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EM8470 Schematic ( PDF Datasheet ) - Sigma Designs

Teilenummer EM8470
Beschreibung (EM8470 - EM8476) MPEG - 4 DECODER FOR SET-TOP DVD AND STREAMING APPLICATIONS
Hersteller Sigma Designs
Logo Sigma Designs Logo 




Gesamt 12 Seiten
EM8470 Datasheet, Funktion
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
1Without 1/4 pixel and global motion compensation
Sigma Designs, Inc.
355 Fairview Way • Milpitas, CA, USA 95035 • Tel: 408.262.9003 • Fax: 408.957.9740
www.sigmadesigns.com • [email protected]
www.DataSheet.in






EM8470 Datasheet, Funktion
EM8470, EM8471, EM8475, EM8476
Local Bus Controller Interface
The Local Bus Controller (LBC) interface, supported on the
EM8475 and EM8476, is a versatile block, designed to inter-
face the DRAM controller and PCI interface to an external
device, such as a non-PCI MPEG encoder chip. The LBC is
designed to handle DMA transfers (FIFO read/write from the
DRAM) and single register read/write from the external
device to or from the PCI interface. The same DMA transfers
and register read/write operations can be done from the
external device to or from the DRAM controller within the
EM8475 and EM8476.
The LBC interface is compatible with the 16-bit multiplexed
address / data format (Intel format), 16-bit data and 8-bit
address format (generic format) and 16-bit compressed data
format. It also directly supports the Stream Machine SM2210
/ 2288 MPEG codecs.
PCI Host Interface
The PCI interface is the main conduit between the EM847x
and the host processor. It is designed for both master reads
and writes with programmable burst length and is PCI v2.1
compliant. The PCI interface supports 3.3V and 5V operation
and ACPI power management from the PCI v2.2 specifica-
tion.
VOD Client Software (ISMA, RTSP)
VOD client software for the x86 is available that supports
RTSP-based ISMA streaming.
IP Multicasting Client Software
IP multicasting client software for the x86 is available.
MPEG-4 Client System Software
Third party x86 client software is available that supports the
EM847x, including Envivio and iVAST. For the latest list,
please check with your local sales representative.
Memory Requirements
The EM847x requires a minimum of 4 MB (1Mb x 32) of 100
MHz SDRAM.
Additional Software Available
VOD Client Software (MPEG-2)
VOD client software for the x86 is available that supports
select MPEG-2 video servers, including:
• Cisco's IPTV family
• Concurrent's MediaHawk
• InfoValue’s MediaQuick
• Kasenna’s MediaBase
• nCUBE's NVS
• Streaming21's Media Server
• Thirdspace’s OVS (Oracle Video Server)
For the latest list, please check with your local sales repre-
sentative.
-6-
www.DataSheet.in
Sigma Designs, Inc.
355 Fairview Way • Milpitas, CA, USA 95035 • Tel: 408.262.9003 • Fax: 408.957.9740
www.sigmadesigns.com • [email protected]

6 Page









EM8470 pdf, datenblatt
EM8470, EM8471, EM8475, EM8476
Product Selection Guide
Feature
Media Formats
DVD-Video, Superbit DVD, SVCD, VCD 1.x, VCD 2.0, audio CD
Video Decoding
MPEG-1, MPEG-2 MP@ML, MPEG-4 Advanced Simple Profile Level 53
Audio Decoding
Dolby Digital, MPEG-1 Layers 1 and 2
MPEG-4 High Quality Profile Level 2
Digital Video Inputs
8- / 16-bit YCbCr (80 MHz)
Digital Video Outputs
8- / 16-bit YCbCr (80 MHz)
24-bit RGB for DVI / HDCP support (80 MHz)
NTSC/PAL Composite and S-video Outputs
Macrovision v7.1 protection
YPbPr or RGB Analog Video Outputs
Macrovision AGC v1.03 protection for 480p output mode
Audio Inputs and Outputs
Stereo analog output
S/PDIF / I2S digital output
I2S digital input
Local Bus Interface
Package
Power Supply
EM84701
yes
yes
yes
yes
-
yes
-
yes
yes
-
-
-
yes
-
-
208 PQFP
2.5v / 3.3v
1May be sampled or sold only to companies that are both Macrovision and Dolby licensed.
2May be sampled or sold only to companies that are Dolby licensed.
3Without 1/4 pixel and global motion compensation.
EM84712
yes
yes
yes
yes
-
yes
-
yes
-
-
-
-
yes
-
-
208 PQFP
2.5v / 3.3v
EM84751
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
328 BGA
2.5v / 3.3v
EM84762
yes
yes
yes
yes
yes
yes
yes
yes
-
yes
-
yes
yes
yes
yes
328 BGA
2.5v / 3.3v
Copyright © 2002 by Sigma Designs, Inc. All rights reserved. Sigma Designs, REALmagic and the REALmagic logo are either registered trademarks or trademarks
of Sigma Designs, Inc. in the United States and/or other countries. Manufactured under license from Dolby Laboratories and Macrovision. Dolby and the double-D
symbol are trademarks of Dolby Laboratories. All other trademarks or registered trademarks are the property of their respective owners.
Sigma Designs products are sold by description only. Sigma Designs reserves the right to make changes in circuit design and / or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Sigma Designs is believed to be
accurate and reliable. However, no responsibility is assumed by Sigma Designs or its subsidiaries for its use; nor for any infringements of patents or other rights of
third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Sigma Designs or its subsidiaries.
Sales Offices
UNITED STATES
Sigma Designs, Inc.
355 Fairview Way
Milpitas, CA 95035
+1 (408) 262-9003
+1 (408) 957-9740 FAX
JAPAN
Sigma Designs Japan
4-16-8 Nakahara,
Mitaka-shi,
Tokyo 181-0005, Japan
+81 422 79 3067
+81 422 79 3067 FAX
CHINA
Sigma Designs China
Room C1, 32F
Electronic Science & Technology Building (Phase 2)
30 Shennan Road Central
Shenzhen, PRC
Postcode 518031
+86 755 3683878
+86 755 3683873 FAX
KOREA
Sigma Designs Korea
# 801, Dongil Techno Tower B/D
Kuro-dong, Kuro-gu,
Seoul, Korea
+82 11 288 0406
+82 2 3281 2034 FAX
EUROPE
Sigma Designs, Inc.
49, Rue des Moissonneurs
Brussels, Belgium 1040
+32 496.501234
+32 234.72260 FAX
HONG KONG
Sigma Designs (Asia) Ltd.
Unit 1516, Tower 1, Metroplaza
223 Hing Fong Road
Kwai Fong, N.T.
Hong Kong
+852 2401 7388
+852 2610 2177 FAX
TAIWAN
Sigma Designs Taiwan
Far East World Center, C Tower
8F-8, No. 79, Sec. 1
Hsin Tai Wu Road
Hsichih, Taipei Hsien
Taiwan, R.O.C.
+886 2 2698 2066
+886 2 2698 2099 FAX
Revision Date: March 18, 2002
Sigma Designs, Inc.
355 Fairview Way • Milpitas, CA, USA 95035 • Tel: 408.262.9003 • Fax: 408.957.9740
www.sigmadesigns.com • [email protected]
www.DataSheet.in

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