Datasheet > ISL24822

ISL24822

更新时间： 2024-11-19 14:57:15

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
2页	198K
描述
Programmable 14-Channel x 2 Bank, 10-bit TFT-LCD VREF Generator with Buffered VCOM Calibrator

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数据手册

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ISL24822 数据手册

ED FOR NEW DESIGNS

NOT RECOMMEND

DATA SHORT

EPLACEMENT

NO RECOMMENDED R

To request the full datasheet, please visit www.intersil.com/products/isl24822

upport Center at

contact our Technical S

r www.intersil.com/tsc

1-888-INTERSIL o

ISL24822

FN6664

Rev 2.00

November 6, 2014

Programmable 14-Channel x 2 Bank, 10-bit TFT-LCD V

Generator with

REF

Buffered V

Calibrator

COM

The ISL24822 is a programmable 14-Channel, 10-bit

reference voltage generator with a digitally-controlled V

Features

COM

• 14 I C-programmable 10-bit DACs

Calibrator and op amp. Two selectable banks of 14 channels

allow fast hardware or software switching between 2 different

gamma curves. The ISL24822 is configured and controlled via

• Integrated programmable V

COM

calibrator

• V

COM

op amp

a standard I C Interface.

• 2 Banks of volatile memory for DACs

• 4.5V to 19V analog supply range

• 2.25V to 3.6V digital supply range

• 20mA analog supply current (unloaded)

• 700µA digital supply current

The ISL24822 is available in a 32 Ld TQFN package and is

specified for operation over the -40°C to +85°C temperature

range.

Applications

• TFT-LCD column driver reference generator

• I C serial interface

• General-purpose reference voltage generators

• Pb-free (RoHS compliant)

GAMMA

TFT-LCD PANEL

TIMING

CONTROL

(TCON)

COLUMN DRIVERS

TFT-LCD SCREEN

ISL24822

GAMMA BUFFER

(COLUMN DRIVER

DAC REFERENCE

VOLTAGES)

STORAGE

CAPACITOR

DATA

LINE

SELECT

LINE

PIXEL

GATE

DRIVERS

V_COM

CALIBRATOR

V_COM

DRIVER

TFT

COMMON

(V_COM

)

FIGURE 1. TYPICAL APPLICATION: TFT-LCD REFERENCE VOLTAGE GENERATOR

FN6664 Rev 2.00

November 6, 2014

Page 1 of 2

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