Simply Perfect Video
H.264 Video Codecs
TM
PureVu CNW35XX
Multi-Stream Video Codec
TM
Product Brief
OVERVIEW
The CNW35XX is a multi-stream H.264 video codec, speci cally optimized for video surveillance applications, such as DVRs,
video servers and multi-stream IP camera head-ends. The deployment of H.264 results in 80% more e ciency over MJPEG
and in 30% more e ciency over MPEG-4.
The 8 bi-directional video ports support spatially and temporally multiplexed video streams, allowing the CNW35XX to process
a total of 32 CIF or 8 D1 streams at 30 frames/sec simultaneously. Video input ports can dynamically transrate and transsize
the input video streams. The large number of ports allows very cost-e ective DVR or multi-stream IP camera head-end
implementations without the need for expensive video multiplexers.
Through Super Low Latency Technology™ (SLL Technology™) the CNW35XX achieves sub 40ms encode-decode latency for
multi-stream D1 processing. These latency numbers are the lowest in the industry and key requirement for real-time PTZ
camera control and for securing premises instantly upon security breaches. The CNW35XX provides the ability to selectively
blank/block video areas to hide sensitive information, such as customers’ ATM pin codes. Moreover, the CNW35XX provides
motion vector and SAD information to the external host for motion detection and other analytics purposes.
KEY FEATURES
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H.264 / MPEG-4 AVC (Part 10) video encode/decode
D1 and CIF support
8 Bi-directional BT.656 video ports
32 Streams encode or decode
16 Streams simultaneous encode and decode
Super Low Latency Technology
TM
for sub 40ms multi-stream
encode-decode latency
Transsizing, transrating and stream duplication support
Content-adaptive noise reduction
Error resiliency & concealment
VBR & CBR bit rate control
On-chip 266 MHz DDR2 DRAM controllers
On-chip PCI DMA
PCI and generic host interfaces
APPLICATIONS
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Video surveillance DVRs
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Video surveillance video servers
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Multi-stream IP cameras
CNW35XX
- Block Diagram
2315 N. First Street
San Jose, CA 95131
T
408-943-7100
F
408-577-1992
E
sales@cavium.com
www.cavium.com
Simply Perfect Video
H.264 Video Codecs
TM
PureVu CNW35XX
Multi-Stream Video Codec
TM
Product Brief
FEATURES
Video Compression
•
H.264 Baseline & Main Pro le up to L3
Resolutions
•
480i60, 480p24/30/60
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576i50, 576p25/50
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CIF, QCIF, VGA, QVGA, SIF, others
Noise Reduction
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In-loop, low-delay ltering
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CA-MCTF
Error Resiliency & Concealment
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Intra-frame forcing
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Intra-refresh
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Variable GOP size
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Variable slice size
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Skip-frame
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Skip-macro block
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Decoder tolerant of missing or
corrupt NAL units
Rate Control
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Single pass, low-delay bit rate control
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Constant bit rate control
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Variable bit rate control
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Fixed QP
Network Support
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Encoder NAL bit stream formatting
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Decoder NAL bit stream parsing
Video Input and Output Ports
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8 bi-directional video ports
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Embedded sync support for
multiplexed streams
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ITU-R BT.656
Motion Detection
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Motion vector & SAD information
Super Low Latency Technology™
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Sub 40ms multi-stream encode-
decode latency
Multi-stream Support
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960 CIF frames/sec encode capacity
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8x D1 encode or decode
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32x CIF encode or decode
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4x D1simultaneous encode and
decode
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16x CIF simultaneous encode and decode
Pre & Post- Processing
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Transsizing & transrating
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YUV 4:2:2 <-> YUV 4:2:0 sample conversion
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Blanking/Blocking input video regions
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Stream duplication
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OSD
Host Bus Interface
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32/16-bit, 133 MHz sync/async host bus
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32-bit, 33/66 MHz PCI 2.2 compatible bus
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67 virtual PCI DMA channels
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Raw video transport
Configuration Support Per Stream
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Frame rate
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Statistics
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GOP size
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Error resiliency & concealment
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Noise ltering
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Resolution
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CBR/VBR control
Memory Interfaces
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2x DDR2 -266 MHz interfaces
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SPI Serial FLASH interface
Miscellaneous Interfaces
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JTAG
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GPIO
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Two-Wire serial bus
Operational Characteristics
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Core clock frequency 233 MHz
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Power dissipation 2.5W typical
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0˚ – +85˚ C ambient temperature
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0-90% RH
Package
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676 pin BGA
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27mm x 27mm
ORDERING INFORMATION
Device
CNW3508
Part Number
CNW3508-
233BG676-
Option Code
Streams
8x D1
32x CIF
Video Ports
No Interface
8
BT.656
Host I/F
PCI 32-bit,
33/66 MHz
or 32-bit
synchronous/asyn
chronous generic
host I/F
Memory
2x 32-bit wide
memory bus I/F
DDR2 266 MHz
Package
676
PBGA
RoHS
Pb-free
RoHS-6
2315 N. First Street
San Jose, CA 95131
T
408-943-7100
F
408-577-1992
E
sales@cavium.com
www.cavium.com
2011 Cavium, Inc. All Rights reserved. SSL Technology and PureVu are registered trademarks of Cavium, Inc.
All other brands and product names are registered trademarks of their respective owners.
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