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PDF ( 数据手册 , 数据表 ) TW2834

零件编号 TW2834
描述 4 Channel Video QUAD/MUX Controller
制造商 Intersil
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TW2834 数据手册, 描述, 功能
TW2834
4 Channel Video QUAD/MUX Controller
For Security Applications
Preliminary Data Sheet from Techwell, Inc.
Information may change without notice
February 1, 2011
FN7739.0
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
Free Datasheet http://www.datasheet4u.net/







TW2834 pdf, 数据表
TW2834
Block Diagram
PBCLK
PBIN
VIN0A
VIN0B
ITU-R BT656
Decoder
Video
Decoder
VIN1A
VIN1B
Video
Decoder
VIN2A
VIN2B
Video
Decoder
VIN3A
VIN3B
HSPB
HCSB0
HCSB1
HALE
HRDB
HWRB
HDAT
Video
Decoder
HOST Interface
ADDRX/BA1X/BA0X/RASBX/CASBX/WENBX/DQMX/DATAX
Channel ID
Decoder
Scaler
Scaler
Motion Detect
Scaler
Scaler
Motion Detect
Scaler
Scaler
Motion Detect
Scaler
Scaler
Motion Detect
Memory Interface
Write
Control
Read
Control
Zoom
&
Image
Enhance
OSD
Box
Mouse
Overlay
Video
Encoder
ITU-R BT656
Encoder
Encoder Timing Interface
Write
Control
Read
Control
Memory Interface
Channel
ID
Encoder
OSD
Box
Mouse
Overlay
Video
Encoder
ITU-R BT656
Encoder
VOUTYX
VOUTCX
VDOUTX
HSENC
VSENC
FLDENC
LINK
VOUTYY
VOUTCY
VDOUTY
IRQ Interface
Clock Generator
CLK27ENCX
CLK27ENCY
NMIRQ
ADDRY/BA0Y/RASBY/CASBY/WENBY/DQMY/DATAY
CLK54I
8 FN7739.0
February 1, 2011
Free Datasheet http://www.datasheet4u.net/







TW2834 equivalent, schematic
TW2834
Analog Video Input
The TW2834 supports all NTSC/PAL video standards for analog input and contains automatic
standard detection circuit. Automatic standard detection can be overridden by writing the value into
the IFMTMAN and IFORMAT (0x01, 0x41, 0x81, 0xC1) registers. Even if video loss is detected, the
TW2834 can be forced to free-running in a particular video standard mode by IFORMAT register.
The Table 1 shows the video input standards supported by TW2834.
Format
NTSC-M*
NTSC-J
NTSC-4.43*
Table 1 Video input standards
Line/Fv (Hz)
Fh (KHz)
525/59.94
15.734
525/59.94
15.734
Fsc (MHz)
3.579545
4.43361875
NTSC-N
PAL-BDGHI
PAL-N*
PAL-M*
625/50
625/50
525/59.94
15.625
15.625
15.734
3.579545
4.43361875
3.57561149
PAL-NC
625/50
15.625
3.58205625
PAL-60
525/59.94
15.734
4.43361875
Notes: * 7.5 IRE Setup
16
FN7739.0
February 1, 2011
Free Datasheet http://www.datasheet4u.net/










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