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MAX9679A
19-5760; Rev 0; 7/11 EVAALVUAAILTAIOBNLEKIT
12-Channel, 10-Bit Programmable Gamma and VCOM Reference Voltages
General Description
The MAX9679A provides multiple programmable reference voltages for gamma correction in TFT LCDs and a programmable reference voltage for VCOM adjustment. All gamma and VCOM reference voltages have a 10-bit digital-to-analog converter (DAC) and high- current buffer, which reduces the recovery time of the output voltages when critical levels and patterns are displayed. A programmable internal reference sets the full-scale voltage of the DACs.
Two independent sets of gamma curves and VCOM codes can be stored in the IC's volatile memory; BKSEL signal selects between the two sets.