lQ
QT60160, QT60240
16
AND
24 K
EY
QM
ATRIX
™ T
OUCH
S
ENSOR
IC
s
SCL
/RST
Y0A
Y2B
SMP
SDA
Y1A
Y2A
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
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
24
23
Y1B
Y0B
A0
VSS
VDD
A1
VDD
X5
QT60240
QT60160
MLF-32
22
21
20
19
18
17
9 10 11 12 13 14 15 16
X1
X0
S_SYNC
VREF
LATCH
X4
X3
X2
AT A GLANCE
Number of keys:
Technology:
Key outline sizes:
Key spacings:
Electrode design:
Layers required:
Panel materials:
Adjacent Metal:
Panel thickness:
Key sensitivity:
Interface:
Power:
Package:
Signal processing:
Applications:
1 to 16 (QT60160), or 1 to 24 (QT60240)
Patented spread-spectrum charge-transfer (transverse mode)
6mm x 6mm or larger (panel thickness dependent); widely different sizes and shapes possible
8mm or wider, center to center (panel thickness dependent)
Two-part electrode shapes (drive-receive); wide variety of possible layouts
One layer (with jumpers), two layers (no jumpers)
Plastic, glass, composites, painted surfaces (low particle density metallic paints possible)
Compatible with grounded metal immediately next to keys
Up to 50mm glass, 20mm plastic (key size dependent)
Individually settable via simple commands over serial interface
I
2
C slave mode (100kHz), or parallel output via external shift registers
1.8V ~ 5.5V, 40µA (16 keys at 1.8V, 2s Low Power mode). Guaranteed to 1.62V.
32-pin 5 x 5mm MLF RoHS compliant
Self-calibration, auto drift compensation, noise filtering, Adjacent Key Suppression
Mobile phones, remote controls, domestic appliances, PC peripherals, automotive
TM
Electrode materials:
PCB, FPCB, silver or carbon on film, ITO on film, Orgacon
†
ink on film
Moisture tolerance:
Best in class.
†
Orgacon is a registered tra demark of Agfa-Gevaert N.V
AVAILABLE OPTIONS
Part Number
QT60160-ISG
QT60240-ISG
Keys
16
24
T
A
-40 C to +85
0
C
-40
0
C to +85
0
C
0
LQ
Copyright © 2006 QRG Ltd
QT60240-ISG R8.06/0906
QUANTUM [ QUANTUM RESEARCH GROUP ]
