High Performance Encoding
MPEG-2 Enhanced IPB Encoder Chip Set
The ME31 Encoder Chip Set provides
MPEG-2 encoding of digital video with
enhancements to allow for function
beyond the MPEG-2 Main Profile at Main
Level standard. This high performance
MPEG-2 encoder addresses the quality
level required by broadcasters for
encoding data up to 50 Mb/s.
Overview:
The ME31 is providing increased perfor-
mance beyond the existing Encoder Chip
Set (ME30) by supporting these features of
the 4:2:2 Profile specification:
• 4:2:2 field/frame encoding
• 1 bit intra DC precision
1
• 50 Mb/s (based on content)
• 32 additional lines of vertical scan for
support up to 512 lines (NTSC) and 608
lines (PAL)
The encoder operates in a combination of
one to three chips depending upon your
application needs. It is comprised of three
chips: the SE1 SE21, and SE31. All three
1,
chips provide MPEG-2 IPB encoding and
operate at a system clock cycle of 62MHz.
Additional Features:
• Maximum Search Size
Horizontal
Vertical
SE11,SE21,SE31
±64
±56
SE11,SE21
±8
±7
• Real-time encoding of 4:2:2 and 4:2:0
chroma format
• Field or frame encoding
• Selectable MPEG-1 or MPEG-2 encoding
• Adaptive field or frame motion estimation
• Adaptive field or frame DCT
• Dual prime motion estimation in IP
encoding
• 16- or 24-bits YCbCr input
• Supports host command buffering
• 16-bit generic host interface
• Output compressed data to FIFO
• External FIFO feedback for dynamic rate
controls
• Insertion of user data in encoded stream
• User-specifiable quantizer tables
• Optimization of luma and chroma
utilizing separate quantizer tables
• Conversion of 4:2:2 chroma format to
4:2:0 chroma format
© International Business Machines Corporation 1996
Printed in the United States of America
3-97
All Rights Reserved
* Indicates a trademark or registered trademark of the
International Business Machines Corporation.
** All other products and company names are
trademarks or registered trademarks of their
respective holders.
The information contained in this document is subject
to change without notice. The products described in
this document are NOT intended for use in implanta-
tion or other life support applications where
malfunction may result in injury or death to persons.
The information contained in this document does not
affect or change IBM’s product specifications or
warranties. Nothing in this document shall operate as
an express or implied license or indemnity under the
intellectual property rights of IBM or third parties. All
the information contained in this document was
obtained in specific environments, and is presented
as an illustration. The results obtained in other
operating environments may vary.
THE INFORMATION CONTAINED INTHIS DOCUMENT
IS PROVIDED ON AN“AS IS” BASIS. In no event will
IBM be liable for any damages arising directly or
indirectly from any use of the information contained
in this document.
Digital Video Products quality is demonstrated by the
certification of its quality management system in
accordance with the ISO 9001 standard.
IBM Microelectronics Division
1580 Route 52, Bldg. 504
Hopewell Junction, NY
12533-6531
The IBM home page can be found at:
http://www.ibm.com
The IBM Microelectronics Division home page
can be found at:
http://www.chips.ibm.com
This product’s URL is:
http://www.chips.ibm.com/products/mpeg
Specifications:
Technology
Memory Management
0.5 micron CMOS process, 4 levels of metal
60 ns DRAM or faster (6.5MB)
12 ns SRAM or faster (256KB)
Ambient Temperature
Nominal Supply Voltage
Power Dissipation
0 - 40°C
3.4 Volts ±3%
SE1 = 3.0 Watts
1
SE21 = 4.8 Watts
SE31 = 4.8 Watts
Packaging
40 mm ceramic quad flat pack (304 pins)
Note: These chips are not interchangeable with the standard IBM IPB Encoder Chip Set
(SE10, SE20, SE30).
Part Numbers:
MPEGME31 (SE1
1,SE21,SE31) Three chip set
MPEGME21 (SE1
1,SE21) Two chip set
MPEGSE11
MPEGSE21
MPEGSE31
IBM39 MPEGME31 CFB 16C
IBM39 MPEGME21 CFB 16C
IBM39 MPEGSE1 CFD 16C
1
IBM39 MPEGSE21 CFB 16C
IBM39 MPEGSE31 CFB 16C
Fax Service 415-855-4121
Fax Document # 50041
*07G522019700*
G522-0197-00
