The high-performance multi-channel inductive sensing chip IQS9320 creates a brand-new depth of pressure perception and linearity
Author: Azoteq, China
In today's intelligent era, the interactive experience of electronic devices is becoming increasingly important and has become one of the key elements for system products to attract users. As a key component for achieving precise interaction, the performance of inductive sensor chips directly affects the smoothness and accuracy of user operations. The IQS9320 ProxFusion® chip is an innovative chip product that performs exceptionally well in the field of multi-channel inductive sensing control. It was launched by Azoteq and is meticulously designed for a wide range of applications, including mechanical keyboards, waterproof keys, remote controls, and game controllers. Due to its significant advantages in linearity and precision, the IQS9320 has been widely used in products such as keyboards since its launch.
The IQS9320 ProxFusion® chip is a flexible multi-channel inductive sensor device. It supports each device to have up to 20 sensing sensors and can be cascented into a larger sensing array through multiple devices, thus providing a benchmark hardware foundation for complex human-machine press interaction requirements and offering a vast space for innovation in the design of the next generation of smart devices. Consumers can enjoy an excellent user experience from it.
This chip features adjustable trigger points that can be flexibly set according to actual usage scenarios to adapt to the operation habits and device requirements of different users. Its analog data streaming function and high reporting rate ensure the rapid and accurate transmission of data, providing users with a smooth operation experience. In addition, the TriggerMax™ UI integrated in this device enables dynamic triggering based on the distance at which the key is pressed or released, further enhancing the intelligence and response speed of the interaction.
· Sensor flexibility and optimization: This chip features an automatic sensor tuning function, which can achieve the best sensitivity and ensure stable operation in various environments. The internal voltage regulator and on-chip noise filtering function further enhance the stability and anti-interference ability of the sensor. Meanwhile, the chip features excellent RF immunity, ensuring normal operation even in complex electromagnetic environments.
· Diverse communication and interfaces: The IQS9320 adopts an I²C communication interface and supports up to Fast-Mode Plus (1 MHz), ensuring the efficiency of data transmission. The selectable I²C address enables multiple chips to be flexibly configured in the same system. The analog channel data streaming function provides convenience for applications that require fine data processing. In addition, the multi-device GPIO interface and the multi-device synchronous sampling function enable this chip to be easily integrated into complex systems, achieving multi-device collaborative operation.
· Environmental adaptability and packaging: The chip has an environmental tracking function and can adapt to different usage environments. It adopts a QFN52 (6×6× 0.75mm) - 0.4mm pitch package, with a compact size, making it suitable for equipment with high space requirements. The operating voltage range is 2.2V to 3.5V, and the operating temperature range is -40°C to +85°C, featuring wide applicability and stability.
· Waterproof button: The stability and anti-interference ability of this chip can ensure normal operation in a humid environment.
· Remote control and game controller: The high sampling rate and dynamic trigger function make the operation response more sensitive, providing users with an immersive usage experience.
The IQS9320 ProxFusion® chip, with its flexible design, rich features and wide application adaptability, has become an outstanding product in the field of multi-channel inductive sensing, providing strong support for enhancing the interaction experience of electronic devices. Whether in traditional keyboard applications or in emerging smart devices, the IQS9320 is expected to play a significant role in promoting the further development of inductive sensing technology.
Keyboard products equipped with IQS9320 include:
AESCOA67/A83 inductive shaft type magnetic shaft keyboard
Black Shark three-mode magnetic axis keyboard
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