G1603 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Programmable 12+1 Channel Voltage Buffers with NVM for TFT LCD

Global Mixed-mode Technology
G1603
Programmable 12+1 Channel Voltage Buffers with
NVM for TFT LCD
Features
„ Supply Operation Range : 7V to 20V
„ 12+1 Channels :
---12 Channel Rail-to-Rail Programmable
Gamma Buffers
Š 10 bits Resolution for each Channel
Š 25mA Output Current for each Channel
---1 Channel Rail-to-Rail Vcom Buffer:
Š 10 Bits Adjustable Output
Š ±100mA Output Current
Š ±300mA Output Short-Circuit Current
Š 50V/μs Slew Rate
Š 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)
„ QFN4X4-24 Package
Applications
„ TFT-LCD Monitors
„ LCD Televisions
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).
The G1603 is available in the QFN4X4-24 package.
Ordering Information
ORDER
NUMBER
G1603Q51U
Note: Q5:QFN4X4-24
1: Bonding Code
U: Tape & Reel
Pin Configuration
MARKING
1603
TEMP.
RANGE
-40°C to 85°C
PACKAGE
(Green)
QFN4X4-24
Typical Application Circuit
AGND_AMP 1
DVDD 2
SCL 3
SDA 4
BKSEL 5
A0 6
Thermal
Pad
18 GMA10
17 GMA9
16 GMA8
15 GMA7
14 GMA6
13 GMA5
G1603 QFN4X4-24
Note: Recommend connecting the Thermal Pad to
the Ground for excellent power dissipation.
REF
Bank1
GAMMA
VCOM
MTP
REG
2
DVDD
SCL
3
SDA
4
A0
6
REF
Bank1
GAMMA
VCOM
Bank2
GAMMA
VCOM
I2C
REG
I2C
INTERFACE
18V
AVDD
8,21
REF
Bank1
GAMMA
VCOM
Bank2
GAMMA
VCOM
MUX
DAC
REG
DAC
Reference
VREF
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
7
AGND
5
BKSEL
9 GMA1
10 GMA2
11 GMA3
12 GMA4
13 GMA5
14 GMA6
15 GMA7
16 GMA8
17 GMA9
18 GMA10
19 GMA11
20 GMA12
18V
22 AVDD_AMP
23 VCOM
24 VCOM_FB
1 AGND_AMP
Source
Driver
LCD
PANEL
Ver: 0.1
Aug 21, 2012
TEL: [phone]
http://www.gmt.com.tw
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