Datasheet

MTCH101
DS41664A-page 4 Preliminary  2012 Microchip Technology Inc.
2.0 TYPICAL CIRCUIT
The MTCH101 can work either as a stand-alone device
to control a LED (see Figure 2-1) to indicate touch/
proximity, or work with host MCU (see Figure 2-2).
FIGURE 2-1: TYPICAL CIRCUIT AS STAND-ALONE
FIGURE 2-2: TYPICAL CIRCUIT WITH HOST MCU
MTI
V
SS
MTSA
MTPM
V
DD
MTO
MTCH101
1
2
3
Proximity Sensor
R3
4.7k
R4
10k
10kR5
1kR6
C1
0.1 µF
4
5
6
R1
R2
V
DD
VDD
VDD
VDD
MTI
V
SS
MTSA
MTPM
V
DD
MTO
MTCH101
1
2
3
Proximity Sensor
R1
4.7k
R2
10k
10k
R3
4.7k
R4
C1
0.1 µF
4
5
6
Host
Digital output
Digital input
DAC output
V
DD
VDD