MN3646 Panasonic, MN3646 Datasheet

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MN3646

Manufacturer Part Number
MN3646
Description
2880-Bit High-Responsivity CCD Linear Image Sensor
Manufacturer
Panasonic
Datasheet
CCD Linear Image Sensor
MN3646
2880-Bit High-Responsivity CCD Linear Image Sensor
The MN3646 is a 2880-pixel high sensitivity CCD linear image
sensor combining photo-sites using low dark output floating
photodiodes and CCD analog shift registers for read out. It provides
large output at a high S/N ratio for visible light inputs over a wide
range of wavelength.
registers for read out are integrated in a single chip.
logic.
voltage very low.
human eye in the entire visible region.
obtained.
signal output pin (OS), it is possible to obtain a signal with a high
S/N ratio by carrying out differential amplification of the OS and
DS outputs.
2880 floating photodiodes and n-channel buried type CCD shift
Operates on +5V single power supply and can driven by 5V CMOS
Use of photodiodes with a new structure has made the dark output
Has a smooth spectral response that is close to the sensitivity of the
Large signal output of typically 1200mV at saturation can be
Since a compensation output pin (DS) is provided in addition to the
Overview
Features
Block Diagram
OS
V
22
1
SSA
DS
2
V
21
DD
V
3
SSD
Reset pulse
rise circuit
V
RS
20
4
voltage
OD
BT
RD
5
19
1
2
1
2
supply voltage
1 1
2 2
B1 to B13 : Black reference pixels
D1 to D 6 : Dummy invalid pixels
RD power
rise circuit
1
2
1 1 1 1 1
2 2 2 2 2
1
2 2 2 2 2
1
1
1
1
objects.
Barcode readers
Measurement of position and dimensions of
Application
Pin Assignments
1
2 2 2 2 2 2
1 1 1 1 1
2 2 2 2 2
OS
DS
V
RS
BT
NC
NC
NC
NC
1
ø
ø
SSD
SG
1
1
C20
1
WDIP022-G-0470
10
11
1
2
3
4
5
6
7
8
9
(Top View)
1
2880
1
1
ø
ø
13
9
1
2
22
21
20
19
18
17
16
15
14
13
12
ø
10
SG
V
V
V
RD
NC
NC
NC
NC
NC
ø
NC
DD
OD
SSA
2

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MN3646 Summary of contents

Page 1

... MN3646 2880-Bit High-Responsivity CCD Linear Image Sensor Overview The MN3646 is a 2880-pixel high sensitivity CCD linear image sensor combining photo-sites using low dark output floating photodiodes and CCD analog shift registers for read out. It provides large output at a high S/N ratio for visible light inputs over a wide range of wavelength ...

Page 2

... MN3646 Absolute Maximum Ratings (Ta=25˚C, V Parameter Power supply voltage Input pin voltage Output pin voltage Operating temperature range Storage temperature range Operating Conditions • Voltage conditions (Ta=–20 to +60˚C, V Parameter Symbol V Internal digital circuit power supply voltage V CCD output circuit power supply voltage ...

Page 3

... Condition R Note 1 Note 2 Note 3 SAT Note 3 Dark condition, see Note 4 DRK Dark condition, see Note 4 O Note 5 Note 6 OS Note 6 DS – V Note 100 (%) MN3646 min typ max Unit — 550 650 pF — 150 200 pF — — min ...

Page 4

... MN3646 Optical Characteristics (continued) Note 3) The Saturation output voltage (V characteristics cannot be maintained as the incident light intensity is increased. (The light intensity of exposure at this point is called the saturation exposure.) Note 4) The dark signal output voltage (V Ta=25˚C and T =10ms. Normally, the dark output voltage doubles for every 8 to 10˚C rise in Ta, and is proportional to ...

Page 5

... CCD Linear Image Sensor Construction of the Image Sensor The MN3646 can be made up of the three sections of—a) photo detector region, b) CCD transfer region (shift register), and c) output region. a) Photo detector region • The photoelectric conversion device consists of a 7µm floating photodiode and a 3µm channel stopper for each pixel, and 2880 of these devices are linearly arranged side by side at a pitch of 10µ ...

Page 6

... MN3646 (2) Drive timing 90% 10% ø SG 90% ø Graphs and Characteristics Photoelectric Conversion Characteristics Characteristics under standard operating condition Light source: Red LED 10 –4 – Exposure (lx·s) ø ø 90 90% Spectral Response Characteristics 100 –2 10 400 CCD Linear Image Sensor 90% ...

Page 7

Request for your special attention and precautions in using the technical information and (1) If any of the products or technical information described in this book exported or provided to non-residents, the laws and regulations of the ...

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