QT60160-ATG Datasheet, PDF (1/26 Pages) Quantum Research Group – 16 AND 24 KEY QMATRIX TOUCH SENSOR ICs

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QT60160, QT60240
16 AND 24 KEY QMATRIX™ TOUCH SENSOR ICs
These devices are designed for low cost mobile and consumer electronics
applications.
QMatrix™ technology employs transverse charge-transfer sensing electrode
designs which can be made very compact and are easily wired. Charge is
forced from an emitting electrode into the overlying panel dielectric, and then
collected on a receiver electrode which directs the charge into a sampling
capacitor which is then converted directly to digital form without the use of
amplifiers.
Keys are configured in a matrix format that minimizes the number of required
scan lines and device pins. The key electrodes can be designed into a
conventional Printed Circuit Board (PCB) or Flexible Printed Circuit Board
(FPCB) as a copper pattern, or as printed conductive ink on plastic film.
M_SYNC
CHANGE
VSS
VDD
VSS
VDD
X6
X7
32 31 30 29 28 27 26 25
1
24
2
23
3 QT60240 22
4 QT60160 21
5
20
6
MLF-32 19
7
18
8
17
9 10 11 12 13 14 15 16
Y1B
Y0B
A0
VSS
VDD
A1
VDD
X5
AT A GLANCE
Number of keys: 1 to 16 (QT60160), or 1 to 24 (QT60240)
Technology:
Patented spread-spectrum charge-transfer (transverse mode)
Key outline sizes: 6mm x 6mm or larger (panel thickness dependent); widely different sizes and shapes possible
Key spacings:
8mm or wider, center to center (panel thickness dependent)
Electrode design: Two-part electrode shapes (drive-receive); wide variety of possible layouts
Layers required: One layer (with jumpers), two layers (no jumpers)
Electrode materials: PCB, FPCB, silver or carbon on film, ITO on film, Orgacon ^† ink on film
Panel materials: Plastic, glass, composites, painted surfaces (low particle density metallic paints possible)
Adjacent Metal:
Compatible with grounded metal immediately next to keys
Panel thickness: Up to 50mm glass, 20mm plastic (key size dependent)
Key sensitivity:
Individually settable via simple commands over serial interface
Interface:
I²C slave mode (100kHz), or parallel output via external shift registers
Moisture tolerance: Best in class.
Power:
1.8V ~ 5.5V, 40µA (16 keys at 1.8V, 2s Low Power mode). Guaranteed to 1.62V.
Package:
32-pin 5 x 5mm MLF RoHS compliant
Signal processing: Self-calibration, auto drift compensation, noise filtering, Adjacent Key Suppression ^TM
Applications:
Mobile phones, remote controls, domestic appliances, PC peripherals, automotive
†_{Orgacon is a registered tra demark of Agfa-Gevaert N.V}
LQ
Part Number
QT60160-ISG
QT60240-ISG
AVAILABLE OPTIONS
Keys
16
24
TA
-40⁰C to +85⁰C
-40⁰C to +85⁰C
Copyright © 2006 QRG Ltd
QT60240-ISG R8.06/0906