AR1000_16 Datasheet, PDF (58/61 Pages) Microchip Technology – AR1000 Series Resistive Touch Screen Controller

AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER
APPENDIX B: DEVICE
DIFFERENCES
Modifying, removing or adding components may
adversely affect touch performance.
Specific manufacturers and part numbers are provided
only as a guide. Equivalents can be used.
TABLE B-1: BILL OF MATERIALS
Label Quantity Value
Description
Manufacturer
Part Number
C1
1
10 uF Capacitor – Ceramic, 10 uF, 20%, 6.3V,
AVX
06036D106MAT2A
X7R, 0603
C2
1
0.1 uF Capacitor – Ceramic, 0.1 uF, 10%, 16V,
AVX
0603YC104KAT2A
X7R, 0603
C3, C4, C5⁽¹⁾ 2-3 0.01 uF Capacitor – Ceramic, 0.01 uF, 10%,
50V, X7R, 0603
D1-D8⁽²⁾
4-8
130W Diode – Bidirectional, 130W, ESD
Protection, SOD323
AVX
NXP
06035C103KAT2A
PESD5V0S1BA
R1
1
20 K Resistor – 20 K, 1/10W, 5%, 0603
Yageo America RC0603JR-0720KL
U1
1
N/A Touch controller IC
Microchip AR1011 or AR1021
Note 1:
2:
C5 is only needed for 5-wire applications.
D1-D8 are for ESD protection.
- 4-wire touch screen, use D1-D4
- 5-wire touch screen, use D1-D5
- 8-wire touch screen, use D1-D8
See Section 3.8 “ESD Considerations” and Section 3.9 “Noise Considerations” for important information
regarding the capacitance of the controller schematic hardware.
DS40001393C-page 58
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