AUR3852：Touch Screen Controllers
| Part Number | Data Sheet | SPICE Model | VDD (V) | Max Channels(Driving x Sensing) | Target Panel Size (") | Max TouchPoints | ADC Resolution (bits) | Flash | Interface |
|---|---|---|---|---|---|---|---|---|---|
| AUR3852 | AUR3852.pdf | - | 2.8 to 3.6 | 42 (27 x 15) | 3 to 7 | 10 | 12 | 32KB | UART I2C |
Description
The AUR3852 is a low-cost high-resolution single chip solution for APA capacitive touch screen. It is an 8-bit single cycle 8051 microcontroller with ICP Interface. The chip includes a 12-bit successive approximation analog-to-digital converter with an I2C interface and multiplexer-switcher circuits for flexible measurement of analog signal from APA panel. An accurate switched-capacitor integrator is built-in and it can auto calibrate the pixel parameters for a wide range of capacitance on the touch screen (0.1pF to 4pF). On-chip capacitor can replace external component. This touch screen controller (TSC) with CMOS integration circuit provides an ideal choice for APA touch panel. The AUR3852 is specified over the temperature range of -40°C to 85°C.
Application
- Mobile Phones
- Personal Digital Assistants
- Smart Hand-held or Gaming Devices
Features
- 1Mutual Capacitive Touch Sensing
- Single Power Supply: 2.8V to 3.6V Operation Voltage
- 1Supports Low Voltage to 1.8V by Built-in 1.8V to 3.3V Boost Converter
- QFN-6×6-48 Package: Up to 20 Drive Lines and 14 Sense Lines
- 1QFN-7×7-56 Package: Up to 27 Drive Lines and 15 Sense Lines
- 1Dedicated Internal Two-wire Serial Control Bus I2C and UART between AUR3852 and Host
- 1Single-end Integrator with Programmable Gain Control and Offset Control
- 1Multiplexed Analog Digitization with 12-bit Resolution SAR ADC
- Single Cycle 8051 CPU Core, Maximum Operating Clock up to 24MHz from IOSC 2MHz to 24MHz Internal Oscillator (IOSC) 32K-byte Flash ROM 256-byte Internal SRAM and 5888-byte XSRAM Two 16-bit Timers T0/T1 and One 16-bit ECT Timer T2 One I2C Slave Controller and One I2C Master Controller Shared with the Same Port
U-QFN5050-40
U-QFN6060-48
U-QFN7070-56
- AUR3852.pdf AUR3852
