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QuickSense C8051F990 Low Power MCU with Capacitive Sensing Slide 25
The gain of the CS0 circuit can be adjusted in integer increments from 1x to 8x (8x is the default). High gain gives the best sensitivity and resolution for small capacitors, such as those typically implemented as touch-sensitive PCB features. To measure larger capacitance values, the gain should be lowered accordingly. The bits CS0CG[2:0] in register CS0MD set the gain value.
PTM Published on: 2012-05-16