46.20 Peripheral Touch Controller (PTC) Electrical Specifications
| DC 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_1a | CLOAD SC (1) | Self
Capacitance Mode (PTC Channel Y0 - Y27) |
— | — | 14 | pF | Maximum sensor load capacitance | |
| PTC_1b | CLOAD SC (1) | Self
Capacitance Mode (PTC Channel Y1 - 23, Y28 - 31) |
— | — | 20 | pF | ||
| PTC_1c | CLOAD SC (1) | Self
Capacitance Mode (PTC Channel Y24 - Y26) |
— | — | 17 | pF | ||
| PTC_3 | CLOAD MC (1) | Mutual Capacitance Mode (PTC Channel Y0 - Y31) | — | — | 31 | pF | ||
| PTC ANALOG GAIN SETTINGS (2) | ||||||||
| PTC_5 | PTCGAIN | 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.