Catalogue - QT1106 - Quantum Research Group

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Touch screen, Capacitive touch screen, Converter, Analog converter, Development kit

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QT1106

QWheel™/QSlide™/QTouch™ IC

QUANTUM

W RESEARCH GROUP

This datasheet is applicable to all revision 81 chips

QT1106 charge-transfer ('QT') QTouch^TM IC is a self-contained, patented charge-transfer capacitive controller capable of detecting near-proximity or touch on up to seven electrodes and a wheel/slider. It allows electrodes to project sense fields through any dielectric such as glass or plastic. These electrodes are laid out as a scroller (e.g. a wheel or slider) plus seven additional independent keys.

Each key channel can be tuned for a unique sensitivity level by simply changing a corresponding external Cs capacitor, whereas the wheel/slider's sensitivity can be changed dynamically through SPI commands. One key ca even be optimized for operation as a hand proximity sensor by increasing th proximity sensitivity for the corresponding channel.

The wheel/slider uses a simple, inexpensive sensing element between three connection points. The QT1106 can report a single rapid touch anywhere along the sense elements, or it can track a finger moving along the wheel/slider's surface in real time.

By using the charge-transfer principle, this device delivers a level of performance clearly superior to older technologies yet is highly cost-effective. Spread-spectrum burst technology provides superior noise rejection.

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QT1106 32-QFN

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at a glance

Number of keys: Technology: Key outline sizes: Key spacings: Key design: Wheel size: Slider size:

Wheel electrode design:

Slider electrode design:

Layers required:

Substrates:

Electrode materials:

Panel materials:

Adjacent Metal:

Key panel thickness:

Wheel/Slider panel thickness:

Key sensitivity:

Outputs:

Moisture tolerance: Power:

Package:

Signal processing:

Applications:

Patents:

0 to 7, one slider or one wheel

Patented spread-spectrum charge-transfer

5mm x 5mm or larger (panel thickness dependent); widely different sizes and shapes possible

6mm or wider, center to center (panel thickness, human factors dependent)

Single solid or ring shaped electrodes; wide variety of possible layouts

Typically 30mm- 50mm diameter, resistored wheel up to 80mm diameter, typical width 12mm

Typically 50mm-100mm length, typical width 12mm

Resistorless/resistored design

Resistorless/resistored design (can be an arc or other irregular shape)

One layer substrate; electrodes and components can be on same side

FR-4, low cost CEM-1 or FR-2 PCB materials; polyamide FPCB; PET films, glass

Copper, silver, carbon, ITO, virtually anything electrically conductive

Plastic, glass, composites, painted surfaces (nonconductive paints)

Compatible with grounded metal immediately next to keys

Up to 15mm glass, 10mm plastic (key size dependent)

Up to 4mm glass, 3mm plastic

Adjustable via change in sampling capacitor (Cs) value

SPI

Good

2.8V ~ 5.0V

32-pin 5 x 5mm QFN RoHS compliant

Self-calibration, auto drift compensation, noise filtering, patented Adjacent Key Suppression™ Portable devices, domestic appliances and A/V gear, PC peripherals, office equipment AKS™ (patented Adjacent Key Suppression) QTouch™ (patented Charge-transfer method)

QWheel™/QSlide™ (patented Charge-transfer method) (patent-pending QWheel/QSlide sensing configuration)

AVAILABLE OPTIONS


	Ta	32-QFN
	-40⁰C to +85⁰C	QT1106-ISG

QUANTUM

W RESEARCH GROUP

QT1106 - Quantum Research Group - #1

Touch screen, Capacitive touch screen, Converter, Analog converter, Development kit