UPD3725AD NEC, UPD3725AD Datasheet

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UPD3725AD

Manufacturer Part Number
UPD3725AD
Description
5000-bit color liner image sensor
Manufacturer
NEC
Datasheet

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Part Number:
UPD3725AD
Manufacturer:
NEC
Quantity:
6 241
Document No. S11324EJ1V0DS00 (1st edition)
Date Published March 1996 P
Printed in Japan
changes optical images to electrical signal and has the function of color separation.
suitable for high resolution color image scanners and digital color copiers.
FEATURES
• Valid photocell
• Photocell's pitch : 14 m
• Line distance
• Color filter
• Resolution
• Drive clock level : CMOS output under 5 V operation
• Data rate
• High speed scan : 320 s/line
• Power supply
ORDERING INFORMATION
The PD3725A is a high sensitivity 5000-bit
The PD3725A has 3 rows of 5000-bit photocell array and 6 rows of 2500-bit charge transferred register, so it is
• Pins 18 and 15, 17 and 14, 11 and 8, 12 and 9 are each connected inside of the device (refer to BLOCK
• The specification of the total transfer efficiency (TTE) is improved from 92 % to 93.5 % (MIN.) (refer to
DIAGRAM).
ELECTRICAL CHARACTERISTICS).
Part Number
CHANGED POINTS from the PD3725D-01
PD3725AD
5000-BIT
: 5000-bit
: 112 m (8 lines) R(red) bit-G(green) bit, Gbit-B(blue)bit
: Primary colors (red, green and blue), pigment filter (with light resistance 10
: 16 dot/mm across the shorter side of a B4-size (257
: 16 MHz MAX.
: +12 V
The information in this document is subject to change without notice.
CCD linear image sensor 24-pin ceramic DIP (600 mil)
3
3 CCD COLOR LINEAR IMAGE SENSOR
DATA SHEET
3 CCD (Charge Coupled Device) color linear image sensor which
Package
MOS INTEGRATED CIRCUIT
364 mm) sheet
PD3725A
7
lx•Hour)
©
1996

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UPD3725AD Summary of contents

Page 1

... Power supply : +12 V CHANGED POINTS from the PD3725D-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 93.5 % (MIN.) (refer to ELECTRICAL CHARACTERISTICS). ...

Page 2

BLOCK DIAGRAM R1B OUT ( OUT OUT ( OUT OUT ( OUT R2B 1A1 2A1 ...

Page 3

PIN CONFIGURATIONS (Top View) CCD linear image sensor 24-pin ceramic DIP (600 mil) Signal output 3 (GREEN OUT Signal output 6 (RED OUT Signal output 5 (RED OUT Output drain voltage V OD Reset ...

Page 4

ABSOLUTE MAXIMUM RATINGS (T Parameter Output drain voltage Shift register clock voltage Reset signal voltage Transfer gate signal voltage Operating ambient temperature Storage temperature Caution Exposure to Absolute Maximum Rating for extended periods may affect device reliability; exceeding the ratings ...

Page 5

ELECTRICAL CHARACTERISTICS øR1B R2B light source: 3200 K halogen lamp +C-500S (infrared cut filter mm), input signal clock = 5 V Parameter Symbol Saturation ...

Page 6

INPUT PIN CAPACITANCE Parameter Transfer gate pin capacitance Reset clock pin capacitance Last stage shift register clock pin capacitance Shift register clock pin capacitance A Shift register clock pin capacitance B 6 Symbol Pin name Pin No. MIN. TG1 16 ...

Page 7

... Caution Pins 18 ( 1A1) and 15 ( 1A2 1A3) and 8 ( 1A4) are each connected inside of the device not input different timings to them. And also pins 17 ( 2A1) and 14 ( 2A2 2A3) and 9 ( 2A4) are each connected inside of the device not input different timings to them (refer to BLOCK DIAGRAM). ...

Page 8

TIMING CHART 2 TG1, TG3 TG2 1A1 to 1A4, 1L 2A1 to 2A4, 2L R1B R2B S4997 S4999 D128 OUT S4996 S4998 S5000 D129 OUT Invalid photocell (6 bits) D130 D132 D131 ...

Page 9

TIMING CHART 3 (Usual speed drive t 1 90% 1L, 1A1 to 1A4 10 2L, 2A1 to 2A4 t 3 R2B R1B OUT OUT TIMING CHART 4 90% ...

Page 10

Recommended Timing Symbol ...

Page 11

TIMING CHART5 (High speed drive t 21 90% 1A1 to 1A4 10% 2A1 to 2A4 1L 2L R2B R1B OUT OUT MHz) R1B R2B t ...

Page 12

... When making the falling edge of 1L, 2L early, output signal is effected by noise from reset clock R1B, R2B. To avoid the effection of this noise, the falling edge of R1B, R2B should be set earlier. Driving at high speed, drive capability is necessary to be powered up. So design the peripheral circuit referring to peripheral circuit example 2. 12 ...

Page 13

DEFINITIONS OF CHARACTERISTIC ITEMS 1. Saturation voltage: V sat Output signal voltage at which the response linearity is lost. 2. Saturation exposure: SE Product of intensity of illumination (I 3. Photo response non-uniformity: PRNU The peak/bottom ratio to the average ...

Page 14

Image Lag: IL The rate between the last output voltage and the next one after read out the data of a line. TG Light ON V OUT 100 (%) V OUT 9. Register Imbalance: RI ...

Page 15

STANDARD CHARACTERISTIC CURVES (T DARK OUTPUT TEMPERATURE CHARACTERISTICS 0.5 0.25 0 Operating Ambient Temperature T TOTAL SPECTRAL RESPONSE CHARACTERISTICS (without infrared cut filter) 100 400 ...

Page 16

PERIPHERAL CIRCUIT EXAMPLE F/ R2B TG1 Remark Inverters: PD74HC04 OUT OUT OUT OUT ...

Page 17

PERIPHERAL CIRCUIT EXAMPLE 2 (For high speed drive) R2B 2 TG1 * * Remarks 1. Inverters: 74AC04 2. For inverter, use high speed inverter which has double driving capability of 74AC04 * ...

Page 18

... CCD LINEAR IMAGE SENSOR 24PIN CERAMIC DIP (600 mil) (Unit : mm) 3.5 1.0 0.97 0.3 3.3 0.35 4.33 NOTE 1 pin 1 index and connecting parts are made of silver wax and plated with gold. As they are electrically connected with GND, be sure not to touch with other wirings on the board. 18 2.62 ...

Page 19

RECOMMENDED SOLDERING CONDITIONS When soldering this product highly recommended to observe the conditions as shown below. If other soldering processes are used the soldering is performed under different conditions, please make sure to consult with our ...

Page 20

PD3725A ...

Page 21

... Similar precautions need to be taken for PW boards with semiconductor devices on it. 2 HANDLING OF UNUSED INPUT PINS FOR CMOS Note: No connection for CMOS device inputs can be cause of malfunction connection is provided to the input pins possible that an internal input level may be generated due to noise, etc., hence causing malfunction. CMOS device behave differently than Bipolar or NMOS devices ...

Page 22

... Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices in “Standard“ unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact NEC Sales Representative in advance ...

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