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DS3514T+TR PDF预览

DS3514T+TR

更新时间: 2024-11-27 06:54:43
品牌 Logo 应用领域
美信 - MAXIM 可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数 文件大小 规格书
21页 339K
描述
I2C Gamma and VCOM Buffer with EEPROM

DS3514T+TR 数据手册

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Rev 1; 10/08  
2
I C Gamma and V  
Buffer with EEPROM  
COM  
DS3514  
General Description  
Features  
The DS3514 is a programmable gamma and V  
volt-  
COM  
10-Bit Gamma Buffers, 14 Channels  
8-Bit V Buffer, 1 Channel  
age generator that supports both real-time updating as  
well as multibyte storage of gamma/V data in on-  
COM  
COM  
chip EEPROM memory. An independent 10-bit DAC, two  
10-bit data registers, and four words of EEPROM memo-  
ry are provided for each individually addressable  
Four 10-Bit EEPROM Words per Channel  
Low-Power 400µA/ch Gamma Buffers  
gamma or V  
channel. High-performance buffer  
2
COM  
I C-Compatible Serial Interface  
amplifiers are integrated on-chip, providing rail-to-rail,  
low-power (400µA/gamma channel) operation. The  
2
Flexible Control from I C or Pins  
V
channel features a high current drive (> 250mA  
COM  
9.0V to 15.0V Analog Supply  
2.7V to 5.5V Digital Supply  
peak) and a fast-settling buffer amplifier optimized to  
drive the V  
node of a wide range of TFT-LCD panels.  
2
COM  
Programming occurs through an I C-compatible serial  
interface. Interface performance and flexibility are  
enhanced by a pair of independently loaded data latch-  
48-Pin TQFN Package (7mm x 7mm)  
2
es per channel, as well as support for I C speeds up to  
Ordering Information  
400kHz. The multitable EEPROM memory enables a  
rich variety of display system enhancements, including  
support for temperature or light-level dependent  
gamma tables, enabling of factory or field automated  
display adjustment, and support for backlight dimming  
algorithms to reduce system power. Upon power-up  
and depending on mode, DAC data is selected from  
EEPROM by the S0/S1 pins or from a fixed memory  
address.  
PART  
TEMP RANGE  
-45°C to +95°C  
-45°C to +95°C  
PIN-PACKAGE  
48 TQFN-EP*  
48 TQFN-EP*  
DS3514T+  
DS3514T+T&R  
+Denotes a lead-free/RoHS-compliant package.  
T&R = Tape and reel.  
*EP = Exposed pad.  
Applications  
TFT-LCD Gamma and V  
Buffer  
COM  
Pin Configuration and Typical Operating Circuit appear at  
end of data sheet.  
Adaptive Gamma and V  
2
Adjustment (Real  
2
COM  
Time by I C, Select EEPROM Through I C or  
S0/S1 Pins)  
Industrial Process Control  
Gamma or V  
Channel Functional Diagram  
COM  
SDA, SCL  
2
I C  
LATCH A  
8-/  
10-BIT*  
DAC  
INTERFACE  
A0  
MUX  
LATCH B  
V
OUT  
IN  
OUT  
EEPROM  
ADDRESS  
S1/ S0  
LD  
LOGIC  
* 10 BITS FOR GAMMA CHANNELS, 8 BITS FOR THE V  
CHANNEL.  
COM  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  

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