AR7643 ETC, AR7643 Datasheet

AR7643

Manufacturer Part Number

AR7643

Description

12-bit Touch Panel Controller IC

Manufacturer

ETC

Datasheet

1.AR7643.pdf (3 pages)

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Download datasheet (773Kb)

12-bit Touch Panel Controller IC

FEATURES

APPLICATIONS

DESCRIPTION

The AR7643 Touch Panel Controller IC is a 12-bit SAR analog-to-digital (ADC)

converter with SPI serial interface and low on-resistance drivers for 4-wire

resistive touch panels.

The AR7643 is a highly integrated controller suitable for portable

applications which use 4-wire resistive touch panels such as, PDA,

portable instruments, cellular phone, etc. The AR7643 contains all the

analog and digital circuitry necessary to complete a pen request.

The AR7643 consumes only 648 mW at a 125 KHz sample rate and a

2.7 V supply and consumes only 2.7 mW in shutdown mode.

AR7643 is guaranteed to operate down to 2.2 V supply.

The AR7643 is provided in a very small 16-lead SSOP package and is

guaranteed over the temperature range from 40 to +85°C.

ƒÜ Serial interface

ƒÜ 4-wire touch panel interface

ƒÜ Embedded touch panel drivers

ƒÜ 2.2 V to 5.5 V supply voltage

ƒÜ 12-bit analog to digital converter

ƒÜ Programmable 8 or 12 bit resolution

ƒÜ Up to 125 KHZ conversion rate

ƒÜ 2 auxiliary analog inputs

ƒÜ Full power down control

ƒÜ SSOP-16 package

Personal digital assistants (PDAs)

Point of sales terminals

Pagers

High speed data acquisition

Portable instruments

Low power instruments

The wireless communication solution provider

AR7643

The

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