Datasheet > QT220-IG

QT220-IG

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
12页	326K
描述
2 KEY QTOUCH SENSOR IC

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中文翻译

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QT220-IG 数据手册

QT220

2 KEY QTOUCH™ SENSOR IC

Two independent charge-transfer (‘QT’) touch keys

Individual outputs per channel - active high

Projects prox fields through any dielectric

Sensitivity easily adjusted on a per-channel basis

100% autocal for life - no adjustments required

3.9V ~ 5.5V single supply operation

10s, 60s, infinite auto-recal timeout (strap options)

Sync pin for line sync to suppress noise

Spread spectrum operation

SNS1A

SNS1K

n.c.

SNS2K/OPT1

SNS2A

OPT2

n.c.

SPEED

n.c.

QT220

n.c.

20-SSOP

OUT1

OUT2

VSS

OSC

VDD

/RES

Pin options for auto recalibration timings

Extremely low cost per key

20-SSOP Pb-free package

SYNC/SS

n.c.

APPLICATIONS

PC Peripherals

Appliance controls

Security systems

Access systems

Pointing devices

Instrument panels

Gaming machines

Backlighted buttons

The QT220 charge-transfer (“QT’”) QTouch IC is a self-contained digital sensor IC capable of detecting near-proximity or touch

on 2 electrodes. It allows electrodes to project independent sense fields through any dielectric like glass, plastic, stone,

ceramic, and wood. It can also turn metal-bearing objects into intrinsic sensors, making them responsive to proximity or touch.

This capability coupled with its continuous self-calibration feature can lead to entirely new product concepts, adding high value

to product designs.

Each of the channels operates independently of the other, and each can be tuned for a unique sensitivity level by simply

changing its sample capacitor value. Two speeds are supported, one of which consumes only 90µA of typical current at 4V.

Unique among capacitance sensors, the device incorporates spread spectrum modulation for unsurpassed EMC compliance.

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.

These devices feature a SYNC pin which allows for synchronization with additional similar parts and/or to an external source to

suppress interference. This pin doubles as a drive pin for spread-spectrum modulation. Option pins are provided which allow

different timing and feature settings.

The RISC core of these devices use signal processing techniques pioneered by Quantum which are designed to survive

numerous real-world challenges, such as ‘stuck sensor’ conditions, component ageing, moisture films, and signal drift. By

using the charge transfer principle, these devices deliver a level of performance clearly superior to older technologies yet are

highly cost-effective.

AVAILABLE OPTIONS

T_A

SSOP-20

-40⁰C to +85⁰C

QT220-ISSG

QT220R R1.02/0905

12 3 4 5 6 7...12

中文翻译

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与QT220-IG相关器件

型号	品牌	获取价格	描述	数据表
QT220-ISSG	QUANTUM	获取价格	2 KEY QTOUCH SENSOR IC
QT22C-SERIES	ETC	获取价格	Peripheral IC
QT22HC-SERIES	ETC	获取价格	Peripheral IC
QT22T-SERIES	ETC	获取价格	Peripheral IC
QT240	QUANTUM	获取价格	4 KEY QTOUCH SENSOR IC
QT240-IG	QUANTUM	获取价格	4 KEY QTOUCH SENSOR IC
QT240-ISSG	QUANTUM	获取价格	4 KEY QTOUCH SENSOR IC
QT240-ISS-G	QUANTUM	获取价格	4 KEY QTOUCH SENSOR IC
QT24C-SERIES	ETC	获取价格	Peripheral IC
QT24E-SERIES	ETC	获取价格	Peripheral IC

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