Datasheet > WM8144-10

WM8144-10

更新时间： 2024-09-25 12:19:39

品牌	Logo	应用领域
欧胜 - WOLFSON		/
页数	文件大小	规格书
27页	396K
描述
Integrated 10-bit Data Acquisition system for Imaging Applications

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中文翻译

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数据手册

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WM8144-10 数据手册

WM8144-10

Production Data

October 1997 Rev. 3.0

Integrated 10-bit Data Acquisition system for

Imaging Applications

Description

Features

WM8144-10 integrates the analogue signal conditioning

required by CCD sensors with a 10-bit ADC and optional

pixel-by-pixel image compensation. WM8144-10 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

10-Bit ADC with maximum 6 MSPS

Digital post-processing for pixel-by-pixel

image compensation

Each analogue conditioning channel provides reset level

clamp, CDS, fine offset level shifting and gain

amplification. The three channels are multiplexed into the

ADC. Output from the ADC can either be direct or passed

through a digital post-processing function. The post-

processing provides compensation for variations in offset

and shading on a pixel-by-pixel basis.

•

Simple clocking scheme

Control by serial or parallel interface

Time-multiplexed eight-bit data output mode

48 pin TQFP package

Pin compatible with WM8144-12

The flexible output architecture allows ten-bit data to be

accessed either on a ten-bit bus or via a time-multiplexed

eight-bit bus. The WM8144-10 can be configured for pixel-

by-pixel or line-by-line multiplexing operation. Reset level

clamp and/or CDS features can be optionally bypassed.

Device configuration is either by a simple serial or eight-

bit parallel interface.

Applications

•

Document scanners

CCD sensor interfaces

Contact image sensor (CIS) interfaces

Block Diagram

RLC

VSMP MCLK

VRLC

VRU

VRT

VRB

VRL

VMID

AVDD

AGND

DVDD1 DVDD2 DGND

MUX

CC[2:0]

TIMING CONTROL

VMID

CL RS

OFFSET

S/H

RINP

GINP

BINP

EXTERNAL

DATA STORE

INTERFACE

PGA

CDATA(7:0)

S/H

WM8144-10

CDS

5-BIT REG

8-BIT + SIGN

DAC

VMID

ORNG

OEB

OFFSET

10/8

MUX

IMAGE

COMPENSATION

PROCESSING

10 BIT

ADC

OP[9:0]

PGA

S/H

CDS

5-BIT REG

8-BIT + SIGN

DAC

VMID

OFFSET

PNS

PGA

S/H

CONFIGURABLE

SDI / DNA

SCK / RNW

SERIAL/PARALLEL

CONTROL INTERFACE

CDS

5-BIT REG

8-BIT + SIGN

DAC

VMID

SEN / STB

NRESET

Production Data data sheets contain fi-

nal specifications current on publication

date. Supply of products conforms to

Wolfson Microelectronics standard terms

and conditions

Wolfson Microelectronics

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

Tel: +44 (0) 131 667 9386

email: admin@wolfson.co.uk

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

Fax: +44 (0) 131 667 5176

12 3 4 5 6 7...27

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与WM8144-10相关器件

型号	品牌	获取价格	描述	数据表
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
WM8150CDS	WOLFSON	获取价格	SINGLE CHANNEL 12 BIT CIS/CCD AFE WITH 4 BIT WIDE OUTPUT
WM8150CDS/R	WOLFSON	获取价格	Single Channel 12-bit CIS/CCD AFE with 4-bit Wide Output
WM8150CDSR	WOLFSON	获取价格	SINGLE CHANNEL 12 BIT CIS/CCD AFE WITH 4 BIT WIDE OUTPUT

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