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QT1080 PDF预览

QT1080

更新时间: 2024-11-04 03:39:31
品牌 Logo 应用领域
昆腾 - QUANTUM 传感器
页数 文件大小 规格书
16页 205K
描述
8 KEY QTOUCH SENSOR IC

QT1080 数据手册

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lQ  
QT1080  
8 KEY QTOUCH™ SENSOR IC  
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Eight completely independent QT touch sensing fields  
Designed for low-power portable applications  
100% autocal for life - no adjustments required  
Direct outputs - either encoded or ‘per key’  
Fully debounced results  
24 23 22  
20 19 18 17  
21  
SNS5  
SNS4K  
SNS4  
SNS3K  
SNS3  
SNS2K  
SNS2  
SN1K  
25  
26  
27  
28  
29  
30  
31  
16  
15  
14  
13  
12  
11  
10  
9
OUT_0  
OUT_1  
OUT_2  
OUT_3  
OUT_4  
OUT_5  
OUT_6  
2.8V to 5.0V single supply operation  
QT1080  
32-QFN  
45µA current typ @ 3V in 360ms LP mode  
AKS™ Adjacent Key Suppression  
OUT_7 32  
Spread spectrum bursts for superior noise rejection  
Sync pin for excellent LF noise rejection  
10ms ‘Fast mode’ for use in slider applications  
RoHS compliant packages: 32-QFN and 48-SSOP  
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APPLICATIONS  
! MP3 players  
! Mobile phones  
! PC peripherals  
! Television controls  
! Pointing devices  
! Remote controls  
QT1080 charge-transfer (’QT’) QTouch IC is a self-contained digital controller capable of detecting near-proximity or touch on  
up to eight electrodes. It allows electrodes to project independent sense fields through any dielectric such as glass or  
plastic. This capability coupled with its continuous self-calibration feature can lead to entirely new product concepts, adding  
high value to product designs. The devices are designed specifically for human interfaces, like control panels, appliances,  
gaming devices, lighting controls, or anywhere a mechanical switch or button may be found; they may also be used for some  
material sensing and control applications.  
Each of the channels operates independently of the others, and each can be tuned for a unique sensitivity level by simply  
changing a corresponding external Cs capacitor.  
AKS™ Adjacent Key Suppression (patent pending) suppresses touch from weaker responding keys and only allows a  
dominant key to detect; for example to solve the problem of large fingers on tightly spaced keys.  
Spread-spectrum burst technology provides superior noise rejection. These devices also have a SYNC/LP pin which allows for  
synchronization with additional similar parts and/or to an external source to suppress interference, or, a Low Power (LP) mode  
which conserves power.  
By using the charge-transfer principle, this device delivers a level of performance clearly superior to older technologies yet is  
highly cost-effective.  
This part is available in both 32-QFN and 48-SSOP RoHS compliant packages.  
AVAILABLE OPTIONS  
TA  
32-QFN  
48-SSOP  
-40ºC to +85ºC  
QT1080-ISG  
QT1080-IS48G  
LQ  
Copyright © 2004-2006 QRG Ltd  
QT1080 R11.06/0806  

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