TSC2046: Low Voltage I/O Touch Screen Controller (Rev. B)
TSC2046: Low Voltage I/O Touch Screen Controller (Rev. B)
TSC2046: Low Voltage I/O Touch Screen Controller (Rev. B)
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
TYPICAL CHARACTERISTICS (Cont.)<br />
At T A = +25°C, +V CC = +2.7V, IOVDD = +1.8V, V REF = External +2.5V, 12-bit mode, PD0 = 0, f SAMPLE = 125kHz, and f CLK = 16 • f SAMPLE = 2MHz, unless otherwise noted.<br />
0.15<br />
CHANGE IN GAIN vs TEMPERATURE<br />
0.6<br />
CHANGE IN OFFSET vs TEMPERATURE<br />
0.10<br />
0.4<br />
Delta from +25°C (LSB)<br />
0.05<br />
0<br />
–0.05<br />
–0.10<br />
Delta from +25°C (LSB)<br />
0.2<br />
0<br />
–0.2<br />
–0.4<br />
–0.15<br />
–0.6<br />
–40 –20 0 20 40 60 80 100<br />
–40 –20 0 20 40 60 80 100<br />
Temperature (°C)<br />
Temperature (°C)<br />
14<br />
REFERENCE CURRENT vs SAMPLE RATE<br />
18<br />
REFERENCE CURRENT vs TEMPERATURE<br />
12<br />
16<br />
Reference Current (µA)<br />
10<br />
8<br />
6<br />
4<br />
2<br />
Reference Current (µA)<br />
14<br />
12<br />
10<br />
8<br />
0<br />
0 25 50 75 100 125<br />
Sample Rate (kHz)<br />
6<br />
–40 –20 0 20 40 60 80 100<br />
Temperature (°C)<br />
8<br />
SWITCH ON-RESISTANCE vs +V CC<br />
(X+, Y+: +V CC<br />
to Pin; X–, Y–: Pin to GND)<br />
8<br />
SWITCH ON-RESISTANCE vs TEMPERATURE<br />
(X+, Y+: +V CC<br />
to Pin; X–, Y–: Pin to GND)<br />
Y–<br />
7<br />
Y–<br />
7<br />
6<br />
R ON (Ω)<br />
6<br />
5<br />
X–<br />
R ON (Ω)<br />
5<br />
4<br />
X–<br />
X+, Y+<br />
4<br />
X+, Y+<br />
3<br />
2<br />
3<br />
2.0 2.5 3.0 3.5 4.0 4.5 5.0<br />
+V CC<br />
(V)<br />
1<br />
–40 –20 0 20 40 60 80 100<br />
Temperature (°C)<br />
6<br />
www.ti.com<br />
<strong>TSC2046</strong><br />
SBAS265B
Change language