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QT1080

更新时间： 2024-09-23 00:04:23

品牌	Logo	应用领域
QT		/
页数	文件大小	规格书
14页	277K
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QT1080 数据手册

QT1080

8 KEY QTOUCH™ SENSOR IC

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

2.8V ~ 5.0V single supply operation

45µA current typ @ 3V in 360ms LP mode

AKS™ Adjacent Key Suppression

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

24 23 22

20 19 18 17

SNS5

SNS4K

SNS4

SNS3K

SNS3

SNS2K

SNS2

SN1K

OUT_0

OUT_1

OUT_2

OUT_3

OUT_4

OUT_5

OUT_6

QT1080

32-QFN

OUT_7 32

APPLICATIONS

MP3 players

PC peripherals

Pointing devices

Remote controls

Mobile phones

Television 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 allows only 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, an LP (low power) 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

T_A

32-QFN

48-SSOP

-40ºC to +85ºC

QT1080-ISG

QT1080-IS48G

QT1080 R11.04/0206

12 3 4 5 6 7...14

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