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參數(shù)資料
| 型號(hào)： | BUF12800AIPWP |
| 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(yè)數(shù)： | 12/20頁(yè) |
| 文件大?。?/td> | 282K |
| 代理商： | BUF12800AIPWP |
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SBOS315 DECEMBER 2004
www.ti.com
12
REPLACEMENT OF TRADITIONAL GAMMA
BUFFER
Traditional gamma buffers rely on a resistor string (often
using expensive 0.1% resistors) to set the gamma
voltages. During development, the optimization of these
gamma voltages can be time consuming. Programming
these gamma voltages with the BUF12800 can
significantly reduce the time required for gamma voltage
optimization. The final gamma values can be written into
an external EEPROM to replace a traditional gamma
buffer solution. During power-up of the LCD panel, the
timing controller can read the EEPROM and load the
values into the BUF12800 to generate the desired gamma
voltages. Figure 13a shows the traditional resistor string;
Figure 13b shows the more efficient alternative method
using the BUF12800.
BUF12800 uses the most advanced high-voltage CMOS
process available today, which allows it to be competitive
with traditional gamma buffers.
This technique offers significant advantages:
It shortens development time significantly.
It allows demonstration of various gamma curves
to LCD monitor makers by simply
uploading
a
different set of gamma values.
It allows simple adjustment of gamma curves
during production to accomodate changes in the
panel manufacturing process.
It decreases cost and space.
BUFxx704
a) Traditional
b)
BUF12800
Solution
BUF12800
PC
SDA
SCL
SDA
SCL
EEPROM
R
Timing
Controller
Control Interface
Out A
Out B
Out K
Out L
LCD Panel Electronics
Figure 13. Replacement of Traditional Gamma Buffer
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BUF12800AIPWPR | REFERENCE VOLTAGE GENERATOR for LCD GAMMA CORRECTION |
| BUF16820 | 14-Channel GAMMA VOLTAGE GENERATOR with Programmable VCOM Outputs and OTP Memory |
| BUF16820AIDAPR | 14-Channel GAMMA VOLTAGE GENERATOR with Programmable VCOM Outputs and OTP Memory |
| BUF16820AIDAPRG4 | 14-Channel GAMMA VOLTAGE GENERATOR with Programmable VCOM Outputs and OTP Memory |
| BUF20800 | 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BUF12800AIPWPG4 | 功能描述:LCD Gamma緩沖器 Ref Vltg Generator for Correction RoHS:否 制造商:Maxim Integrated 輸入補(bǔ)償電壓: 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF12800AIPWPR | 功能描述:LCD Gamma緩沖器 Ref Vltg Generator for Correction RoHS:否 制造商:Maxim Integrated 輸入補(bǔ)償電壓: 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| 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(bǔ)償電壓: 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
| BUF12800EVM | 功能描述:放大器 IC 開(kāi)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(píng)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 |
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