
8.0 mm
TPR54
9.0 mm
TPE60
9.0 mm
TPE48
7.2 mm
TPS48
7.2 mm
Copyright © Azoteq (Pty) Ltd 2017.
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Trackpad Module Datasheet
V1.09
Page 6 of 23
March 2021
Azoteq
IQ Switch®
ProxSense® Series
2 TPR40
40.00mm
±0.2mm
39.74mm
±0.2mm
Figure 2-1 : TPR40 – Front and Back View.
2.1 Outputs of TPR40
The pin mapping for the TPR40 gesture outputs are shown in below.
Table 2-1-1: Module Gesture Output Pin Mapping.
Gesture
Output Pin
Output Type
Typical Feature
Swipe Upward
I/O_1
Single Pulse
Volume Increase
Swipe Upward & Hold
I/O_1
Continuous Pulse
Continuous Volume Increase
Swipe Downward
I/O_3
Single Pulse
Volume Decrease
Swipe Downward & Hold
I/O_3
Continuous Pulse
Continuous Volume Decrease
Swipe Forward
I/O_5
Single Pulse
Skip / Next Track
Swipe Forward & Hold
I/O_5
Continuous Pulse
Fast Forward
Swipe Backward
I/O_4
Single Pulse
Skip / Previous Track
Swipe Backward & Hold
I/O_4
Continuous Pulse
Reverse/Rewind
Tap
I/O_2
Single Pulse
Play/Pause (Call Answer)
Tap & Hold
I/O_2
Continuous Pulse
Start/STOP
Copyright © Azoteq (Pty) Ltd 2017.
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Trackpad Module Datasheet
V1.09
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March 2021
Azoteq
IQ Switch®
ProxSense® Series
3 TPR40-V
Figure 3-1: TPR40-V Front and Back View.
3.1 Outputs of TPR40-V
The pin mapping for the TPR40-V gesture outputs are shown in below.
Table 3-1: Module Gesture Output Pin Mapping.
Gesture
Output Pin
Output Type
Typical Feature
Swipe Upward
I/O_3
Single Pulse
Volume Increase
Swipe Upward & Hold
I/O_3
Continuous Pulse
Continuous Volume Increase
Swipe Downward
I/O_1
Single Pulse
Volume Decrease
Swipe Downward & Hold
I/O_1
Continuous Pulse
Continuous Volume Decrease
Swipe Forward
I/O_5
Single Pulse
Skip / Next Track
Swipe Forward & Hold
I/O_5
Continuous Pulse
Fast Forward
Swipe Backward
I/O_4
Single Pulse
Skip / Previous Track
Swipe Backward & Hold
I/O_4
Continuous Pulse
Reverse/Rewind
Tap
I/O_2
Single Pulse
Play/Pause (Call Answer)
Tap & Hold
I/O_2
Continuous Pulse
Start/STOP
Copyright © Azoteq (Pty) Ltd 2017.
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Trackpad Module Datasheet
V1.09
Page 8 of 23
March 2021
IQ Switch®
ProxSense® Series
Azoteq
4 TPR48
Figure 4-1 TPR48 – Front and Back View.:
4.1 Outputs of TPR48
The pin mapping for the TR48 gesture outputs are shown in below.
Table 4-1: Module Gesture Output Pin Mapping.
Gesture
Output Pin
Output Type
Typical Feature
Swipe Upward
I/O_1
Single Pulse
Volume Increase
Swipe Upward & Hold
I/O_1
Continuous Pulse
Continuous Volume Increase
Swipe Downward
I/O_3
Single Pulse
Volume Decrease
Swipe Downward & Hold
I/O_3
Continuous Pulse
Continuous Volume Decrease
Swipe Forward
I/O_5
Single Pulse
Skip / Next Track
Swipe Forward & Hold
I/O_5
Continuous Pulse
Fast Forward
Swipe Backward
I/O_4
Single Pulse
Skip / Previous Track
Swipe Backward & Hold
I/O_4
Continuous Pulse
Reverse/Rewind
Tap
I/O_2
Single Pulse
Play/Pause (Call Answer)
Tap & Hold
I/O_2
Continuous Pulse
Start/STOP
Copyright © Azoteq (Pty) Ltd 2017.
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Trackpad Module Datasheet
V1.09
Page 9 of 23
March 2021
IQ Switch®
ProxSense® Series
Azoteq
5 TPR54
54.00mm
±0.2mm
53.77mm
±0.2mm
Figure 5-1: TPR54 – Front and Back View.
5.1 Outputs of TPR54
The pin mapping for the TPR54 gesture outputs are shown in below.
Table 5-1: Module Gesture Output Pin Mapping.
Gesture
Output Pin
Output Type
Typical Feature
Swipe Upward
I/O_1
Single Pulse
Volume Increase
Swipe Upward & Hold
I/O_1
Continuous Pulse
Continuous Volume Increase
Swipe Downward
I/O_3
Single Pulse
Volume Decrease
Swipe Downward & Hold
I/O_3
Continuous Pulse
Continuous Volume Decrease
Swipe Forward
I/O_5
Single Pulse
Skip / Next Track
Swipe Forward & Hold
I/O_5
Continuous Pulse
Fast Forward
Swipe Backward
I/O_4
Single Pulse
Skip / Previous Track
Swipe Backward & Hold
I/O_4
Continuous Pulse
Reverse/Rewind
Tap
I/O_2
Single Pulse
Play/Pause (Call Answer)
Tap & Hold
I/O_2
Continuous Pulse
Start/STOP
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Trackpad Module Datasheet
V1.09
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March 2021
Azoteq
IQ Switch®
ProxSense® Series
Table 5-2: FPC connector pin out.
J1
Connection
1
NRST
2
RDY
3
GND
4
VDDHI
5
SCL
6
SDA
6 TPE48
Figure 6-1: TPE48 – Front and Back View.
6.1 Outputs of TPE48
The pin mapping for the TPE48 gesture outputs are shown in below.
Table 6-1: Module Gesture Output Pin Mapping.
Gesture
Output Pin
Output Type
Typical Feature
Swipe Upward
I/O_1
Single Pulse
Volume Increase
Swipe Upward & Hold
I/O_1
Continuous Pulse
Continuous Volume Increase
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Trackpad Module Datasheet
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IQ Switch®
ProxSense® Series
Azoteq
Swipe Downward
I/O_3
Single Pulse
Volume Decrease
Swipe Downward & Hold
I/O_3
Continuous Pulse
Continuous Volume Decrease
Swipe Forward
I/O_5
Single Pulse
Skip / Next Track
Swipe Forward & Hold
I/O_5
Continuous Pulse
Fast Forward
Swipe Backward
I/O_4
Single Pulse
Skip / Previous Track
Swipe Backward & Hold
I/O_4
Continuous Pulse
Reverse/Rewind
Tap
I/O_2
Single Pulse
Play/Pause (Call Answer)
Tap & Hold
I/O_2
Continuous Pulse
Start/STOP
7 TPE60
Figure 7-1: TPE60 – Front and Back View.
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Trackpad Module Datasheet
V1.09
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IQ Switch®
ProxSense® Series
Azoteq
7.1 Outputs of TPE60
The pin mapping for the TPE60 gesture outputs are shown in below.
Table 7-1: Module Gesture Output Pin Mapping.
Gesture
Output Pin
Output Type
Typical Feature
Swipe Upward
I/O_1
Single Pulse
Volume Increase
Swipe Upward & Hold
I/O_1
Continuous Pulse
Continuous Volume Increase
Swipe Downward
I/O_3
Single Pulse
Volume Decrease
Swipe Downward & Hold
I/O_3
Continuous Pulse
Continuous Volume Decrease
Swipe Forward
I/O_5
Single Pulse
Skip / Next Track
Swipe Forward & Hold
I/O_5
Continuous Pulse
Fast Forward
Swipe Backward
I/O_4
Single Pulse
Skip / Previous Track
Swipe Backward & Hold
I/O_4
Continuous Pulse
Reverse/Rewind
Tap
I/O_2
Single Pulse
Play/Pause (Call Answer)
Tap & Hold
I/O_2
Continuous Pulse
Start/STOP
8 TPS48
Figure 8-1: TPS48 – Front and Back View.
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Trackpad Module Datasheet
V1.09
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March 2021
IQ Switch®
ProxSense® Series
Azoteq
8.1 Outputs of TPS48
The pin mapping for the TPS48 gesture outputs are shown in below.
Table 8-1: Module Gesture Output Pin Mapping.
Gesture
Output Pin
Output Type
Typical Feature
Swipe Upward
I/O_1
Single Pulse
Volume Increase
Swipe Upward & Hold
I/O_1
Continuous Pulse
Continuous Volume Increase
Swipe Downward
I/O_3
Single Pulse
Volume Decrease
Swipe Downward & Hold
I/O_3
Continuous Pulse
Continuous Volume Decrease
Swipe Forward
I/O_5
Single Pulse
Skip / Next Track
Swipe Forward & Hold
I/O_5
Continuous Pulse
Fast Forward
Swipe Backward
I/O_4
Single Pulse
Skip / Previous Track
Swipe Backward & Hold
I/O_4
Continuous Pulse
Reverse/Rewind
Tap
I/O_2
Single Pulse
Play/Pause (Call Answer)
Tap & Hold
I/O_2
Continuous Pulse
Start/STOP
Copyright © Azoteq (Pty) Ltd 2017.
All Rights Reserved.
Trackpad Module Datasheet
V1.09
Page 14 of 23
March 2021
Azoteq
IQ Switch®
ProxSense® Series
9 Gesture Implementation
9.1 Swipe Gestures
There are four swipe gestures that can be detected by the trackpad modules, as shown in Figure
9.1 below.
Figure 9-1: Illustrations off the 4 swipe gestures that can be detected by the trackpad modules.
Each time any of the swipe gestures are performed correctly (correct finger action within a 18ms to
1 second window), the corresponding I/O pin of the trackpad will output a single 200ms
(100ms TPR54-P203
> TPR54-P203-S
> TPR48-P201
> TPR48-P201-S
> TPR54-P303
> TPR54-P303-S
> Elliptical Modules:
> TPE48-P201
> TPE48-P201-S
> TPE60-P201
> TPE60-P201-S
> TPE48-P203
> TPE48-P203-S
> TPE60-P203
> TPE60-P203-S
> Square/Rectangular Modules:
> TPS48-P201
> TPS48-P201-S
> TPS48-P203
> TPS48-P203
1
Note: For non-standard versions or version not listed above please contact Azoteq direct.
Copyright © Azoteq (Pty) Ltd 2017.
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Trackpad Module Datasheet
V1.09
Page 22 of 23
March 2021
IQ Switch®
ProxSense® Series
Azoteq
USA
Asia
South Africa
Physical
Address
11940 Jollyville
Suite 120-S
Austin
TX 78750
USA
Room 501A, Block A,
T-Share International Centre,
Taoyuan Road, Nanshan District,
Shenzhen, Guangdong, PRC
1 Bergsig Avenue
Paarl
7646
South Africa
Postal
Address
11940 Jollyville
Suite 120-S
Austin
TX 78750
USA
Room 501A, Block A,
T-Share International Centre,
Taoyuan Road, Nanshan District,
Shenzhen, Guangdong, PRC
PO Box 3534
Paarl
7620
South Africa
Tel
+1 512 538 1995
+86 755 8303 5294
ext 808
+27 21 863 0033
Email
info@azoteq.com
info@azoteq.com
info@azoteq.com
Visit www.azoteq.com
for a list of distributors and worldwide representation.
Patents as listed on www.azoteq.com/patents-trademarks/ may relate to the device or usage of the device.
Azoteq®, Crystal Driver , IQ Switch®, ProxSense®, ProxFusion®, LightSense™, SwipeSwitch™, 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 an “as is” basis only, without any representations
or warranties, express or implied, of any kind, including representations about the suitability of these products or informat ion 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 o r
caused by, without limitation, failure of performance, error, omission, interruption, defect, delay in operation or transmiss ion, 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 o r 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 pr ior notification. For the most up-to-date information
and binding Terms and Conditions please refer to www.azoteq.com.
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All Rights Reserved.
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IQS5xx-B000 Datasheet
Revision 2.1
Page 1 of 1
March 2021