TW2824_15 Datasheet, PDF (1/2 Pages) Intersil Corporation – 4-Channel Video QUAD/MUX Controller for Security Applications

NOT RECOMMENDED FOR NEW DESIGNS
RECOMMENDED REPLACEMENT PART
TW2837
To request the full datasheet, please visit www.intersil.com/products/TW2824
4-Channel Video QUAD/MUX Controller for
Security Applications
TW2824
The TW2824 has four high quality NTSC/PAL video
decoders, dual color display controllers and dual
video encoders. The TW2824 contains four 10-bit
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 the security system. The TW2824 has a flexible
video display controller including QUAD and MUX
basic functions. The TW2824 also has an excellent
graphic overlay function which displays
character/bitmap, box and mouse pointer. The
TW2824 contains two video encoders with four 10-
bit digital-to-analog converters for providing 2
composite or S-video.
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
 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 2D 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
Applications
 Analog QUAD/MUX system
 4-/8-/16-channel DVR system
 Car rear vision system
 Hair shop system
February 2, 2011 1
FN7738.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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