User Module Datasheet: AUTOTUNING CAPSENSE® SIGMA-DELTA DATASHEET, CSDAUTO V 1.0 (CY8C20X66, CY8C20X36, CY8C20336AN, CY8C20436AN, CY8C20636AN, CY8C20X46, CY8C20X96, CY8C20XX6AS, CY7C645XX, CY7C643/4/5XX, CY7C60424, CY7C6053X, CYONS2110, CYONS21L1T, CYONSFN2162)
Last Updated: 08/02/2012
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Version: 1.0
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Features and Overview
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AutoTuning algorithms optimize the operational parameters at runtime based on the parasitic capacitance of each sensor.
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Scans 1 to 36 capacitive sensors.
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Capable of detecting 0.1 pF touch with parasitic sensor capacitance (Cp) up to 50 pF as long as layout guidelines of are followed.
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Sensing possible through up to a 15 mm glass overlay.
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High immunity to AC mains noise, other EMI, and power supply voltage changes.
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Supports capacitive sensors configured as independent buttons, proximity sensors and/or as dependent arrays to form sliders. Sliders and proximity sensors not fully supported in this beta version.
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Effective number of slider elements can double the number of dedicated IO pins using diplexing technique.
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Supports slider resolution greater than physical pitch through interpolation.
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Touchpads can be implemented as pairs of interwoven orthogonal sliders.
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Shield electrode provides for reliable operation with high parasitic capacitance and/or in the presence of water film.
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Guided sensor and pin assignments using the CSDAUTO Wizard.
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PC GUI application support for raw data monitoring in real-time.
The CSDAUTO (Autotuning CapSense® using a Sigma-Delta Modulator) User Module provides capacitance sensing using the switched capacitor technique with a sigma-delta modulator to convert the sensor capacitance into digital code.
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Spec No: 001-56927;
Sunset Owner: DHA;
Secondary Owner: TBEN;
Sunset Date: 06/06/11
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