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Datasheet

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软件

说明

AT42QT1070

AT42QT1070 Complete

(文件大小: 400KB, 34 页数, 修订版 C, 更新时间: 10/2013)
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The AT42QT1070 (QT1070) is a digital burst mode charge-transfer capacitive sensor driver. The device can sense from one to seven keys, dependent on mode.

The QT1070 has the optimized architecture where no external components are required and only 1-pin per channel. It includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions, and the outputs are fully debounced.

The QT1070 modulates its bursts in a spread-spectrum fashion in order to heavily suppress the effects of external noise, and to suppress RF emissions. The QT1070 use a dual-pulse method of acquisition. This provides greater noise immunity and eliminates the need for external sampling capacitors, allowing touch sensing using a single pin.

关键参数

参数

Pin Count:

20

Touch Sensor Type:

Buttons

# of Touch Channels:

7

Temp. Range (deg C):

-40 to 85

Operating Voltage (Vcc):

1.8 to 5.5

Interface Type:

I2C

Acquisition Method:

QTouch-ADC

 

订购码 封装 操作范围 载体类型 样品 Atmel 商店可用性1 单价2 网上购买
AT42QT1070-SSU SOIC (150mil) 14S1 14 请求
AT42QT1070-MMH VQFN 20M2 20 请求



1Backlog orders can be placed for items currently not available.
2Suggested retail price per unit for budgetary use only.