Datasheet > VW2010

VW2010

更新时间： 2024-02-09 03:51:49

品牌	Logo	应用领域
其他 - ETC		解码器编解码器
页数	文件大小	规格书
2页	356K
描述
MPEG-1, -2, -4 Audio/Video CODEC Chip

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中文翻译

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数据手册

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VW2010 数据手册

VW2010 MPEG-1, -2, -4 Audio/Video CODEC Chip

Chip

• Dynamically adjustable controls

• Fixed frame rates of 29.97 (NTSC) or

25 (PAL) frames per second, or variable

frame rates in low delay mode

• Constant or variable bit-rate from

22.5 Kb/s to 15 Mb/s

Product Brief

The VW2010 is a real-time MPEG-1, -2

and -4 audio/video/system CODEC chip

(simultaneous compression/ decompression,

or encode/decode) that fully complies

with ISO/IEC-11172-2, ISO/IEC-

13818-2, ISO/IEC-14496-2 and ITU-T

H.263. The VW2010 accepts uncompressed

ITU-R.BT-656 video and I2S

audio, compresses the video into MPEG-

1, -2, -4 or H.263 formats, compresses the

audio into MPEG-1, MPEG-2, MP3,

AAC or AC-3 audio formats, and outputs

them as transport streams for network

applications or program streams for storage

applications. In addition, the VW2010

accepts an MPEG bitstream input, and

outputs ITU-R.BT-656 video. It also

accepts an MPEG-1, MPEG-2, MP3,

AAC or AC-3 audio bitstream input, and

outputs audio through I2S, S/P-DIF or

IEC-61937.

• Horizontal resolution between 128

and 720 pixels in 16-pixel steps

• Vertical resolution between 80 and 480

pixels (NTSC) or 576 pixels (PAL) in

16-pixel steps

Feature List

Video Encoding

• Support for MPEG-1

• Programmed GOP structure and

length: I, IP, IBP and IBBP

• Programmed low delay mode

• Support for MPEG-2 MP@ML

• Support for MPEG-4 Simple Profile

@ L1, L2 and L3, with extensions to full

D1 and interlaced video

• Adaptive field/frame motion

compensation and DCT type

• 4:2:2 to 4:2:0 conversion

Audio Encoding

• MPEG-1 Layer I, II and III (MP3)

• MPEG-2 Layer I and II

• 2-channel down-mixed AAC

• 2-channel down-mixed AC-3

• Sampling frequencies: 8, 16, 22.05, 24,

32, 44.1, 48 and 96 KHz.

• Scene change detection

• Inverse telecine (3:2 pulldown)

• Motion estimation search range +/-

127 pels horizontal and +/- 63 pels

vertical, with half-pel accuracy

• 8-tap horiz. filter and 4-tap vert. filter

• Extraction of VBI data (including

Close Captioned and NABTS data)

from the ITU-R.BT-656 input

• Support for private and user data insertions

from VBI or host/PCI port

• Bits per channel: 16, 20, 24, 32

Multiplexing

Input

• User data or VBI data insertion

• Video and audio PES or ES

Output

• MPEG-1 System Stream

• MPEG-2 PS or TS

• MPEG-4 embedded in MPEG-2 TS

• PES and ES output

Video Decoding

• MPEG-1, -2, -4 and H.263 decoding

• 7-tap horiz. filter and 2-tap vert. filter

• Letterbox conversion

• 3:2 pulldown

• Closed Captioning and Teletext

Audio Decoding

• MPEG-1 Layer I, II and III (MP3)

• MPEG-2 Layer I and II

• 2-channel down-mixed AAC

• 2-channel down-mixed AC-3

• Sampling frequencies: 8, 16, 22.05, 24,

32, 44.1, 48 and 96 KHz.

• Bits per channel: 16, 20, 24, 32

• For S/P-DIF, 32, 44.1 and 48 KHz at

32 bits

5300 Stevens Creek Blvd., Suite 450, San Jose, CA 95129 Tel:(408) 615-1888 URL: www.vwebcorp.com

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3/29/02

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