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| BCM7501 (R) SINGLE LINK DVI TRANSMITTER WITH HIGH-BANDWIDTH DIGITAL CONTENT PROTECTION FEATURES * * * * * * * * * * * * * Fully compliant with DVI 1.0 specification High-bandwidth Digital Content Protection (HDCP) Supports resolutions SDTV, HDTV, and VGA-UXGA Scalable bandwidth: 25-165 Megapixels per second (Mpps) Programmable clock, data timing (deskew) I2C slave programming interface Support for hot plug detection Low-power, 1.8V core Configurable I/Os 1V-1.8V DVO interface 1.8V, 3.3V CMOS interface Powerdown mode 12-bit and 24-bit input modes using single and dual edge clocking schemes SUMMARY OF BENEFITS * High bandwidth supports HDTV formats, including 1080i and 720p * Digital format provides for high-quality graphic images/ * * * * * overlays and low system cost HDCP secures protected video content as required by the Motion Picture Association of America (MPAA) Industry-standard interface transmits studio-quality video to any DVI/HDCP-enabled digital display from graphics cards, set-top boxes, DVDs, or any source of digital video content Unique HDCP implementation eliminates the need for an additional PROM, reducing overall system cost and complexity Adjustable slew rate control and voltage swing on Transition Minimized Differential Signal (TMDS) outputs allows for optimal drive configuration, reduced EMI, and increased cable lengths DVO and specialized interface modes reduce interface pin count DVI-Enabled Consumer Set-Top System Configuration Set-Top Box Smart Card CPU ROM, Flash, I/O SDRAM HDTV/ Digital Dispay Diplex Filter PA BCM7501 Cable/ Satellite Front End Video Graphics Engine Digital Video CMOS Tuner DVI Tx w/ HDCP I2C Bus DVI RX Audio Input Analog Video Out Audio Out OVERVIEW clk+/da[23:12] da[11:0] dectl[3:1] hsync vsync ddc_clk ddc_data PLL Serializer HDCP Engine Link Encoder Serializer txc0+ txc0txd0+ txd0txd1+ txd1txd2+ txd2- Input Format and Control I2C Interface Serializer The BCM7501 is part of Broadcom's family of video display products, and is a full rate, single link, DVI 1.0-compliant transmitter with HDCP content protection. The BCM7501 transmits digital video from a digital host such as a PC graphics card, set-top box, or DVD to a display such as an HDTV, flat panel display, or digital CRT. The DVI interface is uncompressed, low-cost, and digitally protected, making it ideal for Consumer Electronics (CE) applications. The BCM7501 transmits up to 165 Mpps of true color (24 bits/pixel) video supporting resolutions from VGA (640 x 480) to UXGA (1600 x 1200). This bandwidth supports all television formats (including HDTV) and does not require compression, which can cause loss in image quality. The state-of-the-art, on-chip Phase Locked Loop (PLL) provides highfrequency, low-jitter clock synthesis allowing full resolution, quality, and performance. The BCM7501 implements content protection of the TMDS link as described by the HDCP system specification (Digital Content Protection LLC at www.digital-cp.com). This feature allows for transmission of high-quality digital video, while satisfying the most stringent MPAA requirements and paving the way for Hollywood studios to release their highest resolution content. HDCP uses keys in both ends of a DVI link to authenticate and encrypt/decrypt the data stream, providing a secure, physical link between the transmitter and receiver. The BCM7501 transmitter utilizes a unique method of handling HDCP keys that provides maximum security and reduces overall system cost. Designed by the world's leader in communications System-on-a-Chip circuits, the BCM7501 is a robust, highly-integrated device implemented in an advanced .18 process. The BCM7501 provides a secure, highbandwidth digital interface for current and next-generation highresolution products. Broadcom(R), the pulse logo, and Connecting everything(R) are trademarks of Broadcom Corporation and/ or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the property of their respective owners. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2004 by BROADCOM CORPORATION. All rights reserved. 7501-PB07-R 06/30/04 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com |
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