Table of Contents

Introduction.....................................................................................................................................................1

MGC3140 Applications...................................................................................................................................1

Power Operation Modes.................................................................................................................................1

Key Features.................................................................................................................................................. 1

Peripheral Features........................................................................................................................................2

Packages........................................................................................................................................................2

1.

Pin Diagram............................................................................................................................................ 6

2.

48-Pin Allocation and Pinout Description Table...................................................................................... 7

3.

Theory of Operation: Electrical Near-Field (E-Field) Sensing................................................................. 9

3.1.

GestIC® Technology Benefits.....................................................................................................10

4.

Feature Description............................................................................................................................... 11

4.1.

Gesture Definition.......................................................................................................................11

4.2.

GestIC® Library.......................................................................................................................... 11

5.

System Architecture.............................................................................................................................. 16

5.1.

MGC3140 Controller.................................................................................................................. 16

5.2.

GestIC® Library.......................................................................................................................... 16

5.3.

External Rx Electrodes...............................................................................................................17

6.

Functional Description...........................................................................................................................20

6.1.

Reset.......................................................................................................................................... 20

6.2.

Power Management Unit (PMU)................................................................................................ 22

6.3.

Clocks.........................................................................................................................................23

6.4.

Operation Modes........................................................................................................................23

7.

Interface Description............................................................................................................................. 27

7.1.

I2C Client Mode.......................................................................................................................... 27

8.

Application Architecture........................................................................................................................ 31

8.1.

ESD Considerations................................................................................................................... 31

8.2.

Power Noise Considerations...................................................................................................... 31

8.3.

High-Frequency Noise Immunity................................................................................................ 31

8.4.

RF Emission............................................................................................................................... 31

8.5.

Reference Schematic................................................................................................................. 32

8.6.

Layout Recommendation........................................................................................................... 32

9.

Development Support........................................................................................................................... 33

9.1.

Aurea Software Package............................................................................................................33

9.2.

MGC3140 Linux Driver...............................................................................................................33

9.3.

GestIC® Hardware References.................................................................................................. 33

9.4.

Evaluation and Demonstration Kits............................................................................................ 33

MGC3140

and its subsidiaries

Advance Information Datasheet

DS40002037C-page 4