TSC2004IRTJT datasheet(9/54 Pages) BURR-BROWN

部件名	TSC2004IRTJT

功能描述	1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire TOUCH SCREEN CONTROLLER with I2C??Interface

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制造商	BURR-BROWN [Burr-Brown (TI)]

网页	http://www.burr-brown.com

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TYPICAL CHARACTERISTICS

-40

-20

0

20

40

60

80

100

Temperature( C)

°

1.5

1.0

0.5

0

-0.5

-1.0

-1.5

SNSVDD=IOVDD=V

REF

SNSVDD=1.2V

SNSVDD=1.6V

SNSVDD=3.0V

-40

-20

0

20

40

60

80

100

Temperature( C)

°

1.5

1.0

0.5

0

-0.5

-1.0

-1.5

SNSVDD=I/OVDD=V

REF

SNSVDD=1.2V

SNSVDD=1.6V

SNSVDD=3.0V

-

40

-

20

0

20

40

60

80

100

Temperature( C)

°

650

550

450

350

250

150

50

SNSVDD=3.0V

I/OVDD=SNSVDD=V

REF

SNSVDD=1.6V

SNSVDD=1.2V

1.2

1.6

2.0

2.4

2.8

3.2

3.6

SNSVDD(V)

1.00

0.75

0.50

0.25

0

I/OVDD=SNSVDD=V

REF

T =+25 C

°

A

f

=2MHz

ADC

f

=1MHz

ADC

1.2

1.6

2.0

2.4

2.8

3.2

3.6

SNSVDD(V)

1.2

1.0

0.8

0.6

0.4

0.2

0

TouchSensorModeledBy:

2k

forY-Plane

W

2k

forY-Plane

W

1kW forZ(TouchResistance)

(2)

M=15,W=7

(1)

M=1,W=1

(1)

I/OVDD=SNSVDD=V

REF

T

A =+25°C

t

,t

PVS

PRE

SNS =defaultvalues

TSC-InitiatedModeScanX,Y,Zat50SSPS

-40

-20

0

20

40

60

80

100

Temperature(°C)

100

80

60

40

20

0

SNSVDD=1.6V

SNSVDD=3.6V

SNSVDD=3.0V

I/OVDD=SNSVDD

V

=1.6V

REF

TSC2004

SBAS408A – JUNE 2007 – REVISED AUGUST 2007

At TA = –40°C to +85°C, SNSVDD = VREF = +1.6V to +3.6V, I/OVDD = +1.2V to +3.6V, fADC = fOSC/2, High-Speed mode (fSCL

= 3.4MHz), 12-bit mode, and non-continuous AUX measurement, unless otherwise noted.

CHANGE IN OFFSET

CHANGE IN GAIN

vs TEMPERATURE

Figure 2.

Figure 3.

SNSVDD SUPPLY CURRENT

vs TEMPERATURE

vs SNSVDD SUPPLY VOLTAGE

Figure 4.

Figure 5.

SNSVDD SUPPLY CURRENT

POWER-DOWN SUPPLY CURRENT

vs SNSVDD SUPPLY VOLTAGE

vs TEMPERATURE

Figure 7.

(1)

See Table 1

(2)

See Figure 24

Figure 6.

9

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