|
|
PDF MCM20014 Data sheet ( Hoja de datos )
| Número de pieza | MCM20014 | |
| Descripción | Color VGA Digital Image Sensor | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MCM20014 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
1/3” Color VGA Digital Image Sensor
640 x 480 pixel progressive/interlace scan
solid state image sensor with integrated CDS/PGA/ADC,
digital programming, control, timing, and pixel correction
features
Order this document by MCM20014/D
MCM20014
ImageMOS
Features:
• VGA resolution, active CMOS image sensor with square pixel unit cells
• 7.8µm pitch pixels with patented pinned photodiode architecture
• Bayer-RGB color filter array with optional micro lenses
• High sensitivity, quantum efficiency, and charge conversion efficiency
• Low fixed pattern noise / Wide dynamic range
• Antiblooming and continuous variable speed shutter
• Single master clock operation
• Digitally programmable via I2C interface
• Integrated on-chip timing/logic circuitry
Ordering Information
• CDS sample and hold for suppression of low frequency and correlated reset
noise
Device
Package
• 48X programmable variable gain to optimize dynamic range and facilitate white MCM20014IBMN 48 CLCC-IB
balance and iris adjustment
• 10-bit, pipelined algorithmic RSD ADC
• User selectable digital output formats:
Monochrome
MCM20014IBB
48 CLCC-IB
• 8-bit companded data
Color
• 10-bit linear data
• Column offset correction, and Bad Pixel Replacement for noise suppression
• Pixel addressability to support ‘Window of Interest’ windowing, resolution, and subsampling
• 30fps full VGA at 10Mhz Master Clock Rate
• Single 3.3V power supply
• 48 pin CLCC package
The MCM20014 is a fully integrated, high performance CMOS image sensor with features such as integrated timing
control, and analog signal processing for digital imaging applications. The part provides designers a complete im-
aging solution with a monolithic image capture and processing engine thus making it a true “camera on a chip”. Sys-
tem benefits enable design of smaller, portable, low cost and low power systems. Thereby making the product
suitable for a variety of consumer applications including still/full motion imaging, security/surveillance, and automo-
tive among others.
The imaging pixels are based on active CMOS pixels using pinned photodiodes that are realized using Motorola’s
sub-micron ImageMOSTM technology. The frame rate is completely adjustable from 0 to 30 frames per second
without adjusting the system clock from 10Mhz. Each pixel on the sensor is individually addressable allowing the
user to control “Window of Interest” (WOI) panning and zooming, sub-sampling, resolution, exposure, gain, and
other image processing features via a two pin I2C interface. Programmable digital signal processing blocks
included in the data path are bad-pixel replacement and noise compensation for image enhancement. The sensor
is run by supplying a single Master Clock. The sensor output is 8 or 10 digital bits depending on output mode
selected.
This document contains information on a new product.
Specifications and information herein are subject to change without notice.
November 2000
MOTOROLA, INC. 2000
1 page  
enables enhanced sensitivity in the entire visual spec-
tral range and a lag free operation.
The nominal photoresponse of the MCM20014 is shown
in Figure 3.
Figure 3. MCM20014 Nominal spectral response
In addition to the imaging pixels, there are additional
pixels called dark and dummy pixels at the periphery of
the imaging section (see Figure 2). The dark pixels are
covered by a light blocking shield rendering the pixels
underneath insensitive to photons. These pixels provide
the sensor means to measure the dark level offset
which is used downstream in the signal processing
chain to perform auto black level calibration. The dum-
my pixels are provided at the array’s periphery to elimi-
nate inexact measurements due to light piping into the
dark pixels adjacent to active pixels. The output of these
pixels should be discarded.
Electronic shuttering, also known as electronic expo-
sure timing in photographic terms, is a standard feature.
The pixel integration time can be widely varied from a
small fraction of a given frame readout time to the entire
frame time. This feature can be especially useful in sit-
uations such as imaging of fast moving objects where
maximum available integration time is long enough to
cause smear or blurring or when imaging a bright scene
where there are enough photons to cause an early sat-
uration of the pixel.
2.1.2 Color Separation and Fill Factor Enhancement
The MCM20014 family is offered with the option of
monolithic polymer color filter arrays (CFAs). The com-
bination of an extremely planarized process and propri-
atary color filter technology result in CFAs with superior
spectral and transmission properties. The standard op-
tion (Part # MCM20014IBBN) is a primary (RGB) “Bay-
er” pattern (see Figure 4), however, facility to produce
customized CFAs including complementary (CMYG)
mosaics also exists. Depending on the application, the
choice between primary or complementary filter mosa-
ics should be made. In general, primary mosaics are
used in still video while complementary are used in real
time video applications.
Applications requiring higher sensitivity can benefit from
the optional micro-lens arrays shown in Figure 5. The
lenslet arrays can improve the fill factor (aperture ratio)
of the sensor by 1.5-2x depending on the F number of
the main lens used in the camera system. Microlenses
yield greatest benefits when the main lens has a high F
number. As a caution, unoptimized F numbers can lead
to optical aberrations hence, care should be taken when
MCM20014
MOTOROLA
5
5 Page 
The default is the linear curve, breakpoints can be se-
lected via the slope and breakpoint control bits on the
255
Post ADC Control Register. This function can be by-
passed to output 10-bit linear data.
Reg 32h = 8Fh
127
111
95
79
63
47
31
15
0
0
Reg 32h = 8Bh
63 127 191 255
511 Data IN (10-bit)
Figure 13. Available Companding Curves
1023
2.4 Additional Operational Conditions
The MCM20014 includes initialization, standby modes,
and external reference voltage outputs to afford the
user additional applications flexibility.
2.4.1 Initialization
The INIT input pin (#28) controls reinitialization of the
MCM20014. This serves to assure controlled chip and
system startup. Control is asserted via a logic high in-
put. This state must be held a minimum of 1 ms and a 1
ms “wait period” should be allowed before chip process-
ing to ensure that the start-up routines within the
MCM20014 have run to completion, and to guarantee
that all holding and bypass capacitors, etc. have
achieved their required steady state values.
Tasks which are accomplished during startup include:
reset of the utility programming registers and initializa-
tion to their default values (please refer to previous sec-
tion for settings), reset of all internal counters and
latches, and setup of the analog signal processing
chain.
2.4.2 Standby Mode
The standby mode option is implemented to allow the
user to reduce system power consumption during peri-
ods which do not require operation of the MCM20014.
This feature allows the user to extend battery life in low
power applications.
By utilizing this mode, the user may reduce dynamic
power consumption from 400mW, in the active process-
ing, 13 Million Samples per Second mode, to <50 mW
in the standby mode (note that dynamic power con-
sumption is also reduced in slower conversion speed
applications).
MCM20014
MOTOROLA
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MCM20014.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MCM20014 | Color VGA Digital Image Sensor | Motorola Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |