参数资料
| 型号： | AT42QT2161-MMU |
| 厂商： | Atmel |
| 文件页数： | 11/14页 |
| 文件大小： | 0K |
| 描述： | IC TOUCH SENSOR 16KEY 28QFN |
| 标准包装： | 1 |
| 系列： | QMatrix™, QSlide™ |
| 类型： | 电容性 |
| 触摸面板接口： | 8，2 线 |
| 输入数/键： | 16 键，滑块 |
| 分辨率（位）： | 10 b |
| 评估套件： | * |
| 数据接口： | I²C，串行 |
| 电压基准： | 内部 |
| 电源电压： | 1.8 V ~ 5.5 V |
| 电流 - 电源： | 1.14mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-VFQFN 裸露焊盘 |
| 供应商设备封装： | 28-VQFN |
| 包装： | 标准包装 |
| 其它名称： | AT42QT2161-MMUDKR |
6
9614A–AT42–08/10
AT42QT2161
The QT2161 includes all signal processing functions necessary to provide stable
sensing under a wide variety of changing conditions. Only a few external parts are
required for operation. The entire circuit can be built within a few square
centimeters of single-sided PCB area. CEM-1 and FR1 punched, single-sided
materials can be used for the lowest possible cost. The PCB’s rear can be mounted
flush on the back of a glass or plastic panel using a conventional adhesive, such as
3M VHB two-sided adhesive acrylic film.
The device uses an I2C-compatible interface to allow key data to be extracted and
to permit individual key parameter setup. The command structure is designed to
minimize the amount of data traffic while maximizing the amount of information
conveyed.
In addition to normal operating and setup functions the device can also report back
actual signal strengths.
Figure 2-1.
Field Flow Between X and Y Elements
2.2
Keys and Slider
The QT2161 is capable of a maximum of 16 keys. These can be located anywhere within an
electrical grid of 8X and 2Y scan lines.
A lesser number of enabled keys will cause any unused acquisition burst timeslots to be pared
from the sampling sequence, to optimize acquire speed and lessen power consumption. Thus, if
only 8 keys are actually enabled, only 8 timeslots are used for scanning.
Additional processing can be done on the keys to form a slider. The slider will have to start at X0
and use only Y0. The slider can consist of a minimum of 2 keys and a maximum of 8 keys.
2.3
Enabling/Disabling Keys
Keys can be enabled by setting a nonzero burst length. A zero burst length disables the key.
overlying panel
X
element
Y
elem ent
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT42QT2161-MMU QS519 | 制造商:Atmel Corporation 功能描述:QSLIDE, 16 KEY - QMATRIX SENSO |
| AT42QT2640-AU | 功能描述:Capacitive Touch Buttons, Slider, Wheel 44-TQFP (10x10) 制造商:atmel 系列:QMatrix?? 包装:托盘 零件状态:有效 类型:按钮，滑块，拨轮 接近探测:无 输入数:最高 64 LED 驱动器通道:- 接口:SPI 分辨率:11 b 电压 - 电源:4.75 V ~ 5.25 V 电流 - 电源:13mA 工作温度:-40°C ~ 105°C 封装/外壳:44-TQFP 供应商器件封装:44-TQFP（10x10） 标准包装:160 |
| AT42QT2640-AUR | 功能描述:64 CHANNEL QMATRIX FMEA EN60730 制造商:microchip technology 系列:QMatrix?? 包装:剪切带（CT） 零件状态:在售 类型:按钮，滑块，拨轮 接近探测:无 输入数:最高 64 LED 驱动器通道:- 接口:SPI 分辨率:11 b 电压 - 电源:4.75 V ~ 5.25 V 电流 - 电源:13mA 工作温度:-40°C ~ 105°C 封装/外壳:44-TQFP 供应商器件封装:44-TQFP（10x10） 标准包装:1 |
| AT42QT4120 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Patented spread-spectrum charge-transfer (transverse mode) |
| AT42QT4160 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Patented spread-spectrum charge-transfer (transverse mode) |
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