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參數資料
| 型號： | LC82103 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數： | 1/5頁 |
| 文件大小： | 196K |
| 代理商： | LC82103 |
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
CMOS LSI
63096HA (OT) No. 5402-1/5
Preliminaly
SANYO: QFP64E
[LC82103]
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
Image-Processing LSI for Facsimile, Copier,
and OCR Applications
LC82103
Ordering number : EN*5402
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相關代理商/技術參數 |
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|---|---|
| LC821031 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Image-Processing IC for Facsimile, Copier, and OCR Products |
| LC82104 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Color Image Processing IC for Fax and Scanner Applications |
| LC8211 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Halftone Processing IC for Fax, Copier and Scanner |
| LC82-1202G | 制造商:SEI Stackpole Electronics Inc 功能描述: |
| LC8213 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Image Data Compression/Expansion Processor |
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