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PDF ICX248AL Data sheet ( Hoja de datos )
| Número de pieza | ICX248AL | |
| Descripción | CCD Image Sensor with Square Pixel for Color Cameras | |
| Fabricantes | Sony | |
| Logotipo |  |
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ICX248AL
Diagonal 8mm (Type 1/2) CCD Image Sensor for EIA Black-and-White Video Cameras
Description
The ICX248AL is an interline CCD solid-state
image sensor suitable for EIA black-and-white video
cameras with a diagonal 8mm (Type 1/2) system.
Sensitivity, smear, D-range, S/N and other
characteristics from visible light area to near infrared
light area, have been greatly improved compared
with the ICX038DLA through the adoption of EXview
HAD CCDTM technology.
This chip features a field period readout system and
an electronic shutter with variable charge-storage time.
This chip is compatible with and can replace the
ICX038DLA.
20 pin DIP (Cer-DIP)
Pin 1
2
Features
V
• Sensitivity in the near infrared light area
(+12dB compared with the ICX038DLA, λ = 945nm)
• High sensitivity
(+9dB compared with the ICX038DLA, without IR cut filter)
3
H 40
Pin 11
• Low smear (–15dB compared with the ICX038DLA)
• High D range (+2dB compared with the ICX038DLA)
• High S/N
Optical black position
(Top View)
• High resolution and low dark current
• Excellent antiblooming characteristics
• Continuous variable-speed shutter
• Substrate bias:
Adjustment free (external adjustment also possible with 6 to 14V)
• Reset gate pulse: 5Vp-p adjustment free (drive also possible with 0 to 9V)
• Horizontal register: 5V drive
12
Device Structure
• Interline CCD image sensor
• Image size:
• Number of effective pixels:
• Total number of pixels:
• Chip size:
• Unit cell size:
• Optical black:
• Number of dummy bits:
• Substrate material:
Diagonal 8mm (Type 1/2)
768 (H) × 494 (V) approx. 380K pixels
811 (H) × 508 (V) approx. 410K pixels
7.95mm (H) × 6.45mm (V)
8.4µm (H) × 9.8µm (V)
Horizontal (H) direction: Front 3 pixels, rear 40 pixels
Vertical (V) direction: Front 12 pixels, rear 2 pixels
Horizontal 22
Vertical 1 (even fields only)
Silicon
TM
∗ EXview HAD CCD is a trademark of Sony Corporation EXview HAD CCD is a CCD that drastically improves light efficiency by including
near infrared light region as a basic structure of HAD (Hole-Accnmulation Diode) sensor.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E98728A99
1 page  
ICX248AL
Clock Voltage Conditions
Item Symbol
Readout clock voltage VVT
VVH1, VVH2
VVH3, VVH4
VVL1, VVL2,
VVL3, VVL4
VφV
Vertical transfer clock
voltage
| VVH1 – VVH2 |
VVH3 – VVH
VVH4 – VVH
VVHH
VVHL
VVLH
VVLL
Horizontal transfer
clock voltage
VφH
VHL
Reset gate clock
voltage∗1
VRGL
VφRG
VRGLH – VRGLL
Substrate clock voltage VφSUB
Min.
Typ.
Max.
Unit
Waveform
diagram
Remarks
14.55 15.0 15.45 V
1
–0.05 0 0.05 V
2 VVH = (VVH1 + VVH2)/2
–0.2 0 0.05 V
2
–9.6 –9.0 –8.5 V
2 VVL = (VVL3 + VVL4)/2
8.3 9.0 9.65 Vp-p
0.1 V
–0.25
0.1 V
–0.25
0.1 V
0.5 V
0.5 V
0.5 V
0.5 V
4.75 5.0 5.25 Vp-p
–0.05 0 0.05 V
∗1 V
4.5 5.0 5.5 Vp-p
0.8 V
23.0 24.0 25.0 Vp-p
2
2
2
2
2
2
2
2
3
3
4
4
4
5
VφV = VVHn – VVLn (n = 1 to 4)
High-level coupling
High-level coupling
Low-level coupling
Low-level coupling
Low-level coupling
∗1 Input the reset gate clock without applying a DC bias. In addition, the reset gate clock can also be driven
with the following specifications.
Item
Reset gate clock
voltage
Symbol
VRGL
VφRG
Min.
Typ.
Max.
Unit
Waveform
diagram
–0.2 0 0.2 V
4
8.5 9.0 9.5 Vp-p
4
Remarks
–5–
5 Page 
ICX248AL
Image Sensor Characteristics Measurement Method
Measurement conditions
1) In the following measurements, the device drive conditions are at the typical values of the bias and clock
voltage conditions. (When used with substrate bias external adjustment, set the substrate voltage to the
value indicated on the device and connect VDSUB pin to GND or leare it open.)
2) In the following measurements, spot blemishes are excluded and, unless otherwise specified, the optical
black (OB) level is used as the reference for the signal output, and the value measured at point [∗A] in the
drive circuit example is used.
Definition of standard imaging conditions
1) Standard imaging condition I:
Use a pattern box (luminance: 706cd/m2, color temperature of 3200K halogen source) as a subject.
(Pattern for evaluation is not applicable.) Use a testing standard lens and image at F8. The luminous
intensity to the sensor receiving surface at this point is defined as the standard sensitivity testing luminous
intensity. (IR cut filter is not applicable.)
2) Standard imaging condition II:
Image a light source (color temperature of 3200K) with a uniformity of brightness within 2% at all angles.
Use a testing standard lens and the luminous intensity is adjusted to the value indicated in each testing
item by the lens diaphragm. (IR cut filter is not applicable.)
1. Sensitivity
Set to standard imaging condition I. After selecting the electronic shutter mode with a shutter speed of
1/500s, measure the signal output (Vs) at the center of the screen and substitute the value into the
following formula.
S = Vs ×
500
60
[mV]
2. Saturation signal
Set to standard imaging condition II. After adjusting the luminous intensity to 10 times the intensity with the
average value of the signal output, 200mV, measure the minimum value of the signal output.
3. Smear
Set to standard imaging condition II. Adjust the luminous intensity to 500 times the intensity with the
average value of the signal output, 200mV. When the readout clock is stopped and the charge drain is
executed by the electronic shutter at the respective H blankings, measure the maximum value (VSm [mV])
of the signal output and substitute the value into the following formula.
Sm =
VSm
200
×
1
500
×
1
10
× 100 [%] (1/10V method conversion value)
4. Video signal shading
Set to standard imaging condition II. Adjust the luminous intensity so that the average value of the signal
output is 200mV. Then measure the maximum (Vmax [mV]) and minimum (Vmin [mV]) values of the signal
output and substitute the values into the following formula.
SH = (Vmax – Vmin)/200 × 100 [%]
– 11 –
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| PDF Descargar | [ Datasheet ICX248AL.PDF ] | |
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