DM160220 datasheet(3/20 Pages) MICROCHIP

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 2012-2013 Microchip Technology Inc.

Preliminary

DS40001664B-page 3

MTCH101

1.0

DEVICE OVERVIEW

The MTCH101 provides an easy way to add proximity

or touch detection to any human interface application.

The device integrates a single-channel capacitive

proximity detection, which can work through plastic,

glass or wood-front panel. It also supports a wide range

of conductive materials as sensor, like copper pad on

PCB, silver or carbon printing on plastic, Indium Tin

Oxide (ITO) pad, wire/cable, etc. On-board adjustable

sensitivity and power mode selection allow the user to

configure the device at run time easily. An active-low

output will communicate the state of the sensor to a

host/master MCU, or drive an indication LED (see

Figure 1-1).

FIGURE 1-1:

BLOCK DIAGRAM

ADC

Proximity

Scan Driver

Proximity Sensor

Data Filtering

Proximity

Decoding

Power Mode

Control

State Output

Sensitivity Adjust

Host/

Discrete

Components

MTCH101

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