파트넘버.co.kr QT60485 데이터시트 PDF


QT60485 반도체 회로 부품 판매점

(QT60325 - QT60645) QMatrix KEYPANEL SENSOR ICS



QUANTUM 로고
QUANTUM
QT60485 데이터시트, 핀배열, 회로
www.DataSheet4U.com
LQ
PRELIMINARY
QT60325, QT60485, QT60645
32, 48, 64 KEY QMatrixKEYPANEL SENSOR ICS
Advanced second generation QMatrix controllers
Up to 32, 48 or 64 touch keys through any dielectric
Panel thicknesses to 5 cm or more
100% autocal for life - no adjustments required
Keys individually adjustable for sensitivity, response time,
and many other critical parameters
Mix and match key sizes & shapes in one panel
Passive matrix - no components at the keys
Moisture suppression capable
AKS™ - Adjacent Key Suppression feature
Synchronous noise suppression
Sleep mode with wake pin
SPI Slave or Master/Slave interface to a host controller
Low overhead communications protocol
44-pin TQFP package
MOSI
MISO
SCLK
RST
Vdd
Vss
XTO
XTI
X0
X1
X2WS
44 43 42 41 40 39 38 37 36 35 34
1 33
2 32
3 31
4 QT60325 30
5 QT60485 29
6 QT60645 28
7 27
8
9
TQFP-44
26
25
10 24
11 23
12 13 14 15 16 17 18 19 20 21 22
CZ2
YS0
YS1
YS2
Aref
AGnd
AVdd
YC7
YC6
YC5
YC4
APPLICATIONS
Security keypanels
Industrial keyboards
Appliance controls
Outdoor keypads
ATM machines
Touch-screens
Automotive panels
Machine tools
The QT60325, QT60485, and QT60645 digital charge-transfer (“QT”) QMatrix™ ICs are designed to detect human touch on up to
32, 48, or 64 keys respectively using a scanned, passive X-Y matrix. It will project the 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 port, for example via Quantum’s QmBtn program. Key setups are stored in an onboard eeprom and do not need to be
reloaded with each power-up.
These ICs 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. They 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 devices contain Quantum-pioneered adaptive self-calibration, drift
compensation, and digital filtering algorithms that make the sensing function robust and survivable. The devices use short dwell
times and Quantum’s patent-pending AKS™ feature to permit operation in wet environments.
The parts use a passive key matrix, dramatically reducing cost over older technologies that require an ASIC for every key. The
key-matrix can be made of standard flex material (e.g. Silver on PET plastic) or ordinary PCB material to save cost.
External circuitry consists of an opamp, R2R ladder-DAC network, a common PLD, a FET switch, and a small number of resistors
and capacitors which can fit into a footprint of roughly 8 sq. cm (1.5 sq. in). Control and data transfer is via a SPI port which can
be configured in either a Slave or Master/Slave mode.
QT60xx5 ICs 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 to provide a high economy of scale.
lQ
AVAILABLE OPTIONS
TA
00C to +700C
00C to +700C
00C to +700C
-400C to +1050C
-400C to +1050C
-400C to +1050C
TQFP
QT60325-S
QT60485-S
QT60645-S
QT60325-AS
QT60485-AS
QT60645-AS
Copyright © 2001 Quantum Research Group Ltd
Pat Pend. R1.05/0802


QT60485 데이터시트, 핀배열, 회로
© Quantum Research Group Ltd.
Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Field Flows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Circuit Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Matrix Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Signal Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Negative Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Positive Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Drift Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5 Detection Recalibration Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.6 Detect Integrator (‘DI’) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.7 Positive Recalibration Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.8 Reference Guardbanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.9 Adjacent Key Suppression (AKS™) . . . . . . . . . . . . . . . . . . . . . . . 8
2.10 Full Recalibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.11 Boundary Error Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.12 Device Status & Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Circuit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Part Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Matrix Scan Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Signal Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4 'X' Electrode Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4.1 RFI From X Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4.2 Noise Coupling Into X lines . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 'Y' Gate Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5.1 RFI From Y Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5.2 Noise Coupling Into Y Lines . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.6 Burst Length & Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.7 Intra-Burst Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.8 Burst Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.9 PLD Circuit and Charge Sampler . . . . . . . . . . . . . . . . . . . . . . . 13
3.10 Opamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.11 Sample Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.12 R2R Resistor Ladder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.13 Water Film Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.14 Reset Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.15 Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.16 Startup / Calibration Times . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.17 Sleep_Wake / Noise Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.18 LED / Alert Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.19 CSR Drive Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.20 Oscilloscope Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.21 Power Supply and PCB Layout . . . . . . . . . . . . . . . . . . . . . . . . 15
3.22 ESD / Noise Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1 Serial Port specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2 Protocol Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3 SPI Slave-Only Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4 SPI Master-Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.5 Sensor Echo and Data Response . . . . . . . . . . . . . . . . . . . . . . . 19
4.6 Eeprom Corruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5 Commands & Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1 Direction Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
g 0x67 - Get Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
p 0x70 - Put Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Scope Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
s 0x73 - Specific Key Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
S 0x53 - All Keys Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
x 0x78 - Row Keys Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
y 0x79 - Column Keys Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3 Status Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
0 0x30 - Signal for Single Key . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1 0x31 - Delta Signal for Single Key . . . . . . . . . . . . . . . . . . . . . . . 21
2 0x32 - Reference Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3 0x33 - R2R Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4 0x34 - Cz State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5 0x35 - Detection Integrator Counts . . . . . . . . . . . . . . . . . . . . . . 22
6 0x36 - Eeprom Checksum . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7 0x37 - General Device Status . . . . . . . . . . . . . . . . . . . . . . . . . 22
<sp> 0x20 - Signal Levels for Group . . . . . . . . . . . . . . . . . . . . . . . 22
! 0x21 - Delta Signals for Group . . . . . . . . . . . . . . . . . . . . . . . . . 22
" 0x22 - Reference Levels for Group . . . . . . . . . . . . . . . . . . . . . . 22
# 0x23 - R2R Offset for Group . . . . . . . . . . . . . . . . . . . . . . . . . . 22
$ 0x24 - Charge Cancellation for Group . . . . . . . . . . . . . . . . . . . . 22
% 0x25 - Detect Integrator Counts for Group . . . . . . . . . . . . . . . . . 22
e 0x65 - Error Code for Selected Key . . . . . . . . . . . . . . . . . . . . . 23
k 0x6B - Reporting of First Touched Key . . . . . . . . . . . . . . . . . . . . 23
K 0x4B - Key Touch Reporting for Group . . . . . . . . . . . . . . . . . . . 24
5.4 Setup Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
^A 0x01 - Negative Detect Threshold . . . . . . . . . . . . . . . . . . . . . . . 24
^B 0x02 - Positive Detect Threshold . . . . . . . . . . . . . . . . . . . . . . . 24
^C 0x03 - Negative Threshold Hysteresis . . . . . . . . . . . . . . . . . . . . 25
^D 0x04 - Positive Threshold Hysteresis . . . . . . . . . . . . . . . . . . . . . 25
^E 0x05 - Dwell Time in Machine Cycles . . . . . . . . . . . . . . . . . . . . . 25
^G 0x07 - Burst Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
^H 0x08 - Negative Drift Compensation Rate . . . . . . . . . . . . . . . . . . 26
^I 0x09 - Positive Drift Compensation Rate . . . . . . . . . . . . . . . . . . . 26
^J 0x0A - Detect Integrator Limit . . . . . . . . . . . . . . . . . . . . . . . . . 26
^K 0x0B - Positive Recalibration Delay . . . . . . . . . . . . . . . . . . . . . 26
^L 0x0C - Negative Recalibration Delay . . . . . . . . . . . . . . . . . . . . . 26
^M 0x0D - Intra-Burst Pulse Spacing . . . . . . . . . . . . . . . . . . . . . . . 27
^N 0x0E - Positive Reference Error Band . . . . . . . . . . . . . . . . . . . . 27
^O 0x0F - Negative Reference Error Band . . . . . . . . . . . . . . . . . . . 27
^P 0x10 - Adjacent Key Suppression (‘AKS’) . . . . . . . . . . . . . . . . . . 27
5.5 Supervisory / System Functions . . . . . . . . . . . . . . . . . . . . . . . . 28
6 0x36 - Eeprom Checksum . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
D 0x44 - DAC Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
L 0x4C - Lock Reference Levels . . . . . . . . . . . . . . . . . . . . . . . . . 28
b 0x62 - Recalibrate Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
l 0x6C - Return Last Command Character . . . . . . . . . . . . . . . . . . . 28
r 0x72 - Reset Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
V 0x56 - Return Part Version . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
W 0x57 - Return Part Signature . . . . . . . . . . . . . . . . . . . . . . . . . 29
Z 0x5A - Enter Sleep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
^Q 0x11 - Data Rate Selection . . . . . . . . . . . . . . . . . . . . . . . . . . 29
^R 0x12 - Oscilloscope Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
^S 0x13 - Cs Clamp Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
^T 0x14 - Boundary Eqn Constant C1, MSB . . . . . . . . . . . . . . . . . . 30
^U 0x15 - Boundary Eqn Constant C1, LSB . . . . . . . . . . . . . . . . . . 30
^V 0x16 - Boundary Equation Constant C2 . . . . . . . . . . . . . . . . . . . 30
^W 0x17 - Noise Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.6 Function Summary Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.7 Timing Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6 PLD Source Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.1 Absolute Maximum Specifications . . . . . . . . . . . . . . . . . . . . . . 36
7.2 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . 36
7.3 DC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.4 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.5 Maximum Drdy Response Delays . . . . . . . . . . . . . . . . . . . . . . . 37
8 Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8.2 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
lQ
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QT60485 sensor

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상호 : 아이지 인터내셔날

전화번호 : 051-319-2877

[ 홈페이지 ]

IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈

( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )

전력반도체 문의 : 010-3582-2743



일반적인 전자부품 판매점


디바이스마트

IC114

엘레파츠

ICbanQ

Mouser Electronics

DigiKey Electronics

Element14


관련 데이터시트


QT60485

(QT60325 - QT60645) QMatrix KEYPANEL SENSOR ICS - QUANTUM



QT60485B

(QT60325B - QT60645B) QMatrix KEYPANEL SENSOR ICS - QUANTUM



QT60486

(QT60326 / QT60486) 32 & 48 KEY QMATRIX ICs - QUANTUM