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CCD525 Schematic ( PDF Datasheet ) - Fairchild Imaging

Teilenummer CCD525
Beschreibung Time Delay Integration Line Scan Sensor
Hersteller Fairchild Imaging
Logo Fairchild Imaging Logo 




Gesamt 6 Seiten
CCD525 Datasheet, Funktion
CCD525
Time Delay Integration
Line Scan Sensor
FEATURES
2048 Active Pixels Per Line
96 TDI Lines
13µm x13 µm Pixels
4 High Speed Output Ports
TDI Stages Selectable Between 96, 64, 48,
32, or 24
100 MHz Data Rate with 4 Outputs
Operating at 25 MHz
42 kHz Line Rate
2000X Antiblooming Protection
High Sensitivity
RoHS Compliant
GENERAL DESCRIPTION
The CCD525 is a Time Delay Integration (TDI)
sensor designed for a wide range of imaging
applications requiring high speed operation
combined with high sensitivity. The sensor is
capable of producing a total data rate of 100 MHz
(line rate > 42 kHz). The CCD has a total imaging
area of 2048 contiguous elements by 96 TDI rows.
The pixel dimensions are 13µm by 13µm. The
CCD overall dimensions are 27.940 mm x 3.302
mm. The sensor is mounted in a custom 40-pin
dual-in-line ceramic package.
The CCD525 imaging area is controlled by 3-
phase timing, and exposure control is performed
by selecting the number of active TDI stages.
Independent TDI control gates allow the following
number of TDI stages to be selected: 96, 64, 48,
32, or 24. The CCD525 features lateral anti-
blooming structures capable of 2000X over-
saturation protection.
The vertical (parallel) imaging register is
separated from the horizontal (serial) registers by
50 isolation rows. The isolation rows are also
controlled by 3-phase timing. The isolation rows
are covered with a light shield and are used to
transfer the charge from the imaging area to four
horizontal registers. The horizontal registers are
controlled by 4-phase timing. The design of the
horizontal registers has been optimized for high
charge transfer efficiency at low signal levels.
Each horizontal register is connected to a high
speed output amplifier. The output amplifier is a
three-stage source follower designed for high
conversion gain and extended bandwidth.
DEVICE ARCHITECTURE
The CCD525 operates in buried channel mode for
optimal performance. The imaging area consists
of 2048 contiguous pixels by 96 rows.
Photogenerated charge is integrated in this
region, then following the integration time, the
charge is transferred line by line to the adjacent
isolation rows for readout. The number of active
TDI rows is simply controlled by biasing the
appropriate control gates, VSWxx, low. Normal
vertical timing is employed across the array
irrespective of the selected number of active TDI
stages. The last gate in the vertical register is also
called the vertical transfer gate, ΦX. The charge is
transferred from the vertical register to the
horizontal registers when ΦX is clocked low. The
horizontal registers require 4-phase timing.
Charge is transferred, pixel by pixel, to the floating
diffusion sense node where it produces a voltage
change corresponding to the signal level. After the
signal is sampled, the reset gate is clocked high
to clear the signal, and restore the potential of the
sense node to the VRD reset drain voltage. There
are 3 prescan elements in each video line.
Fairchild Imaging • 1801 McCarthy Blvd. • Milpitas CA 95035 USA • (800) 325-6975 • Rev A • Page 1 of 6






CCD525 Datasheet, Funktion
PERFORMANCE SPECIFICATIONS
Description
Symbol Min
Typical
Max
Units Remarks
Vertical saturation charge
Qsat
150 200
-
Ke-
QE at 650 nm
QE 20 22 - %
Readout noise
Noise - 70 100 e-
Dynamic range
DR
2700
3000
-
Horizontal CTE
HCTE
0.99993 0.99995
-
Per transfer
Vertical CTE
VCTE
0.99995 0.99999
-
Per transfer
Photoresponse non-uniformity PRNU
Dark current
Idark
-
-
5 10 %
1 - nA/cm2
Dark signal charge density
Idark
-
10500
- Elec/pixel
/sec
Dark signal non-uniformity
DSNU
-
< 5%
-
Qsat
Output amplifier DC offset
- 10.3 -
Vdc
Output amplifier sensitivity
2.5 3 3.5 µV/e-
Antiblooming
Peak responsitivity
AB
Resp.
1500
-
2000
320
- X saturation
- V/µj/cm2 At 650 nm
Test conditions
1. Tests were performed at 25°C with horizontal clock frequency of 25 MHz per output and vertical clock
frequency of 42 kHz.
CCD HANDLING
CCD sensors are very sensitive to ESD
damage, therefore, strict static-safe handling
precautions must be carefully observed during
their use. Evidence of ESD damage resulting
from improper handling may invalidate the
warranty.
The work station and the operator must be
fully grounded when the CCD is removed
from its shorting bars or conductive foam.
The receiving socket and associated
circuitry must be adequately grounded.
The CCD must be stored with proper
shorting bars attached or mounted in
conductive foam
WARRANTY
Within twelve months of delivery to the end
customer, Fairchild Imaging will repair or
replace, at our option, any Fairchild Imaging
product if any part is found to be defective in
materials or workmanship. Contact Customer
Service for assignment of warranty return
number and shipping instructions to ensure
prompt repair or replacement.
CERTIFICATION
Fairchild Imaging certifies that its products are
fully inspected and tested at the factory prior
to shipment and that they conform to the
stated specifications.
This product is designed, manufactured, and
distributed utilizing the ISO 9000:2000
Business Management System.
Fairchild Imaging
1801 McCarthy Blvd., Milpitas, CA 95035
(800) 325-6975, (408) 433-2500
Internet: www.fairchildimaging.com
©2002 Fairchild Imaging reserves the right to
make changes to its products and/or their
specifications at any time without notice.
Fairchild Imaging • 1801 McCarthy Blvd. • Milpitas CA 95035 USA • (800) 325-6975 • Rev A • Page 6 of 6

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