Datasheet > QT411

QT411

更新时间： 2024-11-15 03:39:31

品牌	Logo	应用领域
昆腾 - QUANTUM		/
页数	文件大小	规格书
12页	255K
描述
QSLIDE TOUCH SLIDER IC

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QT411 数据手册

QT411-ISSG

QSLIDE™ TOUCH

SLIDER IC

QT401 QSlide™ enhancement - simplified calibration

Linear finger-touch capacitive slider control

Robust Charge-Transfer sensing method

Extremely simple circuit - no external active components

SPI slave-mode interface

VDD

SDO

GND

DRDY

DETECT

SDI

/SS

QT411

Self-calibration and drift compensation

SCLK

SNS3B

SNS3A

SNS2B

Spread-spectrum operation for optimal EMC compliance

2.5 - 5.5V single supply operation; very low power

Enhanced power supply & thermal drift rejection

14-pin TSSOP Pb-free package

Compatible with clear ITO over LCD construction

Inexpensive, simple 1-sided PCB construction possible

SNS1A

SNS1B

SNS2A

APPLICATIONS

y Personal electronics

y Appliance controls

y Climate controls

y Automotive controls

The QT411 QSlide™ IC is a new type of linear capacitive touch ‘slider’ sensor IC based on Quantum’s patented

charge-transfer (‘QT’) methods. This unique IC allows designers to create speed or volume controls, menu bars, and other

more exotic forms of human interface on the panel of an appliance or personal electronic device. Generally it can be used to

replace any form of linear control, through a completely sealed panel.

The device uses a simple, inexpensive resistive sensing element between four connection points. The sense element can be a

straight line or curved. The device can report a single rapid touch anywhere along the sense element, or, it can track a finger

moving along the sensing surface in real time.

This device uses three channels of synchronous sensing across a resistive element to determine touch position, using

mathematical analysis. A positional accuracy of 5% (or better) is relatively easy to achieve. The acquisitions are performed in a

burst mode which uses proprietary spread-spectrum modulation for superior noise immunity and ultra-low RF low emissions.

The output of the QT411 can also be used to create discrete controls buttons in a line, by interpreting sets of number ranges

as buttons. For example, the number range 0..19 can be button A, 30..49 button B, 60..79 button C etc. Continuous slider

action and number-range based discrete control points can be mixed on a single element, or, the element can be reinterpreted

differently at different times, for example when used adjacent to or on top of an LCD to act as a menu input device that

dynamically changes function in context. The device is compatible with ITO (Indium Tin Oxide) overlays on top of various

displays or simply to provide for a backlighting effect.

The QT411 is significantly more stable with temperature and other environmental influences than the QT401 which it is

designed to replace. In particular it can tolerate extreme temperature swings without false detection or shifts in reported touch

position. Also it does not require special calibration of the endpoints of the slider area. However, unlike the QT401 the QT411

does not have a proximity detection function.

QT411-ISSG R6.01/1005

12 3 4 5 6 7...12

中文翻译

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与QT411相关器件

型号	品牌	获取价格	描述	数据表
QT411-ISSG	QUANTUM	获取价格	QSLIDE TOUCH SLIDER IC
QT41E1-110MHZ	ETC	获取价格	Peripheral IC
QT41E1-40MHZ	ETC	获取价格	Peripheral IC
QT4C-SERIES	ETC	获取价格	Peripheral IC
QT4E-SERIES	ETC	获取价格	Peripheral IC
QT4FAUZ	SWITCH	获取价格	Circular Connector, 4 Contact(s), Zinc Alloy, Female, Solder Terminal, ROHS COMPLIANT
QT4FBAUZ	SWITCH	获取价格	Circular Connector, 4 Contact(s), Zinc Alloy, Female, Solder Terminal, ROHS COMPLIANT
QT4HC-SERIES	ETC	获取价格	Peripheral IC
QT4MAUZ	SWITCH	获取价格	Circular Connector, 4 Contact(s), Zinc Alloy, Male, Solder Terminal, ROHS COMPLIANT
QT4T-SERIES	ETC	获取价格	Peripheral IC

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