Datasheet > LM9702

LM9702

更新时间： 2024-11-22 22:30:31

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
4页	76K
描述
LM9702 Real Time Digital Image Processor

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LM9702 数据手册

October 2002

LM9702 Real Time Digital Image Processor

General Description

Applications

The LM9702 contains all functions needed to build a VGA digital

still and/or video camera. It incorporates a 16 bit RISC micropro-

cessor, a flexible image processing pipeline, hardware JPEG

compression, and the required periphery modules in a single IC.

This architecture allows a very fast click-to-click time and full res-

olution video without sacrificing image quality or cost; because

the computation extensive operations are processed by circuitry

dedicated to image processing. The highly optimized memory

management provided by the LM9702 keeps the memory cost of

the complete camera to a minimum.

! PC Cameras

! Dual Mode Cameras

! Digital Still Cameras

! Clip-on Cameras for PDA’s, Cell Phones, etc.

! Embedded Cameras for PDA’s, Cell Phones, etc.

! Industrial Cameras

Key Specifications

Array Formats

CIF,VGA, SXGA (B/W)

Bayer Pattern

Input Color Format

Digital Image Processor

Compression

A chip set comprising of the LM9702 and a National VGA CMOS

image sensor complemented by a lens, battery, compact flash,

power management for the battery, and LCD (optional) yields a

complete high performance cost effective digital still and/or video

camera.

10 bit (12 bit internal)

Format

Ratio

Base Line JPEG

Programmable

Video In Frame Rate

up to 15MHz pixel clock

Features

Video Outputs

! Embedded 16 bit RISC processor system

USART

USB

up to 921.6K-bits per second

960K-byte/s

Up to 16M-bytes of external memory addressing space

16K-bytes Internal RAM

6 channel DMA

8 channel versatile timer

Interrupt controller

16 input wake up module

Full duplex USART

µwire/SPI serial port

16 general purpose IOs (GPIO)

SD Memory Card Interface (SPI Mode)

External CR16C Memory

Memory Type

SRAM, Flash, Compact Flash,

EEPROM

up to 16 Mbyte

Address Space

Speed

up to 36MHz

Serial Interfaces

ACCESS.bus

µwire/SPI

up to 400KHz

up to 6.0 MHz

! Glueless CMOS image sensor interface

! ACCESS.bus serial interface for imager sensor control

! Integrated USB v1.1 for connection to PC

! Raw Image Data Processor

16 bit RISC Processor

MIPS

Internal Memory

up to 36

16K-bytes

Clock Speed

up 60Mhz from 12MHz Crystal

Defective pixel correction

Digital gain and brightness adjustment

Raw data statistics measurement engine

Power Supply

Core

2.25 to 2.75 Volt

2.7 to 3.6 Volt

! Color Image processing

Bayer to RGB Interpolation

Fully programmable color correction

Image sharpening

Programmable gamma correction

Thumbnail generation

Average Power Dissipation

Package

90mW

128 Laminated CSP

-10^oC to +85^oC

Operating temperature

RGB to YCrCb Conversion

Digital Gain

! Hardware JPEG Compression for both video and snapshot

! System management

Internal Clock generation from 12MHz Crystal

Power management

Reset generation

! JTAG based serial on-chip debug interface

System Block Diagram

USART

USB

Flash

RAM

LM9702

CMOS Sensor

Module

SD CARD

2002 National Semiconductor Corporation

www.national.com

12 3 4

中文翻译

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与LM9702相关器件

型号	品牌	获取价格	描述	数据表
LM9702SL	NSC	获取价格	LM9702 Real Time Digital Image Processor
LM9704	NSC	获取价格	Real Time Digital Image Processor
LM9704SL	NSC	获取价格	Real Time Digital Image Processor
LM9704SLX	NSC	获取价格	暂无描述
LM97593	NSC	获取价格	Dual ADC / Digital Tuner / AGC
LM97593EB	NSC	获取价格	Dual ADC / Digital Tuner / AGC
LM97593VH	NSC	获取价格	Dual ADC / Digital Tuner / AGC
LM97600	TI	获取价格	7.6-Bit, 1/2/4 Channel, 5/2.5/1.25 GSPS, High Performance, Low Power A/D Converter
LM9800	NSC	获取价格	8-Bit Greyscale/24-Bit Color Linear CCD Sensor Processor
LM9800CCV	NSC	获取价格	8-Bit Greyscale/24-Bit Color Linear CCD Sensor Processor

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