原标题：Microchip MGC3030 3D手势识别和运动跟踪解决方案

　　Microchip公司的MGC3030 3D手势识别和运动跟踪控制器是基于Microchip专利的GestIC®技术,采用电近场传感技术,包括了开发3D手势输入传感系统所有的块图,具有先进的3D信号处理单元,检测距离 0 到10 cm,接收器灵敏度优于1fF,位置速率200个位置/秒,主要用于音频产品,笔记本电脑/键盘/PC外设,家庭自动化,白色家电,工业开关,医疗产品,游戏控制器和音频控制.本文介绍了MGC3030主要特性及其功耗特性,外设特性, MGC3030框图, 控制系统架构图, 参考电路图以及Woodstar开发板主要特性和相应应用电路,装配图和材料清单.

　　Microchip’s MGC3X30 are 3D gesture recognition and motion tracking controller chips based on Microchip’s patented GestIC® technology. They enable usercommand input with natural hand and finger movements. Applying the principles of electrical nearfield sensing, the MGC3X30 contain all the building blocks to develop robust 3D gesture input sensing systems. Implemented as a low-power mixed-signal configurable controller, they provide a large set of smart functional features with integrated signal driver,a frequency adaptive input path for automatic noise suppression and a digital signal processing unit. Microchip’s on-chip Colibri Suite obsoletes processing needs at the host, reduces system power consumption resulting in low software development efforts for short time-to-market success. The MGC3XXX family represents a unique solution that provides gesture information of the human hand in real time. Dedicated chip family members add position data, touch or multi touch information to the free space gesture sensing.

　　The MGC3XXX allow the realization of a new generation of user interfaces across various industry markets.

　　MGC3030主要特性:

　　• Recognition of 3D Hand Gestures and x, y, z Positional Data (MGC3130)

　　• Proximity and Touch Sensing

　　• Built-in Colibri Gesture Suite (running on chip)

　　• Advanced 3D Signal Processing Unit

　　• Detection Range: 0 to 10 cm

　　• Receiver Sensitivity: <1 fF

　　• Position Rate: 200 positions/sec

　　• Spatial Resolution: up to 150 dpi

　　• Carrier Frequency: 44 kHz to 115 kHz

　　• Channels Supported:

　　- Five receive (Rx) channels

　　- One transmit (Tx) channel

　　• On-chip Auto Calibration

　　• Low Noise Radiation due to Low Transmit Voltage and Slew Rate Control

　　• Noise Susceptibility Reduction:

　　- On-chip analog filtering

　　- On-chip digital filtering

　　- Automatic frequency hopping

　　• Enables the use of Low-Cost Electrode Material including:

　　- Printed circuit board

　　- Conductive paint

　　- Conductive foil

　　- Laser Direct Structuring (LDS)

　　- Touch panel ITO structures

　　• Field Upgrade Capability

　　• Operating Voltage: 3.3V (+/-5%) (single supply)

　　• Temperature Range: -20℃ to +85℃

　　MGC3030功耗特性:

　　• Variety of Several Power Operation modes include:

　　- Processing mode: 20 mA @ 3.3V, typical

　　- Programmable Self Wake-up: 110 μA @ 3.3V

　　- Deep Sleep: 9 μA @ 3.3V, typical

　　MGC3030外设特性:

　　• 1x I2C™ Interface for Configuration and Sensor output streaming

　　• Five Gesture Port pins for individual mapping of gesture to EIOs

　　MGC3030应用:

　　• Audio Products

　　• Notebooks/Keyboards/PC Peripherals

　　• Home Automation

　　• White Goods

　　• Switches/Industrial Switches

　　• Medical Products

　　• Game Controllers

　　• Audio Control

　　图1. MGC3030框图

　　图2. MGC3030控制系统架构图

　　图3. MGC3030参考电路图

　　Woodstar开发板

　　The Woodstar Development Kit is designed to support an easy integration of Microchip’s MGC3030 3D Gesture Controller into the customer’s applications. It provides MGC3030 system setup, related hardware and software references:

　　• Aurea Software Package with the Aurea Graphical User Interface and GestIC Library

　　• MGC3030/3130 Software Development Kit (SDK)

　　• MGC3030/3130 PIC18 Host Reference code

　　With the help of these tools, the design-in process can be easily performed in five steps:

　　1. Feature Definition

　　2. Electrode Design

　　3. MGC3030 Parameterization

　　4. Host Application Programming

　　5. Verification

　　Woodstar hardware builds a complete MGC3030 reference system consisting of three

　　individual PCBs:

　　• MGC3030 Unit

　　• I2C™ to USB Bridge

　　• Reference Electrode with a 95x60 mm sensitive area

　　It can be plugged to a PC via a USB cable and used for evaluation of the MGC3030

　　chip and the GestIC technology. During the customer’s design-in process the individual

　　boards can be combined according to the customer’s needs.

　　Three examples are given below:

　　• Combine the MGC3030 unit and the I2C to USB bridge to evaluate customized electrodes

　　• Use the I2C to USB bridge to parameterize and debug the MGC3030 application circuitry in the customer’s design

　　• Combine the MGC3030 unit and electrodes to develop gesture-driven applications for PC-based or embedded software environments

　　Woodstar开发板包括:

　　• MGC3030 Module

　　• I2C to USB Bridge Module

　　• Reference Electrode (95x60 mm sensitive area)

　　• USB Cable for PC Connection

　　图4. Woodstar开发板套件外形图

　　图5. MGC3030带内部开关的参数化电路图

　　图6. MGC3030带外部开关的参数化电路图

　　图7. MGC3030基于USB应用的参数化电路图

　　I2C到USB桥材料清单:

　　I2C到USB桥安装选择件:

　　MGC3030单元材料清单: