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MAX9672 - Programmable Gamma Reference Systems

General Description

The MAX9672/MAX9673/MAX9674 output 12/14/16 voltage references for gamma correction in TFT LCDs and one voltage reference for VCOM.

Each gamma reference voltage has its own 10-bit DAC and buffer to ensure a stable voltage.

Key Features

  • o DAC Reference Input o 12/14/16-Channel Gamma Correction, 10-Bit Resolution o VCOM Driver o Integrated MTP Memory o Programmable VCOM Limits o 200mA Peak Current on Gamma Channels o 600mA Peak Current on VCOM Channel Ordering Information PART GAMMA.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-4718; Rev 4; 2/11 EVAALVUAAILTAIOBNLEKIT 10-Bit, Programmable Gamma Reference Systems with MTP for TFT LCDs MAX9672/MAX9673/MAX9674 General Description The MAX9672/MAX9673/MAX9674 output 12/14/16 voltage references for gamma correction in TFT LCDs and one voltage reference for VCOM. Each gamma reference voltage has its own 10-bit DAC and buffer to ensure a stable voltage. The VCOM reference voltage has its own 10-bit DAC and an amplifier to ensure a stable voltage when critical levels and patterns are displayed. The MAX9672/MAX9673/MAX9674 feature integrated multiple-time programmable (MTP) memory to store gamma and VCOM values on the chip, eliminating the need for external EEPROM. The MAX9672/ MAX9673/MAX9674 support up to 300 write operations to the on-chip nonvolatile memory.