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| MTCH101 Datasheet, PDF (4/20 Pages) Microchip Technology – Single-Channel Proximity Detector | |||
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MTCH101
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
Proximity Sensor
VDD
R3 1
MTCH101
MTI
MTPM 6
R5 10k
4.7k
VDD
2
VSS
VDD
VDD
5
VDD
C1
R1
0.1 µF
R6 1k
R4 3
MTSA
MTO 4
10k
R2
FIGURE 2-2:
TYPICAL CIRCUIT WITH HOST MCU
Proximity Sensor
Host
MTCH101
R1 1
MTI
4.7k
2
VSS
R2 3
10k
MTSA
MTPM
VDD
MTO
6 R3
10k
5
C1
0.1 µF
4
Digital output
VDD
VDD
R4 4.7k
Digital input
DAC output
DS40001664B-page 4
Preliminary
ï£ 2012-2013 Microchip Technology Inc.
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