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PDF UPD3725A Data sheet ( Hoja de datos )
| Número de pieza | UPD3725A | |
| Descripción | 5000-BIT x 3 CCD COLOR LINEAR IMAGE SENSOR | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD3725A
5000-BIT × 3 CCD COLOR LINEAR IMAGE SENSOR
The µPD3725A is a high sensitivity 5000-bit × 3 CCD (Charge Coupled Device) color linear image sensor which
changes optical images to electrical signal and has the function of color separation.
The µPD3725A has 3 rows of 5000-bit photocell array and 6 rows of 2500-bit charge transferred register, so it is
suitable for high resolution color image scanners and digital color copiers.
FEATURES
• Valid photocell : 5000-bit × 3
• Photocell's pitch : 14 µm
• Line distance : 112 µm (8 lines) R(red) bit-G(green) bit, Gbit-B(blue)bit
• Color filter
: Primary colors (red, green and blue), pigment filter (with light resistance 107lx•Hour)
• Resolution
: 16 dot/mm across the shorter side of a B4-size (257 × 364 mm) sheet
• Drive clock level : CMOS output under 5 V operation
• Data rate
: 16 MHz MAX.
• High speed scan : 320 µs/line
• Power supply : +12 V
CHANGED POINTS from the µPD3725D-01
• Pins 18 and 15, 17 and 14, 11 and 8, 12 and 9 are each connected inside of the device (refer to BLOCK
DIAGRAM).
• The specification of the total transfer efficiency (TTE) is improved from 92 % to 93.5 % (MIN.) (refer to
ELECTRICAL CHARACTERISTICS).
ORDERING INFORMATION
Part Number
µPD3725AD
Package
CCD linear image sensor 24-pin ceramic DIP (600 mil)
The information in this document is subject to change without notice.
Document No. S11324EJ1V0DS00 (1st edition)
Date Published March 1996 P
Printed in Japan
©
1996
1 page  
µPD3725A
ELECTRICAL CHARACTERISTICS
TA = +25 °C, VOD = 12 V, føR1B, fφR2B = 1 MHz, data rate = 2 MHz, storage time = 10 ms,
light source: 3200 K halogen lamp +C-500S (infrared cut filter, t = 1 mm), input signal clock = 5 Vp-p
Parameter
Saturation voltage
Saturation exposure
Photo response non-uniformity
Average dark signal
Dark signal non-uniformity
Power consumption
Output impedance
Response
Image lag
Offset levelNote 1
Output fall delay timeNote 2
Total transfer efficiency
Register imbalance
Red response peak
Green response peak
Blue response peak
Dynamic range
Reset feed through noise
Symbol
Conditions
Vsat
SER
SEG
SEB
PRNU VOUT = 500 mV
ADS Light shielding
DSNU Light shielding
PW
ZO
RR
RG
RB
IL VOUT = 500 mV
VOS
td
TTE
fφR1B, fφR2B = 8 MHz, data rate = 16 MHz
RI VOUT = 500 mV
MIN.
1.0
–5
2.71
2.66
1.45
4
33
93.5
0.0
DR
RFSN
Vsat/DSNU
Light shielding
TYP.
1.3
0.3
0.3
0.6
±6
0.1
0.5
300
0.5
3.87
3.80
2.07
2
6
40
98
630
540
460
2600
300
MAX.
–
±15
5
+5
500
1
5.03
4.91
2.70
5
8
47
4.0
500
Unit
V
lx•s
lx•s
lx•s
%
mV
mV
mW
kΩ
V/lx•s
V/lx•s
V/lx•s
%
V
ns
%
%
nm
nm
nm
times
mV
Notes 1. Refer to TIMING CHART 3, 5.
2. Each fall delay time of φ1L and φ2L (t11, t27 and t1, t37) is the TYP. value (refer to TIMING CHART 3, 5).
5
5 Page 
TIMING CHART5 (High speed drive fφR1B, fφR2B = 5 to 8 MHz)
t30
φ1A1 to φ1A4
t21
10%
90%
t31
µPD3725A
φ2A1 to φ 2A4
φ1L
φ 2L
φR2B
φR1B
t27 t26
t37 t36
t32
t33
t34
t35
t22
t23 t24 t25
VOUT2, 4, 6
VOUT1, 3, 5
td
90%
VOS
10%
td
90%
VOS
10%
11
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet UPD3725A.PDF ] | |
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