W6662CF Overview
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.
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 Gain Amplifier (PGA) with 3-channel register selected
- Integrated 8-bit offset adjustment with 3-channel register selected
