QT1106 Datasheet, PDF (1/20 Pages) Quantum Research Group – QWHEEL/QSLIDE/QTOUCH IC

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QT1106-ISG
QWHEEL™/QSLIDE™/QTOUCH™ IC
" Patented charge-transfer (‘QT’) design
" Wheel or Slider plus seven extra keys
" QMagic™ proximity effect for ‘approach on’ function
" Fast thermal drift tracking
" 2.8V ~ 5.0V single supply operation
" 100% autocal for life - no adjustments required
" SPI five-wire interface
" Fully debounced results
" Patented AKS™ Adjacent Key Suppression
" Spread-spectrum bursts for superior noise rejection
" RoHS compliant 32-QFN package
24 23 22 21 20 19 18 17
MOSI 25
MISO 26
SNSA 27
SNSA 28
SNSA 29
SNSA1 30
SNSA2 31
SNSA3 32
QT1106
32-QFN
16 SNSB2
15 SNSB3
14
13 SNSB
12 SNSB
11 SNSB
10 SNSB
9 SNSB5
1 234 56 78
APPLICATIONS
! MP3 players
! Mobile phones
! PC peripherals
! Appliance controls
! Remote controls
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. 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.
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.
The device is designed specifically for human interfaces, like control panels, appliances, gaming devices, lighting controls,
remote controls, or anywhere a mechanical wheel, slider, or switch may be found.
Patented AKS™ Adjacent Key Suppression 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 or buttons in the middle of a wheel.
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. The device also has a Sync mode
which enables synchronization with additional similar parts and/or to an external source to suppress interference, and low
power modes which conserve power.
AVAILABLE OPTIONS
TA
-40⁰C to +85⁰C
32-QFN
QT1106-ISG
LQ
CCopyright © 2006 QRG Ltd
QT1106-ISG R8I.05/0906