TSC2046E-Q1 datasheet(6/28 Pages) TI1

Part #	TSC2046E-Q1

Description	LOW-VOLTAGE I/O TOUCH SCREEN CONTROLLER

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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6 / 28 page

CHANGE IN GAIN vs TEMPERATURE

−40

−20

0

20

40

60

80

100

0.15

0.10

0.05

0

−0.05

−0.10

−0.15

Temperature (°C)

CHANGE IN OFFSET vs TEMPERATURE

−40

−20

0

20

40

60

80

100

0.6

0.4

0.2

0

−0.2

−0.4

−0.6

Temperature (°C)

REFERENCE CURRENT vs TEMPERATURE

−40

−20

0

20

40

60

80

100

18

16

14

12

10

8

6

REFERENCE CURRENT vs SAMPLE RATE

0

25

50

75

100

125

Sample Rate (kHz)

14

12

10

8

6

4

2

0

SWITCH ON− RESISTANCE vs +V

CC

(X+, Y+: +V

CC to Pin; X−, Y−: Pin to GND)

2.0

2.5

3.0

3.5

4.0

4.5

5.0

+V

CC (V)

8

7

6

5

4

3

Y−

X−

X+, Y+

SWITCH ON−RESISTANCE vs TEMPERATURE

(X+, Y+: +V

CC to Pin; X−, Y−: Pin to GND)

−40

−20

0

20

40

60

80

100

8

7

6

5

4

3

2

1

Y−

X−

X+, Y+

Temperature (°C)

TSC2046E-Q1

SBAS510 – JUNE 2010

www.ti.com

TYPICAL CHARACTERISTICS (continued)

At TA = +25°C, +VCC = +2.7V, IOVDD = +1.8V, VREF = External +2.5V, 12-bit mode, PD0 = 0, fSAMPLE = 125kHz,

fCLK = 16 × fSAMPLE = 2MHz (unless otherwise noted)

6

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