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BUF22821 - Programmable Gamma-Voltage Generator

Description

The BUF22821 offers 22 programmable gamma channels, two programmable VCOM channels, and two static gamma channels.

It is ideal for the new 10-bit source drivers that require 22 gamma channels.

The final gamma and VCOM values can be stored in the on-chip, nonvolatile memory.

Features

  • 1.
  • 234 24-.

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Full PDF Text Transcription

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BUF22821 BUF22821 www.ti.com SBOS399D – JUNE 2007 – REVISED JULY 2011 Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory Check for Samples: BUF22821 FEATURES 1 •234 24-CHANNEL GAMMA – 22-CHANNEL PROGRAMMABLE – 2-CHANNEL STATIC GAMMA • 2-CHANNEL PROGRAMMABLE VCOM • 10-BIT RESOLUTION • 16x REWRITABLE NONVOLATILE MEMORY • TWO INDEPENDENT MEMORY BANKS • RAIL-TO-RAIL OUTPUT • LOW SUPPLY CURRENT: 0.5mA/channel • SUPPLY VOLTAGE: 9V to 20V • DIGITAL SUPPLY: 2V to 5.5V • I2C™ INTERFACE APPLICATIONS • TFT-LCD REFERENCE DRIVERS BKSEL Digital Analog (2.0V to 5.5V) (9V to 20V) 1 STATOUTH STATINH AVDD OUT1 DESCRIPTION The BUF22821 offers 22 programmable gamma channels, two programmable VCOM channels, and two static gamma channels.
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