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VV5404C001 데이터시트 PDF




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부품번호 VV5404C001 기능
기능 Mono and Colour Digital Video CMOS Image Sensors
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VV5404C001 데이터시트, 핀배열, 회로
VV5404 & VV6404
®
Mono and Colour Digital Video CMOS Image Sensors
DESCRIPTION
VV5404 and VV6404 are highly integrated CMOS VLSI
sensors which enables high standards of performance and
image quality at a very cost-effective price point. The 356 x
292 monochrome device offers one of the simplest routes
currently available to design-in of imaging applications, while
the colour device is ideal for low cost PC camera applications.
Both devices incorporate a comprehensive range of on-board
controls eliminating the need for additional support chips. On-
chip A/D conversion provides 8 bit digital output and the
device set up is fully automatic via the built-in automatic black
level calibration algorithm.
Exposure and gain settings are programmable and operation
is controlled via a serial interface.
This sensors offer variable frame rates of up to 30 frames per
second and a 4 wire digital video bus. The digital interface
also provides a tri-stateable data qualification clock and frame
synchronisation signal.
Hand-held products, in applications such as PDAs, bar code
scanning or automatic meter reading, will benefit from the low
power requirements and from the inbuilt sleep and power
down modes.
The price and performance standards introduced with the
VV5404 and VV6404 enable use of an imaging solution
where previously it may not have been practicable on cost
grounds.
BLOCK DIAGRAM
CLKI
CLKO
SIN
BLACK
CALIBRATION
IM A G E
FORMAT
EXPOSURE
R E G IS T E R S
SERIAL
IN T E R -
FACE
VERTICAL
SHIFT
R E G IS T E R
ANALOG
VOLTAGE
REFS.
PHOTO DIODE
ARRAY
SAMPLE & HOLD
HORIZONTAL SHIFT
REGISTER
OUTPUT
FORMAT
8-bit
ADC
GAIN
STAGE
SDA
SCL
D[3:0]
QCK
FST
OEB
FEATURES
• CIF Format mono or colour pixel array
• Up to 30 frames per second operation
• On-chip 8 bit analogue to digital converter
• Low power consumption
• Up to 356 x 292 pixel image size
• Automatic exposure and gain control
• Serial interface control
• Programmable exposure and gain values
• Automatic black level calibration
• 4-wire digital video bus
• Evaluation kit available
APPLICATIONS
• PC Cameras
• Biometrics
• Inspection Systems
SPECIFICATIONS
Pixel resolution 356 x 292 (CIF)
Array size
4.272mm x 3.212mm
Pixel size
12.0 µm x 11.0 µm
Min. illumination 0.1 lux
Exposure control Automatic (to 25000:1)
Gain control
Automatic (to +20dB)
Signal/Noise ratio 46dB
Supply voltage
5.0v DC +/− 5%
Supply current
<75mA
Operating
temperature
(ambient)
0oC - 40oC
(for extended temp. info please con-
tact STMicroelectronics)
Package type
48LCC
Important:
1. A colour co-processor is required to convert the VV6404 sensor’s video
data stream of raw colourised pixel data into either a CIF or QCIF for-
mat RGB or YUV colour image.
2. VV5404 and VV6404 do NOT have any form of automatic exposure
control. This must be performed externally.
CD5404-6404F-A
1/54




VV5404C001 pdf, 반도체, 판매, 대치품
VV5404 & VV6404
1. Introduction
VV5404 and VV6404 are CIF format CMOS image sensors capable of outputing digital pixel data at frame rates, of
upto 30 frames per second. The VV5404 is a monochrome part, while the VV6404 has a colour filter applied over the
sensor array.
Important: The VV6404 sensor’s video data stream only contains raw colourised pixel data. A colour co-processor
is required to generate for example either a CIF or a QCIF format YUV colour image.
The 356 x 292 pixel sensors have an on-chip 8-bit analogue to digital converter (Figure 1). The sensors offer very
flexible digital interface, the main components of which are listed below:
1. A tri-stateable 4-wire data bus (D[3:0]) for sending both video data and embedded timing references.
2. A data qualification clock, QCK, which can be programmable via the serial interface to behave in a number of
different ways (Tri-stateable).
3. A frame start signal, FST (Tri-stateable).
4. A 2-wire serial interface (SDA,SCL) for controlling and setting up the device.
5. The ability to synchronise the operation of multiple cameras - synchronisation input, SIN.
An 8-bit pixel value is transmitted across the 4 wire tri-stateable databus as series pair of 4-bit nibbles, most significant
nibble first. Along within the pixel data, codes representing the start and end frames and the start and end of lines are
embedded within the video data stream to allow the video processor to synchronise with video data the camera
module is generating. Section 4. defines the format for the output video datastream.
CLKI
CLKO
SIN
BLACK
CALIBRATION
IMAGE
FORMAT
EXPOSURE
REGISTERS
SERIAL
INTER-
FACE
SDA
SCL
VERTICAL
SHIFT
REGISTER
PHOTO DIODE
ARRAY
OUTPUT
FORMAT
D[3:0]
QCK
FST
OEB
ANALOG
VOLTAGE
REFS.
SAMPLE & HOLD
HORIZONTAL SHIFT
REGISTER
8-bit
ADC
GAIN
STAGE
Figure 1 : Block Diagram of VV5404 and VV6404 Image Sensors
To complement the embedded control sequences a data qualification clock, QCK, and a frame start signal are also
available. QCK can be set-up to either be:
1. Disabled
2. Free-running.
3. Qualify only the control sequences and the pixel data.
4. Qualify the pixel data only
There is also the choice of two different QCK frequencies, where one is twice the frequency of the other.
CD5404-6404F-A
4/54

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VV5404C001 전자부품, 판매, 대치품
0 1 23
0 Green Red Green Red
1 Blue Green Blue Green
2 Green Red Green Red
3 Blue Green Blue Green
Border Rows and Columns
0, 1, 2, 3,...
... 352, 353, 354, 355
352 Pixels
Pixel Array
356 Pixels
Figure 4 : VV6404 Colourised Image Format
Green Red Green Red 288
Blue Green Blue Green 289
Green Red Green Red 290
Blue Green Blue Green 291
352 353 354 355

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VV5404C001

Mono and Colour Digital Video CMOS Image Sensors

STMicroelectronics
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