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AAT1314 Datasheet Programmable Gamma And Vcom Buffers

Manufacturer: Advanced Analog Technology

Overview: Advanced Analog Technology, Inc. June 2014 AAT1314 Product information presented is for internal use within AAT Inc. only. Details are subject to change without notice.

General Description

The AAT1314 provides a 14-channel programmable gamma reference and a programmable V reference for applications in TFT LCD Panel.

Each of the 14-channel gamma reference voltage is generated using a 10-bit digital-to-analog converter (DAC) together with a buffer via I2C control.

The 14-channel gamma references support dynamic switching between two gamma curves by selecting between two different Banks of data via BKSEL select pin.

Key Features

  • Fully I2C Interface Control.
  • Input Supply Voltage Range.
  • 2.3V to 3.6V Logic Supply Range.
  • 6.5V to 18V Analog Supply Range.
  • 14-Channel Programmable Gamma Buffers.
  • 10-Bit, 1024-Step Resolution.
  • ±100mA Output Short Circuit.
  • 10V/μs Slew Rate.
  • Bank Selection.
  • REF Voltage for High Accuracy DAC reference.
  • 1-Channel Programmable VCOM Buffer.
  • 7-Bits, 128-Step Adjustable Sink Current Output.
  • ±200mA Output Short Circuit.
  • 20V/μs Slew Rat.

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