brief summary chrontel 209-0000-008 rev 1.2, 8/1/2000 1 ch7011a chrontel ch7011 tv output device features ? tv output supporting up to 1024x768 graphics resolutions ? macrovision tm 7.x copy protection support ? programmable digital interface supports rgb and ycrcb ? truescale tm rendering engine supports underscan in all tv output resolutions ? enhanced text sharpness and adaptive flicker removal with up to 7 lines of filtering ? support for all ntsc and pal formats ? provides cvbs, s-video and scart (rgb) outputs ? tv connection detect ? programmable power management ? 10-bit video dac outputs ? fully programmable through i 2 c port ? complete windows and dos driver support ? low voltage interface support to graphics device ? offered in a 64-pin lqfp package general description the ch7011 is a display controller device which accepts a digital graphics input signal, and encodes and transmits data to a tv output (analog composite, s- video or rgb). the device accepts data over one 12-bit wide variable voltage data port which supports five different data formats including rgb and ycrcb. the tv-out processor will perform non-interlace to interlace conversion with scaling and flicker filters, and encode the data into any of the ntsc or pal video standards. the scaling and flicker filter is adaptive and programmable to enable superior text display. eight graphics resolutions are supported up to 1024 by 768 with full vertical and horizontal underscan capability in all modes. a high accuracy low jitter phase locked loop is integrated to create outstanding video quality. support is provided for macrovision tm and rgb bypass mode which enables driving a vga crt with the input data. figure 1: functional block diagram pll rgb-yuv converter system clock yuv-rgb converter digital input interface i 2 c register & control block line memory true scale scaling & deflickering engine timing & sync generator ntsc/pal encoder & filters d[11:0] pixel data xclk/xclk* h v xi/fin xo p-out sc sd reset* bco iset csync gpio[1:0] y/r cvbs/b c/g cvbs four 10-bit dac?s
chrontel 2210 o?toole avenue san jose, ca 95131-1326 tel: (408) 383-9328 fax: (408) 383-9338 www.chrontel.com e-mail: sales@chrontel.com 1998 chrontel, inc. all rights reserved. chrontel products are not authorized for and should not be used within life support systems or nuclear facility applications wit hout the specific written consent of chrontel. life support systems are those intended to support or sustain life and whose failure to p erform when used as directed can reasonably expect to result in personal injury or death. chrontel reserves the right to make changes at any time without notice to improve and supply the best possible product and is not responsible and does not assume any liability for misapplication or use outside the limits specified in this document. we provi de no warranty for the use of our products and assume no liability for errors contained in this document. printed in the u.s.a. ordering information part number package type number of pins voltage supply CH7011A-T lqfp 64 3.3v 209-0000-008 rev 1.2, 8/1/2000 2 chrontel ch7011a
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