CS92288 MPEG-2 Audio/Video CODEC

CS92288 MPEG-2 Audio/Video CODEC
Leading the Digital Entertainment RevolutionTM
MPEG-2 Audio/Video CODEC
Perfect for Consumer Entertainment Applications
CS92288 Features
„ Single-chip, real time MPEG-2 audio/video
CODEC with system mux/demux and OSD
„ Supports real time MPEG-1, MPEG-2 MP@ML,
SP@ML, and MP@LL encoding and decoding
„ Support for constant and one-pass variable bit
„ IPB-pictures, CBR or VBR to 15 Mbps
„ I-pictures only to 30 Mbps
„ Supports Transport, Program, and Elementary
„ Support for real time encoding and decoding of
two-channel digital audio in either Dolby Digital
or MPEG audio (Layer I, II, and III - MP3)
„ Programmable system mux/demux supports
VCD, SVCD, and DVD encoding and decoding
„ 8-bit OSD support (2-b text, 2-b to 8-b
„ Supports multiple resolutions and scan rates
„ Low external memory, e.g., NTSC:
„ 8 Mbytes for full D1 (720) NTSC/PAL pictures
„ Intel/Motorola 16-bit host interface
„ Generic 8-bit interface for glueless to multiple
devices such as the Philips 7146 PCI Bridge,
Philips TriMedia, and USB controllers
„ Integrated programmable video pre- & postprocessors
„ Integrated I2S interface
„ 1.00 watts at 108 MHz average power
„ 272 BGA package
CS92288 is a single-chip, real time MPEG-2 audio/video
encoder/decoder (CODEC) with an integrated system
multiplexor/demultiplexor and on-screen display (OSD) feature.
CS92288 CODEC encodes and decodes both ISO/IEC 13818 Main
Level @ Main Profile (ML@MP), Simple Profile @ Main Level
(SP@ML), Main Profile @ Low Level (MP@LL), and ISO/IEC 11172
(MPEG-1) video bitstreams as well as MPEG audio and Dolby Digital
By integrating advanced MPEG-2 features, such as support for both
frame and field prediction, and proprietary rate control algorithms,
CS92288 provides unique video quality at both low and high bit
Our CS92288-based reference designs allow fast time-to-market
introduction of affordable, high-quality, digital A/V products, for
consumer, PC, and Internet applications.
For more information, visit us at www.cirrus.com
Technical Overview
CS92288 combines a programmable RISC core,
programmable DSP core, and dedicated processing units
organized as a process pipeline. The RISC core supports
system mux and demux requirements for a variety of system
applications, including VCD, SVCD, and DVD. The DSP
supports dual-channel Dolby Digital encoding and MPEG (all
layers) audio encoding and decoding. It is powerful enough to
support additional audio formats, such as DTS or Dolby Pro
Logic. Integrated I2S support allows for a glueless interface to
A/D and D/A converters.
Format Support
CS92288 supports all the requirements of the VCD and Super
VCD specifications. This includes MPEG-1 and MPEG-2
encoding and decoding at 1/2 (VCD), 2/3 (SVCD), or full D1
(DVD) resolutions, MPEG audio encoding and decoding, and
an OSD. In addition, CS92288 supports audio/video encoding
and decoding at full D1 resolution using either the Dolby
Digital (AC-3) or MPEG audio specifications.
MPEG Video
CS92288 provides application program control over a large
number of encoding parameters such as I, P, B-picture
cadence, GOP structure, and decoder buffer sizes.
Internal rate control provides a high degree of flexibility in
relation to the output bit rate, including the ability to generate
variable bit rate compressed video stream in one pass. This
makes it suitable for storage sensitive applications such as
digital camcorders and removable storage media.
Pre- and post-processing support includes pre- and postfiltering, temporal filtering, telecine (3:2 pulldown), inverse
telecine, plus up and down chroma conversions.
CS92288 supports MPEG-1 and MPEG-2 (all layers), Dolby
Digital, and MP3; however, additional audio compression and
decompression algorithms can be supported via firmware
For more information, visit us at www.cirrus.com
CS92288 can input or output MPEG-compliant program
streams or audio and video elementary streams. Transport
stream generation and decoding is also available via optional
firmware upgrade.
CS92288 includes a 64-bit SDRAM memory interface, video,
and audio interfaces (with I2S), a 16-bit/8-bit Motorola/Intel
host interface, a serial EPROM/Flash memory interface, and
CS92288 is the best MPEG solution because ...
Superior Video Quality
A patented motion search engine allows CS92288 to yield
better video quality than other MPEG encoders, even when
these encoders apply wider search ranges. For TV interlaced
signals, CS92288 is one of few consumer-grade MPEG codecs
that support motion estimation using frame, 16x8, and field
prediction. Other encoders support only frame prediction. Our
support for advanced modes in motion estimation, combined
with our proprietary rate-control algorithms lends to a unique
level of video quality at both low and high bit rates.
Superior Audio Features
Cirrus Logic is a leader in digital audio and CS92288 is no
exception. A programmable DSP supports Dolby Digital and all
MPEG audio formats, including MP3.
Superior Support
Cirrus Logic provides proven CS92288-based reference
designs for affordable, high-quality, digital A/V products for
consumer, PC, and Internet applications.
System Design Examples
DVD Player/PVR Reference Design
CS92288 is an ideal single-chip solution for a variety of
MPEG-2 based applications such as DVD recorders, set-top
boxes with recording capability, or USB-based digital video
recorders. The DVD Player/PVR Reference design combines
a standard DVD decoder chip with the CS92288 for fullduplex DVD recording and playback functionality. This design
enables new classes of consumer devices, such as DVD players with time-shift capabilities or DVD-Recordable VHS
replacement systems. CS92288's MP3 CODEC capability can
further enhance these devices by adding additional audio
USB-DVR Reference Design
The USB-DVR CS92288 Reference Design is a USB peripheral that makes it easy to capture and playback audio, video,
and television signals on Microsoft Windows-based personal
computers equipped with USB ports. The USB-DVR design
can output MPEG video to either the computer display or a
standard NTSC/PAL video monitor. The main hardware components of the USB-DVR board are: a NTSC/PAL TV/FM tuner,
the CS4954/5 NTSC/PAL video encoder from Cirrus Logic, a
video decoder, CS92288 audio/video CODEC, a Cypress EZUSB FXTM USB controller, audio A/D and D/A converters, an
analog audio multiplexor, and an IR sensor for optional
remote control.
Harmony Reference Design
The HarmonyTM reference design is a platform that enables
fast development of cost effective consumer products that
combine DVD playback with digital audio/video MPEG recording on a set-top box or other PCI-based products. Examples
include: Advanced set-top boxes with Personal Video
Recorders (PVRs) and home media servers with recordable
DVD and audio-CD.
For more information, visit us at www.cirrus.com
Video Features
„ NTSC: (720-D1, 704-D1, 640-VGA, 544, 480-2/3D1,
352-1/2D1) x 480, or 352 x 240 (CIF), or 176 x 112 (QCIF)
at 30 or 29.97 Hz
„ PAL: (720-D1, 704-D1, 640-VGA, 544, 480-2/3D1,
352-1/2D1) x 576, or 352 x 288 (CIS/SIF), or 176 x 144
(QCIF) at 25 Hz
„ Film: (720-D1, 704-D1, 640-VGA, 544, 480-2/3D1,
352-1/2D1) x 480, or 352 x 240 (CIF), or 176 x 144 (QCIF)
at 24 Hz
„ ITU-R 656 or ITU-R 601
„ Digital loopback
„ Proprietary high performance motion estimation
Half-pel accuracy
„ Programmable search range
„ H search range - 63.5, 31.5, 15.5, 7.5 pel/frame
„ V search range - 31.5, 15.5, 7.5 pel/frame
„ Field, 16 x 8, and frame-mode prediction
„ Programmable encoding parameters
IBBBP, IBBP, IBP, IP, I GOP structures
„ User defined quantization matrices
„ Encoding time
„ Average bit rate
„ Active picture area selection
„ VBR and CBR
„ Pre- and post- processing
Horizontal and vertical cropping
Horizontal and vertical scaling
Cirrus Logic, Inc.
Corporate Headquarters
4210 S. Industrial Drive
Austin, TX 78744
T (512) 445-7222
T (800) 888-5016
F (512) 912-3977
NTSC to PAL format conversion
Temporal and spatial filtering
„ Telecine and inverse-telecine
„ OSD Options
Logo On/Off
Command menu On/Off
„ Status menu On/Off
„ OSD special effects
Audio Features
„ Programmable, 24-bit, digital signal processor
„ Input/Output sampling rates: 32, 44.1, 48, and 96KHz
„ Data resolution up to 24 bits/sample
„ Two channel audio encoding or decoding in either MPEG
(all layers) or Dolby Digital (AC-3)
„ Supports stereo, joint stereo, or two mono channels
„ 5.1 channels audio decoding (downmixed to two channels)
„ Support for new audio algorithms via firmware
System Processor Features
„ Based on powerful embedded ARC core
„ System multiplexor and demultiplexor
„ Programmable, supports encoding and decoding of DVD,
VCD, SVCD, Elementary, Program, and Transport streams
„ Programmable DMA transfer size
„ Trick Play: fast and slow play forward, fast play backward
United States
Cirrus Logic, Inc.
Cirrus Logic K.K.
Cirrus Logic Intl. Ltd.
Cirrus Logic UK
4210 S. Industrial Drive
Austin, TX 78744
T (800) 888-5016
F (512) 912-3977
Aioi Sonpo, bldg 6F
5-6 Niban-cho, Chiyoda-ku
Tokyo, 160 Japan
T 81-3-5226-7390
F 81-3-5226-7677
20F., Ocean Building
80 Shanghai Street
Kowloon, Hong Kong, China
T 852-2376-0801
T 852-2314-9920
F 852-2375-1202
4-5 Anglers Court
33-44 Spittal Street
Marlow, Bucks SL71DB
T 44-0-1628-472-211
F 44-0-1628-486-114
Please access our website, www.cirrus.com/contacts, for your nearest local distributor.
For more information, visit us at www.cirrus.com
© 2002, Cirrus Logic, Inc. All rights reserved. Cirrus and Cirrus Logic are registered trademarks of Cirrus Logic, Inc.
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