TW2867-LA2-GR Intersil, TW2867-LA2-GR Datasheet - Page 6

• Manufacturer Part Number: TW2867-LA2-GR
• Description: 4 Chan Vid Decoder + Audio Codec Plus Video Encoder For Secu
• Manufacturer: Intersil

6
Intersil Techwell Security Surveillance IC Selection Guide
SECURITY SURVEILLANCE ICs
TW2851
Advanced 4-Channel A/V Decoder, MUX and Display Processor
The TW2851 is Techwell’s 5th generation 4-channel A/V decoder, multiplexer and display processor IC for security surveillance applications. The
device has four built-in NTSC/PAL video decoders with high-performance adaptive 4H comb filters, noise reduction algorithm, independent and
flexible video scalars for the display and record paths and 16x12 matrix motion/blind/ night detectors. The device includes advanced record and
display multiplexer functions. The record multiplexer supports multi¬channel frame-, field-and byte-interleaved video streams with a total frame
rate of up to 120 frames per second. The channel ID and motion/blind/night detection information can be embedded in the video stream for
record and playback purposes. The display multiplexer supports up to eight video windows of which the location and size of each window is
configurable. The multiplexed output can be displayed via VGA/LVDS and CVBS interfaces. Also included is a SPOT multiplexer that can tile
multiple live camera images on an analog output for displaying on SPOT monitor. The TW2851 has an audio CODEC which has four audio ADCs
and one DAC. A built-in audio controller can generate digital outputs for recording/mixing and accept digital input for playback. Multiple TW2851
devices can be cascaded to support 8/12/16-channel applications. Up to 32 display windows can be displayed on the PC monitor or LCD panel.
Other key features of the TW2851 includes 16-bit bitmap OSG, 2D-deinterlacer, 8-channel non-real time switching inputs, and flexible record and
playback ports supporting BT.656, BT.601, BT.1120 and 24-bit RGB formats.
Target Applications
4/8/16-Channel Embedded DVR
Mobile DVR System
LCD DVR Combo System
Monitor
SPOT
Secondary
Monitor
Main Monitor
Q4 2011 Edition