march 2 7 , 2013 1 fn 8291 .1 caution: these devices are sensitive to electrostatic discharge; follow proper ic handling procedures. 1 - 888 - intersil or 1 - 888 - 468 - 3774 | copyright intersil americas l lc 2013 . all rights reserved intersil (and design) is a trademark owned by intersil corporation or one of its subsidiaries. all other trademarks mentioned are the property of their respective owners. techwell ? hd/sd dvr video port expander TW2828 tw 2828 is a display and recording mux chip with hd spot capability designed to work with popular h. 264 codec on the market today. TW2828 provides a clean and cost effective mux solution to the multi - channel pc hd dvr marketplace. on the embedded dvr mark et, using TW2828 in conjunction with a host soc can deliver the most cost effective solution on the m arket. digital input ports four byte interleaved bt.656 ports each supporting up to 4 sd (108 mhz) and 4 960h (144 mhz) signals for a total of 16 sd video input signals five frame interleaved bt.1120 ports, each supporting up to 148.5 mhz for a total of 20 hd signals. one port (pb5) is shared with gpio port four frame interleaved bt.656 ports (shared with the lower half of the bt.1120 port) , supporting up to 1 6 sd (or 960h) signals in frame/field interleaved format supports input resizing, cutting and cropp ing supports channel cascading display controller supports popular sizes such as: 1920x1080i50, i60, 1920x1080p50 or p60,720p50 and p60 max p ixel clock : 148.5 mhz capable of displaying up to 36 sd channels by using byte interleaved inputs and frame interleaved inputs motion box (md) on all live channels selectable weave / 2d de - interlacing method for video quality enhancement up / down scaler for arbitrary windows size osd display layer for title and channel id single box displ ay for highlighting and mouse/ cursor overlay bt.1120 or digital rgb output interface analog vga output (shared with spot output) digital output port one bt. 1120 port to the backend chip digital rgb output (shared with bt.1120 port) spot d igital output (bt.656) through record (shared) pins with all the channels spot and record interface two spot port with integrated dac 1/4/9/16 format for each sd (or 960h) and hd channels supports anti - rolling display similar recording functions like tw2880 motion detection 16 sd / w d 1 (960h) mode size 16x12 720p hd mode 40x36 1080i hd mode 60x27 1080p hd mode 60x54 ddr2 interface supports 16 - bit ddr2 m emories running up to 333 mhz suppo rts dram density from 512mb to 1 gb host interface 8 - bit parallel host interface or i 2 c slave interface (shared pin) four i 2 c slave addresses on two separate pins for cascaded operation irqs package 18 mm x18mm 409 lfbga reliability reports are available from our website at: http://rel.intersil.com/reports/sear ch.php
TW2828 for additional products, see www.intersil.com/product_tree intersil products are manufactured, assembled and tested utilizing iso9000 quality systems as noted in the quality certifications found at www.intersil.com/design/quality inter sil products are sold by description only. intersil corporation reserves the right to make changes in circuit design, softwar e and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that data sheets are current bef ore placing orders. information furnished by intersil is believed to be accurate and reliable. however, no responsibility is assumed by intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which ma y result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiaries. for information regarding intersil corporation and its products, see www.intersil.com
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