IQS128EV01-S

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The IQS128EV01-S is a single-chip evaluation board for capacitive sensors. It was designed to enable developers to create highly reliable touch-sensitive components in various applications.

The board features a single-chip solution with a capacitive sensing module comprised of two capacitive sensing channels, a touch control unit, and a digital and analog interface. Each channel is integrated with two capacitive sensing electrodes for detecting touch. The touch control unit is responsible for generating an output signal when an object is detected at the specified channel. Additionally, the board features a digital output interface for communication with the application processor.

The IQS128EV01-S is suitable for use in a variety of consumer applications such as tablets, digital cameras, and gaming consoles. It is also ideal for use in devices with input interfaces, such as refrigerators, washing machines, and air conditioners. This evaluation board also allows for the integration of various types of sensors, including pressure sensors, accelerometers, and gyroscopes.

One of the key advantages of the IQS128EV01-S is its compact size, making it suitable for implementation in small form-factor devices. The board also offers low power consumption making it well suited for battery-powered applications. Additionally, it is able to support up to four channels so it can be used for larger touchscreens. Furthermore, it can detect multi-touch and handle complex touch algorithms.

The working principle of the IQS128EV01-S is based on capacitive sensing. As an object is placed onto the sensing channel, an electrical current from the electrodes is electrically coupled with the object, referred to as capacitive coupling. When the capacitive coupling occurs, this current is measured, and the system\'s capacitive sensing algorithm is used to distinguish between an object and a non-object.

In addition to providing capacitive sensing, the IQS128EV01-S also features an integrated touch control unit for controlling the touch-sensing interface. This control unit includes a two-stage logic circuit that performs detection and signal filtering for each of the sensing channels. Once the touch-sensing interface has been activated, the user\'s finger or other object can be detected and the touch event is sent to the digital interface. The digital interface then sends the event to the application processor for further processing.

The IQS128EV01-S evaluation board is a beneficial tool for designers looking to develop capacitive sensors for their applications. With its single-chip solution and integration of multiple sensing channels, developers can develop highly reliable touch solutions for a variety of applications. Additionally, its compact size and low power consumption make it well suited for battery-powered devices. Finally, its integrated touch control unit offers two-stage logic, multi-touch support, and signal filtering to ensure accurate sensing.

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