GMT G1603 Programmable 121 channel voltage buffers with nvm for tft lcd Datasheet

G1603
Global Mixed-mode Technology
Programmable 12+1 Channel Voltage Buffers with
NVM for TFT LCD
Features
Applications
„ 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
„ 2-Wire I C Slave Mode Interface
„ Non-Volatile Memory (NVM) Store Setting (at
Least 100 Re-Write Times)
„ QFN4X4-24 Package
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 programmed 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 loading (Vcom: 100mA, Gammas: 25mA).
The G1603 is available in the QFN4X4-24 package.
Ordering Information
ORDER
NUMBER
MARKING
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
GMA11
REF
AGND_AMP
1
18
GMA10
DVDD
2
17
GMA9
16
GMA8
15
GMA7
SCL
3
SDA
4
BKSEL
5
14
GMA6
A0
6
13
GMA5
Bank1
GAMMA
VCOM
REF
Bank1
GAMMA
VCOM
Bank1
GAMMA
VCOM
12
Bank2
GAMMA
VCOM
MTP
REG
I2C
REG
Bank2
GAMMA
VCOM
9 GMA1
10-BIT
DAC
10 GMA2
10-BIT
DAC
11 GMA3
10-BIT
DAC
12 GMA4
10-BIT
DAC
13
10-BIT
DAC
14 GMA6
10-BIT
DAC
15
GMA7
10-BIT
DAC
16
GMA8
10-BIT
DAC
17
GMA9
10-BIT
DAC
18
GMA10
10-BIT
DAC
DAC
REG
G1603 QFN4X4-24
Note: Recommend connecting the Thermal Pad to
the Ground for excellent power dissipation.
10-BIT
DAC
GMA5
MUX
GMA4
11
GMA3
10
GMA2
9
GMA1
8
AVDD
7
Thermal
Pad
AGND
REF
19
AVDD
GMA12
VREF
20
AVDD_AMP
DAC
Reference
21
VCOM
22
23
24
VCOM_FB
8,21
10-BIT
DAC
DVDD
SCL
SDA
A0
20 GMA12
18V
22
I2C
INTERFACE
AVDD_AMP
23 VCOM
24
1
7
AGND
Ver: 0.1
Aug 21, 2012
LCD
PANEL
19 GMA11
10-BIT
DAC
2
3
4
6
Source
Driver
VCOM_FB
AGND_AMP
5
BKSEL
TEL: 886-3-5788833
http://www.gmt.com.tw
1
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