Datasheet > WM8150

WM8150

更新时间： 2024-01-14 03:14:55

品牌	Logo	应用领域
欧胜 - WOLFSON		输出元件
页数	文件大小	规格书
24页	271K
描述
SINGLE CHANNEL 12 BIT CIS/CCD AFE WITH 4 BIT WIDE OUTPUT

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中文翻译

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数据手册

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WM8150 数据手册

WM8150

Single Channel 12-bit CIS/CCD AFE with 4-bit Wide Output

DESCRIPTION

FEATURES

•

12-bit ADC

The WM8150 is a 12-bit analogue front end/digitiser IC

which processes and digitises the analogue output signals

from CCD sensors or Contact Image Sensors (CIS) at pixel

sample rates of up to 8MSPS.

8MSPS conversion rate

Low power - 170mW typical

5V single supply or 5V/3.3V dual supply operation

Single channel operation

The device includes a complete analogue signal processing

channel containing Reset Level Clamping, Correlated

Double Sampling, Programmable Gain and Offset adjust

functions. Internal multiplexers allow fast switching of offset

and gain for line-by-line colour processing. The output from

this channel is time multiplexed into a high-speed 12-bit

Analogue to Digital Converter. The digital output data is

available in 4-bit wide multiplexed format.

Correlated double sampling

Programmable gain (8-bit resolution)

Programmable offset adjust (8-bit resolution)

Programmable clamp voltage

4-bit wide multiplexed data output format

Internally generated voltage references

20-pin SSOP package

An internal 4-bit DAC is supplied for internal reference level

generation. This may be used during CDS to reference CIS

signals or during Reset Level Clamping to clamp CCD

signals. An external reference level may also be supplied.

ADC references are generated internally, ensuring optimum

performance from the device.

Serial control interface

APPLICATIONS

•

Flatbed and sheetfeed scanners

USB compatible scanners

Using an analogue supply voltage of 5V, a digital core

voltage of 5V, and a digital interface supply of either 5V or

3.3V, the WM8150 typically only consumes 160mW when

operating from a single 5V supply.

Multi-function peripherals

High-performance CCD sensor interface

BLOCK DIAGRAM

AVDD DVDD1 DVDD2

VRT VRX VRB

VSMP MCLK

VREF/BIAS

R_SV_S

TIMING CONTROL

OFFSET

DAC

OP[0]

OP[1]

OP[2]

OP[3]/SDO

12-

BIT

ADC

DATA

I/O

PORT

VINP

RLC

CDS

PGA

I/P SIGNAL

POLARITY

ADJUST

VRLC/VBIAS

WM8150

CONFIGURABLE

SERIAL

CONTROL

SEN

SCK

SDI

RLC

DAC

INTERFACE

AGND2

DGND

AGND1

WOLFSON MICROELECTRONICS plc

Production Data, November 2002, Rev 3.0

w :: www.wolfsonmicro.com

12 3 4 5 6 7...24

中文翻译

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与WM8150相关器件

型号	品牌	获取价格	描述	数据表
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
WM8150SCDS	WOLFSON	获取价格	Single Channel 12-bit CIS/CCD AFE with 4-bit Wide Output
WM8150SCDS/R	WOLFSON	获取价格	Single Channel 12-bit CIS/CCD AFE with 4-bit Wide Output
WM8152	WOLFSON	获取价格	Single Channel 16-bit CIS/CCD AFE with 4-bit Wide Output
WM8152_07	WOLFSON	获取价格	Single Channel 16-bit CIS/CCD AFE with 4-bit Wide Output
WM8152CDS	WOLFSON	获取价格	Single Channel 16-bit CIS/CCD AFE with 4-bit Wide Output
WM8152CDS/R	WOLFSON	获取价格	Single Channel 16-bit CIS/CCD AFE with 4-bit Wide Output

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