LC821031中文资料三洋数据手册PDF规格书
LC821031规格书详情
Overview
The LC821031 converts analog video signals from CCD and contact sensors to high-quality binary image data. It includes both an 8-bit A/D converter and a 6-bit D/A converter for setting the reference potential and creates high-quality multi-valued data using a gamma conversion technique that supports arbitrary gamma curves. It also provides both black and white all-pixel distortion correction and multi-valued resolution conversion. It then applies two-dimensional filtering to this multi-valued data to separate the document image into text, photograph, and halftone areas. After converting the image to a binary image using an error diffusion technique that acquires high-quality images, it applies reduction in both the primary and secondary scan directions. Since the LC821031 limits the number of pixels processed per line to 3072 pixels, it needs no external memory to implement this processing. Thus the LC821031 implements the image processing used by facsimile, copier, and OCR products.
特性 Features
• Number of pixels processed: 3072 pixels/line
• Processing speed: 250 ns/pixel, maximum (When CLKIN = 32 MHz)
• 8-bit A/D converter (Includes a sensor signal timing adjustment function.)
• 6-bit D/A converter for setting the A/D converter reference potential
• Sensor drive circuit (Supports most CCD and CIS devices.)
• Digital clamp (single-point clamping and even/odd clamping)
• Distortion correction (white correction: all-pixel correction, black correction: all-pixel correction)
• Gamma correction (Supports user-defined curves: 8-bit data)
• Image area separation
• Simple binary coding (fixed threshold and density adaptive threshold)
• Halftone processing: error diffusion method (64 levels)
• Multi-value resolution conversion (Conversion ratios of 1:2, 2:3, 3:2, and 2:1)
• Binary image reduction (Main scan line direction: decimation, fine black line retention, fine white line retention; secondary scan line direction: decimation, fine line retention)
• Fabricated in a CMOS process for single 5-V power supply and low power.
产品属性
- 型号:
LC821031
- 制造商:
SANYO
- 制造商全称:
Sanyo Semicon Device
- 功能描述:
Image-Processing IC for Facsimile, Copier, and OCR Products
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
SANYO/三洋 |
23+ |
QFP |
89630 |
当天发货全新原装现货 |
询价 | ||
SANYO/三洋 |
24+ |
QFP |
22055 |
郑重承诺只做原装进口现货 |
询价 | ||
ONSEMI |
13+ |
QFP |
27846 |
进口原拖盘原盒现货/300 |
询价 | ||
ON |
2023+ |
QFP |
8800 |
正品渠道现货 终端可提供BOM表配单。 |
询价 | ||
SANYO |
98+ |
QFP |
2145 |
全新原装进口自己库存优势 |
询价 | ||
SANYO/三洋 |
24+ |
NA/ |
72 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
SANYO |
09+ |
QFP |
37 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
SANYO |
25+ |
QFP |
6500 |
独立分销商 公司只做原装 诚心经营 免费试样正品保证 |
询价 | ||
SANYO |
23+ |
BGAQFP |
8659 |
原装公司现货!原装正品价格优势. |
询价 | ||
SANYO/三洋 |
2450+ |
QFP |
8850 |
只做原装正品假一赔十为客户做到零风险!! |
询价 |


