CY8C20110-SX2I

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The CY8C20110-SX2I is a low-power touch sensing integrated circuit. It enables applications such as capacitive buttons, capacitive sliding wheels and simplified proximity sensing. This application field and working principle can be categorized under Interface – Sensor, Capacitive Touch.

The working principle of the CY8C20110-SX2I is based on a switched-capacitor technique. It measures capacitance change versus time periods. It has four capacitive input channels, where each channel is comprised of a sensor pair, each pair having a guard electrode and a measuring electrode. The guard electrode redirects adjacent noise, allowing the measuring electrode to detect a true touch every time.

The CY8C20110-SX2I is great for applications that require low power consumption, such as mobile phones and portable devices. It converts capacitance changes into velocity change and stores the data internally. It offers a range of sensing performances that can provide cost-effective solutions for consumer-grade applications.

The CY8C20110-SX2I supports either self- or mutual-capacitance methods. Self-capacitance mode detects increases or decreases in capacitance. Mutual-capacitance mode detects changes in the ratio of two signals. This method is mainly used for proximity sensing applications such as wheel operations on MP3 players and mobile phones.

The detection is also very accurate and fast. The maximum reliable touch detection time is less than 15 us and its high resolution allows stable sensing of even small digital differences. The device also has an auto calibration feature which allows it to continuously detect the threshold level of changes.

The CY8C20110-SX2I uses an interrupted burst cycle which can be used to extend battery life. It works by reducing the sensing cycle when no changes are detected, allowing the system to enter a low power mode. This reduces the power consumption significantly when under standby mode or when no changes to measured capacitance is detected. The device can also be used in sleep modes or can be used to detect changes in power supply voltage.

Overall, the CY8C20110-SX2I is an ideal solution for applications that require accurate and fast touch sensing. It is low power which makes it perfect for battery operated devices and its wide range of sensing performances make it suitable for consumer-grade applications. Its auto calibration feature ensures that it always has the correct threshold level of capacitance changes, and its interrupted burst cycle extends battery life.

The specific data is subject to PDF, and the above content is for reference