Description

The Realtek RTD2023-LF is an integrated single chip IC controller solution for producing real-time, high-quality digital video and computer graphic images on LCD monitors and flat panel displays. It provides an ideal interface between industry-standard digital graphics controllers and a wide variety of LCD panel devices, supporting all incoming VESA modes and interfacing with any TFT LCD device up to SXGA (1280x1024) resolution. The RTD2023-LF offers flexibility with support for both analog and digital interface inputs, with an embedded 8-bit triple-channel 140MHz high-quality Analog to Digital Converter (ADC) and PLL for analog input signals, and support for Transmission Minimized Differential Signaling (TMDS) receiver or Video-Decoder or DVO digital output signals up to 160MHz for digital interface.

Specifications and 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

Application Scenarios

The Realtek RTD2023-LF is widely used in the electronics industry for applications that require high-quality digital video and computer graphic images on LCD monitors and flat panel displays. It is commonly used in desktop PC applications, providing sharp, flicker-free displays while saving space and energy. With its support for various LCD panel devices and flexible interface options, it is suitable for a wide range of display applications.

Comparison

- Highly-integrated single chip IC controller solution - Supports analog and digital interface inputs - Wide compatibility with LCD panel devices - Supports all incoming VESA modes and up to SXGA resolution - Integrated Spread-Spectrum DCLK PLL for improved image quality - Embedded OSD support for multi-language display

- Requires additional external components for complete system implementation - Limited to a maximum resolution of SXGA (1280x1024)