Sony ICX224AQ Datasheet

Diagonal 8mm (T ype 1/2) Frame Readout CCD Image Sensor with Square Pixel for Color Cameras

Description

The ICX224AQ is a diagonal 8mm (Type 1/2) interline CCD solid-state image sensor with a square pixel array and 2.02M effective pixels. Frame readout allows all pixels' signals to be output independently within approximately 1/7.5 second. Also, the adoption of high frame rate readout mode supports 30 frames per second which is four times the speed in frame readout mode. This chip features an electronic shutter with variable charge-storage time. Adoption of a design specially suited for frame readout ensures a saturation signal level equivalent to when using field readout. High resolution and high color reproductivity are achieved through the use of R, G, B primary color mosaic filters. Further, high sensitivity and low dark current are achieved through the adoption of Super HAD CCD technology.

This chip is suitable for applications such as electronic still cameras, PC input cameras, etc.

Features

• Supports frame readout

• High horizontal and vertical resolution

• Supports high frame rate readout mode: 30 frames/s

• Square pixel

• Horizontal drive frequency: 18MHz

• No voltage adjustments (reset gate and substrate bias are not adjusted.)

• R, G, B primary color mosaic filters on chip

• High color reproductivity, high sensitivity, low smear

• Continuous variable-speed shutter

• Low dark current, excellent anti-blooming characteristics

• 20-pin high-precision plastic package (top/bottom dual surface reference possible) Device Structure

• Interline CCD image sensor

• Image size: Diagonal 8mm (Type 1/2)

• Total number of pixels: 1688 (H) × 1248 (V) approx. 2.11M pixels

• Number of effective pixels: 1636 (H) × 1236 (V) approx. 2.02M pixels

• Number of active pixels: 1620 (H) × 1220 (V) approx. 1.98M pixels

• Chip size: 7.6mm (H) × 6.2mm (V)

• Unit cell size: 3.9µm (H) × 3.9µm (V)

• Optical black: Horizontal (H) direction: Front 4 pixels, rear 48 pixels

Vertical (V) direction: Front 10 pixels, rear 2 pixels

• Number of dummy bits: Horizontal 28

Vertical 1 (even fields only)

• Substrate material: Silicon

– 1 –

E98927B99

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.

ICX224AQ

20 pin DIP (Plastic)

∗

Super HAD CCD is a registered trademark of Sony Corporation. Super HAD CCD is a CCD that drastically improves sensitivity by introducing newly developed semiconductor technology by Sony Corporation into Sony's high-performance HAD (Hole-Accumulation Diode) sensor

A

Pin 1

V

4

48

2

10

Pin 11

H

Optical black position

(Top View)

AAA AAA AAA

– 2 –

ICX224AQ

Pin Description

Note) : Photo sensor

V

OUT

GND

NC

GND

Vφ

1B

Vφ

1A

Vφ

2

Vφ

3B

Vφ

3A

Vφ

4

V

DD

φRG

Hφ

2

Hφ

1

GND

φSUB

C

SUB

V

L

Hφ

1

Hφ

2

B G

Horizontal register

Vertical register

Note)

2

3

4

5

6

7

8

9

10

11

12

13

14 15

16

1

17

18

19

20

B G

G R

Block Diagram and Pin Configuration

(Top View)

∗1

DC bias is generated within the CCD, so that this pin should be grounded externally through a capacitance of 0.1µF.

Pin No. Symbol Description Pin No. Symbol Description

1 2 3 4 5 6 7 8 9

10

Vφ4 Vφ3A Vφ3B Vφ2 Vφ1A Vφ1B GND NC GND VOUT

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

GND Signal output

11 12 13 14 15 16 17 18 19 20

VDD φRG Hφ2 Hφ1 GND φSUB CSUB VL Hφ1 Hφ2

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

∗1

Protective transistor bias Horizontal register transfer clock Horizontal register transfer clock

– 3 –

ICX224AQ

Absolute Maximum Ratings

–40 to +12

–50 to +15 –50 to +0.3 –40 to +0.3

–25 to

–0.3 to +22

–10 to +18 –10 to +6.5 –0.3 to +28 –0.3 to +15

to +15

–6.5 to +6.5

–10 to +16

–30 to +80

–10 to +60

–10 to +75

V V V V V V V V V V V V

V °C °C °C

VDD, VOUT, φRG – φSUB Vφ1A, Vφ1B, Vφ3A, Vφ3B – φSUB Vφ2, Vφ4, VL – φSUB Hφ1, Hφ2, GND – φSUB CSUB – φSUB VDD, VOUT, φRG, CSUB – GND Vφ1A, Vφ1B, Vφ2, Vφ3A, Vφ3B, Vφ4 – GND Hφ1, Hφ2 – GND Vφ1A, Vφ1B, Vφ3A, Vφ3B – VL Vφ2, Vφ4, Hφ1, Hφ2, GND – VL Voltage difference between vertical clock input pins Hφ1 – Hφ2 Hφ1, Hφ2 – Vφ4

Item

Ratings

Unit

Remarks

∗2

+24V (Max.) when clock width < 10µs, clock duty factor < 0.1%. +16V (Max.) is guaranteed for turning on or off power supply.

∗2

Against φSUB

Against GND

Against VL

Between input clock pins

Storage temperature Guaranteed temperature of performance Operating temperature

– 4 –

ICX224AQ

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 VCR VφRG VRGLH – VRGLL VRGL – VRGLm VφSUB

14.55 –0.05

–0.2 –8.0

6.8 –0.25 –0.25

4.75

–0.05

0.5

3.0

21.5

15.0 0 0

–7.5

7.5

5.0 0

1.65

3.3

22.5

15.45

0.05

0.05 –7.0

8.05

0.1

1.4

1.3

1.4

0.8

5.25

0.05

5.25

0.4

0.5

23.5

V 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 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

Cross-point voltage

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

Remarks

Bias Conditions

Item Supply voltage Protective transistor bias Substrate clock Reset gate clock

VDD VL

φSUB φRG

14.55

15.0

∗1 ∗2 ∗2

15.45

V

Symbol Min. Typ. Max. Unit Remarks

DC Characteristics

Item

Supply current

IDD

4.0

7.0

10.0

mA

Symbol Min. Typ. Max. Unit Remarks

∗1

VL setting is the VVL voltage of the vertical transfer clock waveform, or the same voltage 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.

Waveform diagram

– 5 –

ICX224AQ

Clock Equivalent Circuit Constant

Item

Capacitance between vertical transfer clock and GND

CφV1A, CφV3A CφV1B, CφV3B CφV2, CφV4 CφV1A2, CφV3A4 CφV1B2, CφV3B4 CφV23A, CφV41A CφV23B, CφV41B CφV1A3A CφV1B3B C

φ

V1A3B, C

φ

V1B3A

CφV24 C

φ

V1A1B, C

φ

V3A3B

CφH1 CφH2

CφHH

CφRG

CφSUB R1A, R3A

R1B, R3B R2, R4 RGND RφH

390 1800 1800

220

470

120

330

120

270

330

180

120

30

8

820

75 100 120

30

5

pF pF pF pF pF pF pF pF pF pF pF pF pF pF

pF

Ω 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

Symbol Min. Typ. Max. Unit Remarks

RGND

CφV1B3B

R1B

CφV41B

Vφ1B

CφV4

CφV41A

CφV1B

CφV1B3A

CφV1A1B

CφV1A

CφV1B2

R1A

Vφ1A

CφV1A2

Vφ2

R2

CφV24

CφV1A3A

CφV23A

CφV23B

R3A

Vφ3A

CφV2 CφV3A

CφV3A3B

CφV1A3B

CφV3B

R3B

Vφ3B

CφV3A4

CφV3B4

Vφ4

R4

Vertical transfer clock equivalent circuit

Hφ1

RφH

CφH1 CφH2

RφH

CφHH

Hφ2

RφH

Hφ1 Hφ2

RφH

Horizontal transfer clock equivalent circuit

– 6 –

ICX224AQ

Drive Clock Waveform Conditions (1) Readout clock waveform

(2) Vertical transfer clock waveform

II

100%

90%

10%

0%

tr twh tf

φM

0V

φM

2

Vφ1A, Vφ1B Vφ3A, Vφ3B

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

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)

II

VVT

– 7 –

ICX224AQ

twh

tf

tr

90%

10%

V

HL

twl

Hφ1

two

Hφ2

VRGL

VRGLL

VRGLH

twl

V

RGH

RG waveform

VRGLm

tr twh tf

V

CR

(3) Horizontal transfer clock waveform

(4) Reset gate clock waveform

VφH

2

Point A

VφRG

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

VSUB

90%

100%

10%

0%

tr twh tf

φM

2

(A bias generated within the CCD)

VφSUB

Cross-point voltage for the Hφ1 rising side of the horizontal transfer clocks Hφ1 and Hφ2 waveforms is VCR. The overlap period for twh and twl of horizontal transfer clocks Hφ1 and Hφ2 is two.

– 8 –

ICX224AQ

Clock Switching Characteristics (Horizontal drive frequency: 18MHz)

Item

Readout clock

Vertical transfer clock

Reset gate clock

Substrate clock

VT Vφ1A, Vφ1B,

Vφ2, Vφ3A, Vφ3B, Vφ4

Hφ1 Hφ2 Hφ1 Hφ2

φRG

φSUB

1.36

14 14

7

1.7

1.56

19.5

5.56

10

3.6

14 14

19.5

5.56 37

0.5

8.5

0.01

0.01 4

14 14

0.5

15

0.5

8.5

0.01

0.01 5

250

14 14

0.5

µs

ns

µs

ns

µs

During readout

When using CXD1267AN

tf ≥ tr – 2ns

During drain charge

Symbol

twh

Min. Typ.

Max.

Horizontal transfer clock

Hφ1, Hφ2 12 19.5 ns

Item

Symbol

two

Unit

Remarks

Min. Typ.

Max.

Min. Typ.

Max.

Min. Typ.

Max.

Min. Typ.

Max.

twl tr tf

Unit Remarks

Horizontal

transfer clock

During imaging

During parallel-serial conversion

1.0

0.8

0.6

0.4

0.2

0

400 450 500 550 600 650 700

Wave Length [nm]

Relative Response

B

R

G

Spectral Sensitivity Characteristics (excludes lens characteristics and light source characteristics)