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Numéro de référence | ATT3209 | ||
Description | Temperature Compensating Gamma Trimster TM ATT3209 | ||
Fabricant | ETC | ||
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Preliminary Information
Temperature Compensating Gamma Trimster™ ATT3209
FEATURES
DESCRIPTION
The ATT3209 is a programmable gamma
• 9 Programmable Buffered Gamma
Correction Outputs (VGMA0 – VGMA8)
− VGMA Output Range 0 to 14V
− VGMA Output Accuracy Better Than 1% of
AVDD Reference
− VGMA Output Drive > 100µA
• Nonvolatile Storage of 32 Gamma
Reference Providing
− Dynamic Gamma Correction and Gamma
Correction Based on Programmed
Temperature Profiles
• 2 Programmable Buffered VCOM Outputs
• In System Programmability
reference that is designed to address gamma
correction in high-resolution LCD panels.
The gamma voltage out puts are programmable
with their individual output values saved in a
nonvolatile analog storage cell. The storage
cells are arranged in a 9 x 32 array allowing
thirty-two gamma correction profiles to be
stored. Depending upon the application
requirements the ATT3209 is configured to
provide either two or three temperature
compensated Bank Select outputs that would be
used to drive the respective Bank Select inputs
of the AGT3209 Gamma Trimster.
• Digital Programming Interface
APPLICATIONS
• Yield Improvement through Gamma
Programming at Test
• Simple Implementation of Dynamic Gamma
In addition to the VGMA outputs there are two
programmable VCOM outputs providing
independent multiple VCOM trim points to
minimize flicker on the LCD panel.
Compensation
• LCD Panel Color Calibration
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• Optimized Temperature Dependent Gamma
Correction
DataShee
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Proprietary and Confidential
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Typical Application
Rev 2/7/2005
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Pages | Pages 10 | ||
Télécharger | [ ATT3209 ] |
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