TW2824 Ver la hoja de datos (PDF) - Unspecified
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TW2824 Datasheet PDF : 1 Pages
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The TW2824 has four high quality NTSC/
PAL video decoders, dual color display
controllers and dual video encoders.
The TW2824 contains four 10bit Analog-
to-Digital converters, proprietary digital
gain/clamp controller, high quality Y/C
separator to reduce cross-noise and high
performance dual scaler to provide various
pictures.
Four built-in motion and blind detectors
can increase the feature of security
system.
The TW2824 has flexible video display
controller including QUAD and MUX basic
functions.
The TW2824 also has excellent graphic
overlay function which displays character/
bitmap, box and mouse pointer.
The TW2824 contains two video encoders
with four 10bit Digital-to-Analog converters
to provide 2 composite or S-video.
The TW2824 can be extended up to 8/12/
16 channel video controller using chip-to-
chip cascade connection.
Features
Four Video Decoders
Accepts all NTSC/PAL standard formats with auto detection
Integrated four anti-aliasing filters and 10-bit CMOS ADCs
High performance adaptive comb filters for all NTSC/PAL standards
IF compensation filter for improvement of color demodulation
PAL delay lines for correcting PAL phase errors
Programmable hue, saturation, contrast, brightness and sharpness
Dual high performance horizontal and vertical scaler for each channel
Four built-in motion detectors with 16X12 cells and blind detectors
Dual Video Controllers
Additional 1 channel digital input for playback or cascade operation
Full Live/Strobe/Switch function
Auto sequence switch with 64 queues and/or manual switch by interrupt.
Various channel attribute control
Image enhancement for still image
High performance 2X zoom for horizontal and vertical direction
Horizontal Mirroring
Supports save and recall function
Last image capture when video-loss
Extendable to 8/12/16 channel video controller using cascade connection
Path-to-Path cascade
Character/Bitmap overlay for OSD
16 programmable single boxes
4 2-D arrayed boxes for motion result display
Mouse pointer overlay
Dual Video Encoders
2 path digital outputs with ITU-R BT.656 standards
2 path analog outputs with all analog NTSC/PAL standards
Supports CVBS or S-Video for each path
Programmable bandwidth for luminance and chrominance path
Four 10-bit video CMOS DACs
208-pin PQFP package
- Analog Quad\Mux Security System
VIN1A
- 4/8/16 Ch. Digital Video Recorder (DVR) VIN1B
- Car Rear Vision System
VIN2A
- Hair Shop system
VIN2B
VIN3A
VIN3B
VIN4A
VIN4B
TW2824
208-pin PQFP package
PBIN
HDAT
HALE
HRDB
HWRB
HCSB
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TW2824 Block Diagram
VOUTYX
VOUTCX
VDOUTX
[7:0]
VOUTYY
VOUTCY
VDOUTY
[7:0]
408 East Plumeria Drive,
San Jose CA 95134
USA
Tel: (408) 435-3888
Fax: (408) 435-0588
www.techwellinc.com
DMA
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