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MAX9667
Obsolete6/8/10-Channel, 10-Bit, Nonvolatile Programmable Gamma and VCOM Reference Voltages
Integrated Nonvolatile Programmable Gamma and VCOM Reference System for LCDs
Overview
- 6/8/10 Channels Gamma Correction, 10-Bit Resolution
- VCOM Driver
- Integrated Multiple-Time Programmable Memory
- DAC Reference Input
- Single-Wire and I²C Programming of VCOM Reference
- 950mA Peak Transient Current on VCOM Channel
The MAX9665/MAX9666/MAX9667 provide 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 buffer with high peak current. This reduces the recovery time of the output voltage when critical levels and patterns are displayed.
These devices include multiple-time programmable (MTP) memory to store gamma and VCOM codes on the chip, eliminating the need for external EEPROM. The MTP memory supports up to 300 write operations.
The MAX9665/MAX9666/MAX9667 feature an I²C interface to control the programmable reference voltages and a single-wire interface to toggle the VCOM reference voltage up or down.
Applications
- TFT LCDs
Documentation
This is the most up-to-date revision of the Data Sheet.
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