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PDF UPD8891 Data sheet ( Hoja de datos )
| Número de pieza | UPD8891 | |
| Descripción | COLOR CCD LINEAR IMAGE SENSOR | |
| Fabricantes | NEC | |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µ PD8891
(5340 × 5340) PIXELS × 3 + 2670 PIXELS × 3 COLOR CCD LINEAR IMAGE SENSOR
DESCRIPTION
The µ PD8891 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 PD8891 has 3 rows of (5340+5340) staggered pixels, and each row has a dual-sided readout type of charge
transfer register, and has 3 rows of 2670 pixels, and each row has a single-sided readout type of charge transfer
register. And it has reset feed-through level clamp circuits and voltage amplifiers. Therefore, it is suitable for 1200
dpi/A4 color image scanners, color facsimiles and so on.
FEATURES
• Valid photocell : (5340+5340) pixels × 3 + 2670 pixels × 3
• Photocell pitch : 5.25 µ m (1200 dpi), 10.5 µ m (300 dpi)
• Photocell size : 5.25 × 5.25 µ m2 (1200 dpi), 10.5 × 8 µ m2 (300 dpi)
• Line spacing : [1200 dpi sensor]
52.5 µ m (10 lines) Red line - Green line, Green line - Blue line
10.5 µm (2 lines) Odd line – Even line (for each color)
[300 dpi sensor]
• Color filter
42 µ m (4 lines) Red line - Green line, Green line - Blue line
: Primary colors (red, green and blue), pigment filter (with light resistance 107 lx•hour)
• Resolution
: 48 dot/mm A4 (210 × 297 mm) size (shorter side)
: 1200 dpi US letter (8.5” × 11”) size (shorter side)
• Drive clock level : CMOS output under 5 V operation
• Data rate
: 5 MHz Max.
• Power supply : +12 V
• On-chip circuits : Reset feed-through level clamp circuits
:: Voltage amplifiers
ORDERING INFORMATION
Part Number
Package
µ PD8891CY
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 products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. S16039EJ2V0DS00 (2nd edition)
Date Published March 2003 NS CP (K)
Printed in Japan
2002
1 page  
µ PD8891
PHOTOCELL ARRAY STRUCTURE DIAGRAM 2 (The Relation of the Photocell Array)
Dummy
Optical black Invalid photocell
Valid photocell
Invalid photocell
1200 dpi
46 pixels
1-45
2-46
100 pixels
8 pixels
47-145
147 149 151 153 155 157
48-146
148 150 152 154 156 158
10680 pixels
−
8 pixels
10831 10833 10835-10841
−
10832 10834 10836-10842
12 pixels
300 dpi
1-12
25 pixels
13-37
2 pixels
38, 39
40
2670 pixels
−
2 pixels
2709
2710,
2711
Data Sheet S16039EJ2V0DS
5
5 Page 
TIMING CHART 1−3 (600 dpi, odd pixel, for each color)
φ TG1 to φ TG3
φ 1-1200, φ 1L
φ 2-1200, φ 2L
φ RB
φ CLB (Bit clamp mode)
Note
φ CLB (Line clamp mode)
VOUT1 to VOUT3
Optical black
(50 pixels)
Valid photocell
(5340 pixels)
Invalid photocell
(4 pixels)
Invalid photocell
(4 pixels)
Note Set the φ RB pulse and φ CLB pulse (bit clamp mode) to high level during the φ TG1 to φ TG3 pulse.
And set the φ RB pulse to high level while the φ CLB pulse is low level at line clamp mode.
Remark Inverse pulse of the φ TG1 to φ TG3 can be used as φ CLB at line clamp mode.
Note
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet UPD8891.PDF ] | |
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