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QT60326 参数 Datasheet PDF下载

QT60326图片预览
型号: QT60326
PDF下载: 下载PDF文件 查看货源
内容描述: 32和48个重点QMATRIX集成电路 [32 & 48 KEY QMATRIX ICs]
分类和应用:
文件页数/大小: 32 页 / 881 K
品牌: QUANTUM [ QUANTUM RESEARCH GROUP ]
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lQ
Advanced second generation QMatrix™ controller
Keys individually adjustable for sensitivity, response
time, and many other critical parameters
Panel thicknesses to 50mm through any dielectric
32 and 48 key versions
100% autocal for life - no in-field adjustments
SPI Slave and UART interfaces
Sleep mode with wake pin
Adjacent key suppression feature
Synchronous noise suppression pin
Spread-spectrum modulation: high noise immunity
Mix and match key sizes & shapes in one panel
Low overhead communications protocol
FMEA compliant design features
Negligible external component count
Extremely low cost per key
44-pin Pb-free TQFP package
QT60326, QT60486
32 & 48 K
EY
QM
ATRIX
™ IC
s
S_SYNC
/SS
DRDY
VREF
Y5A
Y5B
Vdd
LED
Y4A
Y4B
Vss
MOSI
MISO
SCK
/RST
Vdd
Vss
XT2
XT1
RX
TX
WS
1
2
3
4
5
6
7
8
9
44 43 42 41 40 39 38 37 36 35 34
33
32
31
30
29
28
27
26
25
Y3B
Y2B
Y1B
Y0B
Vdd
Vss
Vdd
X7
X6
X5
X4
QT60326
QT60486
TQFP-44
10
24
11
23
12 13 14 15 16 17 18 19 20 21 22
SMP
Y1A
Y2A
Y3A
Y0A
Vdd
X1
X0
Vss
X3
X2
APPLICATIONS -
Security keypanels
Industrial keyboards
Appliance controls
Outdoor keypads
ATM machines
Touch-screens
Automotive panels
Machine tools
These digital charge-transfer (“QT”) QMatrix™ ICs are designed to detect human touch on up 48 keys when used with a scanned,
passive X-Y matrix. They will project touch keys through almost any dielectric, e.g. glass, plastic, stone, ceramic, and even wood, up to
thicknesses of 5 cm or more. The touch areas are defined as simple 2-part interdigitated electrodes of conductive material, like copper
or screened silver or carbon deposited on the rear of a control panel. Key sizes, shapes and placement are almost entirely arbitrary;
sizes and shapes of keys can be mixed within a single panel of keys and can vary by a factor of 20:1 in surface area. The sensitivity of
each key can be set individually via simple functions over the SPI or UART port, for example via Quantum’s QmBtn program, or from a
host microcontroller. Key setups are stored in an onboard eeprom and do not need to be reloaded with each powerup.
These devices are designed specifically for appliances, electronic kiosks, security panels, portable instruments, machine tools, or
similar products that are subject to environmental influences or even vandalism. It can permit the construction of 100% sealed,
watertight control panels that are immune to humidity, temperature, dirt accumulation, or the physical deterioration of the panel surface
from abrasion, chemicals, or abuse. To this end the device contains Quantum-pioneered adaptive auto self-calibration, drift
compensation, and digital filtering algorithms that make the sensing function robust and survivable.
The parts can scan matrix touch keys over LCD panels or other displays when used with clear ITO electrodes arranged in a matrix.
They do not require 'chip on glass' or other exotic fabrication techniques, thus allowing the OEM to source the matrix from multiple
vendors. Materials such as such common PCB materials or flex circuits can be used.
External circuitry consists of a resonator and a few passive parts, all of which can fit into a 6.5 sq cm footprint (1 sq inch). Control and
data transfer is via either an SPI or UART port.
These devices make use of an important new variant of charge-transfer sensing, transverse charge-transfer, in a matrix format that
minimizes the number of required scan lines. Unlike older methods, it does not require one IC per key.
AVAILABLE OPTIONS
T
A
-40
0
C to +105
0
C
-40
0
C to +105
0
C
# Keys
32
48
Part Number
QT60326-AS-G
QT60486-AS-G
LQ
Copyright © 2003-2005 QRG Ltd
QT60486-AS R8.01/0105