HD63084 - Hitachi Semiconductor

HD63084 Document Image Pre-Processor

H063084---------------- 01 PP (Document Image Pre-Processor) The HD63084 (DIPP) is an document image processor used as a peripheral of a microcomputer. It reads analog image signals that have been photoelectrically converted by CCD line sensors or other optical devices, corrects the shading distortion of the signals, then converts the signals to digital for.

Features

• High speed reading of image signals . 5M pixel/sec (at input clock frequency of 10 MHz)
• Highly accurate processing of image signals Peak level of image signals. 0.1 V - 2.0V Built
·in a
·bit peak value detection circuit Built
·in 7
·bit successive approximation pixel A/D and D/A converter Built
·in 4
·bit flash
·type AID converter
• Various output modes Binary data output mode Dithered data output mode (Programmable dithered pattern of 16 pixel x 16 pixel) 4
·bit coded data mode (16 gradations)
• Automatic judgement of horizontal and vertical resolutions
• Interfaceable with either Motorola type o.