MAX9679A
12-Channel, 10-Bit Programmable Gamma and VCOM Reference Voltages
Industry's Most Accurate Gamma Curve Reference System
製品の詳細
- 12 Channels of Programmable Gamma Voltages with 10-Bit Resolution
- Programmable VCOM Voltage with 10-Bit Resolution
- Programmable Reference for DACs
- Switching Between Two Gamma Curves and VCOM Voltages
- AVDD1, AVDD2, and AVDD_AMP Supplies to Reduce Heat
- I²C Interface (1MHz Fast-Mode Plus)
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.
Applications
- TFT LCDs
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