AR1100 Microchip Technology, Inc., AR1100 Datasheet - Page 11

• Manufacturer Part Number: AR1100
• Manufacturer: Microchip Technology, Inc.

3.4
Suggested ESD protection is shown on the reference
schematic
Additional/alternate ESD countermeasures may be
employed to meet application-specific requirements.
Test to ensure the selected ESD protection does not
degrade touch performance.
3.5
Touch sensor filtering capacitors are included in the
reference design schematic (See
“Schematic”).
 2011 Microchip Technology Inc.
Note:
Note:
ESD Considerations
Noise Considerations
ESD protection diodes are recommended
for all active sensor lines but care should
be taken to minimize capacitance. As an
example,
recommended and used on reference
designs due to its nominally-low 35 pF.
Changing the value of the sensor filter
capacitors may adversely affect touch
performance.
AR1100 RESISTIVE USB AND RS-232 TOUCH SCREEN CONTROLLER
(See
FIGURE
PESD5V0S1BA
B-1:
“Schematic”).
FIGURE B-1:
Preliminary
is
DS41606A-page 11