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W6662CF - SCANNER ANALOG FRONT END

General Description

The W6662 is a highly integrated CCD/CIS analog front end signal processor.

Key Features

  • 12-bit A/D Converter.
  • No Missing Code Guaranteed.
  • Three channels analog input with clamp circuit individually.
  • Integrated Correlated Double Sampler (CDS).
  • Supports Contact Image Sensors (CIS).
  • Accept CCD/CIS sensor with three channel or single channel analog out.
  • External offset voltage input for CIS reference voltage.
  • Built-in bandgap reference circuit for CDS mode and A/D Converter.
  • Integrated 6-bit Programmable.

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Datasheet Details

Part number W6662CF
Manufacturer Winbond
File Size 264.34 KB
Description SCANNER ANALOG FRONT END
Datasheet download datasheet W6662CF Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Preliminary W6662CF SCANNER ANALOG FRONT END 1. GENERAL DESCRIPTION The W6662 is a highly integrated CCD/CIS analog front end signal processor. It provides the components required for all necessary front-end signal process of a CCD/CIS scanner, including a 3channel input clamp circuit for correlated double sampling (short as CDS) mode, a multiplexer to mux 3-channel inputs to a correlated double sampling (CDS) circuit, a programmable offset adjusted and gain controlled amplifier, a 12-bit analog-to-digital converter. CDS or S&H (sample and hold) of operation modes can be chosen. The device configuration is programmed via 3-wire or 4-wired interface, operation modes, offset and gain value of each channel can be programmed. 2.