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PDF ICX238AKE Data sheet ( Hoja de datos )

Número de pieza ICX238AKE
Descripción CCD Image Sensor with Square Pixel for Color Cameras
Fabricantes Sony 
Logotipo Sony Logotipo



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ICX238AKE
Diagonal 3mm (Type 1/6) CCD Image Sensor for NTSC Color Cameras
Description
The ICX238AKE is an interline CCD solid-state
image sensor suitable for NTSC small color
cameras. High resolution is achieved through the use
of Ye, Cy, Mg, and G complementary color mosaic
filters.
This chip features a field period readout system and
an electronic shutter with variable charge-storage time.
The package is a small 12-pin SON(LCC).
12 pin SON (Ceramic)
Features
High sensitivity and low smear
Horizontal register:
Reset gate:
3.3 to 5.0V drive
3.3 to 5.0V drive
Pin 1
No voltage adjustment
(Reset gate and substrate bias are not adjusted.)
Low dark current and excellent antiblooming characteristics
V
Continuous variable-speed shutter
Recommended range of exit pupil distance: –10mm to –
Ye, Cy, Mg, and G complementary color mosaic filters on chip
12-pin ceramic SON(LCC) package
3
Pin 7 H 40
Optical black position
Device Structure
(Top View)
Interline CCD image sensor
Image size:
Diagonal 3mm (Type 1/6)
Number of effective pixels: 768 (H) × 494 (V) approx. 380K pixels
Total number of pixels:
811 (H) × 508 (V) approx. 410K pixels
Chip size:
3.30mm (H) × 2.95mm (V)
Unit cell size:
3.200µm (H) × 3.725µm (V)
Optical black:
Horizontal (H) direction: Front 3 pixels, rear 40 pixels
Vertical (V) direction: Front 12 pixels, rear 2 pixels
Number of dummy bits:
Horizontal 22
Vertical 1 (even fields only)
Substrate material:
Silicon
2
12
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–
E98X19A99-PS

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ICX238AKE pdf
ICX238AKE
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

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ICX238AKE arduino
ICX238AKE
6. Uniformity between video signal channels
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 maximum (Crmax, Cbmax [mV]) and minimum (Crmin, Cbmin
[mV]) values of the R – Y and B – Y channels of the chroma signal and substitute the values into the
following formula.
Sr = | (Crmax – Crmin)/200 | × 100 [%]
Sb = | (Cbmax – Cbmin)/200 | × 100 [%]
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. 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)
9. 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 –

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