描述 Description

The capacitive touch pad sensor is covered with a plastic case.? The typical thickness of the plastic is less than 2.0mm.? It can also auto calibrate the parameters for a wide range of capacitance on the touch pad sensor (5pF~15pF).? The system controller converts finger position data to button presses, depending on finger location and human interface context.

特性 Features

Operating voltage: 3.0V ~ 5.5V, Ripple < 100mVpp.
Power-on reset time: Stable time for operating < 400ms, the touch pad will send ¨Packet Hello〃 after initialization.
Interface features: Serial Peripheral Interface (SPI- Slave) / I2C-Slave / I/O Mode.
Application mode: Support 32 buttons
Support buttons & wheel scroll as the same time
Support buttons & scroll bars as the same time

Sensitivity: Sensitivity can be adjusted for different thickness of the plastic cover.