39.20 Peripheral Touch Controller (PTC) Electrical Specifications

Table 39-26. Peripheral Touch Controller (PTC) AC Electrical Specifications
AC CHARACTERISTICS				Standard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial
Param. No.	Symbol	Characteristics		Min.	Typ.	Max.	Units	Conditions
PTC_1	CLOAD SC⁽¹⁾	Self Capacitance Mode (PTC Channel Y0 - Y31)	Y0	—	—	18	pF	Maximum sensor load capacitance
			Y1 - 25, Y28 - 31	—	—	25	pF
			Y26 - 27	—	—	22	pF
PTC_3	CLOAD MC⁽¹⁾	Mutual Capacitance Mode (PTC Channel Y0 - Y31)		—	—	31	pF
PTC Analog Gain Settings⁽²⁾
PTC_5	PTCGAIN⁽²⁾	Analog Gain Settings	Gain_1	—	1	—	—	—
			Gain_2	—	2.1	—		—
			Gain_4	—	4.3	—		—
			Gain_8	—	9.9	—		—
Note: Maximum capacitive load that the PTC circuitry can compensate for each channel. Analog Gain is a parameter of the Touch Library. For additional information, refer to the “Touch Library Peripheral Touch Controller User's Guide”.