Sony ICX228AK Datasheet

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).

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

Device Structure

• Interline CCD image sensor

• Image size: Diagonal 4.5mm (Type 1/4)

• Number of effective pixels: 768 (H) × 494 (V) approx. 380K pixels

• Total number of pixels: 811 (H) × 508 (V) approx. 410K pixels

• Chip size: 4.34mm (H) × 3.69mm (V)

• Unit cell size: 4.75µm (H) × 5.55µm (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

– 1 –

ICX228AK

E99913-PS

Diagonal 4.5mm (Type 1/4) CCD Image Sensor for NTSC Color Video Cameras

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.

14 pin DIP (Plastic)

A

A

A

Pin 1

V

3

40

2

12

Pin 8

H

Optical black position

(Top View)

AAA
AAA
AAA

– 2 –

ICX228AK

Block Diagram and Pin Configuration

(Top View)

5

6

7

9

10

11

13

Note)

Note) : Photo sensor

V

OUT

GND

Vφ

1

Vφ

2

Vφ

3

Vφ

4

V

DD

GND

φSUB

V

L

RG

Hφ

1

Hφ

2

Horizontal Register

2

3

4

NC

12

Cy

Cy

Mg

G

Cy

14

Mg

Ye

Ye

Mg

Ye

G

Cy

Cy

G

G

Cy

Mg

Ye

Ye

Mg

Mg

Ye

G

8

1

Vertical Register

G

Pin No.

1
2
3
4
5
6
7

Vφ4
Vφ3
Vφ2
Vφ1
NC
GND
VOUT

Vertical register transfer clock
Vertical register transfer clock
Vertical register transfer clock
Vertical register transfer clock

GND
Signal output

8

9
10
11
12
13
14

VDD
GND
φSUB
VL
RG
Hφ1
Hφ2

Supply voltage
GND
Substrate clock
Protective transistor bias
Reset gate clock
Horizontal register transfer clock
Horizontal register transfer clock

Symbol Description Pin No. Description

Pin Description

Symbol

Absolute Maximum Ratings

∗1

+21V (Max.) when clock width < 10µs, clock duty factor < 0.1%.

Against φSUB

Against GND

Against VL

Between input clock
pins

Storage temperature
Operating temperature

–32 to +12

–40 to +15
–40 to +0.3
–32 to +0.3
–0.3 to +17

–7 to +14

–7 to +4.2
–0.3 to +21
–0.3 to +12

to +12

–5 to +5
–12 to +12
–30 to +80
–10 to +60

V
V
V
V
V
V
V
V
V
V
V

V
°C
°C

VDD, VOUT, RG – φSUB
Vφ1, Vφ3 – φSUB
Vφ2, Vφ4, VL – φSUB
Hφ1, Hφ2, GND – φSUB
VDD, VOUT, RG – GND
Vφ1, Vφ2, Vφ3, Vφ4 – GND
Hφ1, Hφ2 – GND
Vφ1, Vφ3 – VL
Vφ2, Vφ4, Hφ1, Hφ2, GND – VL
Voltage difference between vertical clock input pins
Hφ1 – Hφ2
Hφ1, Hφ2 – Vφ4

Item Ratings Unit Remarks

∗1

– 3 –

ICX228AK

Bias Conditions

Clock Voltage Conditions

Item

Readout clock voltage

VVT
VVH1, VVH2
VVH3, VVH4
VVL1, VVL2,

VVL3, VVL4
VφV
VVH3 – VVH
VVH4 – VVH
VVHH
VVHL
VVLH
VVLL
VφH
VHL

VφRG
VRGLH – VRGLL

VRGL – VRGLm
VφSUB

11.64
–0.05

–0.2
–5.5

4.3
–0.25
–0.25

3.0
–0.05

3.0

16.14

12.0
0
0

–5.0

5.0

3.3
0

3.3

17.0

12.36

0.05

0.05
–4.5

5.55

0.1

0.1

0.3

0.3

0.3

0.3

3.6

0.05

3.6

0.4

0.5

17.86

V
V
V

V
V

V
V
V
V
V
V
V
V

V
V

V
V

1
2
2

2
2

2
2
2
2
2
2
3
3

4
4

4
5

VVH = (VVH1 + VVH2)/2

VVL = (VVL3 + VVL4)/2
VφV

= VVHn – VVLn (n = 1 to 4)

High-level coupling
High-level coupling
Low-level coupling
Low-level coupling

Input through 0.1µF
capacitance

Low-level coupling
Low-level coupling

Horizontal transfer
clock voltage

Reset gate clock
voltage

Substrate clock voltage

Vertical transfer clock
voltage

Symbol Min.

Typ. Max.

Unit

Waveform

diagram

Remarks

DC Characteristics

Item

Supply current

IDD 3.5 5.5 mA

Symbol Min. Typ. Max. Unit Remarks

Item

Supply voltage
Protective transistor bias
Substrate clock
Reset gate clock

VDD
VL

φSUB
φRG

11.64

12.0

∗1
∗2
∗2

12.36 V

Symbol Min. Typ. Max. Unit Remarks

∗1

VL setting is the VVL voltage of the vertical transfer clock waveform, or the same power supply as the VL
power supply for the V driver should be used.

∗2

Do not apply a DC bias to the substrate clock and reset gate clock pins, because a DC bias is generated
within the CCD.

– 4 –

ICX228AK

RφH

RφH

Hφ2

Hφ1

CφH1 CφH2

CφHH

Vφ1

CφV12

Vφ2

Vφ4

Vφ3

CφV34

CφV23CφV41

CφV13

CφV24

CφV1 CφV2

CφV4 CφV3

RGND

R4

R1

R3

R2

Vertical transfer clock equivalent circuit Horizontal transfer clock equivalent circuit

RφRG

RGφ

Cφ

RG

Reset gate clock equivalent circuit

Item

Capacitance between vertical transfer
clock and GND

CφV1, CφV3
CφV2, CφV4
CφV12, CφV34
CφV23, CφV41
CφV13
CφV24

CφH1, CφH2

CφHH

CφRG

CφSUB
R1, R2, R3, R4

RGND
RφH
RφRG

1200

560
220
120

82
75

22

36

5

180

82
15
12
51

pF
pF
pF
pF
pF
pF

pF

pF

pF

pF

Ω
Ω
Ω
Ω

Capacitance between vertical transfer
clocks

Capacitance between horizontal
transfer clock and GND

Capacitance between horizontal
transfer clocks

Capacitance between reset gate clock
and GND

Capacitance between substrate clock
and GND

Vertical transfer clock series resistor
Vertical transfer clock ground resistor
Horizontal transfer clock series resistor
Reset gate clock series resistor

Symbol Min. Typ. Max. Unit Remarks

Clock Equivalent Circuit Constant

– 5 –

ICX228AK

Drive Clock Waveform Conditions
(1) Readout clock waveform

(2) Vertical transfer clock waveform

II II

100%

90%

10%

0%

VVT

tr twh tf

φM

0V

φM

2

Vφ1 Vφ3

Vφ2 Vφ4

VVHH

VVH

VVHL

VVHH

VVHL

VVH1

VVL1

VVLH

VVLL

VVL

VVHH

VVH3

VVHL

VVH

VVHH

VVHL

VVL3

VVL

VVLL

VVLH

VVHH VVHH

VVH

VVHL

VVHL

VVH2

VVLH

VVL2

VVLL

VVL

VVHH VVHH

VVHL

VVH4

VVHL

VVH

VVL

VVLH

VVLL

VVL4

VVH = (VVH1 + VVH2)/2
VVL = (VVL3 + VVL4)/2
VφV = VVHn – VVLn (n = 1 to 4)

– 6 –

ICX228AK

tr twh tf

90%

10%

twl

Vφ

H

VHL

(3) Horizontal transfer clock waveform

Point A

twl

Vφ

RG

VRGH

VRGL

VRGLH

RG waveform

V

RGLL

Hφ1 waveform

twhtr tf

Vφ

H/2 [V]

VRGLm

(4) Reset gate clock waveform

VRGLH is the maximum value and VRGLL is the minimum value of the coupling waveform during the period from
Point A in the above diagram until the rising edge of RG. In addition, VRGL is the average value of VRGLH and
VRGLL.

VRGL = (VRGLH + VRGLL)/2

Assuming VRGH is the minimum value during the interval twh, then:

VφRG = VRGH – VRGL

Negative overshoot level during the falling edge of RG is VRGLm.

(5) Substrate clock waveform

90%

100%

10%

0%

V

SUB

tr twh tf

φM

φM

2

VφSUB

(A bias generated within the CCD)