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参数资料
| 型号： | AT42QT1110-AZ |
| 厂商： | ATMEL CORP |
| 元件分类： | 速度传感器和接近开关 |
| 英文描述： | PROXIMITY SENSOR-CAPACITIVE, 0-5V, SQUARE, SURFACE MOUNT |
| 封装： | 7 X 7 MM, 1 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, TQFP-32 |
| 文件页数： | 10/46页 |
| 文件大小： | 657K |
| 代理商： | AT42QT1110-AZ |
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18
9570I–AT42–03/10
AT42QT1110-MZ/AT42QT1110-AZ
Touch mode
– The CHANGE pin is pulled low when one or more keys are in detect. The CHANGE
pin remains low as long as there is a key in detect, regardless of communications.
–The CHANGE pin is released when there are no keys in detect. No host
communications are required to release the CHANGE pin.
4.6
Stand-alone Mode
The QT1110 can operate in a stand-alone mode without the use of the SPI interface. The
settings are loaded from EEPROM and the device operates in 7-key mode using the Detect
outputs.
4.7
Key Modes
4.7.1
11-key Mode
In 11-key mode, the device can sense up to 11 keys. Alternatively, one key can be replaced by
the SYNC line as an external trigger input (see Section 4.8.2 on page 19).
11-key mode is configured by setting the “MODE” bit in the Device Mode setup byte (see
Key acquisition can be triggered in one of two ways: using the internal clock to trigger acquisition
either at a fixed repetition period or in a continuous “free run” mode (see Section 4.8.1), or using
the SYNC pin to provide an external trigger (see Section 4.8.2 on page 19),
4.7.2
7-key Mode
In 7-key mode, the detect outputs DETECT0 to DETECT6 become active on pins 22–27 and 30.
These outputs provide configurable PWM signals that indicate when each of the keys is
touched.
7-key mode is configured by clearing the “MODE” bit in the Device Mode setup byte (see
Each DETECT output can be individually configured to output a PWM signal while the matching
key is in detect or out of detect. This signal can be one of nine levels, ranging from low
(PWM = 0 percent) to high (PWM = 100 percent). This allows for the use of an indicating LED.
This is achieved by enabling the appropriate bit in the Key to LED setup byte (see Section 7.14
on page 35), and setting the desired outputs levels or PWMs in setup addresses 9 to 15 (see
4.8
Trigger Modes
4.8.1
Timed Trigger
In 11-key mode, The QT1110 can be configured to use the internal clock as a timed trigger. In
this case, the QT1110 is configured with a cycle period, such that each acquisition cycle starts a
specified length of time after the start of the previous cycle. If the cycle period is set to “0”, each
acquisition cycle starts as soon as the previous one has finished, resulting in the acquisition
cycles running back-to-back in a “free run” mode.
The use of a timed trigger, and the cycle period to be used, is set in the Device Mode setup byte
(see Section 7.4 on page 29).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT42QT1110-MU | 功能描述:电容触摸传感器 QTouch 11 Key Touch Sensor IC RoHS:否 制造商:Microchip Technology 电源电压: 通道数量: 封装 / 箱体: 尺寸: 温度范围: |
| AT42QT1110-MU QS470 | 功能描述:IC TOUCH SENSOR 11KEY 32QFN RoHS:是 类别:集成电路 (IC) >> 数据采集 - 触摸屏控制器 系列:QTouch™ 标准包装:96 系列:- 类型:- 触摸面板接口:- 输入数/键:- 分辨率（位）:- 评估套件:* 数据接口:- 数据速率/采样率 (SPS，BPS):- 电压基准:- 电源电压:- 电流 - 电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| AT42QT1110-MUR | 功能描述:QTOUCH 11 KEY TOUCH SENSOR IC 制造商:microchip technology 系列:* 包装:剪切带（CT） 零件状态:在售 封装/外壳:32-VFQFN 裸露焊盘 供应商器件封装:32-QFN（5x5） 标准包装:1 |
| AT42QT1110-MZ | 功能描述:电容触摸传感器 QTouch 11 Key Touch Sensor IC RoHS:否 制造商:Microchip Technology 电源电压: 通道数量: 封装 / 箱体: 尺寸: 温度范围: |
| AT42QT1111-AU | 功能描述:电容触摸传感器 QTouch 11 Key Touch Sensor IC RoHS:否 制造商:Microchip Technology 电源电压: 通道数量: 封装 / 箱体: 尺寸: 温度范围: |
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