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PDF ( 数据手册 , 数据表 ) OV7950

零件编号 OV7950
描述 (OV7451 / OV7950) CMOS Analog NTSC CameraChip
制造商 OmniVision Technologies
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OV7950 数据手册, 描述, 功能
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ision
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Advanced Information
Preliminary Datasheet
OV7950/OV7451 CMOS Analog NTSC CAMERACHIPTM with OmniPixel® Technology
General Description
The OV7950 (color) and OV7451 (black & white) single
chip CMOS CAMERACHIPSTM are designed to provide a
high level of functionality for all applications requiring a
small footprint, low voltage, low power consumption and
high performance color or B&W video camera.
Both devices support NTSC composite video output and
can directly interface with a VCR TV monitor or other
device with 75 ohm loading.
Note: The OV7950/OV7451 is available
Pb in a lead-free package.
Features
• Single chip 1/4" format video camera
• Composite video (NTSC) output
• High sensitivity
• Automatic exposure/gain with 16 zone control
• Horizontal and vertical windowing capability
• Auto white balance control
• Aperture/Gamma correction
• 50/60 Hz flicker cancellation
• External frame sync capability (Genlock)
• SPI/EEPROM used to control overlay and set other
customer variables
• Two sets of dynamic overlay controls
• Master/slave compatible Serial Camera Control Bus
(SCCB) control interface for register programming
• Low power consumption
• Extreme low dark current for high temperature
applications
• Defective pixel correction
Ordering Information
Product
Package
OV07950-C10A (Color, NTSC)
CLCC-48
OV07451-C10A (B&W with microlens, NTSC) CLCC-48
Applications
• Security/Surveillance cameras
• Video Conferencing
• Video phones
• Video e-mail
• Toys
• Finger print equipment
• Medical and dental equipment
Key Specifications
Array Size
Analog/ADC/IO
Power Supply
Digital Core
Power Consumption
Image Area
Exposure
Time Range
OV7950
OV7451
Optical Format
S/N Ratio
Dynamic Range
Pixel Size
Dark Current
Fixed Pattern Noise
Package Dimensions
656 x 492
3.3 VDC + 5%
1.8 VDC + 5%
200 mW
4.080 mm x 3.102 mm
1/60s - 20 µs
1/30s - 20 µs
1/4"
48 dB
49 dB
6.0 µm x 6.0 µm
10 mW/s @ 60°C
0.22% of VPEAK-TO-PEAK
14.22 mm x 14.22 mm
Figure 1 OV7950/OV7451 Pin Diagram (Top View)
30 29 28 27 26 25 24 23 22 21 20 19
RES 31
DOVDD 32
PCLK 33
NC 34
NC 35
NC 36
NC 37
NC 38
NC 39
NC 40
NC 41
NC 42
OV7950/OV7451
18 VS
17 ADGND
16 ADVDD
15 SCK
14 ESO
13 CS
12 ESI
11 FSIN
10 RESET
9 OVL2
8 OVLEn
7 PWDN
43 44 45 46 47 48 1 2 3 4 5 6
Version 2.5, February 28, 2006
Proprietary to OmniVision Technologies
1







OV7950 pdf, 数据表
OV7950/OV7451 CMOS Analog NTSC (OmniPixel®) CAMERACHIP
Omni ision
www.DaTtaabShleee1t4U.comPin Description
Pin
Location
Name
Pin
Type
26 NC
27 NC
28 NC
29 NC
30 OGND
Analog
31 RES
Analog
32 DOVDD Power
33 PCLK
Output
34 NC
35 NC
36 NC
37 NC
38 NC
39 NC
40 NC
41 NC
42 NC
43 MASTEN Input
44 MSDA
I/O
45 MSCL
O
46 SIO_D
I/O
47 SIO_C
Input
48 SGND
Power
Default
(V)
Function/Description
– No connection
– No connection
– No connection
– No connection
– DAC ground
– Internal reference adjustment pin (connect to ground using a 200Ω resistor)
3.3 Digital I/O interface power supply
– Pixel clock output
– No connection
– No connection
– No connection
– No connection
– No connection
– No connection
– No connection
– No connection
– No connection
– Master interface enable
– Serial master interface data I/O
– Serial master interface clock output
– Serial slave interface data I/O
– Serial slave interface clock input
0 Sensor array ground
8 Proprietary to OmniVision Technologies
Version 2.5, February 28, 2006







OV7950 equivalent, schematic
OV7950/OV7451 CMOS Analog NTSC (OmniPixel®) CAMERACHIP
Omni ision
www.DaRtaeSgheiest4teU.rcoSmet
Table 7 provides a list and description of the Device Control registers contained in the OV7950/OV7451. The device slave
addresses are 60 for write and 61 for read.
Table 7 Device Control Register List
Address Register
(Hex)
Name
00 GAIN
01 BLUE
02 RED
03 GREEN
04 AECL
05 BAVG
06 GAVG
07 RAVG
08 COM1
09
0A
0B
0C-0F
RSVD
PIDH
PIDL
RSVD
Default
(Hex)
00
80
80
80
88
00
00
00
10
XX
79
50
XX
R/W Description
AGC Gain Control
Bit[7:0]: Gain setting
• Range: 1x - 32x
RW Gain = (Bit[7]+1) x (Bit[6]+1) x (Bit[5]+1) x (Bit[4]+1) x (1+Bit[3:0]/16)
Note: This register is updated automatically when AGC is enabled. The
user can adjust the value through the serial interface if AGC is
disabled.
RW Blue Gain Control
RW Red Gain Control
RW Green Gain Control
AEC/AGC Control
RW Bit[7:3]: Reserved
Bit[2:1]: AGC Gain Control - high 2 bits
Bit[0]: Exposure control LSB
RW B Channel Average
RW G Channel Average
RW R Channel Average
Common Control 1
Bit[7]: Mirror function
Bit[6]:
0: Normal image
1: Mirror image
Vertical flip function
0: Normal image
1: Vertically flip image
RW Bit[5]: Reserved
Bit[4]: VS pin output selection
Bit[3]:
0: Output signal depends on COM7[1] (0x15)
1: Output Odd field indicator
Gamma function ON/OFF
0: Gamma OFF
1: Gamma ON
Bit[2:0]: Reserved
– Reserved
R Product ID Number MSB (Read only)
R Product ID Number LSB (Read only)
– Reserved
16 Proprietary to OmniVision Technologies
Version 2.5, February 28, 2006










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