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W6662CF

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 voltag...

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SeekIC No. : 004544898 Detail

W6662CF: 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 ...

W6662CF Data Sheet

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Part Number:
W6662CF
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/20

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Product Details

Description



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
· 3 MHz sampling rate of offset/gain adjustment circuit
· Three-wired or four-wired Serial Interface programmable
· Registers readback capability
· Low power CMOS device
· Power down mode supported
· 3/5V digital I/O pin
· Packageed in 48-pin QFP


Application

Flatbed Scanners
Sheetfeed Scanners
Film Scanners


Pinout

Connection Diagram


Specifications

PARAMETER SYMBOL RATING UNITS
Supply Voltage with respect to AVSS (at AVDD pin) VAVDD -0.3 to 6 V
Supply Voltage with respect to DRVSS (at DRVDD
pin)		 VDRVDD -0.3 to 6 V
Voltage on any pin other than VAVDD supplies   -0.3 to VAVDD + 0.3 V
Voltage on any pin other than VDRVDD supplies   -0.3 to VDRVDD + 0.3 V
Current at any pin other than supplies   0 to 10 mA
Storage Temperature TST -65 to 150 °C



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 3- channel 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 programme




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