[REALTEK]

General Description
The Realtek RTD2020 is a highly-integrated single chip IC controller solution for producing real time, top quality digital video and computer graphic images on LCD monitor/flat panel displays, such as XGA LCD monitors. LCD monitors and flat panel displays provide a sharp, flicker free display while saving space and energy for desktop PC applications. The RTD2020 provides an ideal interface between industry standard digital graphics controllers and a wide variety of LCD panel devices. Flat panel devices using the RTD2020 can support all incoming VESA modes and interface to any TFT LCD device, up to SXGA (1280x1024) resolution.
For increased flexibility, the RTD2020 supports both analog and digital interface inputs. The embedded 8-bit triple-channel 140MHz high-quality Analog to Digital Converter (ADC) and PLL support up to a 1280x1024 75Hz RGB analog input signal. The digital interface can support Transmission Minimized Differential Signaling (TMDS) receiver or Video-Decoder or DVO digital output signals up to 160MHz.

FEATUREs
General
• Integrated Spread-Spectrum DCLK PLL
• Integrated 8-bit triple-channel 140MHz ADC/PLL
• Integrated programmable timing controller
• Integrated microcontroller compatible with the standard 8032
• 24 General-purpose input/outputs (GPIOs)
• Embedded fully functional multi-language OSD support
• Embedded DDC supports DDC1, DDC2B, and DDC/CI
• Supports ISP functionality on DDC channel
• 3 Embedded programmable PWM
• Zoom scaling up and down
• Embedded Pattern Generator
• No external memory required
• Requires only one crystal to generate all timing

Analog RGB Input Interface
• Supports up to 140MHz (SXGA @ 75Hz)
• Supports Sync On Green (SOG) and de-composite sync modes
• On-chip high-performance PLLs

Digital Input Interface
• Supports 24-bit pixel digital input up to 160MHz
• Supports 12-bit DVO input
• Supports 16/24-bit YUV422/444 video format input
• Supports 8-bit video format input
• Built-in YUV to RGB color space converter & de-interlace
• Capture window auto position & auto phase tracking capability

Auto Detection /Auto Calibration
• Input format detection
• Compatibility with standard VESA mode and support for user-defined mode
• Smart engine for Phase and Image position calibration

Scaling
• Fully programmable zoom ratios
• Independent horizontal/vertical scaling
• Advanced zoom algorithm provides high image quality
• Sharpness/Smooth filter enhancement

Color Processor
• Digital brightness and contrast adjustments
• Gamma correction
• Dithering logic for 18-bit panel color depth enhancement

Output Interface
• Fully programmable, built-in display timing generator
• 1 and 2-pixel/clock panel support, up to 140MHz
• Pin swap, odd/even swap and red/blue group swap
• Programmable TCON function support
• Reduced EMI and Power saving features

Host Interface
• Supports 3/4 pins MCU serial bus interface
• Support parallel bus interface while using internal MCU

Embedded OSD
• 12*18 dot font per character
• Embedded 256 characters and symbols including 16 multi-color symbols
• User font RAM, which allows programming of 128 special symbols
• 7 background colors and 8 character colors
• Programmable width and height control
• 4 background windows
• Selectable shadow color for windows and characters
• Intensity, blinking effects
• Fade-in/out effect
• Frame shadowing and independent row shadowing
• Frame bordering and independent row bordering
• 4 channel 8-bits PWM output, and selectable PWM clock frequency
• Row-to-Row spacing to maintain constant display height
• Window alpha-blending effect

Power & Technology
• 2.5V/3.3V power supply
• 0.25µm CMOS process; 208-pin PQFP package