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PDF ( 数据手册 , 数据表 ) OV7930

零件编号 OV7930
描述 Color NTSC 510 X 492 Analog CMOS Camerachipstm
制造商 OmniVision Technologies
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OV7930 数据手册, 描述, 功能
Omni ision
TM
Advanced Information
Preliminary Datasheet
OV7930 Color CMOS Analog CAMERACHIPTM
General Description
The OV7930 (color) is a high performance quarter-inch
CMOS CAMERACHIPTM designed for all applications
requiring a small footprint, low voltage, low power
consumption and low cost color video camera.
The device supports NTSC composite video output and
can directly interface with a VCR TV monitor or other
75 ohm terminated input with 2X standard TV signal
range. The OV7930 CAMERACHIPs require only a single
5-volt DC power supply and have been designed for very
low power operation.
Features
• Single chip 1/4" lens video camera
• Composite video: NTSC
• Sensitivity boost (+27 dB)/AGC ON/OFF
• Automatic exposure/gain/white balance
• External frame sync capability
• Aperture correction
• SCCB programmable controls:
– Color saturation
– Brightness
– Hue
– White balance
– Exposure
– Gain
– Gamma curve
– Aperture correction
• Gamma correction (0.45) ON/OFF
• Low power consumption
• +5 volt only power supply
• Wide dynamic range, anti-blooming, zero smearing
Ordering Information
Product
OV7930 (Color, VGA,
NTSC, CVO)
Packages
CLCC-28, PLCC-28
Applications
• Video Conferencing
• Video Phones
• Video E-mail
• PC Multimedia
• Toys
• Security
• Surveillance
• Finger Printing
• Medical and Dental Equipment
Key Specifications
Array Size
Power Supply
Power
Requirements
Without Loading
With 75 ohm
Loading
Image Area
Auto Electronic Exposure Time
Minimum Illumination (3000K)
S/N Ratio
Dynamic Range
Pixel Size
Dark Current
Fixed Pattern Noise
Package Dimensions
510 x 492
5 VDC + 5%
20 mA
< 35 mA
4.00 mm x 3.08 mm
1/60s - 6.3µs
< 2.0 Lux
> 46 dB
> 70 dB
7.86 µm x 6.25 µm
< 100 mV/s
< 0.03% VPEAK-TO-PEAK
0.45 in. x 0.45 in.
Figure 1 OV7930 Pin Diagram
4 3 2 1 28 27 26
NC 5
VREQ
6
VRCHG
7
NC 8
NC 9
CVO 10
OVDD 11
OV7930
25 FASTB
24 PWDN
23 FODD/HGAIN
22 VHS/MIR
21 GAMMA
20 FSI
19 DGND
12 13 14 15 16 17 18
Version 1.1, January 15, 2003
Proprietary to OmniVision Technologies
1







OV7930 pdf, 数据表
OV7930
Color CMOS Analog CAMERACHIP
Omni ision
Timing Specifications
The OV7930 timing is standard NTSC TV timing. Figure 3 shows the NTSC timing and signal range. The OV7930 outputs 2X
standard TV signals.
Figure 3 NTSC Timing and Signal Range
Th =63.49us
Thblk = 10.08 µs
Thsync =
4.76 µs
VTO_P = 200 IRE
vsync = 83 IRE
3.58 MHz
Color Burst
9 cycle
80 IRE p_p
vset = 8 IRE
(A) HORIZONTAL TIMING FOR NTSC
VHSYNC
FIELD 1
523 524 525
1
2
3
4
5
6
7
8
9 10 11 12
EQUALIZING
EQUALIZING
FIELD 2
VERTICAL SYNC
261 262 263 264 265 266 267 268 269 270 271 272 273 274
EQUALIZING
EQUALIZING
(B) VERTICAL TIMING FOR NTSC
8 Proprietary to OmniVision Technologies
Version 1.1, January 15, 2003







OV7930 equivalent, schematic
OV7930
Color CMOS Analog CAMERACHIP
Sensor Array Center
Figure 8 OV7930 Sensor Array Center
Omni ision
1
Die
Sensor
Array
Scan Origin
Package Center
(0,0)
Array Center
(276µm, -89µm)
Positional Tolerance s
Die shift (x,y) = 0.15 mm (6 mils) max.
Die tilt = 1 degrees max.
Die rotation = 3 degrees max.
NOTES: 1. This drawing is not to scale and is for reference only.
2. As most optical assemblies invert and mirror the image, the chip is typically mounted
with pin one oriented down on the PCB.
16 Proprietary to OmniVision Technologies
Version 1.1, January 15, 2003










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