/home/web/htmlds/RUSSIAN/html/kodak/228119
KAF-4202 SERIES
Eastman Kodak Company - Image Sensor Solutions
For the most current information regarding this product:
Phone: (585) 722-4385 Fax: (585) 722-4947 Web: www.kodak.com/go/imagers E-mail: imagers@kodak.com
KAF- 4202 Series
2032 (H) x 2044 (V) Pixel
Full-Frame CCD Image Sensor
Performance Specification
Eastman Kodak Company
Image Sensor Solutions
Rochester, New York 14650-2010
Revision 2
January 8, 2002
KAF-4202 SERIES
Eastman Kodak Company - Image Sensor Solutions
For the most current information regarding this product:
Phone: (585) 722-4385 Fax: (585) 722-4947 Web: www.kodak.com/go/imagers E-mail: imagers@kodak.com
2
Revision No. 2
TABLE OF CONTENTS
1.1 Features.................................................................................................................................. 3
1.2 Description............................................................................................................................. 3
1.3 Image Acquisition.................................................................................................................. 4
1.4 Charge Transport ................................................................................................................... 4
1.5 Output Structure......................................................................................................................4
1.6 Dark Reference Pixels ............................................................................................................4
1.7 Dummy Pixels .......................................................................................................................4
2.1 Package Drawing ................................................................................................................... 5
2.2 Pin Description ...................................................................................................................... 6
3.1 Absolute Maximum Ratings .................................................................................................. 7
3.2 DC Operating Conditions ...................................................................................................... 8
3.3 AC Operating Conditions ...................................................................................................... 9
3.4 AC Timing Conditions .......................................................................................................... 9
4.1 Performance Specifications ................................................................................................. 11
4.2 Typical Performance Characteristics Spectral Response..................................................... 12
4.3 Defect Classification............................................................................................................ 13
5.1 Quality Assurance and Reliability ....................................................................................... 14
5.2 Ordering Information........................................................................................................... 14
APPENDIX
Appendix 1 Revision History ................................................................................................... 15
FIGURES
Figure 1 Functional Block Diagram .......................................................................................... 3
Figure 2 Package Diagram......................................................................................................... 5
Figure 3 Package Pin Designations ........................................................................................... 6
Figure 4 Recommended Output Structure Load Diagram ..........................................................8
Figure 5 Timing Diagrams........................................................................................................10
Figure 6 Spectral Response ......................................................................................................12
KAF-4202 SERIES
Eastman Kodak Company - Image Sensor Solutions
For the most current information regarding this product:
Phone: (585) 722-4385 Fax: (585) 722-4947 Web: www.kodak.com/go/imagers E-mail: imagers@kodak.com
3
Revision No. 2
1.1 Features
= 4M Pixel Area CCD
= 2032H x 2044V (9
m) Pixels
= 18.29 mm H x 18.40 mm V Photosensitive
Area
= 2-Phase Register Clocking
= Fill Factor
= Low Dark Current ( <10pA/cm2 @ 25
C)
1.2 Description
The KAF-4202 is a high performance mono-
chrome area CCD (charge-coupled device) image
sensor with 2032 H x 2044V photo active pixels
designed for a wide range of image sensing
applications in the 0.4 nm to 1.0 nm wavelength
band. Typical applications include military,
scientific, and industrial imaging. A 74dB
dynamic range is possible operating at room
temperature.
The sensor is built with a true two-phase CCD
technology. This technology simplifies the support
circuits that drive the sensor and reduces the dark
current without compromising charge capacity.
The sensor is housed in a 26-pin, 1.36" wide DIL
ceramic package with 0.1" pin spacing.
The sensor consists of 2048 parallel (vertical)
CCD shift registers each 2048 elements long.
These registers act as both the photosensitive
elements and as the transport circuits that allow
the image to be sequentially read out of the sensor.
The elements of these registers are arranged into a
2032 x 2044 photosensitive array surrounded by a
light shielded dark reference of 16 columns and 4
rows. The parallel (vertical) CCD registers
transfer the image one line at a time into a single
2060 element (horizontal) CCD shift register. The
horizontal register transfers the charge to a single
output amplifier. The output amplifier is a two-
stage source follower that converts the photo-
generated charge to a voltage for each pixel.
KAF - 4202
Usable Active Image Area
2032(H) x 2044(V)
9 x 9
m pixels
V rd
R
V dd
V out
V ss
Sub
V og
=
V1
=
V2
Guard
2 Dark lines
2 Dark lines
2032 Active Pixels/Line
15 Dark
10 Inactive
H1
H2
2 Inactive
1 D ark
Figure 1 - Functional Block Diagram
KAF-4202 SERIES
Eastman Kodak Company - Image Sensor Solutions
For the most current information regarding this product:
Phone: (585) 722-4385 Fax: (585) 722-4947 Web: www.kodak.com/go/imagers E-mail: imagers@kodak.com
4
Revision No. 2
1.3 Image
Acquisition
An electronic representation of an image is formed
when incident photons falling on the sensor plane
create electron-hole pairs within the sensor. These
photon induced electrons are collected locally by
the formation of potential wells at each photogate
or pixel site. The number of electrons collected is
linearly dependent on light level and exposure
time and non-linearly dependent on wavelength.
When the pixel's capacity is reached, excess
electrons will leak into the adjacent pixels within
the same column. This is termed blooming.
During the integration period, the
V1 and
V2
register clocks are held at a constant (low) level.
See Figure 5. - Timing Diagrams.
1.4 Charge
Transport
Referring again to Figure 5 - Timing Diagrams,
the integrated charge from each photogate is
transported to the output using a two step process.
Each line (row) of charge is first transported from
the vertical CCD's to the horizontal CCD register
using the
V1 and
V2 register clocks. The
horizontal CCD is presented a new line on the
falling edge of
V2 while
H1 is held high. The
horizontal CCD's then transport each line, pixel by
pixel, to the output structure by alternately
clocking the
H1 and
H2 pins in a
complementary fashion. On each falling edge of
H2 a new charge packet is transferred onto a
floating diffusion and sensed by the output
amplifier
1.5 Output
Structure
Charge presented to the floating diffusion (FD) is
converted into a voltage and current amplified in
order to drive off-chip loads.
The resulting voltage change seen at the output is
linearly related to the amount of charge placed on
FD. Once the signal has been sampled by the
system electronics, the reset gate (
R) is clocked
to remove the signal and FD is reset to the
potential applied by Vrd. More signal at the
floating diffusion reduces the voltage seen at the
output pin. In order to activate the output
structure, an off-chip load must be added to the
Vout pin of the device - see Figure 4.
1.6
Dark Reference Pixels
Surrounding the peripheral of the device is a
border of light shielded pixels. This includes 15
leading and 1 trailing pixels on every line
excluding dummy pixels. There are also 2 full
dark lines at the start of every fra
PDF 
ZIP