Azoteq high sensitivity allows them to provide unique features for headphones and earphones Proximity detection, several fingers gestures, snap key combined with trackpad and high performance on small sizes are features that are feasible with Azoteq technology

1. 2016/3/23
Contact Julien Jourdan for more information
Capacitive sensing solutions
for headphones

2. © 2016 SAS SELTECH - All rights reserved.
Wear and play
page2
 Features
– Turns the headphone ON when on head
– Turns it OFF when on neck
 Advantages
– Makes usage easier
– No need for ON/OFF button
 Sensors
– IQS211 – single channel chipset
NO MUSIC
MUSIC ON
Youtube video

3. © 2016 SAS SELTECH - All rights reserved.
Trackpad possibilities
page3
 Standard trackpad
 Features
– Provide simple gestures : swipes, tap, …
(typically UP | DOWN | LEFT | RIGHT | TAP)
 Advantages
– Improved UI – control done on the headphone
– Aesthetics / Modern Design
– Easiness of assembly and integration
– Several sizes available
 Solutions
– Round, elliptic and rectangle modules
available Youtube video

4. © 2016 SAS SELTECH - All rights reserved.
Trackpad possibilities
page4
 Trackpad with holes
can be used as user interface to place on open
headphone cup
 Features
– Provide simple gestures : swipes, tap, …
(typically UP | DOWN | LEFT | RIGHT | TAP)
 Advantages
– Improved UI – control done on the headphone
– Aesthetics / Modern Design
– Easiness of assembly and integration
 Sensors
– IQS360 & IQS525/572/550 – trackpad chipset Youtube video

5. © 2016 SAS SELTECH - All rights reserved.
Trackpad possibilities
page5
 Various gestures can be implemented
 Pinch in and out
 Circular gestures
 Two finger gestures
 …

6. © 2016 SAS SELTECH - All rights reserved.
Trackpad possibilities
page6
 Mechanical key for critical function
can be used together on trackpad area
 Features
– Extra feature on trackpad to handle critical function :
Call pick up / reject
 Advantages
– Using Azoteq patented technology
 Sensors
– Included in IQS360 & IQS525/572/550 – trackpad chipset
Youtube video

7. © 2016 SAS SELTECH - All rights reserved.
 Stationary wheel
can be used around headphone cup for rotation movement
without any moving part
 Features
– Rotary movement around the headphone cup edges
 Advantages
– Improved UI – control done on the headphone
– Aesthetics / Modern Design
 Sensors
– IQS525/572/550 – trackpad chipsets
Stationary wheel
page7
Youtube video

8. © 2016 SAS SELTECH - All rights reserved.
Swipes for simple gestures
page8
 Features
– Providing simple gestures on headphone
– Swipe in Any Direction
– Tap, Double Tap, Tap & Hold
– Snap
 Advantages
– Improved UI – control done on the headphone
– Aesthetics / Modern Design
– Most cost effective than trackpad solution
 Sensors
– IQS263 – 3 channel chipset

9. © 2016 SAS SELTECH - All rights reserved.
Earphones
page9
 Features
– Wear Detection
– Bi-directional Swipe
– Tap, Double Tap, Tap & Hold
– ON/OFF for heart rate sensor
 Advantages
– Robust solution
– Modern Design
– Simpler construction and assembly
– Waterproof
– Power saving
 Sensors
– IQS229, IQS211 – Movement (Wear Detection)
– IQS211, IQS227AS – Single key
– IQS213, IQS263 – Swipe

10. © 2016 SAS SELTECH - All rights reserved.
Headphone IC Package
and Power Details
IC Description Package Option
Dimensions
[mm]
Picture
IQS211
1 channel
Touch, Proximity and
Movement detection
TSOT23-6 3 x 3 x 1
IQS263
3 channels
Slider with movement
sensor and tap recognition
MSOP-10/DFN10 3 x 5 / 3 x 3
IQS360
12 channels
3x4 channel projected
trackpad / touch screen
controller
QFR32 5 x 5 x 0.9
IQS525/
572
25 / 72 channels
5x5 (or 4x6) / 9x8 channel
projected trackpad / touch
screen controller
QFN28 4 x 4 x 0.6

11. © 2016 SAS SELTECH - All rights reserved.
Headphone IC Package
and Power Details
IC Description Supply
Fast Response
Time (~9ms)
LP with Proximity
Wake up (256ms)
Standby
IQS211
1 channel
Touch, Proximity and
Movement detection
1.8-3.6V 77µA 3.5µA N/A
IQS263
3 channels
Slider with movement sensor
and tap recognition
1.8-3.6V 180µA 3µA N/A
IQS360
12 channels
3x4 channel projected
trackpad / touch screen
controller
1.8-3.6V 530µA 8µA <2µA
IQS525/
572
25 / 72 channels
5x5 (or 4x6) / 9x8 channel
projected trackpad / touch
screen controller
1.65-1.8V 1.85mA 15µA <2µA

12. Julien Jourdan
Product Manager
2 Allée des Cerisiers
94024 Creteil France
☎: +33 1 48 92 90 02
✉: julien.jourdan@seltech-international.com
Contact