UPD3725A Datasheet, PDF (1/22 Pages) NEC – 5000-BIT x 3 CCD COLOR LINEAR IMAGE SENSOR

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