MAX9669
PRODUCTION10-Bit Programmable Gamma Reference System with MTP for TFT LCDs
10-Bit DAC Resolution and MTP Memory Provides Nonvolatile Memory, Eliminating the Need for External EEPROM
- Part Models
- 2
- 1ku List Price
- price unavailable
Overview
- 16-Channel Gamma Correction, 10-Bit Resolution
- VCOM Driver
- Integrated MTP Memory
- Programmable VCOM Limits
- 200mA Peak Current on Gamma Channels
- 600mA Peak Current on VCOM Channel
- 1µs Settling Time
The MAX9669 outputs 16 voltage references for gamma correction in TFT LCDs and one voltage reference for VCOM. Each gamma reference voltage has its own 10-bit digital-to-analog converter (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 MAX9669 features integrated multiple-time programmable (MTP) memory to store gamma and VCOM values on the chip, eliminating the need for external EEPROM. The MAX9669 supports up to 100 write operations to the on-chip nonvolatile memory.
The gamma outputs can drive 200mA peak transient current and settle within 1µs. The VCOM output can provide 600mA peak transient current and also settles within 1µs. The analog supply voltage range extends from 9V to 20V, and the digital supply voltage range extends from 2.7V to 3.6V.
Gamma values and the VCOM value are programmed into registers through the I²C interface.
Applications
- TFT LCDs
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX9669ETI/V+ | LFCSP | ||
| MAX9669ETI/V+T | LFCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 18, 2021 - 2161 ASSEMBLY |
||
| MAX9669ETI/V+ | PRODUCTION | |
| MAX9669ETI/V+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| Level Translators & Buffers 3 | ||
| MAX9590 | Obsolete | 14 Programmable Gamma Reference Buffers with 4 Static References for TFT-LCD Displays |
| MAX9591 | Obsolete | 14 Programmable Gamma Reference Buffers with Four Static References for TFT-LCD Displays |
| MAX9694 | Obsolete | 14 Programmable Gamma Reference Buffers with Four Static References for TFT LCDs |
| Product 1 | ||
| MAX5679 | Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference | |
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