BCM7520 features BCM7520 dvi rx with hdcp display controller output driver on- screen display microprocessor hdtv or digital display e 2 prom video host bcm7501 dvi tx with hdcp digital video system diagram ? industry-standard interface receives studio-quality video from any dvi/hdcp enabled video source, such as a pc, set-top box, dvd or game console. ? high bandwidth supports vga - uxga and all digital television formats, including 720p and 1080i. ? precise link synchronization provides optimal dual link performance when paired with a second BCM7520 dvi receiver. ? hdcp secures protected video content as required by the motion picture association of america (mpaa). ? digital, uncompressed format provides high-quality graphic images/overlays and low system cost. ? robust data recovery and channel synchronization ensure interoperability with a variety of dvi transmitters. ? flexible hdcp key storage eliminates cost and testability issues associated with physically protecting the external prom. summary of benefits BCM7520 dvi receiver with hdcp ? fully compliant with dvi 1.0 specification ? scalable bandwidth: 25 ? 165 mpps ? dual link capable for speeds up to 330 mpps ? high-bandwidth digital content protection (hdcp) ? precise bit recovery with 6x oversampling ? integrated line termination ? allows inter-channel skew up to 1.9 pixel clock cycles (11.5 ns at 165 mhz) ? staggered pixel outputs (reduced ground bounce) ? 24-bit, one pixel per clock, or 48-bit, 2 pixel per clock outputs ? programmable output drive currents ? secure, flexible hdcp key handling ? programmable hsync correction filter ? power down mode ? 100-pin, tqfp package ? low power, 1.8v core ? 3.3v cmos i/os product p r o d u c t brief b r i e f BCM7520 ?
the BCM7520 , a member of broadcom?s family of display products, is a full-rate, dvi 1.0-compliant receiver with high- bandwidth digital content protection (hdcp). the BCM7520 is a high performance and robust interface for computing and entertainment systems alike. the receiver provides a secure, transition minimized differential signaling (tmds ? ) link between a digital monitor or tv and any source of digital video content, such as a dvd player, digital set-top box or pc graphics card. the BCM7520 receives up to 165 megapixels per second (mpps) of true color, 24-bit video data supporting resolutions from vga (640 x 480) to uxga (1600 x 1200). this bandwidth supports all television formats, including hdtv, without requiring compression which can degrade image quality. for very high resolution displays or high refresh rates, the BCM7520 functions as a dual link receiver when paired with an additional BCM7520 . dual link capability supports resolutions at uxga and above. the BCM7520 includes integrated line termination to reduce communication impairments such as reflection, noise and ringing that can occur over the dvi cable. precise termination, low-jitter plls and 6x oversampling enable the BCM7520 to provide exceptionally accurate data recovery. additionally, the pixel alignment block corrects inter-channel skew up to 1.9 pixel clock cycles, making the BCM7520 an extremely robust receiver that inter-operates reliably with the bcm7501 and other dvi transmitters. hdcp encrypts data, allowing for the transmission of high- quality, uncompressed digital video while satisfying mpaa security requirements. hdcp uses keys in both the transmitter and receiver to authenticate and encrypt/decrypt the data stream, providing a secure, physical link between the transmitter and receiver. the BCM7520 utilizes a unique method of handling hdcp keys that provides maximum security without compromising testability. designed by the world?s leader in communications system-on-a- chip circuits, the BCM7520 is a secure, robust, .18m dvi receiver, ideal for current and next-generation high-resolution display products. BCM7520 overview hdcp engine output format and control e 2 prom ddc clk d1[23:0] sync/ctl channel and link deserializer and pixel alignment d2[23:0] clk rxd0+/- rxd1+/- rxd2+/- sampler sampler sampler data recovery and tmds decoder pll ? phone: 949-450-8700 fax: 949-450-8710 email: info@broadcom.com web: www.broadcom.com broadcom ? , the pulse logo and connecting everything ? are trademarks of broadcom corporation and/or its subsidiaries in the united states and certain other countries. tmds ? is a registered trademark of silicon image. all other trademarks are the property of their respective owners. broadcom corporation 16215 alton parkway, p.o. box 57013 irvine, california 92619-7013 ? 2003 by broadcom corporation. all rights reserved. 7520-pb03-r-06.25.03
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