Key features:
Analog video decoder
NTSC (Male, 4.43) and PAL (B, D, G, H, I, M, N, N Combination), PAL (60), SECAM automatic format detection
Three 10-bit ADCs and analog clamping circuitry
Fully programmable static gain or automatic gain control for Y or CVBS channels
White peaks are Y or CVBS channel programmable control
Software selectable analog inputs
High quality NTSC and PAL input adaptive 2D comb filter
PAL color phase error correction delay line
2D dynamic images enhance peaks and CTI
Digital subcarrier PLL for accurate color decoding
Advanced synchronization of digital phase-locked loop levels and VCR replay and weak signal performance
Programmable hue, brightness, saturation, contrast and sharpness
High-quality horizontally and vertically filtered at any scale drop scale zoom analog RGB input
Triple high-speed 10-bit ADC with clamping and programmable gain amplifier.
Special one-time allocation and H/V synchronization support YPbPr or RGB inputs
Built-in locking line PLL synchronous splitter
Supports analog input resolution to 1080i or WXGADIGITAL input support
Support BT.656 video format TFT panel support
Built-in programmable timing controller
Supports 3, 4, 6 or 8 bits of the built-in jitter engine 168,000 colors per pixel
Digital panel with supported WVGA/SVGA resolution
Support serial (8-bit) RGB panel, screen display
6912 bytes of programmable font RAM and 256 display RAM
OSD with border/shadow for four window fonts
1/2/3/4 bit/pixel
Supports image processing with variable width (12/16) and height (2 to 32).
High-quality scaling, up/down, and non-linear scaling support
Panorama/glass water zoom
Built-in 2D deinterlacing
Programmable hue, brightness, saturation, contrast and sharpness
Programmable planting of input video and graphics
Independent RGB gain and offset control
Panorama/glass water zoom
8-bit programmable gamma correction for each color
Operate in frame synchronization mode
Black/white bouncy clock generation
Spread spectrum clock
Modulation Frequency and Diffusion Width Selectable Timing Controller (TCON)
Support programmable timing control interface signals
MCU for column (source) driver/row (gate) driver
Based on industry standard 8052
Read from external SPI flash memory code
512B XDATA Storage Power Management
Supports function-based independent power-off
1.8 / 3.3 V Operation Miscellaneous
Supports 2-wire serial bus interface
Built-in 2-channel auxiliary ADC input
Single 27MHz crystal
80-pin LQFP package
description
The TW8830 incorporates many of the features needed to create a multi-function video doorbell intercom in a single package LCD display system. It integrates a high-quality 2D comb NTSC/PAL/SECAM video decoder, ADC with triple high-speed RGB, high-quality scaling, image enhancement, which includes bounce and gamma correction for black and white. It also supports panoramic zoom that converts to a widescreen display. The TW8830 supports a wide range of input combinations: CVBS input, S-video, analog RGB and digital BT.656. On the output side, it supports multiple digital panel types, with its built-in timing controller. TW6865