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W6662CF, W6668F, W66880CF

Table of contents:
Info of W6662CF
Info of W6668F
Info of W66880CF

W6662CF, W6668F, W66880CF Selling Leads, Datasheet

MFG:WINBONT Package Cooled:PQFP44 D/C:99+

W6662CF, W6668F, W66880CF Datasheet download

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Part Number: W6662CF

MFG: WINBONT

Package Cooled: PQFP44

D/C: 99+

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W6662CF 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 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

W6662CF Maximum Ratings

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

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 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

W6662CF Typical Application

Flatbed Scanners
Sheetfeed Scanners
Film Scanners

W6662CF Connection Diagram

W6668F General Description

The W6668F is a high integrated USB scanner control processor. It provides the system required signals for all necessary of a CCD/CIS scanner, the signal interface includes CCD/CIS sensor, image buffer memory, motor drive, lamp/LED drive and other mechanacal input/output signals.

Features of W6668F are: (1)complete scanner on one chip solution for sheetfeed and flatbed scanners; (2)internal timing generator for 300,600 or 1200 dpi CCD/CIS sensor; (3)builin control signals for CCD lamp, CCD electric shutter, or CIS LED drive; (4)multiple CCD transfer gate driver supported to extend CCD exposure time; (5)exposure time of multiple CCD transfer gate driver can be programmed individually; (6)16-bit A/D converter.

What comes next is about its maximum ratings: (1)supply voltage with respect to VAVSS: -0.3 V to 6 V; (2)voltage on any pin other than supplies: -0.3 to VDD+0.3 V; (3)current at any pin other than supplies: 0 mA to 10 mA; (4)storage temperature: -65 to 150 .

W6668F Connection Diagram

W66880CF General Description

The W66880CF is a VFD (Vacuum Fluorescent Display) controller/ driver. It can be programmed to drive a VFD with 4 grids by 16 segments to 8 grids by 14 segments. The W66880CF also includes a 24-key key scan circuit and four LED ports and four general purpose input ports. Data communication with the W66880CF is via a serial interface.

W66880CF Features

· Flexible display modes (4 to 8 grids)
- 4 grids ×16 segments to 8 grids ×14 segments
· 6 × 4 matrix key scanning
· 8 steps dimming circuit
· High voltage output (V_DD - V_EE = 30V max)
· Four 15 mA LED ports
· Four general-purpose input port
· Internal driver output pull-down resisters
· Only one external resister is needed for the on chip oscillator
· Simple serial interface
· 44-pin plastic QFP package

W66880CF Typical Application

VFD display driving and panel function control

W66880CF Connection Diagram

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