TW2824数据手册集成电路（IC）的视频处理规格书PDF

描述 Description

The TW2824 has four high quality NTSC/PAL video decoders, dual color display controllers and dual video encoders. The TW2824 contains four 10-bit analog-to-digital converters, proprietary digital gain/clamp controller, high quality Y/C separator to reduce cross-noise and high performance dual scaler to provide various pictures. Four built-in motion and blind detectors can increase the feature of the security system. The TW2824 has a flexible video display controller including QUAD and MUX basic functions. The TW2824 also has an excellent graphic overlay function which displays character/bitmap, box and mouse pointer. The TW2824 contains two video encoders with four 10-bit digital-to-analog converters for providing 2 composite or S-video outputs.

特性 Features

•Four Video Decoders
• Accepts all NTSC/PAL standard formats with auto detection
• Integrated four anti-aliasing filters and 10-bit CMOS ADCs
• High performance adaptive comb filters for all NTSC/PAL standards
• IF compensation filter for improvement of color demodulation
• PAL delay lines for correcting PAL phase errors
• Programmable hue, saturation, contrast, brightness and sharpness
• Dual high performance horizontal and vertical scaler for each channel.
• Four built-in motion detectors with 16x12 cells and blind detectors Dual Video Controllers
• Additional 1-channel digital input for playback or cascade operation
• Full live/strobe/switch function
• Auto sequence switch with 64 queues and/or manual switch by interrupt
• Various channel attribute control
• Image enhancement for still image
• High performance 2x zoom for horizontal and vertical direction
• Supports save and recall function
• Last image capture when video-loss
• Extendable to 8-/12-/16-channel video controller using cascade connection
• Path-to-path cascade
• Character/bitmap overlay for OSD
• 16 programmable single boxes
• 4 2D arrayed boxes for motion result display
• Mouse pointer overlay Dual Video Encoders
• 2 path digital outputs with ITU-R BT.656 standards
• 2 path analog outputs with all analog NTSC/PAL standards
• Supports CVBS or S-video for each path
• Programmable bandwidth for luminance and chrominance path
• Four 10-bit video CMOS DACs

应用 Application

• Analog QUAD/MUX system
• 4-/8-/16-channel DVR system
• Car rear vision system
• Hair shop system