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EL4501C PDF预览

EL4501C

更新时间: 2024-10-27 22:40:43
品牌 Logo 应用领域
ELANTEC /
页数 文件大小 规格书
10页 175K
描述
Video Front End

EL4501C 数据手册

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EL4501C - Preliminary  
Video Front End  
Features  
General Description  
• DC restore and sync separator  
• Wideband (100MHz) DC restore  
• Advanced sync separator  
• Programmable data slicer  
• Single 5 volt operation  
• Differential Gain = 0.1%  
• Differential Phase = 0.1°  
Low power (<75mW)  
The EL4501C Video Front End (VFE) is an integrated solution that  
provides the key analog signal conditioning functions for analog video  
signals. It forms the front end interface for either an analog or ana-  
log/digital video system. The VFE contains a high bandwidth DC  
Restore, a sophisticated Sync Separator, and a Data Slicer for embed-  
ded data recovery.  
The VFE will perform the restoration of the DC reference level  
(blanking level) and the extraction of all of the necessary timing sig-  
nals needed for synchronization and control. The sync separator is  
designed for very good noise immunity by incorporating a signal qual-  
ification scheme and internal brick wall filter. A data slicer is also  
included to help decode data embedded in the active video or VBI  
areas of the signal.  
Applications  
Video Capture & Editing  
Video Projectors  
Set Top Boxes  
Security Video  
Embedded data recovery  
The VFE operates from a single 5 volt supply and is available in a  
2
small 24 pin QSOP package that takes only 0.08in2(54mm ) of board  
area, as well as a standard 24 pin SOIC.  
Ordering Information  
Part No.  
EL4501CS  
EL4501CU  
Temp. Range  
-40°C to +85°C  
-40°C to +85°C  
Package  
Outline #  
MDP0027  
MDP0031  
24-Pin SOIC  
24-Pin QSOP  
Connection Diagram  
VFB  
VIDEO_IN  
DS_MODE  
DS_ENAB  
GND  
1
2
3
4
5
6
7
8
9
24 VIDEO_OUT  
23 DS_OUT  
22 DS_REF  
21 REF_IN  
20 REF_OUT  
19 VS  
GNDD  
RFREQ  
18 VSD  
FSEL  
17 SYNC_AMP  
16 NC  
SYNC_IN  
LOS 10  
COMPOSITE 11  
HORIZONTAL 12  
15 BACK_PORCH  
14 ODD/EVEN  
13 VERTICAL  
© 2000 Elantec Semiconductor, Inc.  

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