파트넘버.co.kr QT140 데이터시트 PDF


QT140 반도체 회로 부품 판매점

(QT140 / QT150) 4 AND 5 KEY QTOUCH SENSOR ICs



QUANTUM 로고
QUANTUM
QT140 데이터시트, 핀배열, 회로
www.DataSheet4U.com
lQ
QProx™ QT140 / QT150
4 AND 5 KEY QTOUCHSENSOR ICs
Completely independent QT touch circuits
Individual logic outputs per channel (open drain)
Projects prox fields through any dielectric
Only one external capacitor required per channel
Sensitivity easily adjusted on a per-channel basis
100% autocal for life - no adjustments required
3~5.5V, 5mA single supply operation
Toggle mode for on/off control (strap option)
10s, 60s, infinite auto-recal timeout (strap options)
AKS™ Adjacent Key Suppression (pin option)
Sync pin for multi-chip sync or line sync
Less expensive per key than many mechanical switches
Eval board with backlighting - p/n E160
SSOP
DIP
Vss
Vss
Vdd
Vdd
SNS1A
SNS1B
SNS2A
SNS2B
SNS3A
SNS3B
SNS4A
SNS4B
SNS5A
Vss
/RST
OSC_I
OSC_O
OPT2
OPT1
SYNC
OUT5
OUT4
OUT3
OUT2
OUT1
AKS
OC
SNS5B
Vdd
Vdd
Vss
Vss
Vss
SNS1A
SNS1B
SNS2A
SNS2B
SNS3A
SNS3B
SNS4A
SNS4B
SNS5A
/RST
OSC_I
OSC_O
OPT2
OPT1
SYNC
OUT5
OUT4
OUT3
OUT2
OUT1
AKS
OC
SNS5B
QT150 shown - NOTE: Pinouts are not the same!
APPLICATIONS
PC Peripherals
Backlighted buttons
Appliance controls
Security systems
Access systems
Pointing devices
Instrument panels
Gaming machines
QT140 / QT150 charge-transfer (“QT’”) QTouch ICs are self-contained digital controllers capable of detecting near-proximity or
touch on 4 or 5 electrodes. They allow electrodes to project independent sense fields through any dielectric like glass, plastic,
stone, ceramic, and wood. They can also turn metal-bearing objects into intrinsic sensors, making them responsive to proximity
or touch. This capability coupled with their continuous self-calibration feature can lead to entirely new product concepts, adding
high value to product designs.
Each of the channels operates independently of the others, and each can be tuned for a unique sensitivity level by simply
changing its sample capacitor value.
The devices are designed specifically for human interfaces, like control panels, appliances, gaming devices, lighting controls,
or anywhere a mechanical switch or button may be found; they may also be used for some material sensing and control
applications.
These devices require only a common inexpensive capacitor per sensing channel in order to function. They also offer patent
pending AKS™ Adjacent Key Suppression which suppresses touch from weaker responding keys and allows only a dominant
key to detect, for example to solve the problem of large fingers on tightly spaced keys.
These devices also have a SYNC I/O pin which allows for synchronization with additional similar parts and/or to an external to
suppress interference.
The RISC core of these devices use signal processing techniques pioneered by Quantum which are designed to survive
numerous real-world challenges, such as ‘stuck sensor’ conditions, component ageing, moisture films, and signal drift.
By using the charge transfer principle, these devices deliver a level of performance clearly superior to older technologies yet
are highly cost-effective.
TA
00C to +700C
-400C to +1050C
00C to +700C
-400C to +1050C
LQ
AVAILABLE OPTIONS
SSOP-28
-
QT140-AS
-
QT150-AS
DIP-28
QT140-D
-
QT150-D
-
Copyright © 2002 QRG Ltd
QT140/150 1.01/1102


QT140 데이터시트, 핀배열, 회로
Table 1-1 Pin Listing
QT140 / QT150 SSOP-28
Pin Name Description
1 Vss
Negative power (Ground)
2 Vss
Negative power (Ground)
3 Vdd
Positive power
4 Vdd
Positive power
5 SNS1A
Sense pin (to Cs1, electrode)
6 SNS1B
Sense pin (to Cs1)
7 SNS2A
Sense pin (to Cs2, electrode)
8 SNS2B
Sense pin (to Cs2)
9 SNS3A
Sense pin (to Cs3, electrode)
10 SNS3B
Sense pin (to Cs3)
11 SNS4A
Sense pin (to Cs4, electrode)
12 SNS4B
Sense pin (to Cs4)
13 NC/SNS5A Sense pin (to Cs5, electrode) n/c on QT140
14 Vss
Supply negative rail (ground)
15 NC/SNS5B Sense pin (to Cs5) n/c on QT140
16 OC
Output Option (input pin; 1= open drain)
17 AKS
Adjacent Key Suppression Opt. (input; 1=AKS)
18 OUT1
Channel 1 output, o-d or p-p
19 OUT2
Channel 2 output, o-d or p-p
20 OUT3
Channel 3 output, o-d or p-p
21 OUT4
Channel 4 output, o-d or p-p
22 NC/OUT5 Channel 5 output, o-d or p-p (n/c on QT140)
23 SYNC
Synchronization pin (I/O pin - pull high with 10K)
24 OPT1
Option Mode (Input pin - see Table 2-1)
25 OPT2
Option Mode (Input pin - see Table 2-1)
26 OSC_O
27 OSC_I
Oscillator output
Oscillator input
28 /RST
Reset pin (active low input)
QT140 / QT150 DIP-28
Pin Name Description
1 Vdd
Positive power
2 Vdd
Positive power
3 Vss
Negative power (Ground)
4 Vss
Negative power (Ground)
5 Vss
Negative power (Ground)
6 SNS1A
Sense pin (to Cs1, electrode)
7 SNS1B
Sense pin (to Cs1)
8 SNS2A
Sense pin (to Cs2, electrode)
9 SNS2B
Sense pin (to Cs2)
10 SNS3A
Sense pin (to Cs3, electrode)
11 SNS3B
Sense pin (to Cs3)
12 SNS4A
Sense pin (to Cs4, electrode)
13 SNS4B
Sense pin (to Cs4)
14 NC/SNS5A Sense pin (to Cs5, electrode) n/c on QT140
15 NC/SNS5B Sense pin (to Cs5) n/c on QT140
16 OC
Output Option (input pin; 1= open drain)
17 AKS
Adjacent Key Suppression Opt. (input ; 1=AKS)
18 OUT1
Channel 1 output, o-d or p-p
19 OUT2
Channel 2 output, o-d or p-p
20 OUT3
Channel 3 output, o-d or p-p
21 OUT4
Channel 4 output, o-d or p-p
22 NC/OUT5 Channel 5 output, o-d or p-p (n/c on QT140)
23 SYNC
Synchronization pin (I/O pin - pull high with 10K)
24 OPT1
Option Mode (Input pin - see Table 2-1)
25 OPT2
Option Mode (Input pin - see Table 2-1)
26 OSC_O
27 OSC_I
Oscillator output
Oscillator input
28 /RST
Reset pin (active low input)
1 - OVERVIEW
QT140/150 devices are burst mode digital charge-transfer
(QT) sensor ICs designed specifically for touch controls; they
include all hardware and signal processing functions
necessary to provide stable sensing under a wide variety of
conditions. Only a single low cost capacitor per channel is
required for operation.
Figures 1-6 and 1-7 show basic circuits for these devices.
See Table 1-1 for device pin listings.
Vss
Vss
Vdd
Vdd
SNS1A
SNS1B
SNS2A
SNS2B
SNS3A
SNS3B
SNS4A
SNS4B
NC
Vss
SSOP
/RST
OSC_I
OSC_O
OPT2
OPT1
SYNC
NC
OUT4
OUT3
OUT2
OUT1
AKS
OC
NC
DIP
Vdd
Vdd
Vss
Vss
Vss
SNS1A
SNS1B
SNS2A
SNS2B
SNS3A
SNS3B
SNS4A
SNS4B
NC
/RST
OSC_I
OSC_O
OPT2
OPT1
SYNC
NC
OUT4
OUT3
OUT2
OUT1
AKS
OC
NC
Fig 1-1 QT140 Pinouts
NOTE: SSOP / DIP Pinouts are not the same!
The DIP and SOIC pinouts are not the same and serious
damage can occur if a part is miswired.
1.1 BASIC OPERATION
The devices employ bursts of charge-transfer cycles to
acquire signals. Burst mode permits low power operation,
dramatically reduces RF emissions, lowers susceptibility to
RF fields, and yet permits excellent speed. Internally, signals
are digitally processed to reject impulse noise using a
'consensus' filter that requires three consecutive
confirmations of detection. Each channel is measured in
sequence starting with Channel 1.
The QT switches and charge measurement hardware
functions are all internal to the device. A single-slope
switched capacitor ADC includes the QT charge and transfer
switches in a configuration that provides direct ADC
conversion; an external Cs capacitor accumulates the charge
from sense-plate Cx, which is then measured.
Larger values of Cx cause the charge transferred into Cs to
rise more rapidly, reducing available resolution; as a
minimum resolution is required for proper operation, this can
result in dramatically reduced gain. Conversely, larger values
of Cs reduce the rise of differential voltage across it,
increasing available resolution by permitting longer QT
bursts. The value of Cs can thus be increased to allow larger
values of Cx to be tolerated. The IC is responsive to both Cx
and Cs, and changes in Cs can result in substantial changes
in sensor gain.
lQ
2 QT140/150 1.01/1102




PDF 파일 내의 페이지 : 총 14 페이지

제조업체: QUANTUM

( quantum )

QT140 sensor

데이터시트 다운로드
:

[ QT140.PDF ]

[ QT140 다른 제조사 검색 ]




국내 전력반도체 판매점


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


QT140

(QT140 / QT150) 4 AND 5 KEY QTOUCH SENSOR ICs - QUANTUM