Touch IC

1.GT7382H Overview

GT7382H is a new generation single-chip 10-point capacitive touch solution designed for tablets and notebooks, with up to 38 driving channels and 58 sensing channels for high-precision touch.
It supports capacitive active pen, which can realize the fine operation of pen writing on the capacitive screen, and can provide users with a better experience.

2. GT7382H Features

 Built-in capacitance detection circuit

• Pure hand touch scanning frequency: 100Hz
• Simultaneous scanning frequency of hand and pen: pen 240Hz, hand 60Hz
• Support active pen protocol: HPP2.2
• 10-point touch, real-time output of touch point coordinates
• Unified software version is suitable for capacitive screens of various sizes
• Single power supply
• Support online programming

 Capacitive touch sensor

• Channels: 38 (Tx channels)*58(Rx channels)
• Supports capacitive touch screen sizes: ≦11″
• Support independent button design
• Simultaneously supports ITO glass, ITO Film and Metal mesh
• Support AMOLED ONCELL
• Cover Lens thickness support: 0.55mm≦Glass≦1.1mm, (For details, please refer to Sensor Settings gauge specification)
• Built-in frequency hopping function

 Environmental adaptability

• Self-calibration during initialization
• Automatic drift compensation
• Operating temperature: -20℃ to +85℃; humidity: ≦95%RH

 Host interface

• Standard I2C、HID-I2C interface
• Works in slave mode
• Supports 1.8V to 3.3V host interface voltage

 Response time

• Green mode: <48ms
• Sleep mode: <200ms
• Initialization: <200ms

 Power supply voltage:

• Single supply: 2.8V /3.0V/3.3V

 Package: 192 pins, BGA 6X12X0.6， Ball pitch 0.45mm

 Tools that support application development:

• Module performance comprehensive testing tool
• Module mass production test tool
• Main control software driver development reference code and guidance documents

Application