Ver1.0
1
A1 PROs
A1 PROs
Ai325
1/3 inch CCD Image Sensor for EIA B/W Camera
Pin Configuration
Description
The Ai325 is a 250K pixels CCD area sensor
for EIA 1/3inch video cameras. Buried
photodiode and micro lens are adopted for low
noise, low smear and high sensitivity. This chip
also features a strong anti-blooming and
electronic shutter with variable charge-storage
time.
Feature
V¥
4õ
1
16
H¥
2õ
V¥
3õ
2
15
H¥
1õ
V¥
2õ
3
14 NC
V¥
1õ
4
13 VRG
GND 5
12 VPP
VGG 6
11 VSUB
VSS 7
10 GND
VOUT 8
-. Micro Lens for high sensitivity
-. Image-lag is negligible and excellent blooming
suppression is performed.
-. TTL level(5V) operation on HCCD & RG electrodes.
-. 16 pin plastic-DIP.
-. Variable electronic shutter of 1/60 to 1/100,000 sec.
-. High sensitivity and low smear.
Structure
9 VDD
16 Pin Plastic - DIP
( Top View )
Optical black position( Top View )
-. Architecture : IT - CCD
-. Optical size : 1/3 inch format
-. Chip size : 6.0(H) x 5.2(V) § ±
-. Number of effective pixels :
510 (H) x 492 (V) about 250K pixels
-. Number of total pixels :
537 (H) x 505 (V) about 270K pixels
-. Pixel size : 9.65 (H) x 7.5 (V) § 2-. Optical black area
Horizontal direction : Front 2 pixels Rear 25 pixels
Vertical direction : Front 12 pixels Rear 1 pixels
-. Number of dummy bits
Horizontal : 16
Vertical : 1 ( Even field only )
1
Pin1
Unit : Pixels
1
V
12
2
H
Pin9
25
Ai325
Block Diagram
VOUT
8
VSS
VGG
GND
V¥
7
6
5
4
õ1
V¥
V¥
õ2
3
õ3
2
V¥
õ4
1
VCCD
PD
HCCD
9
VDD
10
11
GND VSUB
12
13
14
15
16
VP
VRG
NC
H¥ õ1
H¥ õ2
Pin Description
No. Symbol
Description
No. Symbol
Description
1
V¥ õ4
Vertical register transfer clock 4
9
VDD
Output amplifier drain bias
2
V¥ õ3
Vertical register transfer clock 3
10
GND
Ground
3
V¥ õ2
Vertical register transfer clock 2
11
VSUB
Substrate(Overflow drain)bias
4
V¥ õ1
Vertical register transfer clock 1
12
VP
Protection bias
5
GND
Ground
13
VRG
Reset gate clock
6
VGG
Output amplifier gate bias
14
NC
No connection
7
VSS
Output amplifier source bias
15
H¥
1
õ
Horizontal register transfer clock 1
8
VOUT
CCD Output signal
16
H¥
2
õ
Horizontal register transfer clock 2
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
VSUB - GND
-0.3 to +55
V
VDD, VOUT, VSS - GND
VDD, VOUT, VSS - VSUB
V¥ õ1, 2, 3, 4 - GND
V¥ õ1, 2, 3, 4 - VP
V¥ õ1, 2, 3, 4 - VSUB
-0.3 to +18
-55 to +10
-10 to +20
-0.3 to +27
-55 to +10
V
V
V
V
V
H¥ õ1 , H¥ õ2 - GND
-10 to +15
V
V¥ õx - V¥
-10 to +15
V
H¥ õ1 , H¥ õ2 - V¥ õ4
-17 to +17
V
RG, VGG - GND
RG, VGG - VSUB
-10 to +15
-55 to +10
V
V
Vp - VSUB
-65 to 0.3
V
Storage temperature
TSTG
-30 to 80
¡ É
Operation temperature
TOPR
-10 to 60
¡ É
Substrate voltage
Supply voltage
Vertical clock input voltage
Horizontal clock input voltage
Between vertical clock input pins
Between horizontal clock
and vertical clock input pins
Output pin voltage
y
õ
¥ Õ
¥ Õ
Protective circuit voltage
2
Ai325
Bias Condition
Parameter
Symbol Min.
Output amplifier drain voltage
Vdd
14.5
Output amplifier gate voltage
Vgg
1.5
Output amplifier source voltage
Vss
Substrate voltage adjustment range
Vsub
Fluctuation range after substrate voltage adjustment
Reset gate clock voltage adjustment range
Max.
15.0
15.5
Unit Remark
V
2.0
2.5
V
Ground through
680¥ ØResistor, ¡ ¾
5%
5
15
V
¡ â
Vsub
-1
1
V
Vrgl
0
4
V
Fluctuation range after reset gate voltage adjustment ¡ â
Vrgl
Protection bias
Typ.
-3
3
%
Set to low level
of vertical transfer clock
Vp
DC Characteristics
Parameter
Symbol
Min.
Typ.
Max.
Unit
IDD
-
3
-
§ Ì
Output amplifier drain current
Driving Condition
Parameter
Symbol
V
Min.
Typ.
Max.
Unit
Vertical clock high voltage
¥ Õ H1,
VH3
14.5
15.0
15.5
V
Vertical clock middle voltage
¥ Õ M1, 2, 3, 4
V
-0.2
0.0
0.2
V
Vertical clock low voltage
¥ Õ L1, 2, 3, 4
V
-9.0
-8.5
-8.0
V
H
4.5
5.0
5.5
V
Horizontal clock high voltage
¥ Õ H1, 2
Horizontal clock low voltage
¥ Õ L1, 2
H
-0.5
0.0
0.5
V
RG clock voltage difference
¥ Õ
RGHL
4.7
5.0
5.3
V
Substrate clock voltage
¥ Õ SUB
V
23
24
25
V
3
Ai325
Electro-optical Performance
Unit
Measurement
Method
§ Æ
/Lux
1
§ Æ
2
0.015
%
3
BL
1
%
4
Video signal shading
OSNU
15
%
5
Dark signal level
VDARK
2
§ Æ
6
Temp=60¡ É
Dark signal shading
DSNU
2
§ Æ
7
Temp=60¡ É
Item
Symbol
Min.
Typ.
SENS
55
70
Saturation signal
VSAT
800
Smear
SMR
Blooming
Sensitivity
4
Max.
Remark
Temp=60¡ É
Ai325
Measurement Method
1. Sensitivity
¨ çSet to SILC ( Standard Illumination Conditions* )
¨ èMeasure the average value of signal output ( Vout )
¨ éCalculate the efficiency of Vout to light intensity
2. Vsat
¨ çAdjust light intensity to 200 times of SILC
¨ èMeasure the average value of signal output
3. Smear
¨
¨
¨
¨
çAdjust light intensity to 200 times of SILC & readout clock
èMeasure the signal output at horizontal optical black ( Vhopb )
éMeasure the signal output at vertical blanking dummy ( Vvbd )
êSmear = { ( Vvbd - Vhopb ) / Vsat } ¡ ¿100 ( % )
4. Blooming
¨
¨
¨
¨
çAdjust light intensity to 200 times of SILC & readout clock
èMeasure the signal output at horizontal optical black ( Vhopb )
éMeasure the signal output at blooming dummy area ( Vbd )
êBlooming = { ( Vbd - Vhopb ) / Vsat } ¡ ¿100 ( % )
5. OSNU
¨
¨
¨
¨
çSet to SILC
èMeasure the average value of signal output ( Vout )
éMeasure the maximum value and the minimum value of signal output
êOSNU = ( Vmax - Vmin ) / Vout 100 (%)
6. Vdark
¨ çMeasure the average value of signal output at dark condition
7. DSNU
¨ çMeasure the voltage difference between minimum and maximum of dark signal
* Standard Illumination Conditions
¨
¨
¨
¨
¨
çMeasure the average value of output of linear region
èAt this time, measure the light intensity of illumination at CCD face plate
éDefine SILC with above
êLight source: Tungsten lamp(3100K)
ëUse a standard test lens at F8
5
Ai325
Notes on Handling
1) Static charge prevention
CCD image sensors are easily damaged by static discharge. Before handling be sure to take the
following protective measures.
a) Either handle bare handed or use non-chargeable gloves, clothes or material. Also use conductive
shoes.
b) When handling directly use an earth band.
c) Install a conductive mat on the floor or working table to prevent the generation of static electricity.
d) Ionized air is recommended for discharge when handling CCD image sensor.
e) For the shipment of mounted substrates, use boxes treated for the prevention of static charges.
2) Soldering
a) Make sure the package temperature does not exceed 80¡ Æ
C.
b) Solder dipping in a mounting furnace causes damage to the glass and other defects. Use a ground
30W soldering iron and solder each pin in less than 2 seconds. For repairs and remount, cool
sufficiently.
c) To dismount an image sensor, do not use a solder suction equipment. When using an electric
desoldering tool, use a thermal controller of the zero cross On/Off type and connect it to ground.
3) Dust and Dirt protection
a) Perform all assembly operations in a clean room (class 1000 or less).
b) Do not either touch glass plates by hand or have any object come in contact with glass surfaces.
Should dirt stick to a glass surface, blow it off with an air blower. (For dirt stuck through static electricity
ionized air is recommended.)
c) Clean with a cotton bud and ethyl alcohol if the grease stained. Be careful not to scratch the glass.
d) Keep in a case to protect from dust and dirt. To prevent dew condensation, preheat or precool when
moving to a room with great temperature differences.
4) Others
a) Do not expose to strong light (sun rays) for long periods.
b) Exposure to high temperature or humidity will affect the characteristics. Accordingly avoid storage or
usage in such conditions.
6
Ai325
Application Circuit
+15V
C2223
100
100
VDD
VOUT 8
9
VGG 6
CCD
output
3.9K
11 VSUB
GND 5
VSS 7
12 VP
14 NC
V¥Õ3 2
V¥Õ2 3
180K
680
1M
10/6.3V
0.1
27K
KDS226
0.1
VR
10K
3.3K
V-DRIVER
12
15
14
10
V¥Õ4
V¥Õ3
V¥Õ2
V¥Õ1
VSUB
Ai1001S
11
7
10 GND
-9V
15 H¥Õ1
V¥Õ4 1
4
16 H¥Õ2
Ai325 V¥Õ1
13 RG
33
33
RG
H¥Õ1
H¥Õ2
33
+
Ai325
Package Dimension (16 Pin Plastic-DIP)
B
UNIT = mm
6.1
R0
DE .5
PT
H=
2. The rotation angle of the effective
image area relative to H and V is
¡ ¾
1.5¡ £
V
0.32¡¾0.10
R0
.3
5.7
2.5
0.4
1.The center of the effective image
area relative to “ B ” and “ B’ ”is
(H, V) = (6.1, 5.7)¡ ¾
0.15mm.
H
: GLASS LID
B
3¡ £
11.40¡ ¾
0.1
9.70¡ ¾
0.10
1.57
3.08¡¾0.3
8.9¡ ¾0.10
1.40¡¾0.3
12.20¡ ¾0.1
5¡ £
5¡ £
3.55¡¾ 0.25
1.27¡¾0.10
0.64
10.73¡ ¾
0.05
0.30¡ ¾
0.10
0.25
0.46¡ ¾
0.10
1.27¡ ¾0.05
1.27X7=8.89¡ ¾0.10
11.43¡ ¾
0.3
11.80¡ ¾0.05
8
R0.3