Touch IC

1. Touch IC GT9110P Overview

GT9110P is a new-generation single-chip 10-point capacitive touch solution designed for

tablet computers, with 42 transmitter electrodes and 30 receiver electrodes to provide superior

touch accuracy, which is designed for high-performance, low-power touch controller designed for capacitive touch screen panels.

Equipped with a capacitive stylus controller GT930 and a piezo-resistive pressure sensor,

GT9110P supports fine tip active stylus input, which greatly enriches the user experience

2. Touch IC GT9110P Product Features

 Built-in capacitive sensing circuit and high-performance MPU

•  Report rate: 100Hz
• Supports 10 concurrent touches and outputs touch coordinates in real time
• Uniformed software applicable to capacitive touch screens of various sizes
• Single power supply, internal 1.8V LDO
• Flash embedded; In-system reprogrammable

 Capacitive touch sensor

•  Channels: 42 (Tx channels) x 30 (Rx channels)
• Supports capacitive touch screen sizes: 8.9″ to 12.1″(diagonal)
• Supports both ITO glass and ITO Film
• Cover Lens thickness supported: 0.55mm ≦ Glass ≦ 2mm, 0.5mm ≦PMMA ≦ 1.2mm,
• Adaptive frequency hopping

 Environmental adaptability

• Self-calibration during initialization
• Automatic drift compensation
• Operating temperature: -40℃ to +85℃; humidity: ≦95%RH
• Storage temperature: -60℃ to +125℃; humidity: ≦95%RH

 Host interface

• Standard 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 to 3.3V

 Power supply ripple:

• Vpp≦50mV

 Package: 88 pins, 10m * 10mm * 0.8mm, QFN_0.4P

 Tools that supports application development:

• Touch panel module parameter detector and generator
• Touch panel performance tester
• Mass production test kit
• Reference driver code and documentary guide for host software development

3.  Application

This touch controller can be used for smart devices such as mobile phones, tablets, laptops, POS

IoT devices such as wearables, hearables, smart home.

Automobile screens, factory-installed products and aftermarket installed products

Industrial devices, etc