TSC2004 datasheet(1/62 Pages) TI2

Il numero della parte	TSC2004

Spiegazioni elettronici	1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire TOUCH SCREEN CONTROLLER with I2C™ Interface

PDF	62 Pages

Scroll/Zoom	100%

Produttore elettronici	TI2 [Texas Instruments]

Homepage	https://www.ti.com

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1 / 62 page

TSC2004

®

BurrBrown Products

from Texas Instruments

1

FEATURES

APPLICATIONS

DESCRIPTION

PINTDAV

I C

2

Serial

Interface

and

Control

SDA

AD0

RESET

VREF

X+

X

-

Y+

Y

-

AUX

TEMP

Mux

PENIRQ

DAV

SAR

ADC

Internal

Clock

Touch

Screen

Drivers

Interface

SCL

AD1

TSC2004

SBAS408E – JUNE 2007 – REVISED MARCH 2008

1.2V to 3.6V, 12-Bit, Nanopower, 4-Wire

TOUCH SCREEN CONTROLLER with I2C™ Interface

• Cellular Phones

23

• 4-Wire Touch Screen Interface

• Portable Instruments

• Ratiometric Conversion

• MP3 Players, Pagers

• Single 1.2V to 3.6V Supply

• Multiscreen Touch Control

• Preprocessing to Reduce Bus Activity

• High-Speed I2C-Compatible Interface

• Internal Detection of Screen Touch

The TSC2004 is a very low-power touch screen

• Register-Based Programmable:

controller designed to work with power-sensitive,

–

10-Bit or 12-Bit Resolution

handheld applications that are based on advanced

low-voltage processors. It works with a supply voltage

–

Sampling Rates

as low as 1.2V, which can be supplied by a

–

System Timing

single-cell

battery.

It

contains

a

complete,

• On-Chip Temperature Measurement

ultralow-power, 12-bit, analog-to-digital (A/D) resistive

touch screen converter, including drivers and the

• Touch Pressure Measurement

control logic to measure touch pressure.

• Auto Power-Down Control

In addition to these standard features, the TSC2004

• Low Power:

offers

preprocessing

of

the

touch

screen

–

760

µW at 1.8V, 50SSPS

measurements to reduce bus loading, thus reducing

–

580

µW at 1.6V, 50SSPS

the consumption of host processor resources that can

then be redirected to more critical functions.

–

285

µW at 1.2V, 50SSPS

–

74

µW at 1.6V, 8.2kSPS Eq. Rate

The TSC2004 supports an I2C serial bus and data

transmission protocol in all three defined modes:

–

47

µW at 1.2V, 8.2kSPS Eq. Rate

standard,

fast,

and

high-speed.

It

offers

• Enhanced ESD Protection:

programmable

resolution

of

10

or

12

bits

to

–

±8kV HBM

accommodate different screen sizes and performance

needs.

–

±1kV CDM

–

±25kV Air Gap Discharge

The TSC2004 is available in a miniature, 18-lead,

5 x 5 array, (2.554 ±0.54)mm x (2.554 ±0.54)mm

–

±12kV Contact Discharge

wafer chip-scale package (WCSP), and a 20-pin, 4 x

• 2.5 x 2.5 WCSP-18 and 4 x 4 QFN-20 Packages

4 QFN package. Both packages are characterized for

U.S. Patent No. 6,246,394; other patents pending.

the –40

°C to +85°C industrial temperature range.

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

I2C is a trademark of NXP Semiconductors.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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