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PDF OV9625 Data sheet ( Hoja de datos )
| Número de pieza | OV9625 | |
| Descripción | (OV9121 / OV9625) CMOS SXGA Carerachip | |
| Fabricantes | Omni Vision | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de OV9625 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Omni
ision
TM
Advanced Information
Preliminary Datasheet
OV9625 Color CMOS SXGA (1.3 MPixel) CAMERACHIPTM
OV9121 B&W CMOS SXGA (1.3 MPixel) CAMERACHIPTM
General Description
The OV9625 (color) and OV9121 (black and white) are
high-performance 1.3 mega-pixel CAMERACHIPSTM for
digital still image and video camera products.
Both devices incorporate a 1280 x 1024 (SXGA) image
array and an on-chip 10-bit A/D converter capable of
operating at up to 15 frames per second (fps) at full
resolution and an improved micro lens design to decrease
shading. Proprietary sensor technology utilizes advanced
algorithms to cancel Fixed Pattern Noise (FPN), eliminate
smearing, and drastically reduce blooming. The control
registers allow for flexible control of timing, polarity, and
CameraChip operation, which, in turn, allows the engineer
a great deal of freedom in product design.
Features
• Optical Black Level Calibration (BLC)
• Improved micro lens design to decrease shading
• Video or snapshot operations
• Programmable/Auto Exposure and Gain Control
• Programmable/Auto White Balance Control
• Horizontal and vertical sub-sampling (4:2 and 4:2)
• Programmable image windowing
• Variable frame rate control
• On-chip R/G/B channel and luminance average
counter
• Internal/External frame synchronization
• SCCB slave interface
• Power-on reset and power-down mode
Applications
• Digital still cameras
• PC camera/dual mode
• Video conference applications
• Machine vision
• Security cameras
• Biometrics
Key Specifications
Array Size
SXGA
VGA
Core
Power Supply
Analog
I/O
Power
Active
Requirements
Standby
Output Formats (10-bit)
Lens Size
Max. Image
SXGA
Transfer Rate
VGA
Sensitivity
S/N Ratio
Dynamic Range
Scan Mode
Gamma Correction
Electronics
SXGA
Exposure
VGA
Pixel Size
Dark Current
Fixed Pattern Noise
Image Area
Package Dimensions
1280 x 1024
640 x 480
2.5VDC + 10%
3.3VDC + 10%
3.3VDC + 10%
< 50 mA
< 10 µA
Raw RGB Data
1/2"
15 fps
30 fps
1.0 V/Lux-sec
54 dB
60 dB (due to ADC limitations)
Progressive
N/A
Up to 1050:1
Up to 500:1
5.2 µm x 5.2 µm
28 mV/s
< 0.03% of VPEAK-TO-PEAK
6.66 mm x 5.32 mm
.560 in. x .560 in.
Figure 1 OV9625/OV9121 Pin Diagram
Ordering Information
Product
OV09625-C00A (Color, SXGA,
VGA)
OV09121-C00A (B&W with
microlens, SXGA, VGA)
Package
CLCC-48
CLCC-48
30 29 28 27 26 25 24 23 22 21 20 19
PCLK 31
18 ASUB
D5 32
D6 33
17 AGND
16 AVDD
D7 34
15 VcCHG
D8 35
D9 36
DOVDD 37
OV9625/OV9121
14 FSIN
13 VGA
12 EXPSTB
DOGND 38
11 SCCB_E
HREF 39
10 RESET
CHSYNC 40
VSYNC 41
9 NC
8 FREX
NC 42
7 PWDN
43 44 45 46 47 48 1 2 3 4 5 6
Version 1.3, September 15, 2003
Proprietary to OmniVision Technologies
1
1 page  
Omni ision
Functional Description
Reset
The RESET pin (pin 10) is active high. There is an internal
pull-down (weak) resistor in the sensor so the default
status of the RESET pin is low.
Figure 9 RESET Timing Diagram
RESET
1ms
4096 External Clock
There are two ways for a sensor reset:
1. Hardware reset - Pulling the RESET pin high and
keeping it high for at least 1 ms. As shown in
Figure 9, after a reset has been initiated, the sensor
will be most stable after the period shown as 4096
External Clock.
2. Software reset - Writing 0x80 to register 0x12 (see
“COMH” on page 20) for a software reset. If a
software reset is used, a reset operation done twice
is recommended to make sure the sensor is stable
and ready to access registers. When performing a
software reset twice, the second reset should be
initiated after the 4096 External Clock period as
shown in Figure 9.
Two methods of power-down or standby operation are
available with the OV9625/OV9121.
• Hardware power-down may be selected by pulling
the PWDN pin (pin 7) high (+3.3VDC). When this
occurs, the OV9625/OV9121 internal device clock is
halted and all internal counters are reset. The current
draw is less than 10 µA in this standby mode.
• Software power-down can be effected by setting the
COMC[4] register bit high. Standby current will be
less then 1 mA when in software power-down. All
register content is maintained in standby mode.
SCCB Interface
OV9625/OV9121 provides an on-chip SCCB serial control
port that allows access to all internal registers, for
complete control and monitoring of OV9625/OV9121
operation.
Refer to OmniVision Technologies Serial Camera Control
Bus (SCCB) Specification for detailed usage of the SCCB
interface.
Video Output
Power-Down Mode
The PWDN pin (pin 7) is active high. There is an internal
pull-down (weak) resistor in the sensor so the default
status of the PWDN pin is low.
Figure 10 PWDN Timing Diagram
PWDN
Sensor Power Down
RGB Raw Data Output
The OV9625 CAMERACHIP offers 10-bit RGB raw data
output.
B&W Output
The OV9121 offers 10-bit luminance signal data output.
Version 1.3, September 15, 2003
Proprietary to OmniVision Technologies
5
5 Page 
Omni ision
Table 6
AC Characteristics (TA = 25°C, VDD = 3V)
Symbol
Parameter
ADC Parameters
B Analog bandwidth
DLE DC differential linearity error
ILE DC integral linearity error
Settling time for hardware reset
Settling time for software reset
Settling time for VGA/XSGA mode change
Settling time for register setting
Table 7
Timing Characteristics
Symbol
Parameter
Oscillator and Clock Input
fOSC
tr, tf
Frequency (XCLK1, XCLK2)
Clock input rise/fall time
Clock input duty cycle
Electrical Characteristics
Min Typ Max Unit
12 MHz
0.5 LSB
1 LSB
<1 ms
<1 ms
<1 ms
<300
ms
Min Typ Max Unit
8 24 48 MHz
2 ns
45 50 55 %
Version 1.3, September 15, 2003
Proprietary to OmniVision Technologies
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet OV9625.PDF ] | |
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