CAP1293
Description
The CAP1293 is a multiple channel capacitive touch sensor controller. It contains three (3) individual capacitive touch sensor inputs with programmable sensitivity for use in touch sensor applications. Each sensor input is calibrated to pensate for system parasitic capacitance and automatically recalibrated to pensate for gradual environmental changes.
In addition, the CAP1293 can be configured to detect proximity on one or more channels with an optional signal guard to reduce noise sensitivity and to isolate the proximity antenna from nearby conductive surfaces that would otherwise attenuate the e-field.
The CAP1293 includes Multiple Pattern Touch recognition that allows the user to select a specific set of buttons to be touched simultaneously. If this pattern is detected, a status bit is set and an interrupt is generated.
The CAP1293 has Active and Standby states, each with its own sensor input configuration controls. The bo state allows a bination of sensor input...
