
Video Camera LSIs
MN6732741
Signal-processing IC for surveillance cameras and cameras for PC input
1
Publication date: August 2001
SDB00060AEM
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Overview
The MN6732741 is camera signal-processing IC appropriate for a wide variety of applications, including
surveillance cameras and cameras used for input to personal computers. In addition to the basic functions of luminance
and chrominance signal processing, it also integrates the ALC, AWB, and AGC functions that were previously
implemented using microcontroller signal processing. Furthermore, it also integrates on a single chip, including SSG,
CG, and I
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C-bus functions.
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Features
Input:
Outputs:
Analog signal (A/D converter input)
Digital output
8-bit YUV signal
Analog outputs
Luminance signal
Chrominance signal
Composite video signal output
RGB output
Operating supply voltage:
Operating clock frequency: 9.5 MHz to 28.7 MHz
Main functions
10-bit A/D converter
Single-channel 10-bit D/A converter
Two-channel 8-bit D/A converter
Supports analog AGC (NN2038 or NN2039)
CG and SSG circuits
Supports 510 and 768 horizontal lines (NTSC and PAL)
Supports VGA progressive scan readout CCDs (complementary color filters)
Also supports black-and-white CCD signal processing
CCD white defect/black defect correction circuit
Digital AGC gain: up to 24 dB
Left/right reversing function
Variable gamma correction (
γ =
0.3 to 1)
ZV port standard mode, BT656 standard mode
Modes: LL, SYNC, VD2, and HD/VD external synchronization support
Built-in I
2
C-bus circuit
ALC and AGC (Also supports external AGC)
Two white balance modes (manual and ATW) with ATW lock function
Automatic OB correction function
3.3 V
±
0.3 V
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Applications
Surveillance cameras, PC input cameras, multimedia cameras