NSC LM9647-5SENSORS Datasheet

2002 National Semiconductor Corporation www.national.com

ADVANCE INFORMATION

LM9647 Color CMOS Image Sensor VGA 68 FPS

General Description

The LM9647 is a high performance, low power, 1/4" VGA CMOS
Active Pixel Sensor capable of capturing color still or motion
images and converting them to a digital data stream.

Excellent image quality is achieved by integrating a high perfor­mance analog signal processor comprising of a high speed 10
bit A/D convertor, fixed pattern noise elimination circuits and
separate color gain amplifiers . The offset and black level can be
automatically adjusted on chip using a full loop black level com­pensation 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, tim­ing 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:

- Master clock divider

- Inter row delay

- Inter frame delay

- Partial frame integration

f Four channels of digitally programmable analog gain
f Full automatic servo loop for black level & offset adjustment

on each gain channel

f Horizontal & vertical sub-sampling (2:1 & 4:2) with averaging
f Windowing
f Programmable pixel clock, inter-frame and inter-line delays

f I2 C compatible serial control interface
f Power on reset & power down mode

Applications

f Dual Mode Camera
f Digital Still Camera
f Security Camera
f Machine Vision

Key Specifications

Array Format

Total: 488 x 672
Active: 488 x 648

Effective Image Area

Total: 2.93mm x 4.03mm

Active: 2.93mm x 3.89 mm
Optical Format 1/4"
Pixel Size 6.0µm x 6.0µm
Video Outputs 8 & 10 Bit Digital
Frame Rate 68 frames per second
Dynamic Range 57 dB
Electronic Shutter Rolling Reset
FPN 0.5%
PRMU 1.7%
Sensitivity 2.5 volts/lux.s
Fill Factor 49%
Color Mosaic Bayer pattern
Package 32 LCC
Single Supply 3.0V +/-10%
Power Consumption 130mW
Operating Temp -10oC to 50oC

Overall Chip Block Diagram

Column CDS

Horizontal

Register

Digital Video

Framer

Black Level

Compensation

ch0

MUX

d[9:0]
pclk

hsync

vsync

Row Address

Decoder

10 bit A/D

snapshot

extsync

APS Array I2C Compatible

Serial I/F

Register

Bank

sclk sda sadr

POR

Power

clk gen

Control

mclkpwdresetb

Master Sensor Controller

ch1
ch2

ch3

+/-

+/­+/-

+/-

Figure 1. Chip Block Diagram

LM9647 Color CMOS Image Sensor VGA 68 FPS

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.

www.national.com

LM9647 Color CMOS Image Sensor VGA 68 FPS

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NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
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a significant injury to the user.

2. A critical component is any component of a life support
device or system whose failure to perform can be reasonably
expected to cause the failure of the life support device or
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Ordering Information (Product, Samples & Design In Tools)

Item Description Part Number

LM9647

LM9647 VGA, 68 frames per second, color CMOS image sensor. This sen­sor is shipped in a 48 pin ceramic leadless chip carrier package. Minimum
order quantity, one tray of 176 units.

LM9647CEA

Sample Kit This kit includes 5 LM9647 samples and complete product datasheet. LM9647SAMPLE-KIT

Headboard

This is a small PCB that houses the LM9647 sensor together with all neces­sary discrete components. The headboard is supplied with C-MOUNT lens
block (lens not included) and documentation. M12 Lens mounts (not
included) can also be mounted on this board.

LM9647HEADBOARD

Evaluation Kit

The evaluation kit is a complete software/hardware solution designed to
give the system designer a complete raw data evaluation toolset for the
LM9647 sensor.

The kit contains a LM9647 headboard (see above), C-MOUNT lens, capture
and display board, power supply, cables, SNAPS EVAL version Windows
application software and documentation.

LM9647EVAL-KIT

1/4” Lens Kit

The 1/4” lens kit includes four 1/4” M12 lenses and an M12 mount that can
be attached to any LM9647 headboard (see above). All lenses in the kit
have been tested by National Semiconductor and are supplied with docu­mentation and test data.

LM96-1/4-LENS-KIT