|
|
PDF DLIS-2K Data sheet ( Hoja de datos )
| Número de pieza | DLIS-2K | |
| Descripción | Ultra-Configurable Monochrome Linear Sensor | |
| Fabricantes | Panavision Imaging | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de DLIS-2K (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
DLIS-2k Advanced Information
DLIS-2K
Ultra-Configurable
Monochrome Linear Sensor
ONE TECHNOLOGY PLACE – HOMER, NEW YORK 13077
DLIS-2K IMAGER – Quad Line Scan Sensor with
11 bit A/D, High Dynamic Range (HDR), and
Correlated Multi-Sampling (CMS) for Enhanced
Sensitivity is designed for a wide variety of
applications, including:
• Barcode
• Machine Vision
• Edge Detection
• Contact Imaging
• Finger Printing
• Encoding and Positioning
Key Features
Pixel Orientation
Pixel Layout Dimension in microns.
• Four Rows: 1 row of tall pixels (4x32 micron) and 3
Readout starts at Pixel 1, selected row.
rows of square pixels (4x4 micron)
• Integrated 11 bit Distributed A/D with parallel
10 bit digital output
• Output speeds to 120 MHz
• Sensitivity ≤ 160 V/lux.s
• Automatic Dynamic Thresholding™ with binary
Brief Description
output
• Integrated CDS
• Multiple Readout modes
•Ambient Light Subtraction
•High Dynamic Range (HDR)
•Correlated Multi-Sampling (CMS)
The DLIS-2K Linear Image Sensor consists of 4 rows of
pixels, each with 2080 optical pixels and 16 dark pixels.
Three rows are made up of 4 micron x 4 micron square
pixels and the other is an array of rectangular 4 micron
wide x 32 micron tall pixels with equivalent sensitivity ≤
160 V/lux.s by utilizing Correlated Multi-Sampling
•Non-Destructive Read mode
(CMS). There is a 4 micron space between rows 1 & 2.
•Binning of different rows
One to four rows may be selected for readout. Each row
•4K pixels – 2 rows of 2K pixels
has independent control of reset and integration.
offset 2 microns
Additionally the background sample can be selected as the
•Readout one to four rows
• Programmable Gain & Offset (2 bit control)
• Onboard Test Mode capabilities, including
External Input to A/D
• Tri-State Outputs
• Power Down Mode
• Single Power Supply 3.3 Volts
• Semi-custom options available
reset value for normal Correlated Double Sampling (CDS)
or can be selected to be the ambient light sample with
integration time controlled by the user. The sensor is
programmable via a 3-wire serial interface and combined
with our patented high speed Distributed 8 to 11 bit Analog
to Digital Converter (D/AD™), XtremePIX®, and Active
Column Sensor™ (ACS®) technologies to enable a
powerful imaging combination for the most demanding
applications.
PDS0038 Rev G.doc
©2008 Panavision Imaging, LLC All rights reserved.
Subject to change without notice.
Page 1 of 30
1 page  
DLIS-2k Advanced Information
This sensor allows the user to select if the background sample is the normal reset value or the user can allow the
sensor to integrate for some period of time after reset and capture an ‘ambient light sample’ as the background
sample. This is very useful for applications where an artificial light source such as an LED or laser is used to
illuminate the target. For example, if the laser pulse is 1 ms the user can first sample a 1ms ambient background
without the laser and then again for 1ms with the laser. The on chip circuit then automatically subtracts the two
outputting only the desired laser signal. The Binary Counter and Digital Latches, that follow the CDS form integral
parts of the Distributed Analog-to-Digital Converter or D/AD™ that enable the XtremePIX™ architecture
(described further in this section).
The Binary Counter generates up to a 12-bit count that is used by the DAC for the D/AD™ for converting the
sampled raw analog video and raw analog background up to 11-bit raw digital video and 11-bit raw digital
background respectively, using the DAC Ramp as the analog reference. The Binary Counter is equipped with a
Preload feature to initialize the start count. The user may also utilize an external ramp via RAMP input pin, and
select the appropriate programming features. An external differential DAC (of at least 11-bit precision) should be
used to generate the Ramp input into the D/AD™ via a precision amplifier with appropriate filter to cancel out any
external noise.
The DATA_VALID signals specifies the period of active pixel data Data-synched Output clock called PIX_CLK is
provided for further external video processing.
Active Column Sensor™/ ACS®
The Panavision Imaging’s -exclusive Active Column Sensor™ technology (ACS®) provides video signals that are
inherently free of fixed pattern noise (FPN) caused by gain and offset of pixel amplifiers. Rather than using an
independent, open loop source follower amplifier per pixel like APS imagers do, the ACS® technique uses a single,
closed loop unity gain amplifier (UGA) that is shared among all of the pixels in a column. Thus, each pixel has a
virtual closed-loop amplifier, that is, each pixel in a column behaves as if it has its own closed-loop UGA but
having identically the same gain and offset. Since all of the columns employ closed-loop UGAs, the gain uniformity
from column to column is also exceedingly high. The correlated double-sampling circuit that follows each UGA
removes any UGA offset. In the DLIS-2K/4K devices the ACS® amplifier was modified into a comparator and
traditional sample-and-hold capacitors were eliminated in order to achieve true Correlated Double-Sampling (CDS)
and true Correlated Multi-Sampling (CMS). For more details of the ACS® technology see references [1- 3].
Sensor Technology
The XtremePIX™ sensor technology is a revolution in image sensor architecture, enabling CCD image quality with
the benefits of CMOS: excellent image quality, high sensitivity for low-light imaging, low power, highly integrated,
small form factor, and low cost. The XtremePIX™ sensor technology is the next generation of ACS® and enables
true Correlated Double Sampling (CDS), not pseudo CDS as provided by most APS designs. Additionally, it allows
our Distributed 11-bit Analog-to-Digital Converter or D/AD™, in-pixel binning mode for increased sensitivity for
low-light / night-time video capture and enables High Dynamic Range (HDR) capture by the camera.
Timing Engine
The onboard timing engine provides all necessary signals to drive the imaging core, on board DAC’s (ramp &
references), and video processing. This simplifies the user interface, and reduces the I/O count required to operate
the device. The user may also alter the default timing edges via programmable registers & serial interface (detailed
in Device Operation & Timing, and programming section) for special applications requiring alternative operational
characteristics.
PDS0038 Rev G.doc
©2008 Panavision Imaging, LLC All rights reserved.
Subject to change without notice.
Page 5 of 30
5 Page 
DLIS-2k Advanced Information
PIXCLK_OUT
DIG_OUT Pix1 Pix2 Pix3 Pix4 Pix5 Pix6 Pix7 Pix8 Pix9 Pix10 Pix11 Pix12
Average_DIG_OUT
APix4 APix5 APix6 APix7 APix8 APix9 APix10 APix11 APix12
Figure #8: 4 Pixel average
PIXCLK_OUT
DIG_OUT
Pix1 Pix2 Pix3 Pix4 Pix5 Pix6 Pix7 Pix8 Pix9 Pix10 Pix11 Pix12
Average_DIG_OUT
APix8 APix9 APix10 APix11 APix12
Figure #9: 8 Pixel average
Weighted Average 4 or 8 Pixel Mode
In this mode the device takes either 4 or 8 pixels and will create a value based on decreasing weights of the
previously read pixels as follows:
4 Pixel Mode
NewPixel = (Pixel[t-0] + Pixel[t-1] /2 + Pixel[t-2] /4 + Pixel[t-3] /8) /2
8 Pixel Mode
NewPixel = ( Pixel[t-0] + Pixel[t-1] /2 + Pixel[t-2] /4 + Pixel[t-3] /8 +
Pixel[t-4] /16 + Pixel[t-5] /32 + Pixel[t-6] /64 + Pixel[t-7] /128)/2
Digital Comparator
Digital comparator is compare of digital out from the pixels and digital out from ADT Processor and provides result
to “BOUT” pad. Here ADT output works as a threshold and user can select 4 or 8 pixel window for threshold value.
If digital output from Imager core is higher than threshold value than comparator flags “High” and if digital output
from Imager core is lower than threshold value than comparator flags “Low”. Use can select different Hysteresis
settings for noise immunity. Default Hysteresis setting is +/-32 but can be increased to +/- 256 counts.
The digital comparator compares the previous 4 or 8 pixel average to the current pixel value and compares if the
current pixel value is above or below the average plus or minus a hysteresis value.. If the current pixel is above the
PDS0038 Rev G.doc
©2008 Panavision Imaging, LLC All rights reserved.
Subject to change without notice.
Page 11 of 30
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet DLIS-2K.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DLIS-2K | Ultra-Configurable Monochrome Linear Sensor | Panavision Imaging |
| 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 |