Datasheet > LM9811

LM9811

更新时间： 2024-11-18 22:30:31

品牌	Logo	应用领域
美国国家半导体 - NSC		传感器
页数	文件大小	规格书
36页	607K
描述
10-Bit Greyscale/30-Bit Color Linear CCD Sensor Processor

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LM9811 数据手册

April 1998

LM9811

10-Bit Greyscale/30-Bit Color

Linear CCD Sensor Processor

General Description

Features

n 1.5 Million pixels/s conversion rate

The LM9811 is

a high performance integrated signal

processor/digitizer for linear CCD image scanners. The

LM9811 performs all the analog processing (correlated

double sampling for black level and offset compensation,

pixel-by-pixel gain (shading) correction, and 10-bit

analog-to-digital conversion) necessary to maximize the per-

formance of a wide range of linear CCD sensors.

n Pixel-rate shading correction for individual pixels

maximizes dynamic range and resolution, even on

“weak” pixels

n Implements Correlated Double Sampling for minimum

noise and offset error

n Reference and signal sampling points digitally controlled

in 40ns increments for maximum performance

n Generates all necessary CCD clock signals

n Compatible with a wide range of linear CCDs

n Supports some Contact Image Sensors (CIS)

n TTL/CMOS input/output compatible

The LM9811 can be digitally programmed to work with a

wide variety of CCDs from different manufacturers. An inter-

nal configuration register sets CCD and sampling timing to

maximize performance, simplifying the design and manufac-

turing processes.

The LM9811 can be used with parallel output color CCDs. A

signal inversion mode eases use with CIS sensors. For

complementary voltage reference see the LM4041.

Key Specifications

n Resolution:

10 Bits

Applications

n Pixel Conversion Rate:

n Supply Voltage:

1.5MHz

n Color and Greyscale Flatbed and Sheetfed Scanners

n Fax and Multifunction Peripherals

n Digital Copiers

+5V 5%

n Supply Voltage

(Digital I/O):

+3.3V 10% or +5V 5%

n General Purpose Linear CCD Imaging

n Power Dissipation:

260mW (max)

Connection Diagrams

DS012813-1

DS012813-2

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

™

MICROWIRE is a trademark of National Semiconductor Corporation.

™

SPI is a trademark of Motorola, Inc.

DS012813

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与LM9811相关器件

型号	品牌	获取价格	描述	数据表
LM9811CCV	NSC	获取价格	10-Bit Greyscale/30-Bit Color Linear CCD Sensor Processor
LM9811CCVF	NSC	获取价格	10-Bit Greyscale/30-Bit Color Linear CCD Sensor Processor
LM9812	NSC	获取价格	LM9812 30-Bit Color Linear CCD Sensor Processor
LM9812CCV	NSC	获取价格	LM9812 30-Bit Color Linear CCD Sensor Processor
LM9820	ETC	获取价格
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LM9822	NSC	获取价格	LM9822 3 Channel 42-Bit Color Scanner Analog Front End
LM9822_14	TI	获取价格	3 Channel 42-Bit Color Scanner Analog Front End
LM9822CCWM	TI	获取价格	3 Channel 42-Bit Color Scanner Analog Front End