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參數(shù)資料
| 型號： | AT42QT1012-MAH |
| 廠商： | Atmel |
| 文件頁數(shù)： | 3/4頁 |
| 文件大小： | 0K |
| 描述： | IC SENSR TOUCH/PROX 1CH 8UDFN |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | QTouch™ |
| 類型： | 電容性 |
| 觸摸面板接口： | 2 線 |
| 輸入數(shù)/鍵： | 1 鍵 |
| 分辨率（位）： | 9，14 b |
| 評估套件： | * |
| 數(shù)據(jù)接口： | 串行 |
| 電壓基準(zhǔn)： | 內(nèi)部 |
| 電源電壓： | 1.8 V ~ 5.5 V |
| 電流 - 電源： | 124µA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-UFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 8-UDFN，USON |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | AT42QT1012-MAHDKR |
www.atmel.com/singletouch
3
Standard Features
The following functionality is common to all three ICs in the AT42QT101X family.
Drift Compensation
Drift compensation algorithms constantly adjust the reference level in the device to ensure that the key will remain
calibrated even if there is a large change in background capacitance.
Spread Spectrum Acquisition
The devices modulate their frequency whilst measurements are taken. This has the effect of reducing emission levels
and susceptibility to interference as there is no single burst frequency.
Power Consumption
All the devices have a range of power modes depending on the response time required. The power consumption is
kept to a minimum whatever power mode the device is in. This, combined with the auto-off functionality available on
the QT1012 means that for portable devices, adding capacitive sensing functionality does not significantly impact on
the battery lifetime.
Sensitivity
By careful capacitor selection and key design, the sensitivity of a capacitive button can be set to work with a wide
range of panel thicknesses and materials. As the sensitivity of the key can be varied significantly it is also possible to
use any of the single key devices as proximity sensors. Such functionality can be used in toys or used to illuminate “hid
den until lit” user interfaces.
Calibration
The device will automatically calibrate on power up. If there is an obstruction on the key for a prolonged period, the
sensor will re-calibrate after a set time period (with the exception of the QT1011, which will indicate a touch condition
as long as the sensor is “in detect”). This ensures that the device will detect a new touch correctly.
Detection
In order for the sensors to only go active on intended touches, the ICs include signal processing which helps to
suppress detections caused by electrical noise and quick brushes with the surface.
nPower switches
nHearing aids
nIsolated buttons/sensors
nChildren’s toy
nTimers
nProximity sensors
Typical Applications
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT42QT1012-MAHR | 功能描述:IC SENSR TOUCH/PROX 1CH 8UDFN 制造商:microchip technology 系列:QTouch?? 包裝:剪切帶（CT） 零件狀態(tài):在售 類型:按鈕 接近探測:無 輸入數(shù):1 LED 驅(qū)動(dòng)器通道:- 接口:- 分辨率:14 b 電壓 - 電源:1.8 V ~ 5.5 V 電流 - 電源:59μA 工作溫度:-40°C ~ 85°C 封裝/外殼:8-UFDFN 裸露焊盤 供應(yīng)商器件封裝:8-UDFN，USON 標(biāo)準(zhǔn)包裝:1 |
| AT42QT1012-TSHR | 功能描述:電容觸摸傳感器 One-Channel Touch Sensor IC RoHS:否 制造商:Microchip Technology 電源電壓: 通道數(shù)量: 封裝 / 箱體: 尺寸: 溫度范圍: |
| AT42QT1012-TSHR QS448 | 制造商:Atmel Corporation 功能描述:ONE-CHANNEL TOUCH SENSOR IC |
| AT42QT1040 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:QTouch? 4-key Sensor IC |
| AT42QT1040-MMH | 功能描述:電容觸摸傳感器 4Key, 4Discrete Out Low Power RoHS:否 制造商:Microchip Technology 電源電壓: 通道數(shù)量: 封裝 / 箱體: 尺寸: 溫度范圍: |
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