IQS7228A

Azoteq

>

Status:
End of Life

The IQS7228A, known as “The Earbud Chip,” is an 8-channel sensor with ProxFusion® technology, featuring a WLCSP16 package. It includes functions such as automatic tuning, noise filtering, and dual direction trigger indication. The device supports I²C communication and operates on a supply voltage range of 1.8V to 3.6V. Ideal for SAR compliance in mobile devices, wear detection, low power wake-up buttons/proximity, and Hall-effect dock detection, it provides customizable user interfaces with programmable memory for simplified integration.

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Claim Free Samples

Azoteq is a fabless semiconductor company and world leader incapacitive proximity and touch solutions for user interfaces. Their new ProxFusion product line gathers various sensor technologies in one chipset including ambient ligh sensing, IR, inductive and Hall Effect.

Characteristics

Additional information

Controller IC

IQS7228A
Brand

Package

WLCSP16
Capacitive Prox/Touch

√
Hall Rotation

√
Interface

I²C
Statut

  • Automatic reference channel UIs for temperature and mechanical effects. Assign a reference channel to any single or group of sensing channels
  • Options for reduced RF emissions for integration in RF sensitive environments (wide range of charge transfer frequency options)
  • I2C Interface with RDY interrupt line
  • Event mode (including reduced interrupt options such as hysteresis)
  • Assign a touch flag state of any channel to a dedicated GPIO (default: active low, open drain)
  • Supply Voltage: 1.8V (-5%) to 3.6V
  • Small package:
    • WLCSP16 (1.62 x 1.62 x 0.5 mm)

  • Highly flexible 8 channel ProxFusion® device
  • Each channel can be configured with connections to up to 8 external connections OR one internal option
  • 8 external sensor pad connections:
    • Self/Mutual capacitive sensors
    • Self/Mutual inductive sensors
    • Dedicated reference sensor mode for environmental / mechanically sensitive designs
  • Internal sensor option:
    • Hall-sensor
  • Serial scanning (Single ProxFusion® engine) – up to 8 time-slots
  • Built-in basic functions:
    • Automatic tuning
    • Noise filtering
    • Differential measurements (reference channels)
    • Debounce & hysteresis
    • Dual direction trigger indication
  • Built-in user-interface options:
    • Slider (up to 8 elements with coordinate output, flick/swipe/tap detection)
  • Wide Range of Capacitance Detection (Range of 0 to 400 pF)
  • Multiple custom signal level event triggers (e.g. proximity, touch, deep touch)

  • SAR compliance in mobile devices
  • Wear detection
  • Low power wake-up buttons / proximity
  • Hall-effect dock detection

IQS7228A

Azoteq

>

Status:
End of Life

Additional information

Controller IC

IQS7228A
Brand

Package

WLCSP16
Capacitive Prox/Touch

√
Hall Rotation

√
Interface

I²C
Statut

Ask us about this product
Claim Free Samples

The IQS7228A, known as “The Earbud Chip,” is an 8-channel sensor with ProxFusion® technology, featuring a WLCSP16 package. It includes functions such as automatic tuning, noise filtering, and dual direction trigger indication. The device supports I²C communication and operates on a supply voltage range of 1.8V to 3.6V. Ideal for SAR compliance in mobile devices, wear detection, low power wake-up buttons/proximity, and Hall-effect dock detection, it provides customizable user interfaces with programmable memory for simplified integration.

  • Automatic reference channel UIs for temperature and mechanical effects. Assign a reference channel to any single or group of sensing channels
  • Options for reduced RF emissions for integration in RF sensitive environments (wide range of charge transfer frequency options)
  • I2C Interface with RDY interrupt line
  • Event mode (including reduced interrupt options such as hysteresis)
  • Assign a touch flag state of any channel to a dedicated GPIO (default: active low, open drain)
  • Supply Voltage: 1.8V (-5%) to 3.6V
  • Small package:
    • WLCSP16 (1.62 x 1.62 x 0.5 mm)

  • Highly flexible 8 channel ProxFusion® device
  • Each channel can be configured with connections to up to 8 external connections OR one internal option
  • 8 external sensor pad connections:
    • Self/Mutual capacitive sensors
    • Self/Mutual inductive sensors
    • Dedicated reference sensor mode for environmental / mechanically sensitive designs
  • Internal sensor option:
    • Hall-sensor
  • Serial scanning (Single ProxFusion® engine) – up to 8 time-slots
  • Built-in basic functions:
    • Automatic tuning
    • Noise filtering
    • Differential measurements (reference channels)
    • Debounce & hysteresis
    • Dual direction trigger indication
  • Built-in user-interface options:
    • Slider (up to 8 elements with coordinate output, flick/swipe/tap detection)
  • Wide Range of Capacitance Detection (Range of 0 to 400 pF)
  • Multiple custom signal level event triggers (e.g. proximity, touch, deep touch)

  • SAR compliance in mobile devices
  • Wear detection
  • Low power wake-up buttons / proximity
  • Hall-effect dock detection

Azoteq is a fabless semiconductor company and world leader incapacitive proximity and touch solutions for user interfaces. Their new ProxFusion product line gathers various sensor technologies in one chipset including ambient ligh sensing, IR, inductive and Hall Effect.

Characteristics

Additional information

Controller IC

IQS7228A
Brand

Package

WLCSP16
Capacitive Prox/Touch

√
Hall Rotation

√
Interface

I²C
Statut

IQS7228A

Azoteq

>

Status:
End of Life

The IQS7228A, known as “The Earbud Chip,” is an 8-channel sensor with ProxFusion® technology, featuring a WLCSP16 package. It includes functions such as automatic tuning, noise filtering, and dual direction trigger indication. The device supports I²C communication and operates on a supply voltage range of 1.8V to 3.6V. Ideal for SAR compliance in mobile devices, wear detection, low power wake-up buttons/proximity, and Hall-effect dock detection, it provides customizable user interfaces with programmable memory for simplified integration.

Ask us about this product
Claim Free Samples
  • Automatic reference channel UIs for temperature and mechanical effects. Assign a reference channel to any single or group of sensing channels
  • Options for reduced RF emissions for integration in RF sensitive environments (wide range of charge transfer frequency options)
  • I2C Interface with RDY interrupt line
  • Event mode (including reduced interrupt options such as hysteresis)
  • Assign a touch flag state of any channel to a dedicated GPIO (default: active low, open drain)
  • Supply Voltage: 1.8V (-5%) to 3.6V
  • Small package:
    • WLCSP16 (1.62 x 1.62 x 0.5 mm)

  • Highly flexible 8 channel ProxFusion® device
  • Each channel can be configured with connections to up to 8 external connections OR one internal option
  • 8 external sensor pad connections:
    • Self/Mutual capacitive sensors
    • Self/Mutual inductive sensors
    • Dedicated reference sensor mode for environmental / mechanically sensitive designs
  • Internal sensor option:
    • Hall-sensor
  • Serial scanning (Single ProxFusion® engine) – up to 8 time-slots
  • Built-in basic functions:
    • Automatic tuning
    • Noise filtering
    • Differential measurements (reference channels)
    • Debounce & hysteresis
    • Dual direction trigger indication
  • Built-in user-interface options:
    • Slider (up to 8 elements with coordinate output, flick/swipe/tap detection)
  • Wide Range of Capacitance Detection (Range of 0 to 400 pF)
  • Multiple custom signal level event triggers (e.g. proximity, touch, deep touch)

  • SAR compliance in mobile devices
  • Wear detection
  • Low power wake-up buttons / proximity
  • Hall-effect dock detection

Azoteq is a fabless semiconductor company and world leader incapacitive proximity and touch solutions for user interfaces. Their new ProxFusion product line gathers various sensor technologies in one chipset including ambient ligh sensing, IR, inductive and Hall Effect.

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SAS SELTECH
2, Allée des Cerisiers
F – 94042 Créteil FRANCE

Tel EU : +33 1 48 92 90 02
Tel NA : +1 (919) 481 6896

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SELTECH is an international solution provider with deep expertise in acoustics and sensors. We offer innovative solutions to our customers’ challenges, from design to production.

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IQS7228A

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