[Sigma Designs, Inc.]

描述 Description

The EM847x family is a single-chip MPEG audio/video decoder that supports DVD-Video, Superbit? DVD, SVCD, VCD and audio CD media formats. Video decoding support includes MPEG-1, MPEG-2 MP@ML and MPEG-4 advanced simple video profile Level 51. Audio decoding support includes Dolby? Digital, MPEG-1 Layers 1 and 2, MPEG-4 high quality profile Level 2, and 16-bit linear PCM. DVD-Video support includes hardware CSS decryption, 16:9 and 4:3 aspect ratios, letterboxing, 3:2 pull-down, multiple angles and sub-picture.

Common Features

? Pin and functionally compatible with EM8400 (EM8470 and EM8471 only)

? Compatible with MPEG-4 Client Players from Envivio and iVAST and a wide variety of MPEG-2 video servers

? Supports ISMA and MPEG-2 streaming formats, IP multicasting

? Supports DVD-Video, Superbit DVD, SVCD, VCD, audio CD media formats

? MPEG-1, MPEG-2 MP@ML, MPEG-4 Advanced Simple Profile Level 51 video decoding

? Dolby Digital, MPEG-1 Layers 1 and 2, MPEG- 4 High Quality Profile Level 2, and linear PCM audio decoding

? Programmable display output with improved scaling up to 1920x1080 resolution, interlaced or progressive, up to 120 Hz refresh

? 2-, 4-, 7- or 8-bit OSD with optional run-length compression, alpha blending and flicker filtering

? 80 MHz digital video output interface: 8- or 16- bit CCIR 601 / 656 YCbCr

? Improved NTSC/PAL composite and s-video outputs with optional Macrovision v7.1 protection and VBI data support (10-bit DACs)

? Digital audio output interface: I2S for PCM or S/PDIF (IEC 60958) for PCM, compressed Dolby Digital and compressed DTS

? Improved PCI v2.1 bus master / slave interface supports both read and write operations

? 2.5V core with 3.3V I/O (5V tolerant) for low power operation

? Package: 208 PQFP for EM8470 and EM8471 (pin compatible with EM8400), 328 BGA for EM8475 and EM8476

EM8475 / EM8476 Features

? Digital audio input interface: I2S

? 80 MHz digital video input interface: 8- or 16-bit CCIR 601 / 656 YCbCr supporting resolutions up to 1920x1080i

? 80 MHz 24-bit digital RGB output interface for DVI with HDCP support

? Interlaced or progressive analog RGB or YPbPr video outputs with optional Macrovision AGC v1.03 protection and VBI data support (10-bit DACs)

? Stereo audio DACs

? Flexible Local Bus interface

Applications

? Consumer products needing PVR and playback of video-on-demand (VOD), streaming video, progressive DVD

? Set-top boxes, media/home gateways, video end points, convergence appliances