AT42QT1110-AZ PDF даташит
Спецификация AT42QT1110-AZ изготовлена «ATMEL Corporation» и имеет функцию, называемую «QTouch 11-key Sensor IC». |
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Детали детали
Номер произв | AT42QT1110-AZ |
Описание | QTouch 11-key Sensor IC |
Производители | ATMEL Corporation |
логотип |
30 Pages
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Features
• Sensor Keys:
– Up to 11 QTouch™ channels
• Data Acquistion:
– Measurement of keys triggered either by a signal applied to the SYNC pin or at
regular intervals timed by the AT42QT1110's internal clock
– Keys measured sequentially for better performance, or in parallel groups for faster
operation
– Raw data for key touches can be read as a report over the SPI interface
• Discrete Outputs:
– Configurable “Detect” outputs indicating individual key touch (7-key mode)
• Device Setup:
– Device configuration can be stored in EEPROM
• Technology:
– Patented spread-spectrum charge-transfer (direct mode)
• Key Outline Sizes:
– 6 mm x 6 mm or larger (panel thickness dependent); widely different sizes and
shapes possible, including solid or ring shapes
• Key Spacings:
– 7 mm center to center or more (panel thickness dependent)
• Layers Required:
– One
• Electrode Materials:
– Etched copper, silver, carbon, Indium Tin Oxide (ITO)
• Electrode Substrates:
– PCB, FPCB, plastic films, glass
• Panel Materials:
– Plastic, glass, composites, painted surfaces (low particle density metallic paints
possible)
• Panel Thickness:
– Up to 10 mm glass, 5 mm plastic (electrode size dependent)
• Key Sensitivity:
– Individually settable via simple commands over serial interface
• Adjacent Key Suppression® (AKS™)
– Patented AKS technology to enable accurate key detection
• Interface:
– Full-duplex SPI slave mode (1.5 MHz), “change” pin, discrete detection outputs
• Moisture Tolerance Good
• Power:
– 3V ~ 5.5V
• Package:
– 32-pin 5 x 5 mm MLF RoHS compliant
– 32-pin 7 x 7 mm TQFP RoHS compliant
• Signal Processing:
– Self-calibration, auto drift compensation, noise filtering, AKS technology
• Applications:
– Specific package qualified for automotive applications, such as radio, keyless
entry, electric windows and sat nav
QTouch™ 11-key
Sensor IC
AT42QT1110-MZ
AT42QT1110-AZ
9570I–AT42–03/10
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1. Pinout and Schematic
1.1 Pinout Configuration
SNS0K
SNS1
SNS1K
VDD
VSS
SNS2K
SNS2
SNS3
132
31
30
29
28
27
26
25
24
2 23
3 22
4
5
QQT11100
21
20
6 19
7 18
8 17
9 10 11 12 13 14 15 16
SNS8/DETECT2
SNS7/DETECT1
SNS7K/DETECT0
VSS
SNS6
SNS6K
VDD
SCK
2 AT42QT1110-MZ/AT42QT1110-AZ
9570I–AT42–03/10
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AT42QT1110-MZ/AT42QT1110-AZ
1.2 Pin Descriptions
Table 1-1.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
Pin Listing
Name
SNS0K
SNS1
SNS1K
Vdd
Vss
SNS2K
SNS2
SNS3
SNS3K
SNS4
SNS4K
SNS5
SNS5K
14 SS
15 MOSI
16 MISO
17 SCK
18 Vdd
19 SNS6K
20 SNS6
21 Vss
22 SNS7K/DETECT0
23 SNS7/DETECT1
24 SNS8/DETECT2
25 SNS8K/DETECT3
26 SNS9/DETECT4
27 SNS9K/DETECT5
28 CHANGE
29 RESET
30 SNS10/DETECT6
31 SNS10K/SYNC
32 SNS0
I Input only
O Output only, push-pull
9570I–AT42–03/10
Type
I/O
I/O
I/O
P
P
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Comments
Sense Pin
Sense Pin
Sense Pin
Power
Supply Ground
Sense Pin
Sense Pin
Sense Pin
Sense Pin
Sense Pin
Sense Pin
Sense Pin
Sense Pin
I Enable SPI
I SPI Data In
O SPI Data Out
I SPI Clock
P Power
I/O Sense Pin
I/O Sense Pin
P Supply Ground
I/O Sense Pin/Key Status Indicator
I/O Sense Pin/Key Status Indicator
I/O Sense Pin / Key Status Indicator
I/O Sense Pin / Key Status Indicator
I/O Sense Pin / Key Status Indicator
I/O Sense Pin / Key Status Indicator
OD Touch Event Indicator
I Reset
I/O Sense Pin / Key Status Indicator
I/O Sense Pin / Synchronization Input
I/O Sense Pin
If Unused, Connect To...
Leave open
Leave open
Leave open
–
–
Leave open
Leave open
Leave open
Leave open
Leave open
Leave open
Leave open
Leave open
Vss via 100 k resistor to enable SPI
Vdd via 100 k resistor to disable SPI
Leave open
Leave open
Leave open
–
Leave open
Leave open
–
Leave open
Leave open
Leave open
Leave open
Leave open
Leave open
Leave open
Vdd
Leave open
Vdd or Vss via 100 k resistor
Leave open
I/O Input and output
OD Open drain output P Ground or power
3
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Номер в каталоге | Описание | Производители |
AT42QT1110-AU | QTouch 11-key Sensor IC | ATMEL Corporation |
AT42QT1110-AZ | QTouch 11-key Sensor IC | ATMEL Corporation |
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