LM8400 National Semiconductor, LM8400 Datasheet - Page 16

• Manufacturer Part Number: LM8400
• Description: Four Wire Resistive Touchscreen Controller with Brownout
• Manufacturer: National Semiconductor

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9.0 Calibration
FIGURE 7. Thirteen Points Calibration Mapping
FIGURE 6. Five Points Calibration Mapping
FIGURE 5. Two Points Calibration Mapping
(Continued)
20037207
20037208
20037209
16
Calibration point Theoretical X-value Theoretical Y-value
Calibration point Theoretical X-value Theoretical Y-value
Calibration point Theoretical X-value Theoretical Y-value
10
11
12
13
1
2
1
2
3
4
5
1
2
3
4
5
6
7
8
9
TABLE 6. Thirteen Points Calibration
TABLE 5. Five Points Calibration
TABLE 4. Two Points Calibration
127
895
127
895
127
511
895
127
895
127
511
895
895
511
127
511
623
623
319
319
127
895
127
895
895
127
127
895
895
127
895
127
319
623
623
319
511
511
511
511