EM8470 Datasheet, PDF (1/12 Pages) List of Unclassifed Manufacturers – MPEG - 4 DECODER FOR SET-TOP DVD AND STREAMING APPLICATIONS

EM8470 EM8475
EM8471 EM8476
MPEG-4 Decoder for Set-top, DVD and Streaming Applications
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 decryp-
tion, 16:9 and 4:3 aspect ratios, letterboxing, 3:2 pull-down, multiple angles
and sub-picture.
Based on the company’s award-winning REALmagic^® Video Streaming Tech-
nology, the EM847x family provides highly-integrated solutions for high-qual-
ity decoding of MPEG-1, MPEG-2 and MPEG-4. Positioned as a cost-
effective solution for streaming video clients, advanced digital set-top boxes
and next-generation interactive DVD players, the EM847x enables manufac-
turers to easily incorporate streaming video, progressive DVD playback and
video-on-demand into their products.
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
Block Diagram
CCIR 601 / 656
8 / 16-BIT YC BCR
I2S
4 MB SDRAM
SDRAM CONTROLLER
AUDIO
VIDEO
INPUT
PORT
DVD
DECRYPT
MPEG
VIDEO
DECODER
ENGINE
AUDIO
DECODER
ENGINE
DISPLAY
CONTROL,
OSD,
SUB-
PICTURE
NTSC/PAL
ENCODER
VIDEO
DACS
AUDIO
DACS
LOCAL Bus
LOCAL BUS
CONTROLLER
PCI
HOST
INTERFACE
CVBS
S-VIDEO
ANALOG RGB / YP BPR
24-BIT RGB,
8 / 16-BIT YC BCR
STEREO AUDIO
I2S OR SPDIF
PCI
Lightly shaded blocks are only available on the EM8475 and EM8476
1_{Without 1/4 pixel and global motion compensation}
Sigma Designs, Inc.
355 Fairview Way • Milpitas, CA, USA 95035 • Tel: [phone] • Fax: [phone]
www.sigmadesigns.com • [e-mail]