AK4181A

更新时间： 2024-11-02 21:53:35

品牌	Logo	应用领域
AKM		控制器
页数	文件大小	规格书
17页	188K
描述
TOUCH SCREEN CONTROLLER

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中文翻译

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数据手册

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AK4181A 数据手册

ASAHI KASEI

[AK4181A]

Touch Screen Controller

AK4181A

General Description:

Features:

The AK4181A is a 4-wire touch screen controller that

incorporates a 12-bit 125kHz sampling SAR A/D converter.

The AK4181A can detect the pressed screen location by

performing two A/D conversions. In addition to location, the

AK4181A also measures touch screen pressure.

On-chip VREF can be utilized for two analog auxiliary

inputs and battery monitoring, with the ability to measure

voltages from 0V to 5V.

Sampling Frequency: 125kHz(max)

Pen Pressure Measurement

On-Chip Thermo Sensor

Two Auxiliary Analog Inputs

Direct Battery Measurement

4-wire I/F

On-Chip Voltage Reference (2.5V)

12 bit SAR type A/D Converter with S/H circuit

Low Power Consumption (250µA)

Low Voltage Operation (2.7V - 3.6V)

The AK4181A also has an on-chip temperature sensor.

Package

16pin TSSOP

DCLK

CSN

DIN

Control

Logic

DOUT

BUSY

VREF

IN1

Internal VREF(2.5V)

IN2

VBAT

VREF+

AIN+

VREF-

12bit

ADC

(SAR type)

AIN-

PENIRQN

PEN

INTERRUPT

Temp.

Sensor

VCC

GND

Block Diagram

MS0313-E-00

2004/06

12 3 4 5 6 7...17

中文翻译

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