OV7620 Product Specifications -Rev. 1.3 (5/13/00)
Preliminary
Company Confidential
OV7620 SINGLE-CHIP CMOS VGA COLOR DIGITAL CAMERA
Features
326,688 pixels, 1/3" lens, VGA / QVGA format
Read out - progressive / Interlace
Data format - YCrCb 4:2:2, GRB 4:2:2, RGB Raw Data
8/16 bit video data: CCIR601, CCIR656, ZV port
Video Timing - 525 line, 30 fps
Wide dynamic range, anti-blooming, zero smearing
SCCB (Serial Camera Control Bus) interface
Electronic exposure / Gain / white balance control
Image enhancement - brightness, contrast, gamma, saturation,
sharpness, window, etc.
Internal / external synchronization scheme
Frame exposure / line exposure option
5 Volt operation, low power dissipation.
General Description
OV7620 is a highly integrated high resolution
(640x480) Interlaced / Progressive Scan CMOS digital
color / black&white video camera chip. The digital
video port supports 60Hz YCrCb 4:2:2 16Bit / 8 Bit for-
mat, ZV Port output format, RGB raw data 16Bit/8Bit
output format and CCIR601/CCIR656 format. The built-
in SCCB interface provides an easy way of controlling
the built-in camera functions.
Video Conferencing
Video Phone
Video Mail
Still Image
PC Multimedia
OV7001 48-Pin Out Diagram
U
V
7
/
B
8
U
V
6
/
B
P
C
L
R
U
V
5
/
M
I
R
U
V
4
/
S
L
A
E
N
U
V
3
/
E
C
L
K
O
U
V
2
/
Q
V
G
A
U
V
1
/
C
C
6
5
6
U
V
0
/
G
A
M
D
I
S
X
C
L
K
1
X
C
L
K
2
D
V
D
D
D
G
N
D
6
5
4
3
2
1
4
8
4
7
4
6
4
5
4
4
4
3
A
G
N
D
V
R
E
Q
F
R
E
X
A
G
C
E
N
/
R
A
M
I
N
T
R
E
S
E
T
S
V
D
D
S
G
N
D
M
I
D
S
I
O
-
0
S
I
O
-
1
A
V
D
D
A
G
N
D
7
8
9
10
11
12
13
14
15
16
17
18
AGND
AVDD
PWDN
VRS
VCCHG
SBB
VTO
AVDD
AGND
VSYNC/CSYS
FODD/SRAM
HREF/VSRAM
31
32
33
34
35
36
37
38
39
40
41
42
DOGND
DOVDD
PCLK/OUTX2
Y7/CS0
Y6/CS2
Y5/SHARP
Y4/CS1
Y3/RAW
Y2/G2X
Y1/PROG
Y0/CBAR
CHSYNC/BW
1
9
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
OV7620
Array Elements
664 x 492
Pixel Size
7.6 x 7.6 um
Image Area
4.86 x 3.64mm
Electronic
Exposure
500 : 1
Scan Mode
progressive
interlace
Gamma
Correction
128 Curve Settings
See specifics
Minimum
Illumination
2.5 lux @ f1.4
0.5 lux @ f1.4
(3000K)
S/N Ratio
> 48dB
Power Supply
5VDC, 5%
Power
Requirements
<120mW Active
<10uW Standby
Package
48-pin LCC
OV7620 Product Specifications - Rev. 1.2 (5/13/00)
OMNIVISION TECHNOLOGIES INC.
2
Preliminary
Company Confidential
SECTION 1
PRODUCT OVERVIEW
OV7620 is a highly integrated high resolution (640x480) Interlaced / Progressive Scan CMOS
digital color / black&white video camera chip. The digital video port supports 60Hz YCrCb 4:2:2
16Bit / 8 Bit format, ZV Port output format, RGB raw data 16Bit/8Bit output format and CCIR601/
CCIR656 format. The built-in SCCB (Serial Camera Control Bus) interface provides an easy way
of controlling the built-in camera functions.
1.1 FEATURES
Single chip digital color/black&white video camera chip.
Scanning - Interlaced / Progressive Scan.
Format - 1/3" lens compatible.
Image area -4.86X 3.64mm.
Total active pixel elements - (H)664 x (V)492 square pixel.
Default active pixel element -(H)640 x (V)480.
Pixel size: 7.6 x 7.6um.
10Bit two channel internal A/D Converter and 8/10 Bit Output.
PCLK and HREF polarity programmable.
Digital Output format -
YCrCb 16bit/8bit selectable
60Hz 16 Bit YCrCb 4:2:2 - 640x480
60Hz 8 Bit YCrCb 4:2:2 - 640x480
RGB Raw Data Digital Output 16Bit/8Bit selectable
Two-line output:
Y Channel: B G B G B G ...
UV Channel: G R G R G R ...
Two-line alternate output:
Y Channel: G G G G G G ...
UV Channel: B R B R B R ...
One-line output, use Y Channel only, effective only in Progressive Scan Mode
1st line: B G B G B G B G...
2nd line: G R G R G R G R ...
CCIR601 /CCIR656 standard.
YCrCB or YUV output format to support TV or monitor display
ZV Port YUV 16 Bit format.
QVGA format(320x240).
Y/UV or RGB output byte MSB and LSB swap.
SCCB interface, support fast mode: 400 kBit/s.
External Field Sync input.
External Horizontal / Vertical Sync input format, OV7620 worked as slave chip.
Support external micro-controller and RAM interface
Progressive Scan mode: support whole-frame exposure.
Programmable frame rate - 0.5 to 30fps.
Electronic shutter setting (use 27Mhz crystal and default clock rate).
Interlaced: 1/60 to
1
/
15734
(s)
OV7620 Product Specifications - Rev. 1.2 (5/13/00)
OMNIVISION TECHNOLOGIES INC.
3
Preliminary
Company Confidential
Progressive Scan: 1/30 to 1/15734(s)
AGC (+24dB) - auto / programmable.
PreAmp Gain 6/12 db.
Auto-Exposure-ratio programmable.
White balance - auto/programmable.
Auto-White-Balance-ratio programmable.
Brightness & contrast adjustment.
Color Saturation adjustment.
Aperture correction.
Multiple gamma correction curve selection.
Multiple luminance gamma correction curve selection.
S/N ratio > 48 dB.
Software/Hardware Reset.
Software/hardware power saving control
Minimum illumination 2.5 lux at f1.4 (3000k).
Optical fill factor is 40%.
Supply: 5 volt for analog and Digital circuit;5volt or 3.3volt for digital interface.
Power consumption < 120 mW.
Power-save mode < 10 uA.
Chip SCCB ID: 0 1 0 CS2 CS1 CS0 1 R/W (CS2 CS1 CS0 select by PIN when power-on, default 0).
48pin package.
OV7620 Product Specifications - Rev. 1.2 (5/13/00)
OMNIVISION TECHNOLOGIES INC.
4
Preliminary
Company Confidential
1.2 Pin Assignments
Table 1:Pin Descriptions
(Pin type and default level: I-1: digital input+10k pull up; I-0: digital input +10k pull
down, XI/XO; xtal IO; /Secondary functions are set during power up; O/I: digital CMOS level output Bias: power
supply bias.).
Pin #
Name
Class
Function
1
SVDD
Bias
Sensing Power (+5V) pins.
8, 14,44
AVDD
Bias
Analog Power (+5V) pins.
29
DVDD
Bias
Digital Power (+5V) pins.
32
DOVDD
Bias
Digital I/O Power (+5V / +3.3V) pins.
48
SGND
Bias
Sensing ground connections. Connect to supply common
6, 7, 15, 43
AGND
Bias
Analog ground connections. Connect to supply common
30
DGND
Bias
Digital ground connection. Connect to supply common
31
DOGND
Bias
Digital Output ground connection.
2
RESET
I
Chip reset, "high" active.
3
AGCEN/RAMINT
I-I
AGCEN =1 enables the Auto Gain Control. AGCEN = 0 disables it.
This pin setting is effective when pin SBB = 1.
RAMINT=1 initializes frame transfer.
4
FREX
I
Frame exposure control input, effective in progressive scan only.
The positive width of FREX defines the exposure time.
5
VrEQ
CAP
Internal voltage reference. Requires an 0.1uF decoupling capacitor
to ground.
9
PWDN
I-0
PWDN =1 puts chip in power down (sleep) mode.
10
VrS
CAP
Internal voltage reference. Requires an 0.1uF decoupling capacitor
to ground.
11
VcCHG
CAP
Internal voltage reference. Requires an 1.0uF decoupling capacitor
to ground.
12
SBB
I
SBB = 1 selects the power-up method of programming the internal
functions. SBB = 0 selects the SCCB pin programming method.
Results of the power-up method can only be changed by a new
power-up or reset sequence.
13
VTO
O
Video Test Output (NTSC)
16
VSYNC/CSYS
O/I
VSYNC: Vertical sync output. This pin is asserted high during sev-
eral scan lines in the vertical sync period.
CSYS: Composite Sync. When not using SCCB, a 10k pull up
changes pin 42(CHSYNC) to CSYS.
17
FODD/SRAM
O/I
FODD: Odd field flag. Asserted high during the odd field, low during
the even field.
SRAM: External SRAM
18
HREF/VSFRAM
O/I
HREF: Horizontal window reference output. HREF is high during the
active pixel window, otherwise low.
VSFRAM: Vertical Sync Frame.
19
UV7/B8
O/I
UV7: Digital output UV bus. UV7 used for 16-bit operation for out-
putting chrominance data.
B8: Switch for 8 bit mode luminance/Chroma tristate. Default is 16
bit mode.
20
UV6/BPCLR
O/I
UV6: Digital output UV bus. UV6 used for 16-bit operation for out-
putting chrominance data.
BPCLR: Bypass RGB color matrix.
21
UV5/MIR
O/I
UV5: Digital output UV bus. UV5 used for 16-bit operation for out-
putting chrominance data.
MIR: Mirror.
OV7620 Product Specifications - Rev. 1.2 (5/13/00)
OMNIVISION TECHNOLOGIES INC.
5
Preliminary
Company Confidential
22
UV4/SLAEN
O/I
UV4: Digital output UV bus. UV4 used for 16-bit operation for out-
putting chrominance data.
SLAEN: Slave Enable.
23
UV3/ECLKO
O/I
UV3: Digital output UV bus. UV3 used for 16-bit operation for out-
putting chrominance data.
ECKLO: Swap clock output - changes pin 17(FODD) to XCLK out.
24
UV2/QVGA
O/I
UV2: Digital output UV bus. UV2 used for 16-bit operation for out-
putting chrominance data.
QVGA: QVGA format (320x240)
25
UV1/CC656
O/I
UV1: Digital output UV bus. UV1 used for 16-bit operation for out-
putting chrominance data.
CC656: CCIR 656 mode.
26
UV0/GAMDIS
O/I
UV0: Digital output UV bus. UV0 used for 16-bit operation for out-
putting chrominance data.
GAMDIS: Disables Chroma Gamma (RGB).
27, 28
XCLK1, XCLK2
XO, XI
XCLK1 and XCLK2 are the input/output of the on-chip video oscilla-
tor. Nominal crystal clock frequency is 27MHz. If an external clock is
used, input to XCLK1, leave XCLK2 unconnected.
33
PCLK/OUTX2
O/I
PCLK: Pixel clock output. By default, data is updated at the falling
edge of PCLK and is stable at its rising edge. PCLK runs at the pixel
rate in 16-bit bus operations and twice the pixel rate in 8-bit bus
operations
OUTX2: Doubles current output.
34
Y7/CSO
O/I
Y7: Digital output Y bus. In a 16-bit operation, the luminance data is
clocked out of this bus at the rate of one byte per pixel. In 8-bit oper-
ation, the luminance data and the chrominance data is multiplexed
to this bus.
CSO: ID configuation bit for the SCCB slave ID.
35
Y6/CS2
O/I
Y6: Digital output Y bus. In a 16-bit operation, the luminance data is
clocked out of this bus at the rate of one byte per pixel. In 8-bit oper-
ation, the luminance data and the chrominance data is multiplexed
to this bus.
CS2: ID configuation bit for the SCCB slave ID.
36
Y5/SHARP
O/I
Y5: Digital output Y bus. In a 16-bit operation, the luminance data is
clocked out of this bus at the rate of one byte per pixel. In 8-bit oper-
ation, the luminance data and the chrominance data is multiplexed
to this bus.
SHARP: Enable Analog Sharpness.
37
Y4/CS1
O/I
Y4: Digital output Y bus. In a 16-bit operation, the luminance data is
clocked out of this bus at the rate of one byte per pixel. In 8-bit oper-
ation, the luminance data and the chrominance data is multiplexed
to this bus.
CS1: ID configuation bit for the SCCB slave ID.
38
Y3/RAW
O/I
Y3: Digital output Y bus. In a 16-bit operation, the luminance data is
clocked out of this bus at the rate of one byte per pixel. In 8-bit oper-
ation, the luminance data and the chrominance data is multiplexed
to this bus.
RAW: Raw Data.
39
Y2/G2X
O/I
Y2: Digital output Y bus. In a 16-bit operation, the luminance data is
clocked out of this bus at the rate of one byte per pixel. In 8-bit oper-
ation, the luminance data and the chrominance data is multiplexed
to this bus.
G2X: Gain 2X.
Pin #
Name
Class
Function
PDF 
ZIP