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參數(shù)資料
| 型號： | BUF16820 |
| 英文描述： | 14-Channel GAMMA VOLTAGE GENERATOR with Programmable VCOM Outputs and OTP Memory |
| 中文描述： | 14通道伽瑪電壓發(fā)生器具有可編程威科姆輸出和OTP存儲器 |
| 文件頁數(shù)： | 15/30頁 |
| 文件大?。?/td> | 681K |
| 代理商： | BUF16820 |
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SBOS356A FEBRUARY 2006 REVISED OCTOBER 2006
www.ti.com
15
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 BUF16820 can
significantly reduce the time required for gamma voltage
optimization. The final gamma values can be written into
the internal OTP memory to replace a traditional gamma
buffer solution. Figure 13a shows the traditional resistor
string; Figure 13b shows the more efficient alternative
method using the BUF16820.
The BUF16820 uses the most advanced high-voltage
CMOS process available today, which allows it to be
competitive with traditional gamma buffers.
Programmability offers the following advantages:
Shortens development time significantly.
Increases reliability by eliminating more than 18
external components.
Eliminates manufacturing variance between panels.
Allows a single panel to be built for multiple
customers, with loading of customer-dependent
gamma curves during final production. This method
significantly lowers inventory cost and risk, and
simplifies inventory management.
Allows demonstration of various gamma curves to
LCD monitor makers by simply uploading a different
set of gamma values.
Allows simple adjustment of gamma curves during
production to accommodate changes in the panel
manufacturing process or end-customer require-
ments.
Decreases cost and space.
BUFxx704
a) Traditional
b)
BUF16820
Solution
PC
SDA
SCL
SDA
SCL
Timing
Controller
LCD Panel Electronics
BUF16820
R
Control Interface
Gamma
References
OUT1
OUT2
OUT13
OUT14
V
COM
V
COM1
V
COM2
Figure 13. Replacement of the Traditional Gamma Buffer
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PDF描述 |
|---|---|
| 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 |
| BUF20800AIDCPR | 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels |
| BUF20820 | 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 |
|---|---|
| BUF16820AIDAPR | 功能描述:LCD Gamma緩沖器 14-Ch Vltg Generator w/2 Prog VCOM Out 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 |
| BUF16820AIDAPRG4 | 功能描述:LCD Gamma緩沖器 14-Ch Vltg Generator w/2 Prog VCOM Out 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 |
| BUF16821 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory |
| BUF16821_1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory |
| BUF16821A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory |
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