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VP2611CGGH1R PDF预览

VP2611CGGH1R

更新时间： 2024-02-13 05:52:17
品牌 Logo 应用领域
MITEL 编码器
页数 文件大小 规格书
14页 153K
描述
H.261 Encoder

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中文翻译

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VP2611CGGH1R 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：QFP包装说明：QFP, QFP128,.55X.93,20
针数：128Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.92商用集成电路类型：COLOR SIGNAL ENCODER
输入类型：YJESD-30 代码：S-PQFP-G128
JESD-609代码：e0功能数量：1
端子数量：128最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：QFP封装等效代码：QFP128,.55X.93,20
封装形状：SQUARE封装形式：FLATPACK
峰值回流温度（摄氏度）：NOT SPECIFIED电源：5 V
认证状态：Not Qualified子类别：Other Consumer ICs
最大供电电压 (Vsup)：5.25 V最小供电电压 (Vsup)：4.75 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED视频标准：PAL; NTSC
Base Number Matches：1

VP2611CGGH1R 数据手册

 浏览型号VP2611CGGH1R的Datasheet PDF文件第2页浏览型号VP2611CGGH1R的Datasheet PDF文件第3页浏览型号VP2611CGGH1R的Datasheet PDF文件第4页浏览型号VP2611CGGH1R的Datasheet PDF文件第5页浏览型号VP2611CGGH1R的Datasheet PDF文件第6页浏览型号VP2611CGGH1R的Datasheet PDF文件第7页 
VP2611
H.261 Encoder  
Supersedes June 1996 edition, DS3487 - 4.0  
DS3487 - 4.1 December 1998  
FEATURES  
DESCRIPTION  
TheVP2611VideoCompressionSourceCoderformspart  
of a chip set used in video conferencing, video telephony and  
multimedia applications. It produces data which conforms to  
the H261 standard for video compression with rates between  
64K and 2M bits per second. With a 27 MHz clock the device  
will accept data produced to full CIF resolution at 30 Hz frame  
rates. The pipeline latency through the device is only 3 macro  
block periods.  
The VP2611 contains all the elements necessary for the  
compression algorithm. It incorporates a Motion Vector Esti-  
mator which performs a +/- 7 pixel search. The decision to use  
interorintraframecompressionismadebythedevice,andthe  
selected data blocks are read from the frame store. New or  
difference data is then passed through a Discrete Cosine  
Transformer and quantized. Data from the quantizer is also  
inverse quantized and passed through an Inverse Discrete  
Cosine Transformer. This re-constructed data is then written  
to the frame store for use in the next frame period.This frame  
store is managed by an internal DRAM controller, and no  
external logic is needed.  
The input data must be in YUV space, and must also  
conform to the six sub blocks per macro block format defined  
by H261. Any conversion from RGB format is performed by  
the VP510 Colour Space Converter. Any reduction in spatial  
resolution, down to CIF or QCIF requirements, is done by the  
VP520 Three Channel Video Filter.  
The quantized data is zig-zag scanned and run length  
coded before being output, together with block information  
and motion vectors.  
■
■
■
■
■
Fully integrated H261 video encoder  
Up to full CIF resolution and 30 Hz frame rates  
Inputs YUV data in 8 x 8 sub block format  
Outputs run length coded coefficients  
On chip motion vector estimator with +/-7 pixel search  
window  
■
■
Addresses and control generated internally for DRAM  
frame store  
QFP package  
ASSOCIATED PRODUCTS  
■
■
■
■
■
VP510 Colour Space Converter  
VP520S CIF/QCIF Converter  
VP2612 Video Multiplexer  
VP2614 Video Demultiplexer  
VP2615 H.261 Decoder  
SYSTEM  
CONTROLLER  
USER  
INTERFACE  
VIDEO  
SYNC  
R
VP510  
COLOUR SPACE  
CONVERTER  
G
B
Y
RLC DATA  
VP2612  
VIDEO  
MULTIPLEXER  
H261  
BIT  
STREAM  
64kb to 2Mb/s  
VP520  
3 CHANNEL  
VIDEO FILTER  
VP2611  
INTEGRATED  
VIDEO ENCODER  
REQYUV  
FRMIN  
FLAGS  
Cr/Cb  
MBLK'S  
NTSC  
PAL  
COMP VIDEO  
DECODER  
ADDR  
DATA  
CIF FRAME  
STORE  
16 X128K  
CIF FRAME  
STORE  
16X128K  
TX BUFFER  
32K X 8  
CCIR601 RESOLUTION  
CIF RESOLUTION  
Y
Y
720 X 288  
720 X 240  
Cr/Cb 360 x 288  
Cr/Cb 360 x 240  
PAL  
Y 352 X 288  
Cr/Cb 176 x 144  
NTSC  
Fig 1 : Typical Video Conferencing Transmission System  
1234567...14

中文翻译

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