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參數(shù)資料
| 型號(hào)： | BUF16820AIDAPR |
| 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(chǔ)器 |
| 文件頁(yè)數(shù)： | 1/30頁(yè) |
| 文件大?。?/td> | 681K |
| 代理商： | BUF16820AIDAPR |
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FEATURES
14-CHANNEL GAMMA CORRECTION
2 V
COM
OUTPUTS
ON-CHIP OTP MEMORY
10-BIT RESOLUTION
RAIL-TO-RAIL OUTPUT
LOW SUPPLY CURRENT: 1mA/ch
SUPPLY VOLTAGE: 8.5V to 18V
DIGITAL SUPPLY: 2.0V to 5.5V
INDUSTRY-STANDARD, TWO-WIRE
INTERFACE: 3.4MHz HIGH-SPEED MODE
HIGH ESD RATING:
4kV HBM, 1kV CDM, 200V MM
DEMO BOARD AND SOFTWARE AVAILABLE
REFH OUT
8.5V to 18V
2V to 5.5V
REFL
A0
LD
SCL
SDA
OUT1
OUT14
REFL OUT
OUT2
OUT13
V
COM1
V
COM2
D
Control IF
…
…
14 Output Channels plus
Two V
COM
Channels
BUF16820
D
…
O
Digital
Analog
REFH
P
APPLICATIONS
REPLACES RESISTOR-BASED GAMMA
SOLUTIONS
TFT-LCD REFERENCE DRIVERS
DYNAMIC GAMMA CONTROL
DESCRIPTION
The BUF16820 is a programmable voltage reference
generator designed for gamma correction in TFT-LCD
panels. It provides 14 programmable outputs and two
V
COM
channels, each with 10-bit resolution. It offers
on-chip, one-time programmable (OTP) memory that
allows the user to store the gamma voltages on-chip. This
eliminates the need for an external EEPROM.
This programmability replaces the traditional, time-
consuming process of changing resistor values to optimize
the various gamma voltages, and allows designers to
determine the correct gamma voltages for a panel very
quickly. Required voltage changes can also be easily
implemented without changing the hardware.
The BUF16820 uses TI’s latest, small-geometry analog
CMOS process, which makes it a very competitive choice
for full production, not just evaluation.
Programming of each output occurs through an industry-
standard, two-wire serial interface. Unlike existing
programmable buffers, the BUF16820 offers a high-speed
mode that allows clock speeds up to 3.4MHz.
For devices with a lower or higher channel count, please
contact your local sales or marketing representative.
The BUF16820 is available in an HTSSOP-32
PowerPAD
package. It is specified from 40
°
C to +85
°
C.
BUF16820 RELATED PRODUCTS
FEATURES
18-Channel Programmable, Two V
COM
Channels, Memory
12-Channel Programmable Buffer, 10-Bit
Programmable V
COM
10 + 1 Channel Gamma Buffer, 22V Supply Voltage
Complete LCD DC/DC Solution
PRODUCT
BUF20820
BUF12800
BUF01900
BUF11705
TPS651xx
BUF16820
SBOS356A FEBRUARY 2006 REVISED OCTOBER 2006
14-Channel GAMMA VOLTAGE GENERATOR
with Programmable V
COM
Outputs and OTP Memory
BUF16820
!
!
www.ti.com
Copyright
2006, 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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| BUF20820AIDCPR | 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 |
|---|---|
| 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(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 |
| 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 |
| BUF16821AIPWPR | 功能描述:LCD Gamma緩沖器 Progammable Gamma Vltg Gen & Vcom Cal 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 |
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