Datasheet > WM8143-12

WM8143-12

更新时间： 2024-02-03 07:32:02

品牌	Logo	应用领域
欧胜 - WOLFSON		/
页数	文件大小	规格书
24页	379K
描述
12-bit/4MSPS CCD Signal Processor

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中文翻译

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数据手册

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WM8143-12 数据手册

WM8143-12

12-bit/4MSPS CCD Signal Processor

Production Data Nov. 1999 Rev 4

Description

Features

The WM8143-12 integrates the analogue signal

conditioning required by CCD sensors with a 12-bit ADC.

The WM8143-12 requires minimal external circuitry and

provides a cost-effective sensor to digital domain system

solution.

Reset level clamp

Correlated double sampling (CDS)

Fine offset level shifting

Programmable gain amplification

12-bit ADC with maximum 4 MSPS

Simple clocking scheme

Control by serial or parallel interface

Time multiplexed eight-bit data output mode

32 pin TQFP package

Each of the three analogue conditioning channels

includes reset level clamp, CDS, fine offset level shifting

and programmable gain amplification. The three channels

are multiplexed into the ADC. The output from the ADC is

fed to the output bus pins OP[11:0] via a 12/8 bit

multiplexer, enabled by the OEB signal.

Interface compatible with WM8144-10 and

WM8144-12

The flexible output architecture allows twelve-bit data to

be accessed either on a twelve-bit bus or via a time-

multiplexed eight-bit bus. The WM8143-12 can be

configured for pixel-by-pixel or line-by-line multiplexing

operation. Reset level clamp and/or CDS features can be

optionally bypassed. The device configuration is

programmed either via a simple serial interface or via an

eight-bit parallel interface.

Applications

Flatbed scanners

Sheet feed scanners

Film scanners

CCD sensor interfaces

Contact image sensor (CIS) interfaces

The serial/parallel interfaces of the WM8143-12 are

control compatible with those of the WM8144-10 and

WM8144-12.

Block Diagram

VRLC

VRU

VRT

VRB

VMID

VSMP

MCLK

RLC

AGND

DGND

DVDD

AVDD

MUX

TIMING CONTROL

VMID

OFFSET

S/H

RINP

GINP

PGA

S/H

WM8143-12

CDS

5-BIT REG

8-BIT +

SIGN DAC

VMID

OEB

OFFSET

S/H

12/8

MUX

12-bit

ADC

PGA

S/H

OP[11:0]

CDS

5-BIT REG

8-BIT +

SIGN DAC

VMID

OFFSET

S/H

BINP

PGA

S/H

CONFIGURABLE

SERIAL/PARALLEL

CONTROL INTERFACE

SDI / DNA

SCK / RNW

SEN / STB

NRESET

CDS

5-BIT REG

8-BIT +

SIGN DAC

VMID

Production Data datasheets contain

final specifications current on

publication date. Supply of products

conforms to Wolfson

Microelectronics' terms and

conditions.

Ó1999 Wolfson Microelectronics Ltd.

Wolfson Microelectronics

Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK

Tel: +44 (0) 131 667 9386 Fax +44 (0) 131 667 5176

email: sales@wolfson.co.uk

www: http://www.wolfson.co.uk

12 3 4 5 6 7...24

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与WM8143-12相关器件

型号	品牌	获取价格	描述	数据表
WM8143-12CFT/V	WOLFSON	获取价格	12-bit/4MSPS CCD Signal Processor
WM8144	WOLFSON	获取价格	Integrated 10-bit Data Acquisition system for Imaging Applications
WM8144-10	WOLFSON	获取价格	Integrated 10-bit Data Acquisition system for Imaging Applications
WM8144-10CFT/V	WOLFSON	获取价格	Integrated 10-bit Data Acquisition system for Imaging Applications
WM8144-12	WOLFSON	获取价格	Integrated 12-bit Data Acquisition System for Imaging Applications
WM8144-12CFT/V	WOLFSON	获取价格	Integrated 12-bit Data Acquisition System for Imaging Applications
WM8146	WOLFSON	获取价格	12-bit(8+4-bit) Linear Sensor Image Processor
WM8148	WOLFSON	获取价格	12-bit/12MSPS CCD/CIS Analogue Front End/Digitiser
WM8150	WOLFSON	获取价格	SINGLE CHANNEL 12 BIT CIS/CCD AFE WITH 4 BIT WIDE OUTPUT
WM8150_05	WOLFSON	获取价格	Single Channel 12-bit CIS/CCD AFE with 4-bit Wide Output

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