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AN92239 - Proximity Sensing with CapSense® | 赛普拉斯半导体

AN92239 - Proximity Sensing with CapSense®

2021 年 10 月 26 日


A proximity sensor detects the presence of a nearby object without any physical contact. Cypress’s CapSense devices support self-capacitance based proximity sensing and can achieve up to a 30-cm proximity-sensing distance. This application note explains how to:

  • Design a proximity sensor and tune the CSD parameters to achieve large proximity-sensing distances
  • Tune the CSD parameters for a proximity sensor to achieve liquid tolerance
  • Implement proximity-based gesture detection
  • Implement the wake-on-approach feature to reduce the power consumption of the device


Capsense sensor distance image

Dear valued customer,

Thank you for choosing our products. They come with all the know-how and passion that our engineers have put into it. As you probably already know, Cypress is now Infineon. This is a major step for our company, but also for the good of you. 

Reliability and business continuity are of utmost importance for us. Hence, we remain fully committed to honoring existing customer and distributor relationships. This includes offering the legacy Cypress product portfolio. We thank you very much for your trusting support.

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