Datasheet > G1603

G1603

更新时间： 2022-02-26 14:42:42

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描述
Programmable 121 Channel Voltage Buffers with NVM for TFT LCD

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G1603 数据手册

G1603

Global Mixed-mode Technology

Programmable 12+1 Channel Voltage Buffers with

NVM for TFT LCD

Features

Supply Operation Range : 7V to 20V

12+1 Channels :

Applications

TFT-LCD Monitors

LCD Televisions

---12 Channel Rail-to-Rail Programmable

Gamma Buffers

10 bits Resolution for each Channel

25mA Output Current for each Channel

---1Channel Rail-to-Rail Vcom Buffer:

10 Bits Adjustable Output

±100mA Output Current

General Description

The G1603 consists of 12+1 channel buffers target

toward the needs of thin film transistor liquid crystal

display (TFT LCD). This device incorporates one

Vcom buffer and 12 gamma buffers, and is pro-

grammed through I²C interface. It contains two register

banks which can store two different sets of gamma

and VCOM values. Each buffer is capable of driving

heavy capacitive loads and offering large current load-

ing (Vcom: 100mA, Gammas: 25mA).

±300mA Output Short-Circuit Current

50V/μs Slew Rate

Programmable VCOM Limits

---2 Banks Registers Using BKSEL to Select

which Bank Data Output

2-Wire I²C Slave Mode Interface

Non-Volatile Memory (NVM) Store Setting (at

Least 100 Re-Write Times)

The G1603 is available in the QFN4X4-24 package.

QFN4X4-24 Package

Ordering Information

ORDER

MARKING

NUMBER

TEMP.

RANGE

PACKAGE

(Green)

G1603Q51U

1603

-40°C to 85°C

QFN4X4-24

Note: Q5:QFN4X4-24

1: Bonding Code

U: Tape & Reel

Pin Configuration

Typical Application Circuit

18V

AVDD

8,21

DAC

Reference

VREF

GMA1

GMA2

GMA3

10-BIT

DAC

REF

10-BIT

DAC

10-BIT

DAC

12 GMA4

10-BIT

DAC

18 GMA10

Bank1

GAMMA

VCOM

AGND_AMP

DVDD

Bank1

GAMMA

VCOM

Bank1

GAMMA

VCOM

GMA5

GMA6

10-BIT

DAC

GMA9

10-BIT

DAC

GMA8

SCL

Thermal

Pad

Source

Driver

LCD

PANEL

SDA

15 GMA7

MUX

15 GMA7

10-BIT

DAC

BKSEL

GMA6

GMA8

10-BIT

DAC

Bank2

GAMMA

VCOM

Bank2

GAMMA

VCOM

GMA5

17 GMA9

10-BIT

DAC

GMA10

GMA11

GMA12

18V

10-BIT

DAC

10-BIT

DAC

MTP

REG

DAC

REG

10-BIT

DAC

G1603 QFN4X4-24

10-BIT

DAC

Note: Recommend connecting the Thermal Pad to

the Ground for excellent power dissipation.

DVDD

SCL

SDA

22 AVDD_AMP

VCOM

INTERFACE

VCOM_FB

AGND_AMP

AGND

BKSEL

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 0.1

Aug 21, 2012

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