DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD3753
2088-BIT CCD LINEAR IMAGE SENSOR WITH PERIPHERAL CIRCUIT
The
µ
PD3753 is a 2088-bit high sensitivity CCD (Charge Coupled Device) linear image sensor which
changes optical images to electrical signal.
The
µ
PD3753 consists of 2088-bit photocell array and a line of 2088-bit CCD charge transferred register.
It contains a reset a feed-through level clamp circuit, a pulse generator, and a voltage amplifier to provide
high sensitivity and low noise. It also supports low power consumption with single 5 V power supply. The
µ
PD3753 can be driven by power supply and three input clocks owing to the built-in reset pulse generator
and a clamp pulse generator.
FEATURES
• Valid photocell
• Photocell's pitch
• High response sensitivity
• Low noise
• Peak response wavelength
• Resolution
• Power supply
• Drive clock level
• Scanning speed
• Built-in circuit
: 2088-bit
: 14
µ
m
: Providing a response equal with the existing equivalent NEC
product (
µ
PD3743) to the light from a daylight fluorescent lamp
: Providing about two thirds register imbalance of the existing equivalent
NEC product (
µ
PD3743)
: 550 nm (green)
: 8 dot/mm across the shorter side of a B4-size (257
×
364 mm) sheet
: +5 V
: CMOS output under +5 V operation
: 1.0 ms/line
: Reset feed-through level clamp circuit, reset pulse generator, clamp pulse
generator
ORDERING INFORMATION
Part Number
Package
CCD LINEAR IMAGE SENSOR 22 PIN PLASTIC DIP (400 mil)
Quality Grade
Standard
µ
PD3753CY
Please refer to "Quality grade on NEC Semiconductor Devices" (Document number IEI-1209) published by
NEC Corporation to know the specification of quality grade on the devices and its recommended applications.
The information in this document is subject to change without notice.
Document No. IC-3429
(O. D. No. IC-9002)
Date Published August 1994 P
Printed in Japan
©
1994
µ
PD3753
BLOCK DIAGRAM
V
OD
3
Reset pulse/
clamp pulse
generator
•Voltage amplifier
•Reset feed-through
level clamp circuit
Optical black (OB) 18 bits, invalid 2 bits,
valid photocell 2088 bits, invalid 2 bits
9
CCD register
14
φ
1
20
AGND
13
DGND
15
φ
2
V
OUT
19
φ
TG
2
µ
PD3753
PIN CONFIGURATION (Top View)
CCD LINEAR IMAGE SENSOR 22 PIN PLASTIC DIP (400 mil)
No connection
1
NC
NC
22
No connection
No connection
2
NC
NC
21
No connection
Output unit drain voltage
3
V
OD
AGND
20
Analog GND
No connection
4
NC
V
OUT
19
Output
No connection
5
NC
NC
18
No connection
No connection
6
NC
NC
17
No connection
No connection
7
NC
NC
16
No connection
No connection
8
NC
φ
2
φ
1
DGND
15
Shift register clock 2
Transfer gate clock
9
φ
TG
NC
14
Shift register clock 1
No connection
10
13
Digital GND
No connection
11
NC
NC
12
No connection
PHOTOCELL STRUCTURE DIAGRAM
12
µ
m
2
µ
m
14
µ
m
Channel stopper
Aluminum
electrode
3
µ
PD3753
ABSOLUTE MAXIMUM RATINGS (T
a
= +25
°C)
Parameter
Output unit drain voltage
Shift register clock voltage
Transfer gate signal voltage
Operating ambient temperature
Storage temperature
Symbol
V
OD
V
φ
1,
φ
2
V
φ
TG
T
opt
T
stg
Ratings
–0.3 to +8
–0.3 to +8
–0.3 to +8
–25 to +60
–40 to +70
Unit
V
V
V
°C
°C
RECOMMENDED OPERATING CONDITIONS (T
a
= –25 to + 60
°C)
Parameter
Output unit drain voltage
Shift register clock
φ
1,
φ
2 signal high level
Shift register clock
φ
1,
φ
2 signal low level
Transfer gate signal high level
Transfer gate signal low level
Data rate
Symbol
V
OD
V
φ
1H
,
φ
2H
V
φ
1L
,
φ
2L
V
φ
TGH
V
φ
TGL
f
φ
R
MIN.
4.7
4.5
–0.3
4.5
–0.3
0.2
TYP.
5.0
5.0
0
V
φ
1H
0
1
MAX.
5.3
V
OD
+ 0.2
+0.5
V
φ
1H
+0.5
2
Unit
V
V
V
V
V
MHz
Caution When V
φ
TGH
> V
φ
1H
, image lag increases.
4
µ
PD3753
ELECTRICAL CHARACTERISTICS
T
a
= +25
°C,
V
OD
= 5 V, f
φ
1
= 1 MHz, data rate = 1 MHz, storage time = 10 ms
light source: 3200 K halogen lamp + C500 (infrared cut filter), input clock = 5 V
P-P
Parameter
Saturation voltage
Saturation exposure
Photo response non-uniformity
Average dark signal
Dark signal non-uniformity
Power consumption
Output impedance
Response
Response peak wavelength
Image lag
Offset level
Input capacitance of shift register
clock pin
Input capacitance of transfer gate
signal pin
Output fall delay time
Total transfer efficiency
Dynamic range
Reset feed-through noise
Bit noise
Resolution
IL
V
OS
C
φ
1
C
φ
2
C
φ
TG
t
d
TTE
DR
RFSN
BN
MTF
V
OUT
= 1 V, data rate = 2 MHz
V
sat
/DSNU
Light shielding
Light shielding
Modulation transfer function at
nyquist frequency
0
92
375
800
10
65
1500
V
OUT
= 1 V
2.5
Symbol
V
sat
SE
PRNU
ADS
DSNU
P
W
Z
O
R
F
Daylight color fluorescent lamp
63
Daylight color fluorescent lamp
V
OUT
= 500 mV
Light shielding
Light shielding
–8
Test Conditions
MIN.
1.0
TYP.
1.2
0.013
±
2
1.0
±
4
30
0.5
90
550
7
3.0
300
14
3.5
±
8
8.0
+8
50
1
117
MAX.
Unit
V
lx
•
s
%
mV
mV
mW
kΩ
V/lx
•
s
nm
%
V
pF
100
130
pF
ns
%
times
mV
mV
P-P
%
Remark
When V
OD
= 4.7 V, the response typically decreases to 90 % of the value under 5 V operation.
5
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