Advance Information

SSD2521 is an all in one capacitive touch panel driver that integrated the power circuits, driving and sensing circuits into a single chip. It can drive capacitive type touch panel with up to 21 driving and 12 sensing lines.

• Operating voltage: 2.5~3.3V, typical 2.775V

• 8V to 15.5V(max.) driving voltage with external booster Caps

• 16 steps in 0.5V increment programmable driving voltage control

• Support 640x352 touch resolution and capable to support up to WVGA panel

• Support 200Hz max. sampling rate (25~200Hz user programmable)

• Total 21 driving and 12 sensing pins

• Fully programmable driver scanning order

• 8 choices for Touch Screen Orientation control

• Provide (X, Y) coordinates and number of touch points with force index and speed index (Max. 4 points)

• Automatic mode switching (Normal, Idle)

• Auto calibration for each cross-over point

• Support IIC (up to 400kbit/s) and 4-wires SPI interface

• Package: QFN 68 pins, QFN48, QFN40