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PDF AS1120 Data sheet ( Hoja de datos )
| Número de pieza | AS1120 | |
| Descripción | 12 Channels Capacitive Touch Sensor IC | |
| Fabricantes | ASI | |
| Logotipo |  |
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AS1120
12 Channels Capacitive Touch Sensor IC
From Santa Clara, United States of America
Leading Performance: ESD HBM >8k Volts (Directly Applied to All IC Pins)
Operating Temperature up to >+950C
Features
Overview
• Analog and Digital – Mixed Mode IC
AS1120 is a 12 channels touch sensor IC capable of
• Support Capacitive Touch Screen Applications
detecting near-proximity or touch on 12 electrodes. It
Low Cost Single Layer ITO Touch Screen
allows electrodes to project independent sense field
• Support Capacitive Touch Key Applications
through any dielectric like glass, plastic, ceramic and
• Support Capacitive Proximity Sensing Applications
wood. It can accommodate a wide range of
• 8 and 12 independent electrode inputs
implementations due to its rich feature set.
• 8 and 12 individual outputs (with QFN package)
• Simultaneous multi-electrode sensing
• I2C compatible interface with interrupt IRQ_L
• Selectable I2C address
• Multiple devices in a system allow for up to 24 keys
• Build-in algorithm for ease of use
Sensitivity control per key
Auto calibration
Auto drift compensation
Noise filtering and rejection
Reduce BOM Cost
Internal oscillator – no external crystal or
oscillators
Internal LDO – no external LDO or regulator
No external tuning components
Direct drive LED (2mA to 5mA)
Environment Specification
Operation Temperature: -400C to +950C
Leading Performance in Capacitive Touch
Sensor IC
Implementations
• Touch Screen
• Touch Keys
• Touch Pads
• Switch Replacements
• Slider Replacements
Typical Applications
• Audio/Video
• PC peripherals
• Home appliance
• Gaming machine/console
• Security systems
• Instruments panels
• Access system
• Remote controls
• Lighting controls
• Single Layer ITO Glass
• MP3 and MP4
ESD HBM Comparision
(Directly Applied to All IC Pins)
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
ESD: HBM 8k volts (Directly applied to all IC pins)
Leading Performance in Capacitive Touch
Sensor IC
Electrical Specification
Operating voltage:
2.0V to 5.5V
Low-power operating mode:
7uA to 15uA
Package Types (Lead Free and Green Packages)
Package
Part No. Channel (Size mm)
Types
QFN40
AS1120
12 6 x 6 x 0.8
TSSOP24
AS1120
12 7.8 x 4.5 x 1.1
Standby mode:
5uA
Standby: wakes up to normal mode in less than 32ms
Advanced Sensor Integrations
Rev 1.4 - May 2010
3945 Freedom Cir, Suite 710
Santa Clara, CA 95054
1
1 page  
24-Pin TSSOP Part:
AS1120
12 Channels Capacitive Touch Sensor IC
From Santa Clara, United States of America
Figure 2. AS1120 24-Pin TSSOP Device
24-Pin TSSOP Pinout:
Table 2. Pin Descriptions
Pin Number
19, 18, 15, 14,
10, 9, 7, 6,
17, 13, 11, 8
5
20
23
22
1
2
16
21
12
4
3, 24
Name
Key1, Key2, Key3, Key4,
Key5, Key6, Key7, Key8,
Key9, Key10, Key 11, Key12
VCC
VSS
SCL
SDA
RST_L
IRQ_L
VCC_INT
SLA
R_EXT
Reserved
NC
Pin Description
Sense pin 1, Sense pin2, Sense pin3, Sense pin4,
Sense pin 5, Sense pin6, Sense pin7, Sense pin8,
Sense pin 9, Sense pin10, Sense pin11, Sense pin12
Power
Ground
SCL – I2C clock input
SDA – I2C open drain data I/O pin
Reset pin, active low
Interrupt Request Output, active low
Power Internal regulator
I2C slave address selection
External Reference Resistor
Connect to VSS
NC – Connect to VSS
Advanced Sensor Integrations
Rev 1.4 - May 2010
3945 Freedom Cir, Suite 710
Santa Clara, CA 95054
5
5 Page 
AS1120
12 Channels Capacitive Touch Sensor IC
From Santa Clara, United States of America
Package Dimensions
QFN40 PACKAGE OUTLINE DIMENTIONS
Advanced Sensor Integrations
Rev 1.4 - May 2010
3945 Freedom Cir, Suite 710
Santa Clara, CA 95054
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AS1120.PDF ] | |
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