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VL6524 Schematic ( PDF Datasheet ) - ST Microelectronics

Teilenummer VL6524
Beschreibung VGA Mobile Camera Module
Hersteller ST Microelectronics
Logo ST Microelectronics Logo 




Gesamt 30 Seiten
VL6524 Datasheet, Funktion
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VL6524
VS6524
Features
640H x 480V active pixels
3.6 µm pixel size, 1/6 inch optical format
RGB Bayer color filter array
Integrated 10-bit ADC
Integrated digital image processing functions,
including defect correction, lens shading
correction, demosaicing, sharpening, gamma
correction and color space conversion
Embedded camera controller for automatic
exposure control, automatic white balance
control, black level compensation, 50/60 Hz
flicker cancellation and flashgun support
Up to 30 fps progressive scan, flexible
subsampling and cropping modes
ITU-R BT.656-4 YUV (YCbCr) 4:2:2 with
embedded syncs, RGB 565, RGB 444 or Bayer
10-bit output formats
Viewlive feature allows different sizes, formats
and reconstruction settings to be applied to
alternate frames
8-bit parallel video interface, horizontal and
vertical syncs, 24 MHz clock
Two-wire serial control interface (I2C)
On-chip PLL, 6.5 to 26 MHz clock input
Analog power supply, from 2.4V to 3.0V
Separate I/O power supply, 1.8V or 2.8V levels
3.3V tolerant I/O for power supply > 2.7V
Integrated power management with power
switch, automatic power-on reset and power-
safe pins
Low power consumption, ultra low standby
current
Dual-element plastic lens, F# 2.8, ~59° DFOV
(VS6524)
VGA single-chip camera module
Preliminary Data
SmOP
LGA
Description
The VL6524/VS6524 is a general purpose VGA
resolution CMOS color digital camera featuring
low size and low power consumption. This
complete camera module is ready to connect to
camera enabled baseband processors, back-end
IC devices or PDA engines.
Applications
Mobile phone
Videophone
Video surveillance
Medical
Machine Vision
Toys
PDA
Biometry
Bar Code Reader
Lighting Control
November 2006
Rev 3
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
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VL6524 Datasheet, Funktion
List of tables
List of tables
VL6524/VS6524
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Table 44.
VL6524/VS6524 signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Subsampled image sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
ITU656 embedded synchronization code definition (even frames). . . . . . . . . . . . . . . . . . . 27
ITU656 embedded synchronization code definition (odd frames). . . . . . . . . . . . . . . . . . . . 28
Mode 2 - embedded synchronization code definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Data type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Low-level control registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Device parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Mode control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Mode status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
RunModeControl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Clock manager input control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Power management control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Frame rate control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Pipe setup bank selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Pipe setup bank0 control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Pipe setup bank1 control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
View live control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
White balance control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Exposure control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Exposure status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Exposure algorithm control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Flashgun control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Flicker frequency control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Defect correction control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Sharpening control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Fade to black damper control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Dither control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Output formatter control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Optical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
VS6524 average sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Supply specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
DC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Typical current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
External clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Serial interface voltage levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Timing specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Parallel data interface timings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
ESD handling characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
LGA package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
VL6524 pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
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VL6524 pdf, datenblatt
System architecture
VL6524/VS6524
3.2 Microprocessor functions
The microprocessor inside the VL6524/VS6524 performs the following tasks:
Host communication: handles the I²C communication with the host processor.
Video pipe configuration: configures the video pipe modules to produce the output
required by the host.
Automatic exposure control: In normal operation the VL6524/VS6524 determines the
appropriate exposure settings for a particular scene and outputs correctly exposed images.
Flicker cancellation: The 50/60Hz flicker frequency present in the lighting (due to
fluorescent lighting) can be cancelled by the system.
Automatic white balance: The microprocessor adjusts the gains applied to the individual
color channels in order to achieve a correctly color balanced image.
Dark calibration: The microprocessor uses information from special dark lines within the
pixel array to apply an offset to the video data and ensure a consistent ‘black’ level.
Active noise management: The microprocessor is able to modify certain video pipe
functions according to the current exposure settings determined by the automatic exposure
controller. The main purpose of this is to improve the noise level in the system under low
lighting conditions. Functions which ‘strength’ is reduced under low lighting conditions (e.g.
sharpening) are controlled by ‘dampers’. Functions which ‘strength’ is increased under low
lighting conditions are controlled by ‘promoters’. The fade to black operation is also
controlled by the microprocessor
12/70

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