Data Sheet

931
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
35.3 Block Diagram
Figure 35-1. PTC Block Diagram Mutual-capacitance
Figure 35-2. PTC Block Diagram Self-capacitance
Compensation
Circuit
Acquisition Module
- Gain control
- ADC
- Filtering
R
S
100K
IRQ
Result
Y
0
Y
1
Y
15
X
0
X
1
X
15
X Line Driver
Input
Control
10
Compensation
Circuit
Acquisition Module
- Gain control
- ADC
- Filtering
R
S
100K
IRQ
Result
Y
0
Y
1
Y
15
X Line Driver
Input
Control
10
C
Y0
C
Y15