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PDF UPD3777CY Data sheet ( Hoja de datos )
| Número de pieza | UPD3777CY | |
| Descripción | 5400 PIXELS x 3 COLOR CCD LINEAR IMAGE SENSOR | |
| Fabricantes | NEC | |
| Logotipo |  |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µ PD3777
5400 PIXELS × 3 COLOR CCD LINEAR IMAGE SENSOR
The µ PD3777 is a color CCD (Charge Coupled Device) linear image sensor which changes optical images to electrical
signal and has the function of color separation.
The µ PD3777 has 3 rows of 5400 pixels, and each row has a double-sided readout type of charge transfer register. And
it has reset feed-through level clamp circuits, a clamp pulse generation circuit and voltage amplifiers. Therefore, it is
suitable for 600 dpi/A4 color image scanners, color facsimiles and so on.
FEATURES
• Valid photocell : 5400 pixels × 3
• Photocell’s pitch : 5.25 µ m
• Photocell size : 5.25 × 5.25 µ m2
• Line spacing
• Color filter
: 42 µ m (8 lines) Red line - Green line, Green line - Blue line
: Primary colors (red, green and blue), pigment filter (with light resistance 107 lx•hour)
• Resolution
: 24 dot/mm A4 (210 × 297 mm) size (shorter side)
: 600 dpi US letter (8.5” × 11”) size (shorter side)
• Drive clock level : CMOS output under 5 V operation
• Data rate
: 4 MHz MAX.
• Power supply : +12 V
• On-chip circuits : Reset feed-through level clamp circuits
: Clamp pulse generation circuit
: Voltage amplifiers
ORDERING INFORMATION
Part Number
Package
µ PD3777CY
CCD linear image sensor 22-pin plastic DIP (10.16 mm (400))
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S14583EJ1V0DS00 (1st edition)
Date Published December 1999 NS CP (K)
Printed in Japan
©
1999
1 page  
µ PD3777
ELECTRICAL CHARACTERISTICS
TA = +25 °C, VOD = 12 V, data rate (fφ RB) = 1 MHz, storage time = 5.5 ms, input signal clock = 5 Vp-p,
light source : 3200 K halogen lamp + C−500S (infrared cut filter, t = 1 mm) + HA−50 (heat absorbing filter, t = 3 mm)
Parameter
Saturation voltage
Saturation exposure
Red
Green
Blue
Photo response non-uniformity
Average dark signal
Dark signal non-uniformity
Power consumption
Output impedance
Response
Red
Green
Blue
Image lag
Offset level Note 1
Output fall delay time Note 2
Total transfer efficiency
Register imbalance
Response peak
Red
Green
Blue
Dynamic range
Reset feed-through noise Note 1
Random noise
Symbol
Test Conditions
Vsat
SER
SEG
SEB
PRNU VOUT = 1.0 V
ADS Light shielding
DSNU Light shielding
PW
ZO
RR
RG
RB
IL VOUT = 1.0 V
VOS
td VOUT = 1.0 V
TTE VOUT = 1.0 V, data rate = 4 MHz
RI VOUT = 1.0 V
DR1
DR2
RFTN
σ
Vsat/DSNU
Vsat/σ
Light shielding
Light shielding
MIN.
2.0
4.15
4.07
2.36
4.0
92
0
−1000
−
TYP.
2.5
0.420
0.429
0.739
6
0.2
1.5
360
0.5
5.94
5.82
3.38
2.0
5.5
50
98
1.0
630
540
460
1666
2500
−300
1.0
MAX.
−
20
2.0
5.0
540
1
7.72
7.57
4.39
7.0
7.0
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
times
mV
mV
Notes 1. Refer to TIMING CHART 2.
2. When each fall time of φ 1L and φ 2L (t2’, t1’) is the TYP. value (refer to TIMING CHART 2).
Data Sheet S14583EJ1V0DS00
5
5 Page 
µ PD3777
5. Dark signal non-uniformity : DSNU
Absolute maximum of the difference between ADS and voltage of the highest or lowest output pixel of all the valid
pixels at light shielding. This is calculated by the following formula.
DSNU (mV) : maximum of dj − ADS j = 1 to 5400
dj : Dark signal of valid pixel number j
VOUT
Register Dark
DC level
ADS
DSNU
6. Output impedance : ZO
Impedance of the output pins viewed from outside.
7. Response : R
Output voltage divided by exposure (lx•s).
Note that the response varies with a light source (spectral characteristic).
8. Image lag : IL
The rate between the last output voltage and the next one after read out the data of a line.
φ TG
Light
ON
OFF
VOUT
VOUT
V1
IL (%) = V1 × 100
VOUT
9. Register imbalance : RI
The rate of the difference between the averages of the output voltage of Odd and Even pixels, against the average
output voltage of all the valid pixels.
n
2
∑2
n
(V2j – 1 – V2j)
j=1
RI (%) =
n
∑1
n Vj
j=1
× 100
n : Number of valid pixels
Vj : Output voltage of each pixel
Data Sheet S14583EJ1V0DS00
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet UPD3777CY.PDF ] | |
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