Microchip CAP1203 Bruksanvisning
Microchip
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CAP1203
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2013-2015 Microchip Technology Inc. DS00001572B-page 1
General Description
The CAP1203 is a multiple channel capacitive touch
sensor controller. It contains individual capacitive touch
sensor inputs with programmable sensitivity for use in
touch sensor applications. Each sensor input is cali-
brated to compensate for system parasitic capacitance
and automatically recalibrated to compensate for grad-
ual environmental changes.
The CAP1203 includes Multiple Pattern Touch recogni-
tion that allows the user to select a specific set of but-
tons to be touched simultaneously. If this pattern is
detected, a status bit is set and an interrupt is gener-
ated.
The CAP1203 has Active and Standby states, each
with its own sensor input configuration controls. Power
consumption in the Standby state is dependent on the
number of sensor inputs enabled as well as averaging,
sampling time, and cycle time. Deep Sleep is the low-
est power state available, drawing 5µA (typical) of cur-
rent. In this state, no sensor inputs are active, and
communications will wake the device.
Applications
• Desktop and Notebook PCs
• LCD Monitors
• Consumer Electronics
• Appliances
Features
• Three (3) Capacitive Touch Sensor Inputs
- Programmable sensitivity
- Automatic recalibration
- Calibrates for parasitic capacitance
- Individual thresholds for each button
• Multiple Button Pattern Detection
• Power Button Support
• Press and Hold Feature for Volume-like Applica-
tions
• 3.3V or 5V Supply
• Analog Filtering for System Noise Sources
• RF Detection and Avoidance Filters
• Digital EMI Blocker
• 8kV ESD Rating on All Pins (HBM)
• Low Power Operation
- 5µA quiescent current in Deep Sleep
- 50µA quiescent current in Standby (1 sensor
input monitored)
- Samples one or more channels in Standby
• SMBus / I2C Compliant Communication Interface
• Available in an 8-pin 2mm x 3mm TDFN RoHS
compliant package
• Available in an 8-pin SOIC RoHS compliant pack-
age
CAP1203
3-Channel Capacitive Touch Sensor
Produktspecifikationer
| Varumärke: | Microchip |
| Kategori: | Inte kategoriserad |
| Modell: | CAP1203 |
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