TW2851

4 Channel A/V Decoder with Multiplexer/VGA/ LCD Display Processor for Security Applications TW2851 The TW2851 is a fully integrated A/V decoder, multiplexer, and display processor chip. It has eight CVBS analog inputs fed into four internal high quality NTSC/PAL video decoders. It has four digital input ports supporting various type of input format, including four BT 656 inputs, two BT 601 inputs, or one 1120 playback input. It has one optional VGA display controller or LCD panel controller, two CVBS display, one digital SPOT output, two digital recorder outputs, and one digital display output. Every output has its associated graphic overlay function that displays bitmap for OSG, single box, 2D array box, borders, privacy mask, and mouse cursor. The four built-in video decoders include four antialiasing filters, 10bit Analog-to-Digital converters, proprietary digital gain/clamp controller, and high quality Y/C separator to reduce cross-noise. Associated with each video decoder, there ...