User Module Datasheet: CAPSENSE® SUCCESSIVE APPROXIMATION DATASHEET, CSA V 1.50 (CY8C20X66, CY8C20X36, CY8C20336AN, CY8C20436AN, CY8C20636AN, CY8C20XX6AS, CY8C20X46, CY8C20X96)
Last Updated: 08/02/2012
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Version: 1.50
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Features and Overview
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Scan 1 to 28 capacitive sensors
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Scan capacitive sliders with 2 to 28 elements
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Slider physical resolution doubling using diplexing
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Slider interpolated resolution up to 1 part in 65535
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Generate touch-pad using multiple slider sensors
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Adjustable sensor sensitivity, detection threshold and sampling rate
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Guided sensor/pin assignments using the CSA Wizard
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Integrated baseline update algorithm for handling temperature changes
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Compensate for environmental and physical sensor variations
The CapSense® Successive Approximation (CSA) User Module implements an array of capacitive touch sensors using switched capacitor circuitry, an analog multiplexer, digital counting functions, and high level software routines to compensate for environmental and physical sensor variations. The sensor array can consist of combinations of independent sensors, sliding sensors, and touchpads implemented as a pair of orthogonal sliding sensors. High level software routines accommodate slider diplexing. Slider diplexing allows a single pin to measure two electrical sensors in two different physical locations. Diplexing provides resolution enhancement of the slider without the cost of an additional IO.
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Spec No: 001-58487;
Sunset Owner: DHA;
Secondary Owner: TBEN;
Sunset Date: 06/14/11
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