OVERVIEW

The BCM7452 is a high-definition satellite, cable, and IP set-top box DVR solution offering integrated AVC (H.264/MPEG-4 Part 10), MPEG-4 Part 2, MPEG-2, DivX (3.11, 4.11, 5x), and VC-1 video decoding technology. It combines a data transport processor, high-definition/standard-definition AVC/MPEG-2/VC-1 video decoder, advanced-audio decoder, 2D graphics processing, high-quality video scaling and motion adaptive deinterlacing, six video DACs, stereo high-fidelity audio DACs, a MIPS32/MIPS16e? class CPU, and a peripheral control unit providing a variety of set-top box control functions.

? Advanced HD AVC/MPEG-2/VC-1 decoder

? H.264/AVC main and high profile to level 4.1

? VC-1 simple, main, and advanced profile @ level 3

? MPEG4 Part 2, DivX? 3.11, 4.x, 5.x

? HD MPEG-2 and SD MPEG-2

? MPEG still-picture decode

? Advanced audio processor supporting the following:

? AAC LC, AAC LC+SBR level 2, AAC+ level 2

? Dolby? Digital, Dolby Digital Plus

? MPEG I layers 1, 2, and 3 (MP3)

? Windows Media? audio

? One pair of on-chip stereo high-fidelity audio DACs

? 3D SRS audio support

? One I2S input port and one I2S output port

? SPDIF output

? Advanced 2D-effects graphic engine

? Studio quality text and graphics at HD resolution

? Supports multiple layers and windows

? Digital noise reduction (DNR)

? Reduces MPEG artifacts including block noise reduction

? Reduces mosquito noise

? Motion-adaptive deinterlacer with reverse 3:2/2:2 pulldown

? Letterbox detection

? Multiple simultaneous, independent DVR channels

? OpenCable? ready with on-chip MPOD support

? 300-MHz MIPS32?/16e class processor

? 64-bit DDR DRAM controller

? 32-bit for SD AVC/VC-1 decode