AL 37204 VERSION 0.2
DOC # : 1-F-PMK104-0001 averlogic.com.tw
AL37204
4 Channel Video Surveillance processor
Description
AL37204 is a 4-CH video surveillance
processor that empowers any surveillance
system with rich set of features. They include:
simultaneous monitoring-playback-recording
operation, flexible video display mode,
bitmapped and dynamic colored OSD, rich
modes of recording, accurate motion
detection (16X12 grids) with flexible
threshold and trigger methods, replay on all
input and playback Channels. One AL37204
chip can provide 4-CH real time surveillance
system.
It can be combined with AverLogic’s MPEG-
4 encoder (AL9V576) and video decoders
(AL240) to provide high quality surveillance
systems with cost effective structure. Its 9
channel c ounterpart, AL37219, can be used
for rea l-tim e 9-CH surveillance ap plication s.
Application
!
Video surveillance Multiplexer/Processor
!
DVR and POS DVR
!
Video Server
!
Highway traffic throughput surveillance
!
Medical inspecting/surgery
!
ATM machine surveillance
!
Defense surveillance
!
Recovery room monitoring in hospital
!
Home stay monit oring
!
Long hour monitoring in biological
experime nt labo ratory
!
Multiple ch a n n el IP ca m era
!
Car rear vision system
!
High end TV box with channle preview
Features
- Support NTSC and PAL standards
- A single chip supports 4-CH real-time
surveillance
- Support Triplex operation, (i.e., simultaneously
real-time monitoring + recording + playback).
- Support (at least)1,2,4,6,7,8,9,10,13,16 and
multi- windows display modes
- Support PIP /POP display modes
- Independent linear horizontal/vertical (H/V)
scaling down factors (ex. 1/2, 1/3, 1/4, 2/3, 3/4)
- Programmab le brightness, contrast an d
saturation
- Individual channel freeze
- Replay on individual channel (Max 10 sec per
CH)
- Embedded OSD (On Screen Display)
- Programmable bitmap type font for OSD
display
- Recording type: (D1 multiplexing/QUAD/PIP/a s
screen)
- D1 multiplexing Recording modes: weighted
/regular/MPEG-GOP type
- Support DDR 16-bit interface up to 4G bit
memory
- Support motion detection /video loss/blind
detection
- Motion detection resolution: 16X12 grids
- Support channel-switching at front-end TV
decoder
- VBI insertion and extraction
- Support external VCR/DMR/DVR signal
triggered
- Built in de-interlacer for the RGB output
- Embedded three TV encoders with three DACs
- 1.8/3.3V power supply
- 216-pin 24x24 mm
2
LQFP package
AL 37204 VERSION 0.2
DOC # : 1-F-PMK104-0001 averlogic.com.tw
Functional Block Diagram
Interface
1. 4 digital ITU-R BT. 656 inputs with another
input for playback port that shares with the
second digital output port
2. 3 independent digital ITU-R BT. 656 output
ports
3. Digital output video formats: ITU-R BT. 656
or digital Progressive RGB formats
Table 1 Digital Output Configuration Table
DOUT [23:16] DOUT [15:8] DOUT [7:0]
B(MON) G(MON) R(MON)
ITU -R 656(VCR2) ITU-R 656(VCR1) ITU-R 656(MON)
4. 3 independent analog output ports for
Pr ogressive RGB, S-video, or Composite
signals
5. The 3 analog outputs can have different
configurations of composite CVBS, S-Video
or analog RGB (or YUV) signal as described
in the below table.
Table 2 Analog Video Output Combination
MON(DAC1) VCR1(DAC2) VCR2(DAC3)
Composite
1
Composite
2
Composite
3
Composite S-Video
*S-Video Composite
2
*S-Video
S-Video Composite
R G B
6. HPI (Host Parallel Interface) and 2 wire serial
bus
7. DDR Interf ace: 16-bit up to 4G bit memory
Ordering Information
Part Number Package Power
AL37204C-LF-PBF 216-LQFP +1.8/3.3V
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