Sharp LZ23H3V1 Datasheet

LZ23H3V1

DESCRIPTION

The LZ23H3V1 is a 1/3-type (6.0 mm) solid-state image sensor that consists of PN photo-diodes and CCDs (charge-coupled devices). With approximately 1 090 000 pixels (1 217 horizontal x 893 vertical), the sensor provides a stable high­resolution color image.

FEATURES

• Optical size : Number of effective pixels – Approx. 1 000 k; 6.6 mm – Approx. 790 k; 5.9 mm (compatible with XGA
format)
• Interline scan format
• Square pixel
• Number of effective pixels : 1 174 (H) x 884 (V)
• Number of optical black pixels – Horizontal : 3 front and 40 rear – Vertical : 7 front and 2 rear
• Number of dummy bits – Horizontal : 22 – Vertical : 2
• Pixel pitch : 4.6 µm (H) x 4.6 µm (V)
• R, G, and B primary color mosaic filters
• Supports monitoring mode
• Low fixed-pattern noise and lag
• No burn-in and no image distortion
• Blooming suppression structure
• Built-in output amplifier
• Built-in overflow drain voltage circuit and reset gate voltage circuit
• Variable electronic shutter
• Package : 16-pin shrink-pitch WDIP [Ceramic] (WDIP016-N-0500C) Row space : 12.70 mm

PIN CONNECTIONS

PRECAUTIONS

• The exit pupil position of lens should be 15 to 50 mm from the top surface of the CCD.
• Refer to "PRECAUTIONS FOR CCD AREA SENSORS" for details.
(1 024)
1 000 k pixels
1 156
790 k pixels
866
(768)
(5.9 mm) 6.6 mm
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
1
LZ23H3V1
1/3-type Interline Color CCD Area
Sensor with 1 090 k Pixels
1OD
2GND
3OFD
4PW
5Ø
RS
6NC
7Ø
H1
8
16
15
14
13
12
11
10
9Ø
H2
OS
GND
Ø
V1A
ØV1B
ØV2
ØV3A
ØV3B
ØV4
16-PIN SHRINK-PITCH WDIP
TOP VIEW
(WDIP016-N-0500C)
LZ23H3V1
2

PIN DESCRIPTION

SYMBOL PIN NAME
OD Output transistor drain OS Output signals ØRS Reset transistor clock Ø
V1A, ØV1B, ØV2, ØV3A, ØV3B, ØV4 Vertical shift register clock
ØH1, ØH2 Horizontal shift register clock
PW P-well GND Ground NC No connection
Overflow drainOFD

ABSOLUTE MAXIMUM RATINGS (TA = +25 ˚C)

PARAMETER SYMBOL RATING UNIT
Output transistor drain voltage V
OD 0 to +18 V
Reset gate clock voltage V
ØRS Internal output V
Vertical shift register clock voltage V
ØV VPW to +18 V
Horizontal shift register clock voltage VØH –0.3 to +12 V Voltage difference between P-well and vertical clock V
PW-VØV –29 to 0 V
Storage temperature T
STG –40 to +85 ˚C
Ambient operating temperature T
OPR –20 to +70 ˚C
2
NOTE
NOTES :
1. Do not connect to DC voltage directly. When OFD is connected to GND, connect VOD to GND. Overflow drain clock is applied below 27 Vp-p.
2. Do not connect to DC voltage directly. When Ø
RS is connected to GND, connect VOD to GND. Reset gate clock is
applied below 8 Vp-p.
3. When clock width is below 10 µs, and clock duty factor is below 0.1%, voltage difference between vertical clocks will be below 28 V.
1VInternal outputVOFDOverflow drain voltage
3V0 to +15V
ØV-VØVVoltage difference between vertical clocks
LZ23H3V1
3

RECOMMENDED OPERATING CONDITIONS

PARAMETER SYMBOL MIN. TYP. MAX. UNIT NOTE
Ambient operating temperature T
OPR 25.0 ˚C
Output transistor drain voltage V
OD 14.55 15.0 15.45 V
NOTES :
1. Use the circuit parameter indicated in "SYSTEM CONFIGURATION EXAMPLE", and do not connect to DC voltage directly.
2. V
PW is set below VØVL that is low level of vertical shift register clock, or is used with the same power supply that is connected
to V
L of V driver IC.
3. Operation frequency is 14.32 MHz.
4. Operation frequency is 18.00 MHz.
* To apply power, first connect GND and then turn on V
OD. After turning on VOD, turn on PW first and then turn on other powers
and pulses. Do not connect the device to or disconnect it from the plug socket while power is being applied.
1V26.524.5VØOFD
Overflow drain clock
P-well voltage VPW –10.0 VØVL V2
Ground GND 0.0 V
V–8.5–9.0–9.5
V
ØV1AL, VØV1BL, VØV2L
VØV3AL, VØV3BL, VØV4L Vertical shift register clock
LOW level
INTERMEDIATE level
HIGH level
V
ØV1AI, VØV1BI, VØV2I
VØV3AI, VØV3BI, VØV4I
VØV1AH, VØV1BH VØV3AH, VØV3BH
14.55
0.0
15.0 15.45VV
LOW levelHorizontal shift
register clock
V
ØH1L, VØH2L –0.05 0.0 0.05 V
HIGH level V
ØH1H, VØH2H 4.5 5.0 5.5 V
1V5.55.04.5V
ØRSReset gate clock p-p level
Reset gate clock frequency f
ØRS
14.32 MHz 3
Horizontal shift register clock frequency f
ØH1, fØH2
14.32 MHz 3
Vertical shift register clock frequency
f
ØV1A, fØV1B, fØV2
fØV3A, fØV3B, fØV4
10.88 kHz 3 4kHz13.47
4MHz18.00
4MHz18.00
p-p level
LZ23H3V1
4

CHARACTERISTICS (Drive method : 1/30 s frame accumulation)

(T
A = +25 ˚C, Operating conditions : The typical values specified in "
RECOMMENDED OPERATING CONDITIONS
".
Color temperature of light source : 3 200 K, IR cut-off filter (CM-500, 1 mmt) is used.)
PARAMETER SYMBOL MIN. TYP. MAX. UNIT NOTE
Standard output voltage V
O 150 mV 2
Photo response non-uniformity PRNU 10 % 3
Saturation output voltage V
SAT
450 530 mV 4
Dark output voltage V
DARK 0.5 3.0 mV 1, 6
Dark signal non-uniformity DSNU 0.5 2.0 mV 1, 7 Sensitivity (green channel) R 105 150 mV 8 Smear ratio SMR –75 –65 dB 9
NOTES :
• Within the recommended operating conditions of VOD, V
OFD of the internal output satisfies with ABL larger than
500 times exposure of the standard exposure conditions, and V
SAT larger than 330 mV.
1. T
A = +60 ˚C
2. The average output voltage of G signal under uniform illumination. The standard exposure conditions are defined as when Vo is 150 mV.
3. The image area is divided into 10 x 10 segments under the standard exposure conditions. Each segment's voltage is the average output voltage of all pixels within the segment. PRNU is defined by (Vmax – Vmin)/Vo, where Vmax and Vmin are the maximum and minimum values of each segment's voltage respectively.
4. The image area is divided into 10 x 10 segments. Each segment's voltage is the average output voltage of all pixels within the segment. V
SAT is the minimum
segment's voltage under 10 times exposure of the standard exposure conditions. The operation of OFDC is high. (for still image capturing)
5. The image area is divided into 10 x 10 segments. Each segment's voltage is the average output voltage of all pixels within the segment. V
SAT is the minimum
segment's voltage under 10 times exposure of the standard exposure conditions. The operation of OFDC is low.
6. The average output voltage under non-exposure conditions.
7. The image area is divided into 10 x 10 segments under non-exposure conditions. DSNU is defined by (Vdmax – Vdmin), where Vdmax and Vdmin are the maximum and minimum values of each segment's voltage respectively.
8. The average output voltage of G signal when a 1 000 lux light source with a 90% reflector is imaged by a lens of F4, f50 mm.
9. The sensor is exposed only in the central area of V/10 square with a lens at F4, where V is the vertical image size. SMR is defined by the ratio of the output voltage detected during the vertical blanking period to the maximum output voltage in the V/10 square.
10. The sensor is exposed at the exposure level corresponding to the standard conditions. AI is defined by the ratio of the output voltage measured at the 1st field during the non-exposure period to the standard output voltage.
11. The sensor is exposed only in the central area of V/10 square, where V is the vertical image size. ABL is defined by the ratio of the exposure at the standard conditions to the exposure at a point where blooming is observed.
12. The sensor is exposed at the exposure level corresponding to the standard conditions. LCR is defined by (∆V
G/VO) x 100, where ∆VG is the difference
between the average output voltage of G signal at the 1st field, and that of G signal at the 2nd field.
5mV410330
11500ABLBlooming suppression ratio
10%1.0AIImage lag
Output transistor drain current I
OD 4.0 8.0 mA
12%3.0LCRLine crawling
LZ23H3V1
5

PIXEL STRUCTURE

1 pin
,
,
,
,
,
y
y
y
y
y
,
,
,
,
,
y
y
y
y
y
1 174 (H) x 884 (V)
OPTICAL BLACK
(2 PIXELS)
OPTICAL BLACK
(7 PIXELS)
OPTICAL BLACK
(3 PIXELS)
OPTICAL BLACK
(40 PIXELS)

COLOR FILTER ARRAY

GBGBG
RGRGR
GBGBG
RGRGR
GBGBG
RGRGR
BGBGB
GRGRG
BGBGB
GRGRG
BGBGB
GRGRG
BGBGB
GRGRG
BGBGB
GRGRG
BGBGB
GRGRG
GBGBG
RGRGR
GBGBG
RGRGR
GBGBG
RGRGR
(1, 884) (1 174, 884)
(1, 1) (1 174, 1)
Ø
V3B
ØV1A
ØV1B
ØV3A
ØV1A
ØV1A
ØV3A
ØV1B
ØV3B
ØV1B
ØV3A
ØV3B
Pin arrangement of the vertical readout clock
,,,,,,,
yyyyyyy
,,,,,,,
yyyyyyy
,,,,,,,
yyyyyyy
,,,,,,,
yyyyyyy
,,,,,,,
yyyyyyy
,,,,,,,
yyyyyyy
,,,,,,,
yyyyyyy
,,,,,,,
yyyyyyy
,,,,,,,
yyyyyyy
,,,,,,,
yyyyyyy
LZ23H3V1
6

TIMING CHART

NOTES :
1. Do not use these signals immediately after field accumulation mode is transferred to frame accumulation mode for still image capturing.
2. Do not use these signals immediately after frame accumulation mode is transferred to field accumulation mode for monitoring mode image.
* Apply at least an OFD shutter pulse to OFD in each field accumulation mode.
* Do not use the field signals immediately after frame accumulation mode is transferred to field
accumulation mode.
ØV3A
ØV2
ØV1B
ØV1A
VD
TIMING CHART EXAMPLE
OS
OFDC
Ø
OFD
ØV4
ØV3B
(at OFD shutter operation)
Field accumulation mode Field accumulation
Not for use 
(NOTE 1)
Not for use 
(NOTE 1)
Not for use 
(NOTE 2)
Frame accumulation mode
(2.3..882.883) (2.3..882.883) (2.4..882.884) (1.3..881.883) mode (2.3..882.883)
(Number of  vertical line)
Pulse diagram in more detail is shown in the figure q to t after next page.
Field accumulation mode Frame accumulation
mode at first
Frame accumulation mode Field accumulation
mode at first
Field accumulation  mode
qqwer e'tq
ØOFD
ØV3A
OFDC
OS
Ø
V4
ØV3B
ØV2
ØV1B
ØV1A
VD
HD
Shutter speed
1/1 000 s
q
VERTICAL TRANSFER TIMING FOR 14.3 MHz OPERATION ¿FIELD ACCUMULATION MODE¡
453 1 6 10
874 875 878 879 882 883 OB2 OB1 OB2 OB5 OB6 2 3 6 7 10 11 14 15 18 19
GB RG GB RG GB RG GB RG GB RGGB RG GB RG GB RG
LZ23H3V1
7
ØOFD
ØV3A
OFDC
Ø
V4
ØV3B
ØV2
ØV1B
ØV1A
VD
HD
(2nd FIELD)
e, e'
VERTICAL TRANSFER TIMING FOR 14.3 MHz OPERATION ¿FRAME ACCUMULATION MODE¡
453 454 459 463
OS e'
872 874 876 878 880 882 OB2 OB4 OB6 1 3 5 7 9 11 13 15 17 19
RG RG RG RG RG RG RG RG RG RGGB GB GB GB GB GB
884 OB2
GB
Not for useNot for use
OS
e
ØOFD
ØV3A
OFDC
OS
ØV4
ØV3B
ØV2
ØV1B
ØV1A
VD
HD
Shutter speed
1/1 000 s
w
VERTICAL TRANSFER TIMING FOR 14.3 MHz OPERATION ¿FRAME ACCUMULATION MODE AT FIRST¡
453 1 6 10
874 875 878 879 882 883 OB2 GB RG GB RG GB RG
Not for use
* Do not use the frame signals immediately after field accumulation is transferred to frame
accumulation mode.
* Do not use the frame signals immediately after field accumulation mode is transferred to frame
accumulation mode.
LZ23H3V1
8
ØOFD
ØV3A
OFDC
Ø
V4
ØV3B
ØV2
ØV1B
ØV1A
VD
HD
(1st FIELD)
r
VERTICAL TRANSFER TIMING FOR 14.3 MHz OPERATION ¿FRAME ACCUMULATION MODE¡
906900 1 6 10
OS
OB1 OB3 OB5 OB7 2 4 6 8 10 12 14
GB GB GB GB GB GB GB
Not for use
Charge swept transfer (658 stages)
ØOFD
ØV3A
OFDC
OS
Ø
V4
ØV3B
ØV2
ØV1B
ØV1A
VD
HD
Shutter speed
1/1 000 s
t
VERTICAL TRANSFER TIMING FOR 14.3 MHz OPERATION ¿FIELD ACCUMULATION MODE AT FIRST¡
906 1 6 10
873 875 877 879 881 883 OB1 RG RG RG RG RG RG
Not for use
* Do not use the frame signals immediately after field accumulation mode is transferred to frame
accumulation mode.
* Do not use the field signals immediately after frame accumulation mode is transferred to field
accumulation mode.
LZ23H3V1
9
ØV3A
ØV3B
ØV4
ØV2
ØV1B
ØV1A
HD
READOUT TIMING FOR 14.3 MHz OPERATION ¿FIELD ACCUMULATION MODE¡
11316,
64 96
40
56 104
88 384
436 508
408
132
48
80
392
536
588 660
30.5 µs (436 bits)
41.1 µs (588 bits)
91.9 µs (1 316 bits)
(72 bits)
(72 bits)
1316, 1
5.03 µs
400 560
552
544
5.03 µs
ØV3A
ØV3B
ØV4
ØV2
ØV1B
ØV1A
HD
READOUT TIMING FOR 14.3 MHz OPERATION ¿FRAME ACCUMULATION MODE AT FIRST¡
64 96
40
56 104
88 384
436 508
408
132
48
80
392
536
588 660
30.5 µs (436 bits)
41.1 µs (588 bits)
91.9 µs (1 316 bits)
(72 bits)
(72 bits)
1316, 1
5.03 µs
5.03 µs
400 560
1316, 1
552
544
LZ23H3V1
10
OS
Ø
RS
ØH2
ØH1
HD
OB (40)
ØOFD
ØV4
ØV2
HORIZONTAL TRANSFER TIMING FOR 14.3 MHz OPERATION
1316, 1 132
48
80
64
96
40
56
104
72
92
117.540
88
..
1174
ØV1A ØV1B
ØV3A ØV3B
PRE SCAN (22)
OB (3)
OUTPUT (1 174) 1
πππ
ØV4
ØV3A ØV3B
ØV2
ØV1B
ØV1A
HD
Ø
V4
ØV2
ØV1B
ØV1A
ØV3B
ØV3A
HD
READOUT TIMING FOR 14.3 MHz OPERATION ¿FRAME ACCUMULATION MODE¡
64
40
56
476 548
132
48
(72 bits)33.2 µs (476 bits)
80
96
88
104
1
1316, 1
5640104
88
132
48 80
64 96
80
96
88
104
48
64
40
56
1
5.03 µs
(72 bits)33.2 µs (476 bits)
5.03 µs
1316, 1
(1st FIELD)
(2nd FIELD)
476 548
LZ23H3V1
11
ØV1A ØV1B
ØV4
ØV3A ØV3B
ØV2
HD
CHARGE SWEPT TRANSFER TIMING FOR 14.3 MHz OPERATION
900H 901H 902H 905H 906H
• • • • •
1 132
1316
13062 14263850
13062 14263850
13128 203244
13128 203244
1234
• • • • • • •
658657656
1H 2H 3H 4H 5H 6H
ØV4
OFDC
OS
ØV3B
ØV3A
ØV2
ØV1B
ØV1A
VD
HD
Shutter speed
1/1 000 s
q
VERTICAL TRANSFER TIMING FOR 18.0 MHz OPERATION ¿FIELD ACCUMULATION MODE¡
ØOFD
442 449 1 6 10
858 859 862 863 866 867 870 871 874 875 878 879 882 883 OB2 2OB6OB5OB2OB1 3 6 7 10 11 GB RG GB RG GB RG GB RG GB RG GB RG GB RG GB RG GB RG GB RG
* Do not use the field signals immediately after frame accumulation mode is transferred to field
accumulation mode.
LZ23H3V1
12
ØV4
OFDC
OS
Ø
V3B
ØV3A
ØV2
ØV1B
ØV1A
VD
HD
Shutter speed
1/1 000 s
w
VERTICAL TRANSFER TIMING FOR 18.0 MHz OPERATION ¿FRAME ACCUMULATION MODE AT FIRST¡
ØOFD
442 449 1 6 10
858 859 862 863 866 867 870 871 874 875 878 879 882 883 OB2
GB RG GB RG GB RG GB RG GB RG GB RG GB RG
Not for use
* Do not use the field signals immediately after frame accumulation mode is transferred to field
accumulation mode.
* Do not use the field signals immediately after frame accumulation mode is transferred to field
accumulation mode.
ØV4
OFDC
OS
e
ØV3B
ØV3A
ØV2
ØV1B
ØV1A
VD
HD
e, e'
VERTICAL TRANSFER TIMING FOR 18.0 MHz OPERATION ¿FRAME ACCUMULATION MODE¡
ØOFD
449 450 455 459
856 858 860 862 864 866 868 870 872 874 876 878 880 882 884 OB2 1OB6OB4OB2 357911
GB GB GB GB GB GB GB GB GB GB GB GB GB GB GB RG RG RG RG RG RG
(2nd FIELD)
Not for use Not for use
OS e'
LZ23H3V1
13
ØV4
OFDC
OS
Ø
V3B
ØV3A
ØV2
ØV1B
ØV1A
VD
HD
r
VERTICAL TRANSFER TIMING FOR 18.0 MHz OPERATION ¿FRAME ACCUMULATION MODE¡
ØOFD
888 898 1 6
10
OB7OB5OB3OB1 2 4 6 8
GB GB GB GB
(1st FIELD)
Not for use
Charge swept transfer (668 stages)
ØV4
OFDC
OS
Ø
V3B
ØV3A
ØV2
ØV1B
ØV1A
VD
HD
Shutter speed
1/1 000 s
t
VERTICAL TRANSFER TIMING FOR 18.0 MHz OPERATION ¿FIELD ACCUMULATION MODE AT FIRST¡
ØOFD
898 1 6 10
857 859 861 863 865 867 869 871 873 875 877 879 881 883 OB1
RG RG RG RG RG RG RG RG RG RG RG RG RG RG
Not for use
* Do not use the frame signals immediately after field accumulation mode is transferred to frame
accumulation mode.
* Do not use the field signals immediately after frame accumulation mode is transferred to field
accumulation mode.
LZ23H3V1
14
ØV3A
ØV3B
ØV4
ØV2
ØV1B
ØV1A
HD
READOUT TIMING FOR 18.0 MHz OPERATION ¿FIELD ACCUMULATION MODE¡
1336, 1
50
70
40 100
110
480 660
725 815
680500
670470
535 625
1336, 1
90
132
60
490 690
120
29.7 µs (535 bits)
5.00 µs
(90 bits)
5.00 µs
(90 bits)
41.1 µs (588 bits)
74.2 µs (1336 bits)
ØV3A
ØV3B
ØV4
ØV2
ØV1B
ØV1A
HD
READOUT TIMING FOR 18.0 MHz OPERATION ¿FRAME ACCUMULATION MODE AT FIRST¡
50
70
40 100
110
480 660
725 815
680500
670470
535 625
1336, 1
90
132
60
490 690
120
1336, 1
29.7 µs (535 bits)
5.00 µs
(90 bits)
5.00 µs
(90 bits)
41.1 µs (588 bits)
74.2 µs (1 336 bits)
LZ23H3V1
15
ØV4
ØV2
HD
(1st FIELD)
(2nd FIELD)
READOUT TIMING FOR 18.0 MHz OPERATION ¿FRAME ACCUMULATION MODE¡
ØV4
ØV2
HD
1
50
70
40
60
90
110
100
120
132
1
90
585 675
11070
40 100 10040
1206012060
11070
905050
132 1336, 1
32.5 µs (585 bits)
585 675
(90 bits)
32.5 µs (585 bits)
(90 bits)
1336, 1
ØV1A ØV1B
ØV3A ØV3B
5.00 µs
5.00 µs
Ø
V1A
ØV1B
ØV3A ØV3B
OS
Ø
RS
ØH2
ØH1
HD
OB (40)
OB (3)
PRE SCAN (22)
ØOFD
ØV4
ØV2
HORIZONTAL TRANSFER TIMING FOR 18.0 MHz OPERATION
132
50
90
70
40
60
120
80
105
137.540
..
1174
110
1336, 1
100
ØV1A ØV1B
ØV3A ØV3B
OUTPUT (1 174) 1
πππππππ
LZ23H3V1
16
ØV1A ØV1B
ØV4
ØV3A ØV3B
ØV2
HD
CHARGE SWEPT TRANSFER TIMING FOR 18.0 MHz OPERATION
888H 889H 890H 897H 898H 1H 2H 3H 4H 5H 6H
• • • • •
1 132 1336
13222 18345066
13222 18345066
133010 26 42 58
133010 26 42 58
1234
• • • • • • •
668667666
LZ23H3V1
17

SYSTEM CONFIGURATION EXAMPLE

+
OD
PW
OFD
Ø
V3B
ØV3A
ØV4
GND
NC Ø
H1
ØH2
OS GND Ø
V1A
ØV1B ØV2
ØRS
V3B V3A V1B V1A
VMa
VH
V4
V2
VL
VMb
POFD
NC
VH
ØH2
VH1BX
V3X
V2X
VH3BX
V4X
VOFDH
V1X
VH3AX
VH1AX
+3.3 V
OFDX
ØH1
ØRS
VL (VPW)
CCD
OUT
VOFDH VH3BX OFDX V
2X
V1X
V3X VDD GND
V
4X
VH3AX
VH1BX
VH1AX
+
+
1234567812
242322212019181713
11
14
10
15
9
16
2345678
1514
1
16131211109
LR36685 LZ23H3V1
(*1)(*1)
VOD
OFDC
270
pF
100 $
1 M$
1 M$
5.6 k$
18 k$
0. 47 µF
0. 01 µF
+
+
(*1) ØRS, OFD :
Use the circuit parameter indicated in
this circuit example, and do not connect
to DC voltage directly.
PACKAGES FOR CCD AND CMOS DEVICES
18

PACKAGE (Unit : mm)

0.04
1.66
±0.10
Package (Cerdip)
Glass Lid
CCD
Cross Section A-A'
1
8
14.00
±0.15
16
9
11.20
±0.10
(◊)
12.40
±0.15
6.20
±0.15
0.60
±0.60
7.00
±0.15
1.40
±0.60
θ
CCD
(◊ : Lid's size)
11.20
±0.10
(◊)
Center of effective imaging area and center of package
0.25
±0.10
12.70
±0.25
0.80
±0.05
(◊)
1.05
MIN.
0.46
TYP.
0.90
TYP.
2.63
TYP.
5.24
MAX.
3.42
±0.25
1.27
±0.25
3.90
±0.30
2.60
±0.20
P-1.78
TYP.
A'
A
Rotation error of die : ¬ = 1.5˚
MAX.
M0.25
16 WDIP (WDIP016-N-0500C)

PRECAUTIONS FOR CCD AREA SENSORS

1. Package Breakage
In order to prevent the package from being broken, observe the following instructions :
1) The CCD is a precise optical component and the package material is ceramic or plastic. Therefore, ø Take care not to drop the device when
mounting, handling, or transporting.
ø Avoid giving a shock to the package.
Especially when leads are fixed to the socket or the circuit board, small shock could break the package more easily than when the package isn’t fixed.
2) When applying force for mounting the device or any other purposes, fix the leads between a joint and a stand-off, so that no stress will be given to the jointed part of the lead. In addition, when applying force, do it at a point below the stand-off part.
(In the case of ceramic packages)
– The leads of the package are fixed with low
melting point glass, so stress added to a lead could cause a crack in the low melting point glass in the jointed part of the lead.
(In the case of plastic packages)
– The leads of the package are fixed with
package body (plastic), so stress added to a lead could cause a crack in the package body (plastic) in the jointed part of the lead.
3) When mounting the package on the housing, be sure that the package is not bent.
– If a bent package is forced into place
between a hard plate or the like, the pack­age may be broken.
4) If any damage or breakage occurs on the sur­face of the glass cap, its characteristics could deteriorate.
Therefore,
ø Do not hit the glass cap. ø Do not give a shock large enough to cause
distortion.
ø Do not scrub or scratch the glass surface.
– Even a soft cloth or applicator, if dry, could
cause dust to scratch the glass.
2. Electrostatic Damage
As compared with general MOS-LSI, CCD has lower ESD. Therefore, take the following anti-static measures when handling the CCD :
1) Always discharge static electricity by grounding the human body and the instrument to be used. To ground the human body, provide resistance of about 1 M$ between the human body and the ground to be on the safe side.
2) When directly handling the device with the fingers, hold the part without leads and do not touch any lead.
Glass cap
Package Lead
Fixed
Stand-off
Fixed
Lead
Stand-off
Low melting point glass
19
PRECAUTIONS FOR CCD AREA SENSORS
3) To avoid generating static electricity, a. do not scrub the glass surface with cloth or
plastic.
b. do not attach any tape or labels.
c. do not clean the glass surface with dust-
cleaning tape.
4) When storing or transporting the device, put it in a container of conductive material.
3. Dust and Contamination
Dust or contamination on the glass surface could deteriorate the output characteristics or cause a scar. In order to minimize dust or contamination on the glass surface, take the following precautions :
1) Handle the CCD in a clean environment such as a cleaned booth. (The cleanliness level should be, if possible, class 1 000 at least.)
2) Do not touch the glass surface with the fingers. If dust or contamination gets on the glass surface, the following cleaning method is recommended : ø Dust from static electricity should be blown
off with an ionized air blower. For anti­electrostatic measures, however, ground all the leads on the device before blowing off the dust.
ø The contamination on the glass surface
should be wiped off with a clean applicator soaked in Isopropyl alcohol. Wipe slowly and gently in one direction only.
– Frequently replace the applicator and do not
use the same applicator to clean more than one device.
◊ Note : In most cases, dust and contamination
are unavoidable, even before the device is first used. It is, therefore, recommended that the above procedures should be taken to wipe out dust and contamination before using the device.
4. Other
1) Soldering should be manually performed within 5 seconds at 350 °C maximum at soldering iron.
2) Avoid using or storing the CCD at high tem­perature or high humidity as it is a precise optical component. Do not give a mechanical shock to the CCD.
3) Do not expose the device to strong light. For the color device, long exposure to strong light will fade the color of the color filters.
20
PRECAUTIONS FOR CCD AREA SENSORS
Loading...