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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 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大小： | 282K |
| 代理商： | BUF12800AIPWP |
"#$%&''
SBOS315 DECEMBER 2004
www.ti.com
5
APPLICATIONS INFORMATION
The BUF12800 programmable voltage reference allows
fast and easy adjustment of 12 programmable reference
outputs, each with 10-bit resolution. It allows very simple,
time-efficient adjustment of the gamma reference
voltages. The BUF12800 is programmed through a
high-speed standard two-wire interface. The BUF12800
features a double-register structure for each DAC channel
to simplify the implementation of dynamic gamma control
(see the
Dynamic Control
section). This allows
pre-loading
of register data and rapid updating of all channels
simultaneously.
Buffers AF are able to swing to within 300mV of the
positive supply rail, and to within 1.1V of the negative
supply rail. Buffers GL are able to swing to within 1.7V
of the positive supply rail, and to within 300mV of the
negative supply rail. (See the
Electrical Characteristics
table for further information).
Each buffer is capable of full-scale change in output
voltage in less than 4
μ
s; see Figure 4, typical
characteristic
Full-Scale Output Swing
.
Figure 7 shows the BUF12800 in a typical configuration.
In this configuration, the BUF12800 device address is 74h.
The output of each DAC is immediately updated as soon
as data is received in the corresponding register (LD = 0).
For maximum dynamic range, set V
REFH
= V
S
0.2V and
V
REFL
= V
S
+ 0.2V.
(1)RC combination optional.
(2)GNDD and GNDA are internally connected and must be at the same voltage potential.
V
S
V
S
REFH
V
DS
SCL
SDA
A0
LD
GND
D(2)
REFL
GND
A(2)
GND
A(2)
Out L
Out K
Out J
Out I
Out H
Out G
Out F
Out E
Out D
Out C
Out B
Out A
Source
Driver
Timing
Controller
V
S
3.3V
10
μ
F
100nF
BUF12800
(1)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
V
S
100nF
1
μ
F
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
Figure 7. Typical Application Configuration
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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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