lm9618 National Semiconductor Corporation, lm9618 Datasheet

lm9618

Manufacturer Part Number

lm9618

Description

Monochrome Cmos Image Sensor Vga 30 Fps

Manufacturer

National Semiconductor Corporation

Datasheet

1.LM9618.pdf (2 pages)

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LM9618

General Description

The LM9618 is a high performance, low power, 1/3” VGA CMOS

Active Pixel Sensor capable of capturing grey-scale digital still or

motion images and converting them to a digital data stream.

In addition to the active pixel array, an on-chip 12 bit A/D conver-

tor, fixed pattern noise elimination circuits, a video gain and sep-

arate color gain are provided. Furthermore, an integrated

programmable smart timing and control circuit allows the user

maximum flexibility in adjusting integration time, active window

size, gain and frame rate. Various control, timing and power

modes are also provided.

The excellent linear dynamic range of the sensor can be

extended to above 100dB by programming a non linear

response curve that matches the response of the human eye.

Features

f Video or snapshot operations

f Progressive scan and interlace read out modes.

f Programmable pixel clock, inter-frame and inter-line delays.

f Programmable partial or full frame integration

f Programmable gain and individual color gain

f Horizontal & vertical sub-sampling (2:1 & 4:2)

f Programmable digital video response curve

f Windowing

f External snapshot trigger & event synchronisation signals

f Auto black level compensation

f Flexible digital video read-out supporting programmable:

f Programmable via 2 wire I

f Power on reset & power down mode

Overall Chip Block Diagram

- polarity for synchronisation and pixel clock signals

- leading edge adjustment for horizontal synchronization

2002 National Semiconductor Corporation

reset

Row Address

Clock Gen

Decoder

POR

Reset

mclk

Gen

Monochrome

(sequencer)

Row Address

Controller

Gen

APS Array

C compatible serial interface

CMOS Image Sensor VGA 30 FPS

extsync

Vertical

Timing

Master Timer

snapshot

Horizontal

Timing

AMP

Applications

f Security Cameras

f Machine Vision

f Automotive

f Biometrics

f IR imaging

f Barcode Scanners

Key Specifications

Control

Effective Image Area

Optical Format

Pixel Size

Video Outputs

Frame Rate

Dynamic Range

Electronic Shutter

FPN

PRMU

Sensitivity

Quantum Efficiency

Fill Factor

Package

Single Supply

Power Consumption

Operating Temp

Power

Array Format

pdwn

Gain

MUX

12 Bit A/D

ADVANCE INFORMATION

Total:

Active: 648H x 488 V

Total: 4.98 mm x 3.78 mm

Active: 4.86 mm x 3.66 mm

1/3“

7.5 m x 7.5 m

8,10 & 12 Bit Digital

30 frames per second

62dB in linear mode

110dB in non linear mode

Rolling reset

0.1%

1.5%

5 V/lux.s

27%

47%

48 CLCC

3.3 V +/-10%

120 mW

-40 to 85

C Compatible

Serial I/F

664H x 504V

www.national.com

May 2002

pclk

hsync

vsync

d[11:0]

sda

sclk

sadr

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lm9618 Summary of contents

Page 1

... CMOS Image Sensor VGA 30 FPS Monochrome General Description The LM9618 is a high performance, low power, 1/3” VGA CMOS Active Pixel Sensor capable of capturing grey-scale digital still or motion images and converting them to a digital data stream. In addition to the active pixel array, an on-chip 12 bit A/D conver- tor, fixed pattern noise elimination circuits, a video gain and sep- arate color gain are provided ...

Page 2

... The 1/3” lens kit consists of four 1/3” M12 lenses and an M12 mount that can be attached to any LM9618 headboard (see above). All lenses in the kit 1/3” Lens Kit have been tested by National Semiconductor and are supplied with docu- mentation and test data ...

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