tw2 824 4 - channel video quad/mux controller for security applications fn 7 738 rev. 0.00 page 1 of 2 f ebruary 2 , 2011 fn7738 rev. 0.00 february 2, 2011 data sh o r t t he 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, proprieta ry 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 flex ible 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 - analo g converters for providing 2 composite or s - video. 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 st andards ? 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. ? fou r built - in motion detectors with 16 x 12 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 an d/or manual switch by interr upt ? various channel attribute control ? image enhancement for still image ? high performance 2 x 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 usi ng cascade connection ? path - to - pa th 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 applications ? analog quad/mux syst em ? 4 - /8 - /16 - channel dvr system ? car rear vision system ? hair shop s ystem not recommended for new designs recommended replacement part tw2837 to request the full datasheet, please visit www.intersil.com/products/TW2824
for additional products, see www.intersil.com/product_tree intersil products are manufactured, asse mbled and tested utilizing iso9001 quality systems as noted in the quality certifications found at http://www.intersil.com/en/support/qualandreliability.html intersil products are s old by description only. intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such modification does not, in intersil's sole judgment, affect the form, fit or function of the produc t. accordingl y, the reader is cautioned to verify that datasheets are current before placing orders. information furnished by intersil is bel ieved to be accurate and reliable. however, no responsibility is assumed by intersil or its subsidiaries for its use; nor for an y infringements of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise und er any patent or patent rights of intersil or its subsidiaries. for information regardin g intersil corporation and its products, see http://www.intersil.com fn7738 rev.0.00 page 2 of 2 februar y 2, 2011 block diagram ? copyright intersil americas llc 2011 . all rights reserved. all trademarks and registered trademarks are the property of their respective owners. pbclk pbin pbvalid vdouty vin3b vin3a color decoder h/v scaler mux adc h/v scaler motion detect vin2b vin2a color decoder h/v scaler mux adc h/v scaler motion detect vin1b vin1a color decoder h/v scaler mux adc h/v scaler motion detect vin0b vin0a color decoder h/v scaler mux adc h/v scaler motion detect itu - r bt656 decoder voutyx addrx/ba1x/ba0x/rasbx/casbx/wenbx/dqmx/datax vdoutx voutcx 5 x 4 matrix memory interface dac osd box mouse overlay video encoder write control read control itu - r bt656 encoder dac 5 x 4 matrix memory interface dac osd box mouse overlay video encoder write control read control itu - r bt656 encoder dac clock generator clk54i irq irq interface host interface voutyy voutcy clk27encx clk27ency hspb hcsb0 hcsb1 hale hrdb hwrb hdat encoder timing interface hsenc vsenc fldenc addry/ba0y/rasby/casby/wenby/dqmy/datay
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