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PDF VV6410 Data sheet ( Hoja de datos )
| Número de pieza | VV6410 | |
| Descripción | Mono and Colour Digital Video CMOS Image Sensors | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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VV5410 & VV6410
®
Mono and Colour Digital Video CMOS Image Sensors
The VV5410/VV6410 are multi format digital output imaging
devices based on STMicroelectronics’s unique CMOS
sensor technology. Both sensors require minimal support
circuitry.
VV5410 (monochrome) and VV6410 (colourised) produce
digital video output. The video streams from both devices
contain embedded control data that can be used to enable
frame grabbing applications as well as providing input data
for the external exposure controller.
The pixel array in VV6410 is coated with a Bayer colour
pattern. This colourised sensor can interface to a range of
STMicroelectronics co-processors. A chipset comprising
VV6410 and STV0657 will output 8bit YUV or RGB digital
video. A USB camera can be realised by partnering VV6410
with STV0672. Finally a high quality digital stills camera can
be produced by operating VV6410 with STV0680B-001.
Please contact STMicroelectronics for ordering information
on all of these products.
Both VV5410 and VV6410 are initialised in a power saving
mode and must be enabled via I2C control before they can
produce video. The I2C allows the master coprocessor to
reconfigure the device and control exposure and gain
settings.
USB systems are catered for with an ultra low power, pin
driven, suspend mode.
The on board regulator can supply sufficient current drive to
power external components, (e.g. the video coprocessor).
Functional block diagram
DATA
FST
LST
QCK
DIGITAL
CONTROL
LOGIC
READOUT
STRUCTURE
SRAM LINE STORE
X-DECODER
COLUMN ADC
SUSPEND
OEB
SCL
SDA
Y-
DECODER
PIXEL ARRAY
VOLTAGE REFERENCES,VOLTAGE REGULATORS AND AUDIO AMP CIRCUITRY
Key Features
• 3.3V operation
• Multiple video formats available
• Pan tilt image feature
• Sub sampled image full FOV feature
• On board 10 bit ADC
• On board voltage regulator
• Low power suspend mode for USB systems
• Automatic black and dark calibration
• On board audio amplifier
• I2C communications
Applications
• PC camera
• Personal digital assistant
• Mobile video phones
• Digital stills cameras
Specifications
Effective image sizes after 352 x 288 (CIF,PAL)
colour processing
176 x 144 (QCIF)
Pixel resolution
up to 356 x 292
Pixel size
7.5µm x 6.9µm
Array size
2.73mm x 2.04mm
Exposure control
+81dB
Analogue gain
+12dB (recommended max)
SNR
c.56dB
Random Noise
1.17mV
Sensitivity (Green channel) 2.1V/lux.sec
Dark Current
46mV/sec
VFPN
1.2mV
Supply voltage
3.0V- 6.0V DC +/− 10%
Supply current
26.2mA (max,CIF@30fps)
85µA (suspend mode)
Operating temperature
(ambient)
0oC - 40oC
Package type
36pin CLCC
cd5410-6410f: Rev 3.0 28 September 2000
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1 page  
CMOS Sensor; Customer Datasheet, Rev 3.0, 28 September 2000
VV5410 & VV6410
2. Introduction
2.1 Overview
VV5410/VV6410 is a CIF format CMOS image sensor. The VV5410 sensor is the basic monochrome device and VV6410 is the
colourised variant. The operation of VV5410 and VV6410 is very similar but any differences will be identified and explained.
VV6410 can output digital colourised pixel data at frame and line rates compatible with either NTSC or PAL video standards.
VV5410 and VV6410 contain the same basic video timing modes. Table 2 summarises these video modes.
The various operating modes are detailed in Section 3.
Important: VV5410 and VV6410’s output video data stream only contains raw data. A master co-processor is required to
generate a video waveform that can be displayed on a VDU
Mode
QCIF - 25 fps
QCIF - 30 fps
QCIF - 60 fps
CIF - 25 fps
CIF - 30 fps
NTSC (3.2 fsc)
PAL (3.2 fsc)
Input Clock
(MHz)Note
8.00
8.00
16.00
16.00
16.00
28.636360 / 2.5
35.46895 / 2.5
System
Clock
Divisor
Image Size
Line Time
(µs)
8
180 x 148
250.00
8
180 x 148
208.00
8
180 x 148
104.00
4
356 x 292
125.00
4
356 x 292
104.00
2
306 x 244
63.555564
2
356 x 292
63.999639
Table 2 : Video Modes
Lines
per
Frame
160
160
160
320
320
525
625
Frame Rate
(fps)
25.00000
30.04807
60.09614
25.00000
30.04807
29.97003
25.00014
Note: The user can also provide a 24 MHz clock, rather than a 16 MHz clock, for the QCIF-60fps, CIF-25fps and CIF-30fps
modes, which the sensor then internally divides by 1.5, (see data_format[22]), to give an effective input clock frequency of 16
MHz.
2.2 Exposure Control
VV5410/VV6410 does not include any form of automatic exposure and/or gain control. Thus to produce a correctly exposed
image the integration period for the pixels, in the sensor array, an exposure control algorithm must be implemented externally.
The new exposure values are written to the sensor via the serial interface.
2.3 Digital Interface
The sensor’s offers a very flexible digital interface, the main components of which are listed below:
1. A tri-stateable 5-wire data bus (D[4:0]) for sending both video data and embedded timing references.
2. 4-wire and 8-wire data bus alternatives available. If the 8-wire option is selected then the FST/LST pins are reconfigured to
output data information.
3. A data qualification clock, QCK, which can be programmable via the serial interface to behave in a number of different ways
(Tri-stateable).
4. A line start signal, LST (Tri-stateable).
5. A frame start signal, FST (Tri-stateable).
6. OEB tri-states all 5 data bus lines, D[4:0], the qualification clock, QCK, LST, FST and D[7].
7. A 2-wire serial interface (SDA,SCL) for controlling and setting up the device.
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5 Page 
CMOS Sensor; Customer Datasheet, Rev 3.0, 28 September 2000
Odd Even
Columns Columns
(1,3,5,...) (2, 4, 6,...)
Odd Rows
(5, 7, 9,...) Green 1 Red
Even Rows
(4, 6, 8,...)
Blue Green 2
VV5410 & VV6410
Figure 2 : Bayer Colourisation Pattern (VV6410 only)
3.3 X-offset and Y-offset
The image information is retrieved from the pixel array via a 2 dimensional address. The x and y address busses count from a
starting point described by x-offset, y-offset up to a maximum count in x and y that is determined by the image size. The order of
this count and the count step size is dependent upon the special image format parameters described below. The detailed control
of the x and y address counters is entirely handled by the sensor logic
As can be seen in Figure 3 the visible array size is 364 columns by 296 rows. The PAL and CIF images are sized, 356 columns
by 292 rows, thus we have a “border” of visible pixels that we do not read out if either of these modes are selected.
The images that are read out of the sensor are always “centred” on the array, therefore we allow a border of 4 columns at either
end of the image in the x-direction and a border of 2 rows at the top and bottom of the image in the y-direction. The pantilt QCIF
and NTSC video modes are similarly centred within the full size array.
For all the modes except the pantilt QCIF the x and y offset coordinates are fixed. If the user selects the pantilt QCIF mode then
they may specify x and y-offsets in the range:
• (xoffset >= 1) and (xoffset <= 185)
• (yoffset >= 5) and (yoffset <= 149)
The sensor will automatically clip values outwith the specified ranges. The y addresses less than 5 are reserved for the sensor
black lines and the y address greater than 296 are reserved for the sensor dark lines. Neither the black lines nor the dark lines
contain visible image data
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11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet VV6410.PDF ] | |
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