DS3514T+TR MAXIM [Maxim Integrated Products], DS3514T+TR Datasheet

DS3514T+TR

Manufacturer Part Number

DS3514T+TR

Description

I2C Gamma and VCOM Buffer with EEPROM

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.DS3514TTR.pdf (21 pages)

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The DS3514 is a programmable gamma and V

age generator that supports both real-time updating as

well as multibyte storage of gamma/V

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

gamma or V

amplifiers are integrated on-chip, providing rail-to-rail,

low-power (400µA/gamma channel) operation. The

peak) and a fast-settling buffer amplifier optimized to

drive the V

Programming occurs through an I

interface. Interface performance and flexibility are

enhanced by a pair of independently loaded data latch-

es per channel, as well as support for I

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.

Rev 1; 10/08

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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SDA, SCL

* 10 BITS FOR GAMMA CHANNELS, 8 BITS FOR THE V

S1/ S0

channel features a high current drive (> 250mA

TFT-LCD Gamma and V

Adaptive Gamma and V

Time by I

S0/S1 Pins)

Industrial Process Control

COM

node of a wide range of TFT-LCD panels.

INTERFACE

C Gamma and V

C, Select EEPROM Through I

________________________________________________________________ Maxim Integrated Products

LOGIC

channel. High-performance buffer

General Description

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LATCH A

Applications

Buffer

Adjustment (Real

C-compatible serial

COM

CHANNEL.

C speeds up to

Gamma or V

ADDRESS

data in on-

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C or

EEPROM

volt-

OUT

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♦ 10-Bit Gamma Buffers, 14 Channels

♦ 8-Bit V

♦ Four 10-Bit EEPROM Words per Channel

♦ Low-Power 400µA/ch Gamma Buffers

♦ I

♦ Flexible Control from I

♦ 9.0V to 15.0V Analog Supply

♦ 2.7V to 5.5V Digital Supply

♦ 48-Pin TQFN Package (7mm x 7mm)

+ Denotes a lead-free/RoHS-compliant package.

T&R = Tape and reel.

* EP = Exposed pad.

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

DS3514T+

DS3514T+T&R

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C-Compatible Serial Interface

PART

MUX

Buffer with EEPROM

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Channel Functional Diagram

Buffer, 1 Channel

LATCH B

-45°C to +95°C

TEMP RANGE

Ordering Information

C or Pins

10-BIT*

DAC

8-/

PIN-PACKAGE

48 TQFN-EP*

Features

OUT

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