TSC2005
www.ti.com
SBAS379–DECEMBER 2006
TYPICAL CHARACTERISTICS (continued)
At TA = –40°C to +85°C, SNSVDD = VREF = +1.6V to +3.6V, I/OVDD = +1.2V to +3.6V, fADC = fOSC/2, fSCLK = 10MHz, 12-bit
mode, and non-continuous AUX measurement, unless otherwise noted.
TEMP1 DIODE VOLTAGE
vs SUPPLY VOLTAGE
TEMP2 DIODE VOLTAGE
vs SUPPLY VOLTAGE
588
586
584
582
580
578
576
574
704
702
700
698
696
694
692
690
Measurement Includes
A/D Converter Offset
and Gain Errors
Measurement Includes
A/D Converter Offset
and Gain Errors
TA = +25°C
TA = +25°C
I/OVDD = SNSVDD
VREF = 1.6V
VREF = 1.6V
1.6
2.0
2.4
2.8
3.2
3.6
1.6
2.0
2.4
2.8
3.2
3.6
SNSVDD (V)
SNSVDD (V)
Figure 14.
Figure 15.
SUPPLY CURRENT
vs SUPPLY VOLTAGE
INTERNAL OSCILLATOR CLOCK FREQUENCY
vs TEMPERATURE
1.2
1.0
0.8
0.6
0.4
0.2
0
3.70
3.65
3.60
3.55
3.50
TA = +25°C
SNSVDD = 1.6V
I/OVDD = SNSVDD
VREF = 1.6V
tPVS, tPRE, tSNS = Default Values
M = 15, W = 7
M = 1, W = 1
TSC-Initiated Mode Scan X, Y, Z at 50SSPS
Touch Sensor modeled by: 2kW for X-Plane
2kW for Y-Plane
1kW for Z (Touch Resistance)
1.6
2.0
2.4
2.8 3.2
3.6
-40
-20
0
20
40
60
80
100
SNSVDD (V)
Temperature (°C)
Figure 16.
Figure 17.
INTERNAL OSCILLATOR CLOCK FREQUENCY
vs TEMPERATURE
3.95
SNSVDD = 3.0V
3.90
3.85
3.80
3.75
-40
-20
0
20
40
60
80
100
Temperature (°C)
Figure 18.
9
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