Techwell Mixed Signal Semiconductor Solutions TECHWELL SECURITY Security Surveillance IC Solutions Features TW2824 4 Channel Video QUAD/MUX Controller For Security Applications Target Applications Quad/Mux Systems 4/8/16 channel DVR System Car Rear Vision System Four Video Decoders Accepts all NTSC/PAL standard formats with auto detection Four integrated 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 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 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 security systems. The TW2824 has a flexible video display controller to support basic QUAD and MUX 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. 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 Techwell Mixed Signal Semiconductor Solutions www.techwellinc.com Security Surveillance IC Solutions TW2824 4 Channel Video QUAD/MUX Controller For Security Applications TW2824 Block Diagram ADDRX/BAIX/BA0X/RASBX/CASBX/WENBX/DQMX/DATAX PBCLK PBIN PBVALID ITU-R BT656 Decoder H/V Scaler MUX ADC Color Decoder VIN0B H/V Scaler 5X4 Matrix VIN0A Motion Detect Write Control Read Control H/V Scaler VIN1A MUX ADC Color Decoder VIN1B OSD Box Mouse Overlay Video Encoder DAC VOUTYX DAC VOUTCX ITU-R BT656 Encoder VDOUTX Encoder Timing Interf r ace HSENC VSENC FLDENC ITU-R BT656 Encoder VDOUTY H/V Scaler Motion Detect H/V Scaler VIN2A MUX ADC Color Decoder VIN2B H/V Scaler 5X4 Matrix Motion Detect H/V Scaler VIN3A MUX ADC Color Decoder VIN3B HSPB HCSB0 HCSB1 HALE HRDB HWRB HDAT Memory Interface Write Control Read Control H/V Scaler OSD Box Mouse Overlay Video Encoder DAC VOUTYY DAC VOUTCY Motion Detect Memory Interface HOST Interface IRQ Interface IRQ Clock Generator ADDRY/BA0Y/RASBY/CASBY/WENBY/DQMY/DATAY CLK27ENCX CLK27ENCY CLK54I About Techwell Techwell designs and sells mixed signal semiconductor solutions for digital video applications.The company's products enable the conversion of analog video sources to digital form and facilitate the display, storage and transport of digital video, HDTV, and personal computer display information. Headquartered in San Jose, CA, Techwell currently has over 60 employees in the U.S., Korea, and Taiwan. Techwell Mixed Signal Semiconductor Solutions For more information on Techwell, please contact us at 1-408-435-3888 © 2005 Techwell Inc. All rights reserved. All other trademarks are property of their respective owners TECHWELL INC. TEL 1-408-435-3888 www.techwellinc.com