CAP1298-1-SL 电容触摸传感器 Microchip

CAP1298-1-SL

8-Channel Capacitive Touch Sensor Controller with  Proximity Detection & Signal Guard

电容触摸传感器 8-Channel Capacitive Touch Sensor

General Description 

The CAP1298-1-SL is a multiple channel capacitive touch sensor controller. It contains eight (8) individual capacitive touch sensor inputs with programmable sensitivity for use in touch sensor applications. Each sensor input is calibrated to compensate for system parasitic capacitance and automatically recalibrated to compensate for gradual environmental changes.

Applications CAP1298-1-SL

• Desktop and Notebook PCs

• LCD Monitors

• Consumer Electronics

• Appliances

Features CAP1298-1-SL

• Eight (8) Capacitive Touch Sensor Inputs

- Programmable sensitivity

- Automatic recalibration

- Calibrates for parasitic capacitance

- Individual thresholds for each button

• Proximity Detection

• Signal Guard

- Isolates the proximity antenna from attenua-tion

- Reduces system noise sensitivity effects on inputs

• 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)