46.20 Peripheral Touch Controller (PTC) Electrical Specifications

Table 46-26. Peripheral Touch Controller Module Electrical Specifications
DC CHARACTERISTICS				Standard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated) Operating temperature: -40°C ≤ T_A≤ +85°C for Industrial
Param. No.	Symbol	Characteristics		Min.	Typ.	Max.	Units	Conditions
PTC_1a	C_LOAD SC⁽¹⁾	Self Capacitance Mode (PTC Channel Y0 - Y27)		—	—	14	pF	Maximum sensor load capacitance
PTC_1b	C_LOAD SC⁽¹⁾	Self Capacitance Mode (PTC Channel Y1 - 23, Y28 - 31)		—	—	20	pF
PTC_1c	C_LOAD SC⁽¹⁾	Self Capacitance Mode (PTC Channel Y24 - Y26)		—	—	17	pF
PTC_3	C_LOAD MC⁽¹⁾	Mutual Capacitance Mode (PTC Channel Y0 - Y31)		—	—	31	pF
PTC ANALOG GAIN SETTINGS ⁽²⁾
PTC_5	PTC_GAIN	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. Refer to the Touch Library Peripheral Touch Controller User Guide.