LC82101 - Sanyo Semicon Device

LC82101 Image Processing

Ordering number : EN*4982A CMOS LSI LC82101 Image Processing Circuit for FAX, Copier, and OCR Products Preliminary Overview The LC82101 converts an analog image signal from a CCD or contact sensor to high-quality binary image data. The LC82101 uses an internal 8-bit A/D converter for A/D conversion, and in addition to the orthodox dithering technique, also.

Features

• Number of pixels processed 2048 pixels/line (64 KB memory, white correction only) 4096 pixels/line (256 KB memory, both white and black correction) 8192 pixels/line (256 KB memory, white correction only)
• Processing speed 500 ns/pixel maximum (The processing time for 1 pixel is 16/SYSCLK.)
• Supports medium speed products with a single external memory chip 100 ns access time memory allows 800 ns/pixel processing, and 60 ns access time memory allows 500 ns/pixel processing.
• AGC (The A/D converter high-level reference voltage is varied from 1.2 to 4.2 V in 0.2 V steps.)
• Built-in 8-bit A/D.