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LC82103 PDF даташит

Спецификация LC82103 изготовлена ​​​​«Sanyo Semicon Device» и имеет функцию, называемую «Image-Processing LSI for Facsimile/ Copier/ and OCR Applications».

Детали детали

Номер произв LC82103
Описание Image-Processing LSI for Facsimile/ Copier/ and OCR Applications
Производители Sanyo Semicon Device
логотип Sanyo Semicon Device логотип 

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LC82103 Даташит, Описание, Даташиты
Ordering number : EN*5402
Preliminaly
CMOS LSI
LC82103
Image-Processing LSI for Facsimile, Copier,
and OCR Applications
Overview
The LC82103 converts the analog video signal from the
CCD contact image sensor into high-precision binary
image data. The LC82103 includes an 8-bit A/D converter
and two 6-bit D/A converters. The 6-bit D/A converters
are used for setting reference potential (high and low) of
the 8-bit A/D converter. The LC82103 converts the input
analog data to high precision multilevel data, that is
produced by all pixel shading correction process, multi-
level image resolution converting process, and γ
correction process of user defined curves. That multilevel
data is converted to high-precision bi-level image that is
produced by using two dimensional filtering, a image
separation method, and an error diffusion technique.
Finally the LC82103 is able to reduce the image in the
horizontal and vertical directions, too. The LC82103
requires absolutely no external memory since it limits the
number of pixels processed to 3072/line. This LSI can
implement the image processing used by FAX, copier, and
OCR applications.
Features
• Number of pixels processed: 3072 pixels/line
• Processing speed: 250 ns/pixel maximum (When
CLKIN = 32 MHz)
• Built-in 8-bit A/D converter (with a sensor signal timing
adjustment function)
• Built-in two 6-bit D/A converters for setting the A/D
converter high and low reference potential
• Sensor drive circuit (supports CCDs and several CIS
types)
• Digital clamping (single-point clamping, even/odd
clamping)
• Distortion correction (white correction: all pixels, black
correction: settable black correction subtracted data)
γ correction (support user-defined curves: 8-bit data)
• Image area separation (characters, photographs,
screened halftone areas)
• Simple binary coding process (fixed threshold,
brightness adaptive threshold)
• Intermediate processing error diffusion (64 levels)
• Multilevel image resolution conversion (1/2, 2/3, 3/2,
2/1)
• Binary image reduction (horizontal: thinning, fine black
line retaining, fine white line retaining, vertical:
thinning, fine black line retaining)
• Single-voltage 5 V supply and low power due to CMOS
process fabrication
Package Dimensions
unit: mm
3159-QFP64E
[LC82103]
SANYO: QFP64E
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
63096HA (OT) No. 5402-1/5









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LC82103 Даташит, Описание, Даташиты
LC82103
Specifications
Absolute Maximum Ratings at Ta = 25°C, GND = 0 V
Parameter
Maximum supply voltage
Maximum input and output voltages
Allowable power dissipation
Operating temperature
Storage temperature
Soldering temperature endurance
Symbol
Conditions
VDD max
VI, VO max
Pd max
Ta 70°C
Topr
Tstg
Hand soldering: 3 seconds
Reflow soldering: 10 seconds
Allowable Operating Ranges at Ta = –30 to +70°C, GND = 0 V
Parameter
Supply voltage
Input voltage
Symbol
VDD
VIN
Conditions
DC Characteristics at Ta = –30 to +70°C, GND = 0 V, VDD = 4.5 to 5.5 V
Parameter
Input high-level voltage
Input low-level voltage
Input leakage current
Output high-level voltage
Output low-level voltage
Output leakage current
Current drain
Symbol
Conditions
VIH
VIL
IIH, L
VOH
VOL
IOZ
IDD
VIN = VDD, VSS
IOH = –3 mA
IOL = 3 mA
At high impedance
CLKIN = 32 MHz
Analog Characteristics
Parameter
Symbol
Conditions
[D/A Converter]
Resolution
Internal resistance
[A/D Converter] When the ATAPL potential = 0.8 V, ATAPH potential = 4.2 V
Resolution
Linearity error
Differential linearity error
Internal resistance
Ratings
–0.3 to +7.0
–0.3 to VDD + 0.3
350
–30 to +70
–55 to +125
350
235
Unit
V
V
mW
°C
°C
°C
°C
min
4.5
0
Ratings
typ
max
5.5
VDD
Unit
V
V
min
2.2
Ratings
typ
–10
2.4
–10
40
max
0.8
+10
0.4
+10
70
Unit
V
V
µA
V
V
µA
mA
min typ max Unit
6 bit
4.8 k
8 bit
±1 LSB
±1 LSB
330
No. 5402-2/5









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LC82103 Даташит, Описание, Даташиты
Block Diagram
LC82103
Pin Functions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Symbol
D7
D6
D5
D4
D3
D2
D1
D0
DGND
DVDD
A8
A7
A6
A5
A4
A3
DGND
A2
A1
A0
WR
RD
A12
DVDD
CLKIN
A11
A10
A9
Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection
I/O
B
B
B
B CPU interface data bus
B D7 is the MSB, and D0 is the LSB.
B
B
B
P Digital system ground
P Digital system power supply
I
I
I CPU interface address bus
I A12 is the MSB, and A0 is the LSB.
I
I
P Digital system ground
I
I CPU interface address bus
I
I CPU interface write signal
I CPU interface read signal
I CPU interface address bus
P Digital system power supply
I System clock input
I
I CPU interface address bus
I
Function
Continued on next page.
No. 5402-3/5










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