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稳定的触控感应方法
支持单指应用
价格与电阻式相同
又有电容式的优势
Tango R32性能参数如下：
Tango R32
2 Finger Capacitive Touch Sensor Controller
Tango R32 is a fully configurable touchscreen controller combining the proven Pixcir sensing proprietary technology and a powerful 32-bit RISC MCU. The device can accommodate panels of up to 2.8" and side buttons simultaneously.
Key features include:
■True multi-touch for 2 fingers
■High touch scan rate
■High Accuracy and Linearity
■Lowest power consumption
■Grip suppression
■Palm detection (lock function)
■High SNR (200:1)
■I2C host interface
| General Information | |
| Touch screen size | 2.8" |
| Number of electrodes | 32 |
| Touch functionality | True touch 2 Points |
| Cover lense thickness | Glass: recommended 0.7mm |
| Stylus | Works with conductive passive stylus |
| Touch response time | 70ms (from idle to active) |
| Supported ITO structures |
OGS(One glass solution) |
| IC Architecture | |
| Sensor and MCU | Integrated 32bit MCU 64KB Flash 3KB RAM |
| Host interface | I2C-compatible slave mode 400kHz |
| Package type and dimensions | QFN40 5mm x 5mm x 0.75mm |
| Electrical Characteristics | |
| AVDD | Interface: 1.8V~3.6V Analog: 2.5V~3.6V |
| Power consumption | 1 finger: 13 mW 2 fingers: 15 mW |
| Power consumption (sleep) | Max 4 µA |
| Power consumption (Idle) | Max 0.3 mA |
| Environmental specifications | |
| Operating temperature | -40°C ~ +85°C |
| Storage temperature | -55°C ~ +125°C |
| Report rate | |
| 1 finger | 110 Hz |
| 2 fingers | 80 Hz |
Pixcir supports all popular operating systems, including Android™, Linux, Meego and Windows™
Tango R32 typical applications include Smartphones, Portable media players, Game consoles, Navigation systems, …
