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Número de pieza | ICX228AK | |
Descripción | CCD Image Sensor with Square Pixel for Color Cameras | |
Fabricantes | Sony | |
Logotipo | ||
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No Preview Available ! ICX228AK
Diagonal 4.5mm (Type 1/4) CCD Image Sensor for NTSC Color Video Cameras
Description
The ICX228AK is an interline CCD solid-state image
sensor suitable for NTSC color video cameras.
Compared with the current product ICX208AK,
smear charactristics are improved drastically and
power consumption is reduced. High resolution is
achieved through the of Ye, Cy, Mg, and G
complementary color mosaic filters. High sensitivity
and high saturation signal are achieved by Super
HAD CCD technology.
This chip features a field period readout system and
an electronic shutter with variable charge-storage time.
The package is a 10mm-square 14-pin DIP (Plastic).
14 pin DIP (Plastic)
Features
• Low smear (–100dB Typ. at F5.6)
• Low power consumption
(–38% compared with ICX208AK)
• High sensitivity
(+3dB at F1.2 compared with ICX208AK)
• High saturation signal
• Supply voltage
12V
• Horizontal register: 3.3V drive
• Reset gate:
3.3V drive
• No voltage adjustment
(Reset gate and substrate bias are not adjusted.)
• High resolution,low dark current
• Excellent antiblooming characteristics
• Continuous variable-speed shutter
• Recommended range of exit pupil distance: –20 to –100mm
• Ye, Cy, Mg, and G complementary color mosaic filters on chip
Pin 1
2
V
12
3
Pin 8 H 40
Optical black position
(Top View)
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 4.5mm (Type 1/4)
768 (H) × 494 (V) approx. 380K pixels
811 (H) × 508 (V) approx. 410K pixels
4.34mm (H) × 3.69mm (V)
4.75µm (H) × 5.55µm (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
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–
E99913-PS
1 page ICX228AK
Drive Clock Waveform Conditions
(1) Readout clock waveform
100%
90%
II II
10%
0%
tr
(2) Vertical transfer clock waveform
Vφ1
VVT
twh
tf
Vφ3
φM
φM
2
0V
VVH1
VVHH
VVH
VVHH
VVHL
VVHL
VVHL
VVHH
VVHH
VVH3
VVHL
VVH
VVL1
VVLH
VVLL
VVL
Vφ2
VVHH
VVH2 VVHL
VVHH
VVH
VVHL
VVL3
VVL
Vφ4
VVH
VVHH
VVLH
VVLL
VVHH
VVHL
VVHL
VVH4
VVL2VVLH
VVLL
VVL
VVH = (VVH1 + VVH2)/2
VVL = (VVL3 + VVL4)/2
VφV = VVHn – VVLn (n = 1 to 4)
VVLH
VVLL
VVL4
–5–
VVL
5 Page ICX228AK
7. Dark signal
Measure the average value of the Y signal output (Ydt [mV]) with the device ambient temperature 60°C and
the device in the light-obstructed state, using the horizontal idle transfer level as a reference.
8. Dark signal shading
After measuring 7, measure the maximum (Ydmax [mV]) and minimum (Ydmin [mV]) values of the Y signal
output and substitute the values into the following formula.
∆Ydt = Ydmax – Ydmin [mV]
9. Flicker
1) Fy
Set to standard imaging condition II. Adjust the luminous intensity so that the average value of the Y signal
output is 200mV, and then measure the difference in the signal level between fields (∆Yf [mV]). Then
substitute the value into the following formula.
Fy = (∆Yf/200) × 100 [%]
2) Fcr, Fcb
Set to standard imaging condition II. Adjust the luminous intensity so that the average value of the Y signal
output is 200mV, insert an R or B filter, and then measure both the difference in the signal level between
fields of the chroma signal (∆Cr, ∆Cb) as well as the average value of the chroma signal output (CAr, CAb).
Substitute the values into the following formula.
Fci = (∆Ci/CAi) × 100 [%] (i = r, b)
10. Line crawls
Set to standard imaging condition II. Adjust the luminous intensity so that the average value of the Y signal
output is 200mV, and then insert a white subject and R, G, and B filters and measure the difference
between Y signal lines for the same field (∆Ylw, ∆Ylr, ∆Ylg, ∆Ylb [mV]). Substitute the values into the
following formula.
Lci = (∆Yli/200) × 100 [%] (i = w, r, g, b)
11. Lag
Adjust the Y signal output value generated by strobe light to 200mV. After setting the strobe light so that it
strobes with the following timing, measure the residual signal (Ylag). Substitute the value into the following
formula.
Lag = (Ylag/200) × 100 [%]
FLD
V1
Strobe light
timing
Output
Light
Y signal output 200mV Ylag (lag)
– 11 –
11 Page |
Páginas | Total 18 Páginas | |
PDF Descargar | [ Datasheet ICX228AK.PDF ] |
Número de pieza | Descripción | Fabricantes |
ICX228AK | CCD Image Sensor with Square Pixel for Color Cameras | Sony |
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