Maker : ETC
Part No. : ODM8211P

  Datasheet PDF : ODM8211P.pdf
  Cross Reference : ODM8211P Cross Reference
  Buy Component : ODM8211P Find Stock and Price

Shortcut : ODM8211P 

Product Information

An MPEG 2 Decoder Multichip Module for Digital TV and Multimedia Applications Cyrus Ghahremani, Dr. Arzu Simsek, Prof. Herbert Reichl Fraunhofer Institut für Zuverlässigkeit und Mikrointegration Gustav-Meyer-Allee 25 13355 Berlin Tel.: ++49 / 30 / 464 03 - 145 Fax: ++49 / 30 / 464 03 - 111 email: ghahri@izm.fhg.de Introduction The digitization of audiovisual and written information offers the possibility of joining them to one package and transmitting them via the same channel. Now these different kinds of information can be processed on computers and any other common hardware. Furthermore the user can interact with his system and manipulate the information instead of only consuming it. This conveniance means a high datarate to be transmitted and processed. So basing on the standard for teleconferencing H.261 and JPEG (Joint Photographic Experts Group) for images the Moving Pictures Experts Group (MPEG) established the standards MPEG 1 and MPEG 2. Especially MPEG 2 addresses different kinds of applications which can be used in portable and stationary systems for computers or in consumer products. As portability and more functionality are the main selling features the systems have to be miniaturized. To meet these demands Multichip Modules (MCM) are a suitable means of designing systems of small size with high functionality. In this paper an MCM for MPEG 2 decoding is presented. Possible Applications In 1994 MPEG published the final version of MPEG 2 „Information Technology - Generic coding of moving pictures and associated audio information; International standard / recommendation ISO / IEC 13818“. This standard covers all aspects of digital coding and transmission of audiovisual information and supports for different applications such as DVB (Digital Video Broadcast), DAB (Digital Audio Broadcast), DSS (Digital Satellite Services), DVD (Digital Versatile Disc) or Videoconferencing. Thus basing on the algorithms for data reduction described in the MPEG 2 standard subsystems for computers portable or stationary disc players codecs for handycams and for receivers for set-top-boxes and TV-sets can be designed. As the MPEG standards only describe the decoding algorithm and the bitstream organization parameters and features such as aspect ratio simulcasting audio formats and CA (Conditional Access) have to be regarded individually for the particular application. In Figure 1 the application areas for MPEG 2 Decoder MCM are shown. PC plug-in Cards (portable) DVD-Player PCMCIA-Cards for Notebooks DVD-MCM MPEG-Codec with DVD-Support MPEG 2 Codec MCM Figure 1: Applications with an MPEG 2 Decoder MCM Set-top-box with DVB and DSS MPEG 2 Decoder MCM An MPEG 2 Decoder MCM suitable for PC-Cards or portable devices can consist of the decoder chip, the memory (Figure 2) and if necessary a decryption engine for conditional access. MPEG 2 Decoder MCM Memory 16 MBit MPEG Data in MPEG 2 A/V Decoder Decompressed A/V Data out Figure 2: MPEG 2 Decoder MCM An area comparison between discrete SMT devices and bare dice mounted on a substrate shows that the size shrinks to a quarter. So the whole decoder systems can be placed into a package as large as the package of the discrete MPEG decoder chip as shown in Table 1 and Figure 3. CPD´98 2 Device MPEG Decoder DRAM 256k x 16 total area Quantity 1 5 IC area / mm2 900 5 x 286 = 1430 2330 Die area / mm2 129,96 5 x 27,15 = 135,75 265,71 Table 1: Area comparison packaged devices vs. bare dice 7,9 cm. 3,5 cm. DRAM DRAM 7,3 cm. MPEG 2 Decoder ODM8211P DRAM DRAM DRAM Micron DRAM 256k 16 Micron DRAM 256k 16 MPEG 2 Decoder ODM8211P Micron DRAM 256k 16 Micron DRAM 256k 16 Micron DRAM 256k 16 PCB: 57,67 cm2 Space ratio: 4:1 MCM: 13,65 cm2 Figure 3: Size comparison packaged devices vs. bare dice If placed into a PLCC package the MCM can be placed into a socket. Then it can be removed and replaced by an upgraded version. This can also be achieved by mounting Jleads on the edges of the s...

Link URL