MGC3140-I/MV - MICROCHIP TECHNOLOGY

www.microchip.com/touch

Touch and 3D Gesture Control

User interfaces with push buttons have several moving parts,

which significantly decrease their reliability. They also require

complex design and assembly as well as a major investment

in tooling. Microchip touch technologies, such as capacitive

or Metal-over-Capacitive (MoC), allow you to create a high-

impact user interface at a lower total system cost.

■Easy to use

• Turnkey, bus or digital I/O interface

• Microcontroller based

■Robust

• High SNR (Signal to Noise Ratio)

• IEC61000, EFT and BCI tested

• IEC/UL 60730 Safety Class-B supported

■Lowest Power

• Proximity sensing down to 1 μA

• Capacitive Sensing down to 5 μA

Capacitive Touch Sensing

How It Works

A capacitor is simply two electrically isolated conductors

which are in close proximity to one another. The

conductors can be wires, traces on a PCB or even the

human body. The capacitive touch sensor is a copper pad

area that is capacitively coupled to grounds located

elsewhere in the system creating a parasitic capacitance.

A covering plate material such as glass is used to provide

the user touch surface. The introduction of the user’s

finger then produces an increase in capacitance which will

be detected by the system.

Microcontroller-Based Solution

Microchip offers a variety of standard PIC and AVR MCUs

enabling you to dedicate an MCU for touch function or

integrate touch sensing with other application functions

onto a single MCU:

■8-, 16- and 32-bit PIC, AVR and SAM (ARM M

) MCUs

for touch sensing

■From 6-pin to 144-pin devices

■Up to 512 KB Flash memory

■On-chip integration options include USB, CAN, IrDA,

wireless protocol stack, segmented LCD and graphics

accelerator and LCD driver for TFT/STN displays

Low-Cost mTouch® Evaluation Kit (DM160227)

The Low-Cost mTouch Evaluation

Kit provides a simple platform for

developing capacitive touch sense

applications using including water-

resistant touch.

mTouch Capacitive Touch Software Package

The mTouch Software Package (PIC MCUs) and the QTouch®

Library (AVR/SAM MCUs) enable designers to easily

integrate touch technologies into their application. It allows

the implementation in a small dedicated controller as well

as integration of the complete application in a single MCU.

Microchip’s award winning technologies cover a broad range of implementations for touch and gesture controlled

applications—from touch buttons (1D) to touch screens (2D), as well as 3D gesture control.

Microchip has the solution for your user interface needs, including:

■Water-resistant touch buttons

■Heavy duty touch solutions under metal

■Lower-power touch pads

■Non-touch interaction based on hand gestures

■Cost-efﬁ cient AVR® and PIC® MCU-based touch solutions

with integrated touch peripheral

■High-performance 32-bit touch solutions with integrated

touch peripheral (SAMD/L series)

■IEC/UL 67030 Class-B certiﬁ ed touch solutions

Keys, Sliders and Proximity

2Touch and 3D Gesture Control

Keys, Sliders and Proximity

Turnkey Solutions

The MTCH10X capacitive touch controllers provide the

fastest and simplest way to evolve from mechanical

buttons to modern touch. Designed for direct button

replacement, the MTCH10X family provides dedicated

digital output for every input channel while implementing

latest noise suppression technologies.

MTCH10X Evaluation Board (DM160229)

The MTCH10X Evaluation Board

provides an out-of-the-box experience

for performance and the robustness of

Microchip touch solutions.

The CAP1XXX and AT42QTXXXX capacitive touch controllers

provide a wide variety of slider, button and proximity

functionality. A Graphical User Interface (GUI) allows the

designer to analyze sensor data and easily configure

the controller.

■From 1 to 64 sensors

■Up to 11 LED drivers

■Enhanced proximity option with guard ring

■I2C, SPI, UART or GPIO communication

■1.8–5.5V

■As small as 2 × 3 mm TDFN or optimized for

manufacturing as SOIC.

CAP1188 Evaluation Board (DM160222)

The CAP1188 evaluation kit provides

an easy platform for evaluating and

developing a variety of capacitive touch

sense applications and LED configuration

using

CAP11XX family.

CAP1298 Evaluation Board (DM160223)

The CAP1298 evaluation kit provides

an easy platform for evaluating and

developing a variety of capacitive touch

sense and proximity applications using

CAP12XX family.

■From 1 to 8 sensors

■Water resistance

■Proximity

■Packaging as small as

2 × 3 mm UDFN

Metal-Over-Capacitive Technology

Application Notes

In addition to capacitive touch, Microchip has developed

metal-over-capacitive technology enabling:

■Metal surfaces such as stainless steel or aluminum

■Sense through glove support

■Waterproof designs

■Braille-friendly interfaces

Metal-over-capacitive technology is implemented with the

same Microchip hardware, PCB, electronics and firmware

as capacitive touch technology and is compatible with all

touch products.

How It Works

A metal-over-capacitive touch system uses a conductive

target layer suspended over a capacitive touch sensor, to

act as a second capacitor plate. When the user applies a

downward pressure on the target, the resulting deformation

moves the center of the target closer to the capacitive

sensor. The change in spacing produces a change in

capacitance, which is then measured by the touch controller.

The target can be a sheet of metal with the Fascia marking

screen on the outer surface, a metal flashing on the back

of a plastic fascia, or a co-molded layer composed of both

metal and plastic. The spacer layer is typically an adhesive

with a cut out over the capacitive sensor, and the sensors

themselves can be either printed conductive pads on a

plastic film or pads etched into the top surface of a PCB.

■Techniques for Robust Capacitive Touch Sensing,

AN1334

■mTouch Sensing Solution Acquisition Methods Capacitive

Voltage Divider, AN1478

■Proximity Design Guide, AN1492

■CAP1XXX Touch Key Controller Tuning Guide, AN2034

■mTouch Metal-Over-Cap Technology, AN1325

■Implementing Metal-Over-Capacitive Touch Sensors,

AN1626

For datasheets, user’s guides and general design information please visit www.microchip.com/touch.

Touch and 3D Gesture Control

Touch Pad and Touch Screen Controllers

Microchip offers a broad portfolio of touch solutions for

touch screen and touch pad applications that make it easy

for designers to integrate touch-sensing interfaces.

■High-ﬂ exibility

• We offer both turnkey and source code touch

solutions with options to integrate touch sensing

with application code on a single low-cost MCU

■Sophisticated

• Advanced touch solutions use sophisticated

proprietary touch decoding algorithms to send

your application fully processed and reliable

touch coordinates

■Easy Integration

• Add touch technology to your application without

extensive development time, risk or cost

• On-board surface gesture detection (multi-ﬁ nger

scroll, swipes, tap events, etc.) allow even GPIO-

based integration

• Lowest power

Projected Resistive and Capacitive

Touch Solutions

Microchip offers both projected capacitive and resistive

touch solutions to allow you to choose the best fit for your

design. Each offers different advantages:

Analog Resistive

■Low-cost sensors that accept ﬁ nger, glove or

stylus inputs

■Ease of manufacturing and integration

Projected Capacitive

■Glass front sensor construction provides high durability,

good optics and light touch

■Multi-touch capability which enables gestures

Touch Sensing Technology Comparison

Analog

Resistive

Projected

Capacitive

Cost for screen < 6" Lowest Low

Cost for screen > 10" Lowest High

Optics 75% 90%

Screen Life Good Better

Ease of Integration Easy Moderate

Multi-Touch Limited Ye s

Touch Object Finger, Stylus/

Glove Finger

Resistive Technology Overview

How It Works

Two conductive coated polyester layers are separated by

a spacer layer. When touched, the top (flex) layer moves

past the spacer layer and contacts the bottom (stable)

layer. The point of contact creates a voltage divider in the

X and Y directions.

AR1000 Resistive Touch Advantages

■Proven plug-and-play design

■Eliminates all host processing of touch data

■Built in decoding and advanced ﬁ ltering

■Low system power—wake on touch

■Universal, supports all 4-, 5-, and 8-wire sensors

■SPI, I2C, UART or USB Interfaces

■Free drivers for most major platforms

Development Tools for Resistive Touch

Microchip provides fully functional hardware and feature-

rich GUIs to quickly get started using AR1000 resistive

touch controllers for a turnkey, cost effective solution.

mTouch AR1100

Development Kit

(DV102012)

mTouch AR1000

Development Kit

(DV102011)

4Touch and 3D Gesture Control

Touch Screen and Touch Pad Controllers

Projected Capacitive Technology

Included Gestures

All turnkey controllers (MTCH61XX/MTCH63XX) detect (multi-)finger gestures.

Development Tools for Projected Capacitive Touch

Microchip makes it easy to add gestures and multi-touch to your interface design.

Microchip’s projected capacitive technology is available

as turnkey touch controllers (maXTouch® technology) or

solutions across the portfolio of 8-, 16- and 32-bit PIC

and maXTouch microcontrollers. You can use a dedicated

controller for touch or integrate additional applications with

touch into a single MCU. Our flexible, royalty-free source

code and turnkey projected capacitive touch controllers

provide you with solutions to create the innovative user

interfaces that consumers desire.

Lowest Power Touch Pads: MTCH6102

Microchip offers key advantages in touch pad design with

low-power and low-cost solutions to enable simple touch

designs with short time-to-market. Microchip leverages

eXtreme Low Power (XLP) technology to provide industry-

leading low power touch solutions to maximize battery life.

Example power measurements for a typical application

with 11 channels using the

MTCH6102 at 2V are:

■Standby <1 μW

■Approach <30 μW

■Active <300 μW

How It Works

Projected Capacitive Touch Sensors operate by measuring

the tiny change in capacitance on an electrode due to the

influence of a human finger or other object.

■ One or two thin conductive

layers

■ Screen is conﬁ gured as

rows and columns

■ Point of contact identiﬁ ed

by change in capacitance

of row and column cells

electrodes

QTouch Surface Library

For SAMD/LXXXX devices, Microchip offers the QTouch

Surface Library to enable fast and reliable touch pad

implementations. The use of the QTouch Surface Library is

as simple as the original QTouch Library, fully supported by

Studio 7.

Single Tap

Double Tap

Tap and Hold

Swipe Up

Swipe Up and Hold

Swipe Down

Swipe Down and Hold

Swipe Left

Swipe Left and Hold

Swipe Right

Swipe Right and Hold

MTCH6102 Low-Power Projected Capacitive Touch

Pad Development Kit (DM160219)

■ Supports the MTCH6102

■ Surface gesture detection on board

■ GUI with skins to accelerate UI

development

MTCH6303 Multi-Touch PCAP Development Kit

(DV102013)

■ Supports the MTCH6303

■ Ten-ﬁ nger multi-touch

■ Multi-ﬁ nger surface gesture

detection on board

■ GUI provided for system

integration

■Convenient direct USB interface

■8" ITO sensor included

For datasheets, user’s guides and general design information please visit www.microchip.com/touch.

Touch and 3D Gesture Control

3D Tracking and Gesture Sensing

MGC3030/3130/3140 3D Gesture

Controllers with GestIC® Technology

The MGC3030/MGC3130 are single-chip solutions to enable

3D gesture control in almost any product, such as wireless

speakers, radios, light switches and remote controls. The

MGC3X30 are optimized for embedded usage, require no host

intelligence or resources and come with a complete gesture

portfolio. MGC3140 is designed for automotive usage.

The Beneﬁ ts of GestIC Technology

Similar to capacitive touch sensing, GestIC technology

uses E-field sensing to detect gestures. Electrodes

remain invisible behind the device housing, allowing an

aesthetically pleasing industrial design without the need

for holes or other cut-outs typically required for cameras or

infrared-based systems. Further benefits include:

■Full surface coverage, no blind spots

■Lighting independent

■Build in adaptive noise ﬁ ltering

■Only gesture solution with built-in auto wake/sleep

• <100 μA sleep current

■Low system complexity

■Low costs

The MGC3030/MGC31X0 output direct and immediately

usable results—everything is detected on-chip including

gestures, approach, touch events and x/y/z 3D positions.

The MGC3X30 controllers are true single-chip solutions

for the next generation of user interface, enabling gesture-

based UI applications for embedded products.

Fast, Precise and Robust

Implemented as a low-power mixed-

signal System-on-Chip (SoC), the

MGC3x30 controllers offer a rich set

of smart-functional features including:

■0 (touch) to 10 cm detection range

■Fast report rate up to 200 Hz (5 ms)

■Field upgradable on-board gesture suite

■Digital interface (I2C) and conﬁ gurable GPIOs

On-Board Gesture Recognition

Gestures

Gesture recognition is performed on chip to eliminate the

complexity and need for additional processing, a unique

feature to GestIC technology shortening your time-to-market.

The gesture suite gives the MGC3030/MGC31X0 controllers

the ability to recognize gestures while the rest of the system

is powered down or in a power savings mode. It is field-

upgradable to ensure your system can accommodate and

use additional gesture algorithms as they become available.

Like speech and language, everybody’s hand gestures

have a unique quality that differs in timing, amplitude and

a broad range of other metrics. The integrated GestIC

Technology Colibri Suite makes use of a Hidden Markov

Model for high recognition rates of various gestures.

This detects the subtle difference between deliberate

gestures and general hand movement to limit response to

unintended gestures.

Approach Wake-up is primarily used to wake up

the MGC3130 (and the rest of the system) when

a hand approaches the sensing area.

Flick Gestures are available as swipes or edge

flicks in four directions: North, East, South and

West. These are typically used for commands such

as next, previous, on/off or up/down.

The Airwheel Gesture is an intuitive input for

up/down adjustments to levels and values. The

rotations are also detected on chip.

Sensor Touch detects touch, tap or double tap

at any of the five receive electrodes. This is

typically used for selection and confirmation

commands.

The Wave Gesture registers small finger

movements and differentiates in the x- and

y-direction. Applications include shuffle play

control in an audio device.

The Hold Gesture detects a steady hand to

trigger events, best envisioned as the touchless

enter key. Timing is configurable.

The Presence Gesture enables intelligent back

lighting and in the simplest manner.

Position Tracking is available on the MGC3130.

6Touch and 3D Gesture Control

Gesture Sensing and Multi-Touch

For datasheets, user’s guides and general design information please visit www.microchip.com/gestic.

Evaluation Tools

MGC3130 Hillstar Development Kit (DM160218) and

MGC3030 Woodstar Development Kit (DM160226)

Features:

■ 5" electrode and variety of

electrode reference designs

■ GestIC technology electrode

design guide

■ MGC3030/3130 unit (GestIC

Technology Colibri Suite)

■I2C/USB bridge (USB powered)

■I2C interface reference code

■Microchip’s AUREA GUI for Windows 7 and Windows 8

■SDK for Windows 7, Windows 8, Windows 10, Android™

and Linux® operating systems

PCAP with 3D GestIC Sensing Development Kit

(DV102014)

Features:

■8" multi-touch (ITO)

■ 2D3D sensing by combining

2D multi-touch with 3D gesture

sensing

■USB interface

■API and SDK

■Microchip’s AUREA GUI for Windows 7 and Windows 8

3DTouchPad: 2D Multi-Touch Pad with 3D

Gesture Sensing

The 3DTouchPad (DM160225) converges Microchip’s 2D

projected capacitive maXTouch solution with Microchip’s

patented GestIC technology for 3D gesture recognition.

The 3DTouchPad is a PC peripheral that extends the 2D

touch pad with 3D gestures. The 3DTouchPad offers multi-

finger tracking and surface gestures as well as free-space

3D gestures above the surface.

The 3DTouchPad is a powerful accessory to enhance your

productivity by providing gestures to interact with your PC

as well as a compelling development platform.

Microchip provides and SDK/API for app/driver

development as well as a Graphical User Interface (GUI).

For more information, please visit

www.microchip.com/3dtouchpad.

3D Gestures for 2D Multi-Touch Displays

Gestures are a powerful way to

enhance the user interface of a

product. They are simple to use and

simple to perform.

With Microchip, you can now go even further by adding 3D

gestures to multi-touch displays. By combining 10-finger,

multi-touch sensing with 3D gestures up to 20 cm from

the display, the touch display we all embrace becomes

sensible for the third dimension. Interaction with gloves,

prevention of smudging and touchless interaction can all

become a reality.

Features include:

■maXTouch technology-based 2D multi-touch sensing

■10-ﬁ nger touch sensing

■>100 Hz report rate

■Extended gesture range of up to 20 cm

■Complete 3D gesture suite available

Please contact Microchip Sales or Marketing for details

and availability.

Touch and 3D Gesture Control

Microchip Technology Inc.

2355 W. Chandler Blvd.

Chandler, AZ 85224-6199

Sales Ofﬁ ce Listing

Support

Microchip is committed to supporting its customers

in developing products faster and more efficiently. We

maintain a worldwide network of field applications

engineers and technical support ready to provide product

and system assistance. In addition, the following service

areas are available at www.microchip.com:

■Support link provides a way to get questions

answered fast: http://support.microchip.com

■Sample link offers evaluation samples of any

Microchip device: http://sample.microchip.com

■Forum link provides access to knowledge base and

peer help: http://forum.microchip.com

■Buy link provides locations of Microchip Sales Channel

Partners: www.microchip.com/sales

Training

If additional training interests you, then Microchip can

help. We continue to expand our technical training options,

offering a growing list of courses and in-depth curriculum

locally, as well as significant online resources – whenever

you want to use them.

■Technical Training Centers and Other Resources:

www.microchip.com/training

■MASTERs Conferences: www.microchip.com/masters

■Worldwide Seminars: www.microchip.com/seminars

■eLearning: www.microchip.com/webseminars

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6/23/16

Information subject to change. The Microchip name and logo, the Microchip logo, GestIC and PIC are registered trademarks of

Microchip Technology Incorporated in the U.S.A. and other countries. mTouch is a registered trademark of Microchip Technology

Incorporated in the U.S.A. AVR, maXTouch and QTouch are registered trademarks of Atmel, a wholly owned subsidiary of Microchip.

Rights Reserved. Printed in the U.S.A. 7/16

DS00001599D