Datasheet

29.3 Block Diagram
Figure 29-1. PTC Block Diagram Mutual-Capacitance
Compensation
Circuit
Acquisition Module
- Gain control
- ADC
- Filtering
R
S
IRQ
Result
Y
0
Y
1
Y
m
X
0
X
1
X
n
X Line Driver
Input
Control
10
C
X0Y0
C
X
n
Y
m
Figure 29-2. PTC Block Diagram Self-Capacitance
Compensation
Circuit
Acquisition Module
- Gain control
- ADC
- Filtering
R
S
IRQ
Result
Y
0
Y
1
Ym
X Line Driver
Input
Control
10
C
Y0
C
Ym
ATmega328PB
PTC - Peripheral Touch Controller
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001906C-page 361