IBM39ENV422 Datasheet PDF


Part Number

IBM39ENV422

Description

(IBM39ENV420 / IBM39ENV422) eNV SD Digital Video Encoders

Manufacture

IBM

Total Page 6 Pages
PDF Download
Download IBM39ENV422 Datasheet PDF


Features Datasheet pdf . IBM39eNV422 IBM39eNV420 eNV SD Digita l Video Encoders Summary Data Sheet F eatures Profiles and standards • 4:2: 2 Profile at Main Level • Main Pro le at High Level • Main profile at Main Level • Simple Profile at Main Level Image resolutions • Up to 720x5 12x30 Fps NTSC • Up to 720x608x25 Fps PAL www.DataSheet4U.com Input image pr e-processing • Horizontal noise filt er • Vertical noise filter • Tempo ral filter • Supports horizontal ima ge scaling • Supports 4:2:2 to 4:2:0 chroma conversion Compression Options 4:2:2 or 4:2:0 output chroma format • Supports field or frame encoding Variable GOP structure • External reference rate control • Supports dynamically variable parameters • Supports MPEG-.
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IBM39ENV422 Datasheet
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Summary Data Sheet
Features
Profiles and standards
• 4:2:2 Profile at Main Level
• Main Profile at High Level
• Main profile at Main Level
• Simple Profile at Main Level
Image resolutions
• Up to 720x512x30 Fps NTSC
www.DataSheet4U.com• Up to 720x608x25 Fps PAL
Input image pre-processing
• Horizontal noise filter
• Vertical noise filter
• Temporal filter
• Supports horizontal image scaling
• Supports 4:2:2 to 4:2:0 chroma conversion
Compression Options
• 4:2:2 or 4:2:0 output chroma format
• Supports field or frame encoding
• Variable GOP structure
• External reference rate control
• Supports dynamically variable parameters
IBM39eNV422
IBM39eNV420
eNV SD Digital Video Encoders
• Supports MPEG-2 or ATSC user data insertion
• Minimum encoding latency
• Supports up to +/- 200H and +/- 128V search
range
• Programmable quantization tables
Output
• Selectable ES or PES output format
• Produces up to 50 Mbps
Memory
• Single SDRAM memory interface
• Requires a minimum 8 MB of 125 MHz SDRAM
• Supports 2 bank and 4 bank memory chips
Technology
• 3.3V and 2.5V power supplies
• 1.6W nominal power dissipation
• IBM CMOS SA-12E (0.18µm) process technol-
ogy
• 35 mm HPBGA package
Description
The IBM eNV SD video encoder chip offers flexibility
and provides a compact solution for your SD appli-
cation. The chip supports both MPEG-1 and MPEG-
2 real-time encoding. It handles multiple profiles and
levels including 4:2:2 Profile at Main Level and can
encode picture resolutions up to 720x512 and
720x608 in NTSC and PAL, respectively.
The architecture offers a wide range of capability to
encode SD images. The chip can compress images
into either MPEG-2 4:2:2 profile for professional
applications or Main profile for broadcast applica-
tions. It can deliver 4:2:2 or 4:2:0 chroma output for-
mat. The user can program a search range of up to
+/-200H and +/-128V based on their application
needs.
The chip outputs up to 50 Mbps with superior image
quality, making it desirable for high quality, high bit
rate solutions.
The programmable on-chip noise reduction filter
provides an effective solution to achieve the best
image quality at lower bit rates, making a highly
desirable choice for broadcast and distribution appli-
cations requiring VBR and statistical-multiplexing.
Dynamic changing of encoding parameters such as
GOP structure, bit rate control, and search range in
real time provides added flexibility to optimize pic-
ture quality at the available bandwidth.
eNVSD_sds_091301.fm.02
Sept. 13, 2001
Features
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