BCM7420

Multiformat Dual HD Digital Video/Audio with Embedded MoCA® for Satellite, IP, and Cable DVR STBs

The BCM7420 redefines media center system integration: a MoCA® modem for home networking, 1080p60 quality video, a 1500-DMIPS (Millions of Instructions per Second) CPU, a dual-channel high-definition video decoder (H.264,VC-1, MPEG-2, MPEG-4 Part 2, H.263, and DivX), mosaic video support, a dual-channel multifunction audio decoder, PC class 2D and 3D graphics processing, high-quality video scaling and motion-compensated deinterlacing, seven video DACs, dual-stereo high-fidelity audio DACs, and a suite of peripherals providing a variety of set-top box control functions -all under the oversight of a dynamic power controller for energy efficiency. The BCM7420 supports either DDR2 or DDR3 memory architectures future-proofing the system design. The BCM7420 also contains a programmable security processor and transport engine making the solution perfect for cable, satellite, IP, digital TV and retail business models.

The integrated 1.0/1.1+ MoCA Modem, PHY and on-chip RF transceiver incorporates a 200-DMIPS CPU, 256 QAM for bit loading and an extended frequency range. All flow control and processing is offloaded from the host processor. Support is included for Low-RF mode. The modem is driven by a dedicated on-chip Gbit Ethernet MAC for efficient data transfers and address learning, thereby achieving maximum actual system throughput. When used in conjunction with other Broadcom-enabled devices, additional performance can be realized. The controller is field-programmable, allowing the service provider to tune performance for unique circumstances. When paired with a BCM3450 power amplifier/low-noise filter, it forms a direct connection to a MoCA network.

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