TS12 has a sensitivity and internal protection circuit 9 options to make external components, such as the CS pin serial or parallel resistor capacitor is not necessary. Touch line parallel parasitic capacitance CS pin, the touchpad and neighbors GND or other modes may affect sensitivity. When greater sensitivity will drop parallel parasitic capacitance CS pin. CS pin parallel capacitor (CS1? S4) in the case of the sensitivity of the details of the mediation is useful requirements, such as the difference between the complementary channel for sensitivity. Same as above parallel parasitic capacitance, when the parallel capacitor (CS1? S4) is a large value, for lowering sensitivity. In 50pF capacitance capacitors can be used as a meditation sensitivity and usually a few pF. RS, CS serial connection resistance labels can also be used in order to avoid adverse external surges and ESD function. (This may be optional.) From 200Ω to 1kΩ proposal for RS. Please refer to the following number of applications CS pin. Please contact phone specific product parameters with us. Thank you!