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參數(shù)資料
| 型號： | BUF12800AIPWPR |
| 英文描述： | REFERENCE VOLTAGE GENERATOR for LCD GAMMA CORRECTION |
| 中文描述： | 參考電壓發(fā)生器，用于LCD伽瑪校正 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 282K |
| 代理商： | BUF12800AIPWPR |
FEATURES
12-CHANNEL GAMMA CORRECTION
10-BIT RESOLUTION
DOUBLE-BUFFERED DAC REGISTERS
INTEGRATED REFERENCE BUFFERS
RAIL-TO-RAIL OUTPUT
LOW SUPPLY CURRENT: 900
μ
A/ch
SUPPLY VOLTAGE: 7V to 18V
DIGITAL SUPPLY: 2.7V to 5.5V
INDUSTRY-STANDARD TWO-WIRE INTERFACE
High-Speed Mode: 3.4MHz
HIGH ESD RATING:
4kV HBM, 1kV CDM, 200V MM
DEMOBOARD AND SOFTWARE AVAILABLE
Out A
13
REFH
3
V
S
1, 2
BUF12800
V
SD
4
REFL
10
9
11, 12
A0
7
LD
8
SCL
5
SDA
6
Out B
14
Out C
15
Out D
16
Out E
17
Out F
18
Out G
19
Out H
20
Out I
21
Out J
22
Out K
23
Out L
24
D
D
Control IF
APPLICATIONS
TFT-LCD REFERENCE DRIVERS
REFERENCE VOLTAGE GENERATORS
INDUSTRIAL PROCESS CONTROL
DESCRIPTION
The BUF12800 is a programmable voltage reference
generator designed for dynamic gamma correction in
TFT-LCD panels. It provides 12 programmable outputs,
each with 10-bit resolution.
TI’s new, small geometry, state-of-the-art, analog CMOS
process allows the use of one digital-to-analog converter
(DAC) per channel while still maintaining a very small chip
size. This topology has the advantage of significantly
increased programming speed over existing program-
mable buffers.
Programming of each output occurs through an industry-
standard, two-wire serial interface. Unlike existing
programmable buffers, the BUF12800 offers a high-
speed, two-wire interface mode that allows clock speeds
up to 3.4MHz. The BUF12800 features a double-buffered
DAC register structure that significantly simplifies imple-
mentation of dynamic gamma control. This further reduces
programming time, especially when many channels have
to be updated simultaneously.
Reference pins set the high and low voltages of the output
range. They are internally buffered, which simplifies
design. They may be connected to external resistors to
divide the output range for finer resolution of outputs.
The BUF12800 is available in a TSSOP-24 PowerPAD
package. It is specified from 40
°
C to +85
°
C.
BUF12800 RELATED PRODUCTS
FEATURES
11-Channel Gamma Correction Buffer, Int VCOM
6-Channel Gamma Correction Buffer, Int VCOM
6-Channel Gamma Correction Buffer
4-Channel Gamma Correction Buffer, Int VCOM
High-Supply Voltage Gamma Buffers
20-Channel Programmable Buffer, 10-Bit, VCOM
PRODUCT
BUF11702
BUF07703
BUF06703
BUF05703
BUFxx704
BUF20800
BUF12800
SBOS315 DECEMBER 2004
REFERENCE VOLTAGE GENERATOR
for LCD GAMMA CORRECTION
!
!
www.ti.com
Copyright
2004, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.
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| BUF16820AIDAPRG4 | 14-Channel GAMMA VOLTAGE GENERATOR with Programmable VCOM Outputs and OTP Memory |
| BUF20800 | 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels |
| BUF20800AIDCPR | 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BUF12800AIPWPRG4 | 功能描述:LCD Gamma緩沖器 Ref Vltg Generator for Correction RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF12800EVM | 功能描述:放大器 IC 開發(fā)工具 BUF12800 Eval Mod RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| BUF12840 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Programmable Gamma-Voltage Generator |
| BUF12840_12 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Programmable Gamma-Voltage Generator with Integrated Two-Bank Memory and External EEPROM |
| BUF12840AIRGER | 功能描述:LCD Gamma緩沖器 12 Channel Gamma Buffer RoHS:否 制造商:Maxim Integrated 輸入補償電壓: 轉換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
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