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User Module Datasheet: SmartSense™, Autotuning CapSense® Sigma-Delta Datasheet SmartSense V 1.60 (CY8C20xx6, CY8C20xx6A, CY8C20xx6AN, CY8C20xx6AS, CY8C20xx6H, CY8C20045, CYRF89435) | Cypress Semiconductor

User Module Datasheet: SmartSense™, Autotuning CapSense® Sigma-Delta Datasheet SmartSense V 1.60 (CY8C20xx6, CY8C20xx6A, CY8C20xx6AN, CY8C20xx6AS, CY8C20xx6H, CY8C20045, CYRF89435)

Last Updated: 
Jun 21, 2013
Version: 
1.60

Features and Overview

  • Implements CapSense® capacitive sensing in the CY8C20xx6A family of PSoC® devices.
  • Auto-tunes configurable system parameters in runtime to account for sensor, IC, and PCB characteristics.
  • Supports up to 36 capacitive sensors and 6 sliders.
  • Supports parasitic sensor capacitance range of 5 pF to 45 pF.
  • Detects touches as low as 0.1 pF, that is, a finger can be detected through up to 15 mm of glass or 5 mm of plastic.
  • High immunity to AC mains noise, other EMI, and power supply noise.
  • Supports capacitive sensors configured as independent buttons and also as dependent arrays to form sliders.
  • Provides diplexing option which allows two slider elements to be assigned per dedicated I/O pin.
  • Supports slider resolution greater than physical pitch through interpolation.
  • Provides shield electrode for reliable operation with high parasitic capacitance and also in the presence of water film.
  • Enables guided sensor and pin assignments using the SmartSense™ Wizard.
  • The CY8C20045 family does not support sliders.
  • The CY8C20065 family does not support sliders.