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Digital STB-on-a-chip delivers 65nm advantages

Posted: 14 Sep 2007 ?? ?Print Version ?Bookmark and Share

Keywords:65nm SoC solution? IP STBs? HD networking? Fast Ethernet?

Broadcom Corp. says it has developed the industry's most advanced 65nm SoC solution designed for use in next-generation cable, satellite and IP STBs. Dubbed the BCM7405, the digital STB-on-a-chip is said to deliver high levels of processor performance, memory bandwidth, graphics speed, system security and peripheral integration.

"With the BCM7405, Broadcom will enable a new generation of IP, cable and satellite STBs with a wider array of features and applications that will change the way consumers experience and share TV," said Dan Marotta, senior VP and general manager at Broadcom's broadband communications group.

Technical details
The BCM7405 digital A/V SoC builds upon Broadcom's BCM740x family of AVC/VC-1 high-definition (HD) SoC solutions. It supports the latest in interactive features, a range of video compression standards (such as VC-1, WMV9, H.263-H.264, MPEG-4, DivX) and offers support for digital rights management solutions, including Microsoft DRM10, secure video processor (SVP) technology and Marlin JDA, a joint development association formed by Intertrust Technologies, Matsushita Electric Industrial, Royal Philips Electronics, Samsung Electronics and Sony Corp.

Using a 1,000 DMips dual-core MIPS processor, the BCM7405's multistream HD networking capabilities, dual serial ATA-II interfaces and support for digital rights management solutions, make the BCM7405 well suited for media server applications that enable consumers to share and distribute their video content throughout their homes.

BCM7405 includes additional key features such as HD+SD simultaneous decode and very high performance graphics scaling, blitting and blending. It also features an extensive set of 65nm analog cores including dual serial ATA-II ports, Fast Ethernet PHY, triple USB 2.0 ports, HDMI 1.3, integrated video and audio DACs, an RF modulator and a UHF remote control receiver.

BCM7405 also offers PC client usage modes to support PC-oriented content viewing on TVs and a memory-to-memory DMA security module may be programmed for supporting different copy protection algorithms/standards (AES, 1DES, 3DES, CSS, CPRM, CPPM and DTCP). The device's standby modes that offer equipment vendors significant flexibility in configuring various low-power standby modes of operation, becoming a more important factor in STB design.

The BCM7405 SoC also features an integrated security processor with device personalization that provides real-time encryption and decryption for all content, home network and TV interfaces. Other key functions include 1Gbyte system memory support at up to 800MHz transfer rates and DDR Media Independent Interface for support of home networking chipsets.

The BCM7405 digital A/V SoC is now sampling to early access customers. Pricing is available upon request.

Broadcom provides a complete reference design for the BCM7405 (BCM97405) that includes support for cable, satellite and terrestrial tuners, Smart Card, CableCARD and DVB-CI interfaces, PCI and mini-PCI slots, and a number of test and debug interfaces. Broadcom also provides a complete set of software drivers and APIs and offers support for Linux and Microsoft Windows CE.

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