Datasheet

AR1100 RESISTIVE USB AND RS-232 TOUCH SCREEN CONTROLLER
DS41606B-page 52  2011 Microchip Technology Inc.
APPENDIX B:
FIGURE B-1: SCHEMATIC
FIGURE B-2: BILL OF MATERIALS
Note: ESD protection diodes are recommended for all active sensor lines but care should be taken to minimize
capacitance. As an example, PESD5V0S1BA is recommended and used on reference designs due to its
nominally-low 35 pF.
Note: Unused SENSOR pins should be grounded.