lm9637 National Semiconductor Corporation, lm9637 Datasheet

lm9637

Manufacturer Part Number

lm9637

Description

Monochrome Cmos Image Sensor Vga 68 Fps

Manufacturer

National Semiconductor Corporation

Datasheet

1.LM9637.pdf (2 pages)

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LM9637 Monochrome CMOS Image Sensor VGA 68 FPS

General Description

The LM9637 is a high performance, low power, 1/4" VGA CMOS

Active Pixel Sensor capable of capturing monochrome still or

motion images and converting them to a digital data stream.

Excellent image quality is achieved by integrating a high perfor-

mance analog signal processor comprising of a high speed 10

bit A/D convertor, fixed pattern noise elimination circuits and a

programmable gain amplifier. The offset and black level can be

automatically adjusted on chip using a full loop black level com-

pensation circuit.

Furthermore, a programmable smart timing and control circuit

allowing the user maximum flexibility in adjusting integration

time, active window size, gain, frame rate. Various control, tim-

ing and power modes are also provided.

Features

f Master and slave mode operation

f Progressive scan read out with horizontal and vertical flip

f Programmable Exposure:

f Programmable gain amplifier

f Full automatic servo loop for black level & offset adjustment

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

f Windowing

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

f I

f Power on reset & power down mode

Overall Chip Block Diagram

on each gain channel

- Master clock divider

- Inter row delay

- Inter frame delay

- Partial frame integration

2002 National Semiconductor Corporation

C compatible serial control interface

Column CDS

APS Array

+/-

Bank

Amp

Figure 1. Chip Block Diagram

sclk sda

C Compatible

Serial I/F

Applications

f Security Camera

f Machine Vision

f Barcode Scanners

f Biometrics

Key Specifications

Array Format

Effective Image Area

Optical Format

Pixel Size

Video Outputs

Frame Rate

Dynamic Range

Electronic Shutter

FPN

PRMU

Sensitivity

Fill Factor

Micro Lens

Package

Single Supply

Power Consumption

Operating Temp

sadr

Master Sensor Controller

10 bit A/D

POR

resetb

ADVANCE INFORMATION

Control

Power

pwd

Total: 488 x 672

Active: 488 x 648

Total: 2.93mm x 4.03mm

Active: 2.93mm x 3.89 mm

1/4"

6.0 m x 6.0 m

8 & 10 Bit Digital

68 frames per second

57 dB

Rolling Reset

0.5%

1.7%

2.40 volts/lux.s

49%

none

32 LCC

3.0V +/-10%

130mW

-10

C to 50

clk gen

mclk

www.national.com

MAY 2002

snapshot

extsync

pclk

hsync

vsync

d[9:0]

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lm9637 Summary of contents

Page 1

... LM9637 Monochrome CMOS Image Sensor VGA 68 FPS General Description The LM9637 is a high performance, low power, 1/4" VGA CMOS Active Pixel Sensor capable of capturing monochrome still or motion images and converting them to a digital data stream. Excellent image quality is achieved by integrating a high perfor- ...

Page 2

... Minimum order quantity, one tray of 176 units. Sample Kit This kit includes 5 LM9637 samples and complete product datasheet. This is a small PCB that houses the LM9637 sensor together with all neces- sary discrete components. The headboard is supplied with C-MOUNT lens Headboard block (lens not included) and documentation ...

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